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path: root/drivers/media/dvb-frontends/dib8000.c
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Diffstat (limited to 'drivers/media/dvb-frontends/dib8000.c')
-rw-r--r--drivers/media/dvb-frontends/dib8000.c4521
1 files changed, 4521 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/dib8000.c b/drivers/media/dvb-frontends/dib8000.c
new file mode 100644
index 000000000..8c6663b63
--- /dev/null
+++ b/drivers/media/dvb-frontends/dib8000.c
@@ -0,0 +1,4521 @@
+/*
+ * Linux-DVB Driver for DiBcom's DiB8000 chip (ISDB-T).
+ *
+ * Copyright (C) 2009 DiBcom (http://www.dibcom.fr/)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2.
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <asm/div64.h>
+
+#include "dvb_math.h"
+
+#include "dvb_frontend.h"
+
+#include "dib8000.h"
+
+#define LAYER_ALL -1
+#define LAYER_A 1
+#define LAYER_B 2
+#define LAYER_C 3
+
+#define MAX_NUMBER_OF_FRONTENDS 6
+/* #define DIB8000_AGC_FREEZE */
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "turn on debugging (default: 0)");
+
+#define dprintk(args...) do { if (debug) { printk(KERN_DEBUG "DiB8000: "); printk(args); printk("\n"); } } while (0)
+
+struct i2c_device {
+ struct i2c_adapter *adap;
+ u8 addr;
+ u8 *i2c_write_buffer;
+ u8 *i2c_read_buffer;
+ struct mutex *i2c_buffer_lock;
+};
+
+enum param_loop_step {
+ LOOP_TUNE_1,
+ LOOP_TUNE_2
+};
+
+enum dib8000_autosearch_step {
+ AS_START = 0,
+ AS_SEARCHING_FFT,
+ AS_SEARCHING_GUARD,
+ AS_DONE = 100,
+};
+
+enum timeout_mode {
+ SYMBOL_DEPENDENT_OFF = 0,
+ SYMBOL_DEPENDENT_ON,
+};
+
+struct dib8000_state {
+ struct dib8000_config cfg;
+
+ struct i2c_device i2c;
+
+ struct dibx000_i2c_master i2c_master;
+
+ u16 wbd_ref;
+
+ u8 current_band;
+ u32 current_bandwidth;
+ struct dibx000_agc_config *current_agc;
+ u32 timf;
+ u32 timf_default;
+
+ u8 div_force_off:1;
+ u8 div_state:1;
+ u16 div_sync_wait;
+
+ u8 agc_state;
+ u8 differential_constellation;
+ u8 diversity_onoff;
+
+ s16 ber_monitored_layer;
+ u16 gpio_dir;
+ u16 gpio_val;
+
+ u16 revision;
+ u8 isdbt_cfg_loaded;
+ enum frontend_tune_state tune_state;
+ s32 status;
+
+ struct dvb_frontend *fe[MAX_NUMBER_OF_FRONTENDS];
+
+ /* for the I2C transfer */
+ struct i2c_msg msg[2];
+ u8 i2c_write_buffer[4];
+ u8 i2c_read_buffer[2];
+ struct mutex i2c_buffer_lock;
+ u8 input_mode_mpeg;
+
+ u16 tuner_enable;
+ struct i2c_adapter dib8096p_tuner_adap;
+ u16 current_demod_bw;
+
+ u16 seg_mask;
+ u16 seg_diff_mask;
+ u16 mode;
+ u8 layer_b_nb_seg;
+ u8 layer_c_nb_seg;
+
+ u8 channel_parameters_set;
+ u16 autosearch_state;
+ u16 found_nfft;
+ u16 found_guard;
+ u8 subchannel;
+ u8 symbol_duration;
+ unsigned long timeout;
+ u8 longest_intlv_layer;
+ u16 output_mode;
+
+ /* for DVBv5 stats */
+ s64 init_ucb;
+ unsigned long per_jiffies_stats;
+ unsigned long ber_jiffies_stats;
+ unsigned long ber_jiffies_stats_layer[3];
+
+#ifdef DIB8000_AGC_FREEZE
+ u16 agc1_max;
+ u16 agc1_min;
+ u16 agc2_max;
+ u16 agc2_min;
+#endif
+};
+
+enum dib8000_power_mode {
+ DIB8000_POWER_ALL = 0,
+ DIB8000_POWER_INTERFACE_ONLY,
+};
+
+static u16 dib8000_i2c_read16(struct i2c_device *i2c, u16 reg)
+{
+ u16 ret;
+ struct i2c_msg msg[2] = {
+ {.addr = i2c->addr >> 1, .flags = 0, .len = 2},
+ {.addr = i2c->addr >> 1, .flags = I2C_M_RD, .len = 2},
+ };
+
+ if (mutex_lock_interruptible(i2c->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return 0;
+ }
+
+ msg[0].buf = i2c->i2c_write_buffer;
+ msg[0].buf[0] = reg >> 8;
+ msg[0].buf[1] = reg & 0xff;
+ msg[1].buf = i2c->i2c_read_buffer;
+
+ if (i2c_transfer(i2c->adap, msg, 2) != 2)
+ dprintk("i2c read error on %d", reg);
+
+ ret = (msg[1].buf[0] << 8) | msg[1].buf[1];
+ mutex_unlock(i2c->i2c_buffer_lock);
+ return ret;
+}
+
+static u16 __dib8000_read_word(struct dib8000_state *state, u16 reg)
+{
+ u16 ret;
+
+ state->i2c_write_buffer[0] = reg >> 8;
+ state->i2c_write_buffer[1] = reg & 0xff;
+
+ memset(state->msg, 0, 2 * sizeof(struct i2c_msg));
+ state->msg[0].addr = state->i2c.addr >> 1;
+ state->msg[0].flags = 0;
+ state->msg[0].buf = state->i2c_write_buffer;
+ state->msg[0].len = 2;
+ state->msg[1].addr = state->i2c.addr >> 1;
+ state->msg[1].flags = I2C_M_RD;
+ state->msg[1].buf = state->i2c_read_buffer;
+ state->msg[1].len = 2;
+
+ if (i2c_transfer(state->i2c.adap, state->msg, 2) != 2)
+ dprintk("i2c read error on %d", reg);
+
+ ret = (state->i2c_read_buffer[0] << 8) | state->i2c_read_buffer[1];
+
+ return ret;
+}
+
+static u16 dib8000_read_word(struct dib8000_state *state, u16 reg)
+{
+ u16 ret;
+
+ if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return 0;
+ }
+
+ ret = __dib8000_read_word(state, reg);
+
+ mutex_unlock(&state->i2c_buffer_lock);
+
+ return ret;
+}
+
+static u32 dib8000_read32(struct dib8000_state *state, u16 reg)
+{
+ u16 rw[2];
+
+ if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return 0;
+ }
+
+ rw[0] = __dib8000_read_word(state, reg + 0);
+ rw[1] = __dib8000_read_word(state, reg + 1);
+
+ mutex_unlock(&state->i2c_buffer_lock);
+
+ return ((rw[0] << 16) | (rw[1]));
+}
+
+static int dib8000_i2c_write16(struct i2c_device *i2c, u16 reg, u16 val)
+{
+ struct i2c_msg msg = {.addr = i2c->addr >> 1, .flags = 0, .len = 4};
+ int ret = 0;
+
+ if (mutex_lock_interruptible(i2c->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return -EINVAL;
+ }
+
+ msg.buf = i2c->i2c_write_buffer;
+ msg.buf[0] = (reg >> 8) & 0xff;
+ msg.buf[1] = reg & 0xff;
+ msg.buf[2] = (val >> 8) & 0xff;
+ msg.buf[3] = val & 0xff;
+
+ ret = i2c_transfer(i2c->adap, &msg, 1) != 1 ? -EREMOTEIO : 0;
+ mutex_unlock(i2c->i2c_buffer_lock);
+
+ return ret;
+}
+
+static int dib8000_write_word(struct dib8000_state *state, u16 reg, u16 val)
+{
+ int ret;
+
+ if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return -EINVAL;
+ }
+
+ state->i2c_write_buffer[0] = (reg >> 8) & 0xff;
+ state->i2c_write_buffer[1] = reg & 0xff;
+ state->i2c_write_buffer[2] = (val >> 8) & 0xff;
+ state->i2c_write_buffer[3] = val & 0xff;
+
+ memset(&state->msg[0], 0, sizeof(struct i2c_msg));
+ state->msg[0].addr = state->i2c.addr >> 1;
+ state->msg[0].flags = 0;
+ state->msg[0].buf = state->i2c_write_buffer;
+ state->msg[0].len = 4;
+
+ ret = (i2c_transfer(state->i2c.adap, state->msg, 1) != 1 ?
+ -EREMOTEIO : 0);
+ mutex_unlock(&state->i2c_buffer_lock);
+
+ return ret;
+}
+
+static const s16 coeff_2k_sb_1seg_dqpsk[8] = {
+ (769 << 5) | 0x0a, (745 << 5) | 0x03, (595 << 5) | 0x0d, (769 << 5) | 0x0a, (920 << 5) | 0x09, (784 << 5) | 0x02, (519 << 5) | 0x0c,
+ (920 << 5) | 0x09
+};
+
+static const s16 coeff_2k_sb_1seg[8] = {
+ (692 << 5) | 0x0b, (683 << 5) | 0x01, (519 << 5) | 0x09, (692 << 5) | 0x0b, 0 | 0x1f, 0 | 0x1f, 0 | 0x1f, 0 | 0x1f
+};
+
+static const s16 coeff_2k_sb_3seg_0dqpsk_1dqpsk[8] = {
+ (832 << 5) | 0x10, (912 << 5) | 0x05, (900 << 5) | 0x12, (832 << 5) | 0x10, (-931 << 5) | 0x0f, (912 << 5) | 0x04, (807 << 5) | 0x11,
+ (-931 << 5) | 0x0f
+};
+
+static const s16 coeff_2k_sb_3seg_0dqpsk[8] = {
+ (622 << 5) | 0x0c, (941 << 5) | 0x04, (796 << 5) | 0x10, (622 << 5) | 0x0c, (982 << 5) | 0x0c, (519 << 5) | 0x02, (572 << 5) | 0x0e,
+ (982 << 5) | 0x0c
+};
+
+static const s16 coeff_2k_sb_3seg_1dqpsk[8] = {
+ (699 << 5) | 0x14, (607 << 5) | 0x04, (944 << 5) | 0x13, (699 << 5) | 0x14, (-720 << 5) | 0x0d, (640 << 5) | 0x03, (866 << 5) | 0x12,
+ (-720 << 5) | 0x0d
+};
+
+static const s16 coeff_2k_sb_3seg[8] = {
+ (664 << 5) | 0x0c, (925 << 5) | 0x03, (937 << 5) | 0x10, (664 << 5) | 0x0c, (-610 << 5) | 0x0a, (697 << 5) | 0x01, (836 << 5) | 0x0e,
+ (-610 << 5) | 0x0a
+};
+
+static const s16 coeff_4k_sb_1seg_dqpsk[8] = {
+ (-955 << 5) | 0x0e, (687 << 5) | 0x04, (818 << 5) | 0x10, (-955 << 5) | 0x0e, (-922 << 5) | 0x0d, (750 << 5) | 0x03, (665 << 5) | 0x0f,
+ (-922 << 5) | 0x0d
+};
+
+static const s16 coeff_4k_sb_1seg[8] = {
+ (638 << 5) | 0x0d, (683 << 5) | 0x02, (638 << 5) | 0x0d, (638 << 5) | 0x0d, (-655 << 5) | 0x0a, (517 << 5) | 0x00, (698 << 5) | 0x0d,
+ (-655 << 5) | 0x0a
+};
+
+static const s16 coeff_4k_sb_3seg_0dqpsk_1dqpsk[8] = {
+ (-707 << 5) | 0x14, (910 << 5) | 0x06, (889 << 5) | 0x16, (-707 << 5) | 0x14, (-958 << 5) | 0x13, (993 << 5) | 0x05, (523 << 5) | 0x14,
+ (-958 << 5) | 0x13
+};
+
+static const s16 coeff_4k_sb_3seg_0dqpsk[8] = {
+ (-723 << 5) | 0x13, (910 << 5) | 0x05, (777 << 5) | 0x14, (-723 << 5) | 0x13, (-568 << 5) | 0x0f, (547 << 5) | 0x03, (696 << 5) | 0x12,
+ (-568 << 5) | 0x0f
+};
+
+static const s16 coeff_4k_sb_3seg_1dqpsk[8] = {
+ (-940 << 5) | 0x15, (607 << 5) | 0x05, (915 << 5) | 0x16, (-940 << 5) | 0x15, (-848 << 5) | 0x13, (683 << 5) | 0x04, (543 << 5) | 0x14,
+ (-848 << 5) | 0x13
+};
+
+static const s16 coeff_4k_sb_3seg[8] = {
+ (612 << 5) | 0x12, (910 << 5) | 0x04, (864 << 5) | 0x14, (612 << 5) | 0x12, (-869 << 5) | 0x13, (683 << 5) | 0x02, (869 << 5) | 0x12,
+ (-869 << 5) | 0x13
+};
+
+static const s16 coeff_8k_sb_1seg_dqpsk[8] = {
+ (-835 << 5) | 0x12, (684 << 5) | 0x05, (735 << 5) | 0x14, (-835 << 5) | 0x12, (-598 << 5) | 0x10, (781 << 5) | 0x04, (739 << 5) | 0x13,
+ (-598 << 5) | 0x10
+};
+
+static const s16 coeff_8k_sb_1seg[8] = {
+ (673 << 5) | 0x0f, (683 << 5) | 0x03, (808 << 5) | 0x12, (673 << 5) | 0x0f, (585 << 5) | 0x0f, (512 << 5) | 0x01, (780 << 5) | 0x0f,
+ (585 << 5) | 0x0f
+};
+
+static const s16 coeff_8k_sb_3seg_0dqpsk_1dqpsk[8] = {
+ (863 << 5) | 0x17, (930 << 5) | 0x07, (878 << 5) | 0x19, (863 << 5) | 0x17, (0 << 5) | 0x14, (521 << 5) | 0x05, (980 << 5) | 0x18,
+ (0 << 5) | 0x14
+};
+
+static const s16 coeff_8k_sb_3seg_0dqpsk[8] = {
+ (-924 << 5) | 0x17, (910 << 5) | 0x06, (774 << 5) | 0x17, (-924 << 5) | 0x17, (-877 << 5) | 0x15, (565 << 5) | 0x04, (553 << 5) | 0x15,
+ (-877 << 5) | 0x15
+};
+
+static const s16 coeff_8k_sb_3seg_1dqpsk[8] = {
+ (-921 << 5) | 0x19, (607 << 5) | 0x06, (881 << 5) | 0x19, (-921 << 5) | 0x19, (-921 << 5) | 0x14, (713 << 5) | 0x05, (1018 << 5) | 0x18,
+ (-921 << 5) | 0x14
+};
+
+static const s16 coeff_8k_sb_3seg[8] = {
+ (514 << 5) | 0x14, (910 << 5) | 0x05, (861 << 5) | 0x17, (514 << 5) | 0x14, (690 << 5) | 0x14, (683 << 5) | 0x03, (662 << 5) | 0x15,
+ (690 << 5) | 0x14
+};
+
+static const s16 ana_fe_coeff_3seg[24] = {
+ 81, 80, 78, 74, 68, 61, 54, 45, 37, 28, 19, 11, 4, 1022, 1017, 1013, 1010, 1008, 1008, 1008, 1008, 1010, 1014, 1017
+};
+
+static const s16 ana_fe_coeff_1seg[24] = {
+ 249, 226, 164, 82, 5, 981, 970, 988, 1018, 20, 31, 26, 8, 1012, 1000, 1018, 1012, 8, 15, 14, 9, 3, 1017, 1003
+};
+
+static const s16 ana_fe_coeff_13seg[24] = {
+ 396, 305, 105, -51, -77, -12, 41, 31, -11, -30, -11, 14, 15, -2, -13, -7, 5, 8, 1, -6, -7, -3, 0, 1
+};
+
+static u16 fft_to_mode(struct dib8000_state *state)
+{
+ u16 mode;
+ switch (state->fe[0]->dtv_property_cache.transmission_mode) {
+ case TRANSMISSION_MODE_2K:
+ mode = 1;
+ break;
+ case TRANSMISSION_MODE_4K:
+ mode = 2;
+ break;
+ default:
+ case TRANSMISSION_MODE_AUTO:
+ case TRANSMISSION_MODE_8K:
+ mode = 3;
+ break;
+ }
+ return mode;
+}
+
+static void dib8000_set_acquisition_mode(struct dib8000_state *state)
+{
+ u16 nud = dib8000_read_word(state, 298);
+ nud |= (1 << 3) | (1 << 0);
+ dprintk("acquisition mode activated");
+ dib8000_write_word(state, 298, nud);
+}
+static int dib8000_set_output_mode(struct dvb_frontend *fe, int mode)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u16 outreg, fifo_threshold, smo_mode, sram = 0x0205; /* by default SDRAM deintlv is enabled */
+
+ state->output_mode = mode;
+ outreg = 0;
+ fifo_threshold = 1792;
+ smo_mode = (dib8000_read_word(state, 299) & 0x0050) | (1 << 1);
+
+ dprintk("-I- Setting output mode for demod %p to %d",
+ &state->fe[0], mode);
+
+ switch (mode) {
+ case OUTMODE_MPEG2_PAR_GATED_CLK: // STBs with parallel gated clock
+ outreg = (1 << 10); /* 0x0400 */
+ break;
+ case OUTMODE_MPEG2_PAR_CONT_CLK: // STBs with parallel continues clock
+ outreg = (1 << 10) | (1 << 6); /* 0x0440 */
+ break;
+ case OUTMODE_MPEG2_SERIAL: // STBs with serial input
+ outreg = (1 << 10) | (2 << 6) | (0 << 1); /* 0x0482 */
+ break;
+ case OUTMODE_DIVERSITY:
+ if (state->cfg.hostbus_diversity) {
+ outreg = (1 << 10) | (4 << 6); /* 0x0500 */
+ sram &= 0xfdff;
+ } else
+ sram |= 0x0c00;
+ break;
+ case OUTMODE_MPEG2_FIFO: // e.g. USB feeding
+ smo_mode |= (3 << 1);
+ fifo_threshold = 512;
+ outreg = (1 << 10) | (5 << 6);
+ break;
+ case OUTMODE_HIGH_Z: // disable
+ outreg = 0;
+ break;
+
+ case OUTMODE_ANALOG_ADC:
+ outreg = (1 << 10) | (3 << 6);
+ dib8000_set_acquisition_mode(state);
+ break;
+
+ default:
+ dprintk("Unhandled output_mode passed to be set for demod %p",
+ &state->fe[0]);
+ return -EINVAL;
+ }
+
+ if (state->cfg.output_mpeg2_in_188_bytes)
+ smo_mode |= (1 << 5);
+
+ dib8000_write_word(state, 299, smo_mode);
+ dib8000_write_word(state, 300, fifo_threshold); /* synchronous fread */
+ dib8000_write_word(state, 1286, outreg);
+ dib8000_write_word(state, 1291, sram);
+
+ return 0;
+}
+
+static int dib8000_set_diversity_in(struct dvb_frontend *fe, int onoff)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u16 tmp, sync_wait = dib8000_read_word(state, 273) & 0xfff0;
+
+ dprintk("set diversity input to %i", onoff);
+ if (!state->differential_constellation) {
+ dib8000_write_word(state, 272, 1 << 9); //dvsy_off_lmod4 = 1
+ dib8000_write_word(state, 273, sync_wait | (1 << 2) | 2); // sync_enable = 1; comb_mode = 2
+ } else {
+ dib8000_write_word(state, 272, 0); //dvsy_off_lmod4 = 0
+ dib8000_write_word(state, 273, sync_wait); // sync_enable = 0; comb_mode = 0
+ }
+ state->diversity_onoff = onoff;
+
+ switch (onoff) {
+ case 0: /* only use the internal way - not the diversity input */
+ dib8000_write_word(state, 270, 1);
+ dib8000_write_word(state, 271, 0);
+ break;
+ case 1: /* both ways */
+ dib8000_write_word(state, 270, 6);
+ dib8000_write_word(state, 271, 6);
+ break;
+ case 2: /* only the diversity input */
+ dib8000_write_word(state, 270, 0);
+ dib8000_write_word(state, 271, 1);
+ break;
+ }
+
+ if (state->revision == 0x8002) {
+ tmp = dib8000_read_word(state, 903);
+ dib8000_write_word(state, 903, tmp & ~(1 << 3));
+ msleep(30);
+ dib8000_write_word(state, 903, tmp | (1 << 3));
+ }
+ return 0;
+}
+
+static void dib8000_set_power_mode(struct dib8000_state *state, enum dib8000_power_mode mode)
+{
+ /* by default everything is going to be powered off */
+ u16 reg_774 = 0x3fff, reg_775 = 0xffff, reg_776 = 0xffff,
+ reg_900 = (dib8000_read_word(state, 900) & 0xfffc) | 0x3,
+ reg_1280;
+
+ if (state->revision != 0x8090)
+ reg_1280 = (dib8000_read_word(state, 1280) & 0x00ff) | 0xff00;
+ else
+ reg_1280 = (dib8000_read_word(state, 1280) & 0x707f) | 0x8f80;
+
+ /* now, depending on the requested mode, we power on */
+ switch (mode) {
+ /* power up everything in the demod */
+ case DIB8000_POWER_ALL:
+ reg_774 = 0x0000;
+ reg_775 = 0x0000;
+ reg_776 = 0x0000;
+ reg_900 &= 0xfffc;
+ if (state->revision != 0x8090)
+ reg_1280 &= 0x00ff;
+ else
+ reg_1280 &= 0x707f;
+ break;
+ case DIB8000_POWER_INTERFACE_ONLY:
+ if (state->revision != 0x8090)
+ reg_1280 &= 0x00ff;
+ else
+ reg_1280 &= 0xfa7b;
+ break;
+ }
+
+ dprintk("powermode : 774 : %x ; 775 : %x; 776 : %x ; 900 : %x; 1280 : %x", reg_774, reg_775, reg_776, reg_900, reg_1280);
+ dib8000_write_word(state, 774, reg_774);
+ dib8000_write_word(state, 775, reg_775);
+ dib8000_write_word(state, 776, reg_776);
+ dib8000_write_word(state, 900, reg_900);
+ dib8000_write_word(state, 1280, reg_1280);
+}
+
+static int dib8000_set_adc_state(struct dib8000_state *state, enum dibx000_adc_states no)
+{
+ int ret = 0;
+ u16 reg, reg_907 = dib8000_read_word(state, 907);
+ u16 reg_908 = dib8000_read_word(state, 908);
+
+ switch (no) {
+ case DIBX000_SLOW_ADC_ON:
+ if (state->revision != 0x8090) {
+ reg_908 |= (1 << 1) | (1 << 0);
+ ret |= dib8000_write_word(state, 908, reg_908);
+ reg_908 &= ~(1 << 1);
+ } else {
+ reg = dib8000_read_word(state, 1925);
+ /* en_slowAdc = 1 & reset_sladc = 1 */
+ dib8000_write_word(state, 1925, reg |
+ (1<<4) | (1<<2));
+
+ /* read acces to make it works... strange ... */
+ reg = dib8000_read_word(state, 1925);
+ msleep(20);
+ /* en_slowAdc = 1 & reset_sladc = 0 */
+ dib8000_write_word(state, 1925, reg & ~(1<<4));
+
+ reg = dib8000_read_word(state, 921) & ~((0x3 << 14)
+ | (0x3 << 12));
+ /* ref = Vin1 => Vbg ; sel = Vin0 or Vin3 ;
+ (Vin2 = Vcm) */
+ dib8000_write_word(state, 921, reg | (1 << 14)
+ | (3 << 12));
+ }
+ break;
+
+ case DIBX000_SLOW_ADC_OFF:
+ if (state->revision == 0x8090) {
+ reg = dib8000_read_word(state, 1925);
+ /* reset_sladc = 1 en_slowAdc = 0 */
+ dib8000_write_word(state, 1925,
+ (reg & ~(1<<2)) | (1<<4));
+ }
+ reg_908 |= (1 << 1) | (1 << 0);
+ break;
+
+ case DIBX000_ADC_ON:
+ reg_907 &= 0x0fff;
+ reg_908 &= 0x0003;
+ break;
+
+ case DIBX000_ADC_OFF: // leave the VBG voltage on
+ reg_907 = (1 << 13) | (1 << 12);
+ reg_908 = (1 << 6) | (1 << 5) | (1 << 4) | (1 << 3) | (1 << 1);
+ break;
+
+ case DIBX000_VBG_ENABLE:
+ reg_907 &= ~(1 << 15);
+ break;
+
+ case DIBX000_VBG_DISABLE:
+ reg_907 |= (1 << 15);
+ break;
+
+ default:
+ break;
+ }
+
+ ret |= dib8000_write_word(state, 907, reg_907);
+ ret |= dib8000_write_word(state, 908, reg_908);
+
+ return ret;
+}
+
+static int dib8000_set_bandwidth(struct dvb_frontend *fe, u32 bw)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u32 timf;
+
+ if (bw == 0)
+ bw = 6000;
+
+ if (state->timf == 0) {
+ dprintk("using default timf");
+ timf = state->timf_default;
+ } else {
+ dprintk("using updated timf");
+ timf = state->timf;
+ }
+
+ dib8000_write_word(state, 29, (u16) ((timf >> 16) & 0xffff));
+ dib8000_write_word(state, 30, (u16) ((timf) & 0xffff));
+
+ return 0;
+}
+
+static int dib8000_sad_calib(struct dib8000_state *state)
+{
+ u8 sad_sel = 3;
+
+ if (state->revision == 0x8090) {
+ dib8000_write_word(state, 922, (sad_sel << 2));
+ dib8000_write_word(state, 923, 2048);
+
+ dib8000_write_word(state, 922, (sad_sel << 2) | 0x1);
+ dib8000_write_word(state, 922, (sad_sel << 2));
+ } else {
+ /* internal */
+ dib8000_write_word(state, 923, (0 << 1) | (0 << 0));
+ dib8000_write_word(state, 924, 776);
+
+ /* do the calibration */
+ dib8000_write_word(state, 923, (1 << 0));
+ dib8000_write_word(state, 923, (0 << 0));
+ }
+
+ msleep(1);
+ return 0;
+}
+
+static int dib8000_set_wbd_ref(struct dvb_frontend *fe, u16 value)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ if (value > 4095)
+ value = 4095;
+ state->wbd_ref = value;
+ return dib8000_write_word(state, 106, value);
+}
+
+static void dib8000_reset_pll_common(struct dib8000_state *state, const struct dibx000_bandwidth_config *bw)
+{
+ dprintk("ifreq: %d %x, inversion: %d", bw->ifreq, bw->ifreq, bw->ifreq >> 25);
+ if (state->revision != 0x8090) {
+ dib8000_write_word(state, 23,
+ (u16) (((bw->internal * 1000) >> 16) & 0xffff));
+ dib8000_write_word(state, 24,
+ (u16) ((bw->internal * 1000) & 0xffff));
+ } else {
+ dib8000_write_word(state, 23, (u16) (((bw->internal / 2 * 1000) >> 16) & 0xffff));
+ dib8000_write_word(state, 24,
+ (u16) ((bw->internal / 2 * 1000) & 0xffff));
+ }
+ dib8000_write_word(state, 27, (u16) ((bw->ifreq >> 16) & 0x01ff));
+ dib8000_write_word(state, 28, (u16) (bw->ifreq & 0xffff));
+ dib8000_write_word(state, 26, (u16) ((bw->ifreq >> 25) & 0x0003));
+
+ if (state->revision != 0x8090)
+ dib8000_write_word(state, 922, bw->sad_cfg);
+}
+
+static void dib8000_reset_pll(struct dib8000_state *state)
+{
+ const struct dibx000_bandwidth_config *pll = state->cfg.pll;
+ u16 clk_cfg1, reg;
+
+ if (state->revision != 0x8090) {
+ dib8000_write_word(state, 901,
+ (pll->pll_prediv << 8) | (pll->pll_ratio << 0));
+
+ clk_cfg1 = (1 << 10) | (0 << 9) | (pll->IO_CLK_en_core << 8) |
+ (pll->bypclk_div << 5) | (pll->enable_refdiv << 4) |
+ (1 << 3) | (pll->pll_range << 1) |
+ (pll->pll_reset << 0);
+
+ dib8000_write_word(state, 902, clk_cfg1);
+ clk_cfg1 = (clk_cfg1 & 0xfff7) | (pll->pll_bypass << 3);
+ dib8000_write_word(state, 902, clk_cfg1);
+
+ dprintk("clk_cfg1: 0x%04x", clk_cfg1);
+
+ /* smpl_cfg: P_refclksel=2, P_ensmplsel=1 nodivsmpl=1 */
+ if (state->cfg.pll->ADClkSrc == 0)
+ dib8000_write_word(state, 904,
+ (0 << 15) | (0 << 12) | (0 << 10) |
+ (pll->modulo << 8) |
+ (pll->ADClkSrc << 7) | (0 << 1));
+ else if (state->cfg.refclksel != 0)
+ dib8000_write_word(state, 904, (0 << 15) | (1 << 12) |
+ ((state->cfg.refclksel & 0x3) << 10) |
+ (pll->modulo << 8) |
+ (pll->ADClkSrc << 7) | (0 << 1));
+ else
+ dib8000_write_word(state, 904, (0 << 15) | (1 << 12) |
+ (3 << 10) | (pll->modulo << 8) |
+ (pll->ADClkSrc << 7) | (0 << 1));
+ } else {
+ dib8000_write_word(state, 1856, (!pll->pll_reset<<13) |
+ (pll->pll_range<<12) | (pll->pll_ratio<<6) |
+ (pll->pll_prediv));
+
+ reg = dib8000_read_word(state, 1857);
+ dib8000_write_word(state, 1857, reg|(!pll->pll_bypass<<15));
+
+ reg = dib8000_read_word(state, 1858); /* Force clk out pll /2 */
+ dib8000_write_word(state, 1858, reg | 1);
+
+ dib8000_write_word(state, 904, (pll->modulo << 8));
+ }
+
+ dib8000_reset_pll_common(state, pll);
+}
+
+static int dib8000_update_pll(struct dvb_frontend *fe,
+ struct dibx000_bandwidth_config *pll, u32 bw, u8 ratio)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u16 reg_1857, reg_1856 = dib8000_read_word(state, 1856);
+ u8 loopdiv, prediv, oldprediv = state->cfg.pll->pll_prediv ;
+ u32 internal, xtal;
+
+ /* get back old values */
+ prediv = reg_1856 & 0x3f;
+ loopdiv = (reg_1856 >> 6) & 0x3f;
+
+ if ((pll == NULL) || (pll->pll_prediv == prediv &&
+ pll->pll_ratio == loopdiv))
+ return -EINVAL;
+
+ dprintk("Updating pll (prediv: old = %d new = %d ; loopdiv : old = %d new = %d)", prediv, pll->pll_prediv, loopdiv, pll->pll_ratio);
+ if (state->revision == 0x8090) {
+ reg_1856 &= 0xf000;
+ reg_1857 = dib8000_read_word(state, 1857);
+ /* disable PLL */
+ dib8000_write_word(state, 1857, reg_1857 & ~(1 << 15));
+
+ dib8000_write_word(state, 1856, reg_1856 |
+ ((pll->pll_ratio & 0x3f) << 6) |
+ (pll->pll_prediv & 0x3f));
+
+ /* write new system clk into P_sec_len */
+ internal = dib8000_read32(state, 23) / 1000;
+ dprintk("Old Internal = %d", internal);
+ xtal = 2 * (internal / loopdiv) * prediv;
+ internal = 1000 * (xtal/pll->pll_prediv) * pll->pll_ratio;
+ dprintk("Xtal = %d , New Fmem = %d New Fdemod = %d, New Fsampling = %d", xtal, internal/1000, internal/2000, internal/8000);
+ dprintk("New Internal = %d", internal);
+
+ dib8000_write_word(state, 23,
+ (u16) (((internal / 2) >> 16) & 0xffff));
+ dib8000_write_word(state, 24, (u16) ((internal / 2) & 0xffff));
+ /* enable PLL */
+ dib8000_write_word(state, 1857, reg_1857 | (1 << 15));
+
+ while (((dib8000_read_word(state, 1856)>>15)&0x1) != 1)
+ dprintk("Waiting for PLL to lock");
+
+ /* verify */
+ reg_1856 = dib8000_read_word(state, 1856);
+ dprintk("PLL Updated with prediv = %d and loopdiv = %d",
+ reg_1856&0x3f, (reg_1856>>6)&0x3f);
+ } else {
+ if (bw != state->current_demod_bw) {
+ /** Bandwidth change => force PLL update **/
+ dprintk("PLL: Bandwidth Change %d MHz -> %d MHz (prediv: %d->%d)", state->current_demod_bw / 1000, bw / 1000, oldprediv, state->cfg.pll->pll_prediv);
+
+ if (state->cfg.pll->pll_prediv != oldprediv) {
+ /** Full PLL change only if prediv is changed **/
+
+ /** full update => bypass and reconfigure **/
+ dprintk("PLL: New Setting for %d MHz Bandwidth (prediv: %d, ratio: %d)", bw/1000, state->cfg.pll->pll_prediv, state->cfg.pll->pll_ratio);
+ dib8000_write_word(state, 902, dib8000_read_word(state, 902) | (1<<3)); /* bypass PLL */
+ dib8000_reset_pll(state);
+ dib8000_write_word(state, 898, 0x0004); /* sad */
+ } else
+ ratio = state->cfg.pll->pll_ratio;
+
+ state->current_demod_bw = bw;
+ }
+
+ if (ratio != 0) {
+ /** ratio update => only change ratio **/
+ dprintk("PLL: Update ratio (prediv: %d, ratio: %d)", state->cfg.pll->pll_prediv, ratio);
+ dib8000_write_word(state, 901, (state->cfg.pll->pll_prediv << 8) | (ratio << 0)); /* only the PLL ratio is updated. */
+ }
+ }
+
+ return 0;
+}
+
+static int dib8000_reset_gpio(struct dib8000_state *st)
+{
+ /* reset the GPIOs */
+ dib8000_write_word(st, 1029, st->cfg.gpio_dir);
+ dib8000_write_word(st, 1030, st->cfg.gpio_val);
+
+ /* TODO 782 is P_gpio_od */
+
+ dib8000_write_word(st, 1032, st->cfg.gpio_pwm_pos);
+
+ dib8000_write_word(st, 1037, st->cfg.pwm_freq_div);
+ return 0;
+}
+
+static int dib8000_cfg_gpio(struct dib8000_state *st, u8 num, u8 dir, u8 val)
+{
+ st->cfg.gpio_dir = dib8000_read_word(st, 1029);
+ st->cfg.gpio_dir &= ~(1 << num); /* reset the direction bit */
+ st->cfg.gpio_dir |= (dir & 0x1) << num; /* set the new direction */
+ dib8000_write_word(st, 1029, st->cfg.gpio_dir);
+
+ st->cfg.gpio_val = dib8000_read_word(st, 1030);
+ st->cfg.gpio_val &= ~(1 << num); /* reset the direction bit */
+ st->cfg.gpio_val |= (val & 0x01) << num; /* set the new value */
+ dib8000_write_word(st, 1030, st->cfg.gpio_val);
+
+ dprintk("gpio dir: %x: gpio val: %x", st->cfg.gpio_dir, st->cfg.gpio_val);
+
+ return 0;
+}
+
+static int dib8000_set_gpio(struct dvb_frontend *fe, u8 num, u8 dir, u8 val)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ return dib8000_cfg_gpio(state, num, dir, val);
+}
+
+static const u16 dib8000_defaults[] = {
+ /* auto search configuration - lock0 by default waiting
+ * for cpil_lock; lock1 cpil_lock; lock2 tmcc_sync_lock */
+ 3, 7,
+ 0x0004,
+ 0x0400,
+ 0x0814,
+
+ 12, 11,
+ 0x001b,
+ 0x7740,
+ 0x005b,
+ 0x8d80,
+ 0x01c9,
+ 0xc380,
+ 0x0000,
+ 0x0080,
+ 0x0000,
+ 0x0090,
+ 0x0001,
+ 0xd4c0,
+
+ /*1, 32,
+ 0x6680 // P_corm_thres Lock algorithms configuration */
+
+ 11, 80, /* set ADC level to -16 */
+ (1 << 13) - 825 - 117,
+ (1 << 13) - 837 - 117,
+ (1 << 13) - 811 - 117,
+ (1 << 13) - 766 - 117,
+ (1 << 13) - 737 - 117,
+ (1 << 13) - 693 - 117,
+ (1 << 13) - 648 - 117,
+ (1 << 13) - 619 - 117,
+ (1 << 13) - 575 - 117,
+ (1 << 13) - 531 - 117,
+ (1 << 13) - 501 - 117,
+
+ 4, 108,
+ 0,
+ 0,
+ 0,
+ 0,
+
+ 1, 175,
+ 0x0410,
+ 1, 179,
+ 8192, // P_fft_nb_to_cut
+
+ 6, 181,
+ 0x2800, // P_coff_corthres_ ( 2k 4k 8k ) 0x2800
+ 0x2800,
+ 0x2800,
+ 0x2800, // P_coff_cpilthres_ ( 2k 4k 8k ) 0x2800
+ 0x2800,
+ 0x2800,
+
+ 2, 193,
+ 0x0666, // P_pha3_thres
+ 0x0000, // P_cti_use_cpe, P_cti_use_prog
+
+ 2, 205,
+ 0x200f, // P_cspu_regul, P_cspu_win_cut
+ 0x000f, // P_des_shift_work
+
+ 5, 215,
+ 0x023d, // P_adp_regul_cnt
+ 0x00a4, // P_adp_noise_cnt
+ 0x00a4, // P_adp_regul_ext
+ 0x7ff0, // P_adp_noise_ext
+ 0x3ccc, // P_adp_fil
+
+ 1, 230,
+ 0x0000, // P_2d_byp_ti_num
+
+ 1, 263,
+ 0x800, //P_equal_thres_wgn
+
+ 1, 268,
+ (2 << 9) | 39, // P_equal_ctrl_synchro, P_equal_speedmode
+
+ 1, 270,
+ 0x0001, // P_div_lock0_wait
+ 1, 285,
+ 0x0020, //p_fec_
+ 1, 299,
+ 0x0062, /* P_smo_mode, P_smo_rs_discard, P_smo_fifo_flush, P_smo_pid_parse, P_smo_error_discard */
+
+ 1, 338,
+ (1 << 12) | // P_ctrl_corm_thres4pre_freq_inh=1
+ (1 << 10) |
+ (0 << 9) | /* P_ctrl_pre_freq_inh=0 */
+ (3 << 5) | /* P_ctrl_pre_freq_step=3 */
+ (1 << 0), /* P_pre_freq_win_len=1 */
+
+ 0,
+};
+
+static u16 dib8000_identify(struct i2c_device *client)
+{
+ u16 value;
+
+ //because of glitches sometimes
+ value = dib8000_i2c_read16(client, 896);
+
+ if ((value = dib8000_i2c_read16(client, 896)) != 0x01b3) {
+ dprintk("wrong Vendor ID (read=0x%x)", value);
+ return 0;
+ }
+
+ value = dib8000_i2c_read16(client, 897);
+ if (value != 0x8000 && value != 0x8001 &&
+ value != 0x8002 && value != 0x8090) {
+ dprintk("wrong Device ID (%x)", value);
+ return 0;
+ }
+
+ switch (value) {
+ case 0x8000:
+ dprintk("found DiB8000A");
+ break;
+ case 0x8001:
+ dprintk("found DiB8000B");
+ break;
+ case 0x8002:
+ dprintk("found DiB8000C");
+ break;
+ case 0x8090:
+ dprintk("found DiB8096P");
+ break;
+ }
+ return value;
+}
+
+static int dib8000_read_unc_blocks(struct dvb_frontend *fe, u32 *unc);
+
+static void dib8000_reset_stats(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+ u32 ucb;
+
+ memset(&c->strength, 0, sizeof(c->strength));
+ memset(&c->cnr, 0, sizeof(c->cnr));
+ memset(&c->post_bit_error, 0, sizeof(c->post_bit_error));
+ memset(&c->post_bit_count, 0, sizeof(c->post_bit_count));
+ memset(&c->block_error, 0, sizeof(c->block_error));
+
+ c->strength.len = 1;
+ c->cnr.len = 1;
+ c->block_error.len = 1;
+ c->block_count.len = 1;
+ c->post_bit_error.len = 1;
+ c->post_bit_count.len = 1;
+
+ c->strength.stat[0].scale = FE_SCALE_DECIBEL;
+ c->strength.stat[0].uvalue = 0;
+
+ c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+
+ dib8000_read_unc_blocks(fe, &ucb);
+
+ state->init_ucb = -ucb;
+ state->ber_jiffies_stats = 0;
+ state->per_jiffies_stats = 0;
+ memset(&state->ber_jiffies_stats_layer, 0,
+ sizeof(state->ber_jiffies_stats_layer));
+}
+
+static int dib8000_reset(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+
+ if ((state->revision = dib8000_identify(&state->i2c)) == 0)
+ return -EINVAL;
+
+ /* sram lead in, rdy */
+ if (state->revision != 0x8090)
+ dib8000_write_word(state, 1287, 0x0003);
+
+ if (state->revision == 0x8000)
+ dprintk("error : dib8000 MA not supported");
+
+ dibx000_reset_i2c_master(&state->i2c_master);
+
+ dib8000_set_power_mode(state, DIB8000_POWER_ALL);
+
+ /* always leave the VBG voltage on - it consumes almost nothing but takes a long time to start */
+ dib8000_set_adc_state(state, DIBX000_ADC_OFF);
+
+ /* restart all parts */
+ dib8000_write_word(state, 770, 0xffff);
+ dib8000_write_word(state, 771, 0xffff);
+ dib8000_write_word(state, 772, 0xfffc);
+ dib8000_write_word(state, 898, 0x000c); /* restart sad */
+ if (state->revision == 0x8090)
+ dib8000_write_word(state, 1280, 0x0045);
+ else
+ dib8000_write_word(state, 1280, 0x004d);
+ dib8000_write_word(state, 1281, 0x000c);
+
+ dib8000_write_word(state, 770, 0x0000);
+ dib8000_write_word(state, 771, 0x0000);
+ dib8000_write_word(state, 772, 0x0000);
+ dib8000_write_word(state, 898, 0x0004); // sad
+ dib8000_write_word(state, 1280, 0x0000);
+ dib8000_write_word(state, 1281, 0x0000);
+
+ /* drives */
+ if (state->revision != 0x8090) {
+ if (state->cfg.drives)
+ dib8000_write_word(state, 906, state->cfg.drives);
+ else {
+ dprintk("using standard PAD-drive-settings, please adjust settings in config-struct to be optimal.");
+ /* min drive SDRAM - not optimal - adjust */
+ dib8000_write_word(state, 906, 0x2d98);
+ }
+ }
+
+ dib8000_reset_pll(state);
+ if (state->revision != 0x8090)
+ dib8000_write_word(state, 898, 0x0004);
+
+ if (dib8000_reset_gpio(state) != 0)
+ dprintk("GPIO reset was not successful.");
+
+ if ((state->revision != 0x8090) &&
+ (dib8000_set_output_mode(fe, OUTMODE_HIGH_Z) != 0))
+ dprintk("OUTPUT_MODE could not be resetted.");
+
+ state->current_agc = NULL;
+
+ // P_iqc_alpha_pha, P_iqc_alpha_amp, P_iqc_dcc_alpha, ...
+ /* P_iqc_ca2 = 0; P_iqc_impnc_on = 0; P_iqc_mode = 0; */
+ if (state->cfg.pll->ifreq == 0)
+ dib8000_write_word(state, 40, 0x0755); /* P_iqc_corr_inh = 0 enable IQcorr block */
+ else
+ dib8000_write_word(state, 40, 0x1f55); /* P_iqc_corr_inh = 1 disable IQcorr block */
+
+ {
+ u16 l = 0, r;
+ const u16 *n;
+ n = dib8000_defaults;
+ l = *n++;
+ while (l) {
+ r = *n++;
+ do {
+ dib8000_write_word(state, r, *n++);
+ r++;
+ } while (--l);
+ l = *n++;
+ }
+ }
+
+ state->isdbt_cfg_loaded = 0;
+
+ //div_cfg override for special configs
+ if ((state->revision != 8090) && (state->cfg.div_cfg != 0))
+ dib8000_write_word(state, 903, state->cfg.div_cfg);
+
+ /* unforce divstr regardless whether i2c enumeration was done or not */
+ dib8000_write_word(state, 1285, dib8000_read_word(state, 1285) & ~(1 << 1));
+
+ dib8000_set_bandwidth(fe, 6000);
+
+ dib8000_set_adc_state(state, DIBX000_SLOW_ADC_ON);
+ dib8000_sad_calib(state);
+ if (state->revision != 0x8090)
+ dib8000_set_adc_state(state, DIBX000_SLOW_ADC_OFF);
+
+ /* ber_rs_len = 3 */
+ dib8000_write_word(state, 285, (dib8000_read_word(state, 285) & ~0x60) | (3 << 5));
+
+ dib8000_set_power_mode(state, DIB8000_POWER_INTERFACE_ONLY);
+
+ dib8000_reset_stats(fe);
+
+ return 0;
+}
+
+static void dib8000_restart_agc(struct dib8000_state *state)
+{
+ // P_restart_iqc & P_restart_agc
+ dib8000_write_word(state, 770, 0x0a00);
+ dib8000_write_word(state, 770, 0x0000);
+}
+
+static int dib8000_update_lna(struct dib8000_state *state)
+{
+ u16 dyn_gain;
+
+ if (state->cfg.update_lna) {
+ // read dyn_gain here (because it is demod-dependent and not tuner)
+ dyn_gain = dib8000_read_word(state, 390);
+
+ if (state->cfg.update_lna(state->fe[0], dyn_gain)) {
+ dib8000_restart_agc(state);
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static int dib8000_set_agc_config(struct dib8000_state *state, u8 band)
+{
+ struct dibx000_agc_config *agc = NULL;
+ int i;
+ u16 reg;
+
+ if (state->current_band == band && state->current_agc != NULL)
+ return 0;
+ state->current_band = band;
+
+ for (i = 0; i < state->cfg.agc_config_count; i++)
+ if (state->cfg.agc[i].band_caps & band) {
+ agc = &state->cfg.agc[i];
+ break;
+ }
+
+ if (agc == NULL) {
+ dprintk("no valid AGC configuration found for band 0x%02x", band);
+ return -EINVAL;
+ }
+
+ state->current_agc = agc;
+
+ /* AGC */
+ dib8000_write_word(state, 76, agc->setup);
+ dib8000_write_word(state, 77, agc->inv_gain);
+ dib8000_write_word(state, 78, agc->time_stabiliz);
+ dib8000_write_word(state, 101, (agc->alpha_level << 12) | agc->thlock);
+
+ // Demod AGC loop configuration
+ dib8000_write_word(state, 102, (agc->alpha_mant << 5) | agc->alpha_exp);
+ dib8000_write_word(state, 103, (agc->beta_mant << 6) | agc->beta_exp);
+
+ dprintk("WBD: ref: %d, sel: %d, active: %d, alpha: %d",
+ state->wbd_ref != 0 ? state->wbd_ref : agc->wbd_ref, agc->wbd_sel, !agc->perform_agc_softsplit, agc->wbd_sel);
+
+ /* AGC continued */
+ if (state->wbd_ref != 0)
+ dib8000_write_word(state, 106, state->wbd_ref);
+ else // use default
+ dib8000_write_word(state, 106, agc->wbd_ref);
+
+ if (state->revision == 0x8090) {
+ reg = dib8000_read_word(state, 922) & (0x3 << 2);
+ dib8000_write_word(state, 922, reg | (agc->wbd_sel << 2));
+ }
+
+ dib8000_write_word(state, 107, (agc->wbd_alpha << 9) | (agc->perform_agc_softsplit << 8));
+ dib8000_write_word(state, 108, agc->agc1_max);
+ dib8000_write_word(state, 109, agc->agc1_min);
+ dib8000_write_word(state, 110, agc->agc2_max);
+ dib8000_write_word(state, 111, agc->agc2_min);
+ dib8000_write_word(state, 112, (agc->agc1_pt1 << 8) | agc->agc1_pt2);
+ dib8000_write_word(state, 113, (agc->agc1_slope1 << 8) | agc->agc1_slope2);
+ dib8000_write_word(state, 114, (agc->agc2_pt1 << 8) | agc->agc2_pt2);
+ dib8000_write_word(state, 115, (agc->agc2_slope1 << 8) | agc->agc2_slope2);
+
+ dib8000_write_word(state, 75, agc->agc1_pt3);
+ if (state->revision != 0x8090)
+ dib8000_write_word(state, 923,
+ (dib8000_read_word(state, 923) & 0xffe3) |
+ (agc->wbd_inv << 4) | (agc->wbd_sel << 2));
+
+ return 0;
+}
+
+static void dib8000_pwm_agc_reset(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ dib8000_set_adc_state(state, DIBX000_ADC_ON);
+ dib8000_set_agc_config(state, (unsigned char)(BAND_OF_FREQUENCY(fe->dtv_property_cache.frequency / 1000)));
+}
+
+static int dib8000_agc_soft_split(struct dib8000_state *state)
+{
+ u16 agc, split_offset;
+
+ if (!state->current_agc || !state->current_agc->perform_agc_softsplit || state->current_agc->split.max == 0)
+ return 0;
+
+ // n_agc_global
+ agc = dib8000_read_word(state, 390);
+
+ if (agc > state->current_agc->split.min_thres)
+ split_offset = state->current_agc->split.min;
+ else if (agc < state->current_agc->split.max_thres)
+ split_offset = state->current_agc->split.max;
+ else
+ split_offset = state->current_agc->split.max *
+ (agc - state->current_agc->split.min_thres) /
+ (state->current_agc->split.max_thres - state->current_agc->split.min_thres);
+
+ dprintk("AGC split_offset: %d", split_offset);
+
+ // P_agc_force_split and P_agc_split_offset
+ dib8000_write_word(state, 107, (dib8000_read_word(state, 107) & 0xff00) | split_offset);
+ return 5000;
+}
+
+static int dib8000_agc_startup(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ enum frontend_tune_state *tune_state = &state->tune_state;
+ int ret = 0;
+ u16 reg;
+ u32 upd_demod_gain_period = 0x8000;
+
+ switch (*tune_state) {
+ case CT_AGC_START:
+ // set power-up level: interf+analog+AGC
+
+ if (state->revision != 0x8090)
+ dib8000_set_adc_state(state, DIBX000_ADC_ON);
+ else {
+ dib8000_set_power_mode(state, DIB8000_POWER_ALL);
+
+ reg = dib8000_read_word(state, 1947)&0xff00;
+ dib8000_write_word(state, 1946,
+ upd_demod_gain_period & 0xFFFF);
+ /* bit 14 = enDemodGain */
+ dib8000_write_word(state, 1947, reg | (1<<14) |
+ ((upd_demod_gain_period >> 16) & 0xFF));
+
+ /* enable adc i & q */
+ reg = dib8000_read_word(state, 1920);
+ dib8000_write_word(state, 1920, (reg | 0x3) &
+ (~(1 << 7)));
+ }
+
+ if (dib8000_set_agc_config(state, (unsigned char)(BAND_OF_FREQUENCY(fe->dtv_property_cache.frequency / 1000))) != 0) {
+ *tune_state = CT_AGC_STOP;
+ state->status = FE_STATUS_TUNE_FAILED;
+ break;
+ }
+
+ ret = 70;
+ *tune_state = CT_AGC_STEP_0;
+ break;
+
+ case CT_AGC_STEP_0:
+ //AGC initialization
+ if (state->cfg.agc_control)
+ state->cfg.agc_control(fe, 1);
+
+ dib8000_restart_agc(state);
+
+ // wait AGC rough lock time
+ ret = 50;
+ *tune_state = CT_AGC_STEP_1;
+ break;
+
+ case CT_AGC_STEP_1:
+ // wait AGC accurate lock time
+ ret = 70;
+
+ if (dib8000_update_lna(state))
+ // wait only AGC rough lock time
+ ret = 50;
+ else
+ *tune_state = CT_AGC_STEP_2;
+ break;
+
+ case CT_AGC_STEP_2:
+ dib8000_agc_soft_split(state);
+
+ if (state->cfg.agc_control)
+ state->cfg.agc_control(fe, 0);
+
+ *tune_state = CT_AGC_STOP;
+ break;
+ default:
+ ret = dib8000_agc_soft_split(state);
+ break;
+ }
+ return ret;
+
+}
+
+static void dib8096p_host_bus_drive(struct dib8000_state *state, u8 drive)
+{
+ u16 reg;
+
+ drive &= 0x7;
+
+ /* drive host bus 2, 3, 4 */
+ reg = dib8000_read_word(state, 1798) &
+ ~(0x7 | (0x7 << 6) | (0x7 << 12));
+ reg |= (drive<<12) | (drive<<6) | drive;
+ dib8000_write_word(state, 1798, reg);
+
+ /* drive host bus 5,6 */
+ reg = dib8000_read_word(state, 1799) & ~((0x7 << 2) | (0x7 << 8));
+ reg |= (drive<<8) | (drive<<2);
+ dib8000_write_word(state, 1799, reg);
+
+ /* drive host bus 7, 8, 9 */
+ reg = dib8000_read_word(state, 1800) &
+ ~(0x7 | (0x7 << 6) | (0x7 << 12));
+ reg |= (drive<<12) | (drive<<6) | drive;
+ dib8000_write_word(state, 1800, reg);
+
+ /* drive host bus 10, 11 */
+ reg = dib8000_read_word(state, 1801) & ~((0x7 << 2) | (0x7 << 8));
+ reg |= (drive<<8) | (drive<<2);
+ dib8000_write_word(state, 1801, reg);
+
+ /* drive host bus 12, 13, 14 */
+ reg = dib8000_read_word(state, 1802) &
+ ~(0x7 | (0x7 << 6) | (0x7 << 12));
+ reg |= (drive<<12) | (drive<<6) | drive;
+ dib8000_write_word(state, 1802, reg);
+}
+
+static u32 dib8096p_calcSyncFreq(u32 P_Kin, u32 P_Kout,
+ u32 insertExtSynchro, u32 syncSize)
+{
+ u32 quantif = 3;
+ u32 nom = (insertExtSynchro * P_Kin+syncSize);
+ u32 denom = P_Kout;
+ u32 syncFreq = ((nom << quantif) / denom);
+
+ if ((syncFreq & ((1 << quantif) - 1)) != 0)
+ syncFreq = (syncFreq >> quantif) + 1;
+ else
+ syncFreq = (syncFreq >> quantif);
+
+ if (syncFreq != 0)
+ syncFreq = syncFreq - 1;
+
+ return syncFreq;
+}
+
+static void dib8096p_cfg_DibTx(struct dib8000_state *state, u32 P_Kin,
+ u32 P_Kout, u32 insertExtSynchro, u32 synchroMode,
+ u32 syncWord, u32 syncSize)
+{
+ dprintk("Configure DibStream Tx");
+
+ dib8000_write_word(state, 1615, 1);
+ dib8000_write_word(state, 1603, P_Kin);
+ dib8000_write_word(state, 1605, P_Kout);
+ dib8000_write_word(state, 1606, insertExtSynchro);
+ dib8000_write_word(state, 1608, synchroMode);
+ dib8000_write_word(state, 1609, (syncWord >> 16) & 0xffff);
+ dib8000_write_word(state, 1610, syncWord & 0xffff);
+ dib8000_write_word(state, 1612, syncSize);
+ dib8000_write_word(state, 1615, 0);
+}
+
+static void dib8096p_cfg_DibRx(struct dib8000_state *state, u32 P_Kin,
+ u32 P_Kout, u32 synchroMode, u32 insertExtSynchro,
+ u32 syncWord, u32 syncSize, u32 dataOutRate)
+{
+ u32 syncFreq;
+
+ dprintk("Configure DibStream Rx synchroMode = %d", synchroMode);
+
+ if ((P_Kin != 0) && (P_Kout != 0)) {
+ syncFreq = dib8096p_calcSyncFreq(P_Kin, P_Kout,
+ insertExtSynchro, syncSize);
+ dib8000_write_word(state, 1542, syncFreq);
+ }
+
+ dib8000_write_word(state, 1554, 1);
+ dib8000_write_word(state, 1536, P_Kin);
+ dib8000_write_word(state, 1537, P_Kout);
+ dib8000_write_word(state, 1539, synchroMode);
+ dib8000_write_word(state, 1540, (syncWord >> 16) & 0xffff);
+ dib8000_write_word(state, 1541, syncWord & 0xffff);
+ dib8000_write_word(state, 1543, syncSize);
+ dib8000_write_word(state, 1544, dataOutRate);
+ dib8000_write_word(state, 1554, 0);
+}
+
+static void dib8096p_enMpegMux(struct dib8000_state *state, int onoff)
+{
+ u16 reg_1287;
+
+ reg_1287 = dib8000_read_word(state, 1287);
+
+ switch (onoff) {
+ case 1:
+ reg_1287 &= ~(1 << 8);
+ break;
+ case 0:
+ reg_1287 |= (1 << 8);
+ break;
+ }
+
+ dib8000_write_word(state, 1287, reg_1287);
+}
+
+static void dib8096p_configMpegMux(struct dib8000_state *state,
+ u16 pulseWidth, u16 enSerialMode, u16 enSerialClkDiv2)
+{
+ u16 reg_1287;
+
+ dprintk("Enable Mpeg mux");
+
+ dib8096p_enMpegMux(state, 0);
+
+ /* If the input mode is MPEG do not divide the serial clock */
+ if ((enSerialMode == 1) && (state->input_mode_mpeg == 1))
+ enSerialClkDiv2 = 0;
+
+ reg_1287 = ((pulseWidth & 0x1f) << 3) |
+ ((enSerialMode & 0x1) << 2) | (enSerialClkDiv2 & 0x1);
+ dib8000_write_word(state, 1287, reg_1287);
+
+ dib8096p_enMpegMux(state, 1);
+}
+
+static void dib8096p_setDibTxMux(struct dib8000_state *state, int mode)
+{
+ u16 reg_1288 = dib8000_read_word(state, 1288) & ~(0x7 << 7);
+
+ switch (mode) {
+ case MPEG_ON_DIBTX:
+ dprintk("SET MPEG ON DIBSTREAM TX");
+ dib8096p_cfg_DibTx(state, 8, 5, 0, 0, 0, 0);
+ reg_1288 |= (1 << 9); break;
+ case DIV_ON_DIBTX:
+ dprintk("SET DIV_OUT ON DIBSTREAM TX");
+ dib8096p_cfg_DibTx(state, 5, 5, 0, 0, 0, 0);
+ reg_1288 |= (1 << 8); break;
+ case ADC_ON_DIBTX:
+ dprintk("SET ADC_OUT ON DIBSTREAM TX");
+ dib8096p_cfg_DibTx(state, 20, 5, 10, 0, 0, 0);
+ reg_1288 |= (1 << 7); break;
+ default:
+ break;
+ }
+ dib8000_write_word(state, 1288, reg_1288);
+}
+
+static void dib8096p_setHostBusMux(struct dib8000_state *state, int mode)
+{
+ u16 reg_1288 = dib8000_read_word(state, 1288) & ~(0x7 << 4);
+
+ switch (mode) {
+ case DEMOUT_ON_HOSTBUS:
+ dprintk("SET DEM OUT OLD INTERF ON HOST BUS");
+ dib8096p_enMpegMux(state, 0);
+ reg_1288 |= (1 << 6);
+ break;
+ case DIBTX_ON_HOSTBUS:
+ dprintk("SET DIBSTREAM TX ON HOST BUS");
+ dib8096p_enMpegMux(state, 0);
+ reg_1288 |= (1 << 5);
+ break;
+ case MPEG_ON_HOSTBUS:
+ dprintk("SET MPEG MUX ON HOST BUS");
+ reg_1288 |= (1 << 4);
+ break;
+ default:
+ break;
+ }
+ dib8000_write_word(state, 1288, reg_1288);
+}
+
+static int dib8096p_set_diversity_in(struct dvb_frontend *fe, int onoff)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u16 reg_1287;
+
+ switch (onoff) {
+ case 0: /* only use the internal way - not the diversity input */
+ dprintk("%s mode OFF : by default Enable Mpeg INPUT",
+ __func__);
+ /* outputRate = 8 */
+ dib8096p_cfg_DibRx(state, 8, 5, 0, 0, 0, 8, 0);
+
+ /* Do not divide the serial clock of MPEG MUX in
+ SERIAL MODE in case input mode MPEG is used */
+ reg_1287 = dib8000_read_word(state, 1287);
+ /* enSerialClkDiv2 == 1 ? */
+ if ((reg_1287 & 0x1) == 1) {
+ /* force enSerialClkDiv2 = 0 */
+ reg_1287 &= ~0x1;
+ dib8000_write_word(state, 1287, reg_1287);
+ }
+ state->input_mode_mpeg = 1;
+ break;
+ case 1: /* both ways */
+ case 2: /* only the diversity input */
+ dprintk("%s ON : Enable diversity INPUT", __func__);
+ dib8096p_cfg_DibRx(state, 5, 5, 0, 0, 0, 0, 0);
+ state->input_mode_mpeg = 0;
+ break;
+ }
+
+ dib8000_set_diversity_in(state->fe[0], onoff);
+ return 0;
+}
+
+static int dib8096p_set_output_mode(struct dvb_frontend *fe, int mode)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u16 outreg, smo_mode, fifo_threshold;
+ u8 prefer_mpeg_mux_use = 1;
+ int ret = 0;
+
+ state->output_mode = mode;
+ dib8096p_host_bus_drive(state, 1);
+
+ fifo_threshold = 1792;
+ smo_mode = (dib8000_read_word(state, 299) & 0x0050) | (1 << 1);
+ outreg = dib8000_read_word(state, 1286) &
+ ~((1 << 10) | (0x7 << 6) | (1 << 1));
+
+ switch (mode) {
+ case OUTMODE_HIGH_Z:
+ outreg = 0;
+ break;
+
+ case OUTMODE_MPEG2_SERIAL:
+ if (prefer_mpeg_mux_use) {
+ dprintk("dib8096P setting output mode TS_SERIAL using Mpeg Mux");
+ dib8096p_configMpegMux(state, 3, 1, 1);
+ dib8096p_setHostBusMux(state, MPEG_ON_HOSTBUS);
+ } else {/* Use Smooth block */
+ dprintk("dib8096P setting output mode TS_SERIAL using Smooth bloc");
+ dib8096p_setHostBusMux(state,
+ DEMOUT_ON_HOSTBUS);
+ outreg |= (2 << 6) | (0 << 1);
+ }
+ break;
+
+ case OUTMODE_MPEG2_PAR_GATED_CLK:
+ if (prefer_mpeg_mux_use) {
+ dprintk("dib8096P setting output mode TS_PARALLEL_GATED using Mpeg Mux");
+ dib8096p_configMpegMux(state, 2, 0, 0);
+ dib8096p_setHostBusMux(state, MPEG_ON_HOSTBUS);
+ } else { /* Use Smooth block */
+ dprintk("dib8096P setting output mode TS_PARALLEL_GATED using Smooth block");
+ dib8096p_setHostBusMux(state,
+ DEMOUT_ON_HOSTBUS);
+ outreg |= (0 << 6);
+ }
+ break;
+
+ case OUTMODE_MPEG2_PAR_CONT_CLK: /* Using Smooth block only */
+ dprintk("dib8096P setting output mode TS_PARALLEL_CONT using Smooth block");
+ dib8096p_setHostBusMux(state, DEMOUT_ON_HOSTBUS);
+ outreg |= (1 << 6);
+ break;
+
+ case OUTMODE_MPEG2_FIFO:
+ /* Using Smooth block because not supported
+ by new Mpeg Mux bloc */
+ dprintk("dib8096P setting output mode TS_FIFO using Smooth block");
+ dib8096p_setHostBusMux(state, DEMOUT_ON_HOSTBUS);
+ outreg |= (5 << 6);
+ smo_mode |= (3 << 1);
+ fifo_threshold = 512;
+ break;
+
+ case OUTMODE_DIVERSITY:
+ dprintk("dib8096P setting output mode MODE_DIVERSITY");
+ dib8096p_setDibTxMux(state, DIV_ON_DIBTX);
+ dib8096p_setHostBusMux(state, DIBTX_ON_HOSTBUS);
+ break;
+
+ case OUTMODE_ANALOG_ADC:
+ dprintk("dib8096P setting output mode MODE_ANALOG_ADC");
+ dib8096p_setDibTxMux(state, ADC_ON_DIBTX);
+ dib8096p_setHostBusMux(state, DIBTX_ON_HOSTBUS);
+ break;
+ }
+
+ if (mode != OUTMODE_HIGH_Z)
+ outreg |= (1<<10);
+
+ dprintk("output_mpeg2_in_188_bytes = %d",
+ state->cfg.output_mpeg2_in_188_bytes);
+ if (state->cfg.output_mpeg2_in_188_bytes)
+ smo_mode |= (1 << 5);
+
+ ret |= dib8000_write_word(state, 299, smo_mode);
+ /* synchronous fread */
+ ret |= dib8000_write_word(state, 299 + 1, fifo_threshold);
+ ret |= dib8000_write_word(state, 1286, outreg);
+
+ return ret;
+}
+
+static int map_addr_to_serpar_number(struct i2c_msg *msg)
+{
+ if (msg->buf[0] <= 15)
+ msg->buf[0] -= 1;
+ else if (msg->buf[0] == 17)
+ msg->buf[0] = 15;
+ else if (msg->buf[0] == 16)
+ msg->buf[0] = 17;
+ else if (msg->buf[0] == 19)
+ msg->buf[0] = 16;
+ else if (msg->buf[0] >= 21 && msg->buf[0] <= 25)
+ msg->buf[0] -= 3;
+ else if (msg->buf[0] == 28)
+ msg->buf[0] = 23;
+ else if (msg->buf[0] == 99)
+ msg->buf[0] = 99;
+ else
+ return -EINVAL;
+ return 0;
+}
+
+static int dib8096p_tuner_write_serpar(struct i2c_adapter *i2c_adap,
+ struct i2c_msg msg[], int num)
+{
+ struct dib8000_state *state = i2c_get_adapdata(i2c_adap);
+ u8 n_overflow = 1;
+ u16 i = 1000;
+ u16 serpar_num = msg[0].buf[0];
+
+ while (n_overflow == 1 && i) {
+ n_overflow = (dib8000_read_word(state, 1984) >> 1) & 0x1;
+ i--;
+ if (i == 0)
+ dprintk("Tuner ITF: write busy (overflow)");
+ }
+ dib8000_write_word(state, 1985, (1 << 6) | (serpar_num & 0x3f));
+ dib8000_write_word(state, 1986, (msg[0].buf[1] << 8) | msg[0].buf[2]);
+
+ return num;
+}
+
+static int dib8096p_tuner_read_serpar(struct i2c_adapter *i2c_adap,
+ struct i2c_msg msg[], int num)
+{
+ struct dib8000_state *state = i2c_get_adapdata(i2c_adap);
+ u8 n_overflow = 1, n_empty = 1;
+ u16 i = 1000;
+ u16 serpar_num = msg[0].buf[0];
+ u16 read_word;
+
+ while (n_overflow == 1 && i) {
+ n_overflow = (dib8000_read_word(state, 1984) >> 1) & 0x1;
+ i--;
+ if (i == 0)
+ dprintk("TunerITF: read busy (overflow)");
+ }
+ dib8000_write_word(state, 1985, (0<<6) | (serpar_num&0x3f));
+
+ i = 1000;
+ while (n_empty == 1 && i) {
+ n_empty = dib8000_read_word(state, 1984)&0x1;
+ i--;
+ if (i == 0)
+ dprintk("TunerITF: read busy (empty)");
+ }
+
+ read_word = dib8000_read_word(state, 1987);
+ msg[1].buf[0] = (read_word >> 8) & 0xff;
+ msg[1].buf[1] = (read_word) & 0xff;
+
+ return num;
+}
+
+static int dib8096p_tuner_rw_serpar(struct i2c_adapter *i2c_adap,
+ struct i2c_msg msg[], int num)
+{
+ if (map_addr_to_serpar_number(&msg[0]) == 0) {
+ if (num == 1) /* write */
+ return dib8096p_tuner_write_serpar(i2c_adap, msg, 1);
+ else /* read */
+ return dib8096p_tuner_read_serpar(i2c_adap, msg, 2);
+ }
+ return num;
+}
+
+static int dib8096p_rw_on_apb(struct i2c_adapter *i2c_adap,
+ struct i2c_msg msg[], int num, u16 apb_address)
+{
+ struct dib8000_state *state = i2c_get_adapdata(i2c_adap);
+ u16 word;
+
+ if (num == 1) { /* write */
+ dib8000_write_word(state, apb_address,
+ ((msg[0].buf[1] << 8) | (msg[0].buf[2])));
+ } else {
+ word = dib8000_read_word(state, apb_address);
+ msg[1].buf[0] = (word >> 8) & 0xff;
+ msg[1].buf[1] = (word) & 0xff;
+ }
+ return num;
+}
+
+static int dib8096p_tuner_xfer(struct i2c_adapter *i2c_adap,
+ struct i2c_msg msg[], int num)
+{
+ struct dib8000_state *state = i2c_get_adapdata(i2c_adap);
+ u16 apb_address = 0, word;
+ int i = 0;
+
+ switch (msg[0].buf[0]) {
+ case 0x12:
+ apb_address = 1920;
+ break;
+ case 0x14:
+ apb_address = 1921;
+ break;
+ case 0x24:
+ apb_address = 1922;
+ break;
+ case 0x1a:
+ apb_address = 1923;
+ break;
+ case 0x22:
+ apb_address = 1924;
+ break;
+ case 0x33:
+ apb_address = 1926;
+ break;
+ case 0x34:
+ apb_address = 1927;
+ break;
+ case 0x35:
+ apb_address = 1928;
+ break;
+ case 0x36:
+ apb_address = 1929;
+ break;
+ case 0x37:
+ apb_address = 1930;
+ break;
+ case 0x38:
+ apb_address = 1931;
+ break;
+ case 0x39:
+ apb_address = 1932;
+ break;
+ case 0x2a:
+ apb_address = 1935;
+ break;
+ case 0x2b:
+ apb_address = 1936;
+ break;
+ case 0x2c:
+ apb_address = 1937;
+ break;
+ case 0x2d:
+ apb_address = 1938;
+ break;
+ case 0x2e:
+ apb_address = 1939;
+ break;
+ case 0x2f:
+ apb_address = 1940;
+ break;
+ case 0x30:
+ apb_address = 1941;
+ break;
+ case 0x31:
+ apb_address = 1942;
+ break;
+ case 0x32:
+ apb_address = 1943;
+ break;
+ case 0x3e:
+ apb_address = 1944;
+ break;
+ case 0x3f:
+ apb_address = 1945;
+ break;
+ case 0x40:
+ apb_address = 1948;
+ break;
+ case 0x25:
+ apb_address = 936;
+ break;
+ case 0x26:
+ apb_address = 937;
+ break;
+ case 0x27:
+ apb_address = 938;
+ break;
+ case 0x28:
+ apb_address = 939;
+ break;
+ case 0x1d:
+ /* get sad sel request */
+ i = ((dib8000_read_word(state, 921) >> 12)&0x3);
+ word = dib8000_read_word(state, 924+i);
+ msg[1].buf[0] = (word >> 8) & 0xff;
+ msg[1].buf[1] = (word) & 0xff;
+ return num;
+ case 0x1f:
+ if (num == 1) { /* write */
+ word = (u16) ((msg[0].buf[1] << 8) |
+ msg[0].buf[2]);
+ /* in the VGAMODE Sel are located on bit 0/1 */
+ word &= 0x3;
+ word = (dib8000_read_word(state, 921) &
+ ~(3<<12)) | (word<<12);
+ /* Set the proper input */
+ dib8000_write_word(state, 921, word);
+ return num;
+ }
+ }
+
+ if (apb_address != 0) /* R/W acces via APB */
+ return dib8096p_rw_on_apb(i2c_adap, msg, num, apb_address);
+ else /* R/W access via SERPAR */
+ return dib8096p_tuner_rw_serpar(i2c_adap, msg, num);
+
+ return 0;
+}
+
+static u32 dib8096p_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm dib8096p_tuner_xfer_algo = {
+ .master_xfer = dib8096p_tuner_xfer,
+ .functionality = dib8096p_i2c_func,
+};
+
+static struct i2c_adapter *dib8096p_get_i2c_tuner(struct dvb_frontend *fe)
+{
+ struct dib8000_state *st = fe->demodulator_priv;
+ return &st->dib8096p_tuner_adap;
+}
+
+static int dib8096p_tuner_sleep(struct dvb_frontend *fe, int onoff)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u16 en_cur_state;
+
+ dprintk("sleep dib8096p: %d", onoff);
+
+ en_cur_state = dib8000_read_word(state, 1922);
+
+ /* LNAs and MIX are ON and therefore it is a valid configuration */
+ if (en_cur_state > 0xff)
+ state->tuner_enable = en_cur_state ;
+
+ if (onoff)
+ en_cur_state &= 0x00ff;
+ else {
+ if (state->tuner_enable != 0)
+ en_cur_state = state->tuner_enable;
+ }
+
+ dib8000_write_word(state, 1922, en_cur_state);
+
+ return 0;
+}
+
+static const s32 lut_1000ln_mant[] =
+{
+ 908, 7003, 7090, 7170, 7244, 7313, 7377, 7438, 7495, 7549, 7600
+};
+
+static s32 dib8000_get_adc_power(struct dvb_frontend *fe, u8 mode)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u32 ix = 0, tmp_val = 0, exp = 0, mant = 0;
+ s32 val;
+
+ val = dib8000_read32(state, 384);
+ if (mode) {
+ tmp_val = val;
+ while (tmp_val >>= 1)
+ exp++;
+ mant = (val * 1000 / (1<<exp));
+ ix = (u8)((mant-1000)/100); /* index of the LUT */
+ val = (lut_1000ln_mant[ix] + 693*(exp-20) - 6908);
+ val = (val*256)/1000;
+ }
+ return val;
+}
+
+static int dib8090p_get_dc_power(struct dvb_frontend *fe, u8 IQ)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ int val = 0;
+
+ switch (IQ) {
+ case 1:
+ val = dib8000_read_word(state, 403);
+ break;
+ case 0:
+ val = dib8000_read_word(state, 404);
+ break;
+ }
+ if (val & 0x200)
+ val -= 1024;
+
+ return val;
+}
+
+static void dib8000_update_timf(struct dib8000_state *state)
+{
+ u32 timf = state->timf = dib8000_read32(state, 435);
+
+ dib8000_write_word(state, 29, (u16) (timf >> 16));
+ dib8000_write_word(state, 30, (u16) (timf & 0xffff));
+ dprintk("Updated timing frequency: %d (default: %d)", state->timf, state->timf_default);
+}
+
+static u32 dib8000_ctrl_timf(struct dvb_frontend *fe, uint8_t op, uint32_t timf)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+
+ switch (op) {
+ case DEMOD_TIMF_SET:
+ state->timf = timf;
+ break;
+ case DEMOD_TIMF_UPDATE:
+ dib8000_update_timf(state);
+ break;
+ case DEMOD_TIMF_GET:
+ break;
+ }
+ dib8000_set_bandwidth(state->fe[0], 6000);
+
+ return state->timf;
+}
+
+static const u16 adc_target_16dB[11] = {
+ 7250, 7238, 7264, 7309, 7338, 7382, 7427, 7456, 7500, 7544, 7574
+};
+
+static const u8 permu_seg[] = { 6, 5, 7, 4, 8, 3, 9, 2, 10, 1, 11, 0, 12 };
+
+static u16 dib8000_set_layer(struct dib8000_state *state, u8 layer_index, u16 max_constellation)
+{
+ u8 cr, constellation, time_intlv;
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+
+ switch (c->layer[layer_index].modulation) {
+ case DQPSK:
+ constellation = 0;
+ break;
+ case QPSK:
+ constellation = 1;
+ break;
+ case QAM_16:
+ constellation = 2;
+ break;
+ case QAM_64:
+ default:
+ constellation = 3;
+ break;
+ }
+
+ switch (c->layer[layer_index].fec) {
+ case FEC_1_2:
+ cr = 1;
+ break;
+ case FEC_2_3:
+ cr = 2;
+ break;
+ case FEC_3_4:
+ cr = 3;
+ break;
+ case FEC_5_6:
+ cr = 5;
+ break;
+ case FEC_7_8:
+ default:
+ cr = 7;
+ break;
+ }
+
+ time_intlv = fls(c->layer[layer_index].interleaving);
+ if (time_intlv > 3 && !(time_intlv == 4 && c->isdbt_sb_mode == 1))
+ time_intlv = 0;
+
+ dib8000_write_word(state, 2 + layer_index, (constellation << 10) | ((c->layer[layer_index].segment_count & 0xf) << 6) | (cr << 3) | time_intlv);
+ if (c->layer[layer_index].segment_count > 0) {
+ switch (max_constellation) {
+ case DQPSK:
+ case QPSK:
+ if (c->layer[layer_index].modulation == QAM_16 || c->layer[layer_index].modulation == QAM_64)
+ max_constellation = c->layer[layer_index].modulation;
+ break;
+ case QAM_16:
+ if (c->layer[layer_index].modulation == QAM_64)
+ max_constellation = c->layer[layer_index].modulation;
+ break;
+ }
+ }
+
+ return max_constellation;
+}
+
+static const u16 adp_Q64[4] = {0x0148, 0xfff0, 0x00a4, 0xfff8}; /* P_adp_regul_cnt 0.04, P_adp_noise_cnt -0.002, P_adp_regul_ext 0.02, P_adp_noise_ext -0.001 */
+static const u16 adp_Q16[4] = {0x023d, 0xffdf, 0x00a4, 0xfff0}; /* P_adp_regul_cnt 0.07, P_adp_noise_cnt -0.004, P_adp_regul_ext 0.02, P_adp_noise_ext -0.002 */
+static const u16 adp_Qdefault[4] = {0x099a, 0xffae, 0x0333, 0xfff8}; /* P_adp_regul_cnt 0.3, P_adp_noise_cnt -0.01, P_adp_regul_ext 0.1, P_adp_noise_ext -0.002 */
+static u16 dib8000_adp_fine_tune(struct dib8000_state *state, u16 max_constellation)
+{
+ u16 i, ana_gain = 0;
+ const u16 *adp;
+
+ /* channel estimation fine configuration */
+ switch (max_constellation) {
+ case QAM_64:
+ ana_gain = 0x7;
+ adp = &adp_Q64[0];
+ break;
+ case QAM_16:
+ ana_gain = 0x7;
+ adp = &adp_Q16[0];
+ break;
+ default:
+ ana_gain = 0;
+ adp = &adp_Qdefault[0];
+ break;
+ }
+
+ for (i = 0; i < 4; i++)
+ dib8000_write_word(state, 215 + i, adp[i]);
+
+ return ana_gain;
+}
+
+static void dib8000_update_ana_gain(struct dib8000_state *state, u16 ana_gain)
+{
+ u16 i;
+
+ dib8000_write_word(state, 116, ana_gain);
+
+ /* update ADC target depending on ana_gain */
+ if (ana_gain) { /* set -16dB ADC target for ana_gain=-1 */
+ for (i = 0; i < 10; i++)
+ dib8000_write_word(state, 80 + i, adc_target_16dB[i]);
+ } else { /* set -22dB ADC target for ana_gain=0 */
+ for (i = 0; i < 10; i++)
+ dib8000_write_word(state, 80 + i, adc_target_16dB[i] - 355);
+ }
+}
+
+static void dib8000_load_ana_fe_coefs(struct dib8000_state *state, const s16 *ana_fe)
+{
+ u16 mode = 0;
+
+ if (state->isdbt_cfg_loaded == 0)
+ for (mode = 0; mode < 24; mode++)
+ dib8000_write_word(state, 117 + mode, ana_fe[mode]);
+}
+
+static const u16 lut_prbs_2k[14] = {
+ 0, 0x423, 0x009, 0x5C7, 0x7A6, 0x3D8, 0x527, 0x7FF, 0x79B, 0x3D6, 0x3A2, 0x53B, 0x2F4, 0x213
+};
+static const u16 lut_prbs_4k[14] = {
+ 0, 0x208, 0x0C3, 0x7B9, 0x423, 0x5C7, 0x3D8, 0x7FF, 0x3D6, 0x53B, 0x213, 0x029, 0x0D0, 0x48E
+};
+static const u16 lut_prbs_8k[14] = {
+ 0, 0x740, 0x069, 0x7DD, 0x208, 0x7B9, 0x5C7, 0x7FF, 0x53B, 0x029, 0x48E, 0x4C4, 0x367, 0x684
+};
+
+static u16 dib8000_get_init_prbs(struct dib8000_state *state, u16 subchannel)
+{
+ int sub_channel_prbs_group = 0;
+
+ sub_channel_prbs_group = (subchannel / 3) + 1;
+ dprintk("sub_channel_prbs_group = %d , subchannel =%d prbs = 0x%04x", sub_channel_prbs_group, subchannel, lut_prbs_8k[sub_channel_prbs_group]);
+
+ switch (state->fe[0]->dtv_property_cache.transmission_mode) {
+ case TRANSMISSION_MODE_2K:
+ return lut_prbs_2k[sub_channel_prbs_group];
+ case TRANSMISSION_MODE_4K:
+ return lut_prbs_4k[sub_channel_prbs_group];
+ default:
+ case TRANSMISSION_MODE_8K:
+ return lut_prbs_8k[sub_channel_prbs_group];
+ }
+}
+
+static void dib8000_set_13seg_channel(struct dib8000_state *state)
+{
+ u16 i;
+ u16 coff_pow = 0x2800;
+
+ state->seg_mask = 0x1fff; /* All 13 segments enabled */
+
+ /* ---- COFF ---- Carloff, the most robust --- */
+ if (state->isdbt_cfg_loaded == 0) { /* if not Sound Broadcasting mode : put default values for 13 segments */
+ dib8000_write_word(state, 180, (16 << 6) | 9);
+ dib8000_write_word(state, 187, (4 << 12) | (8 << 5) | 0x2);
+ coff_pow = 0x2800;
+ for (i = 0; i < 6; i++)
+ dib8000_write_word(state, 181+i, coff_pow);
+
+ /* P_ctrl_corm_thres4pre_freq_inh=1, P_ctrl_pre_freq_mode_sat=1 */
+ /* P_ctrl_pre_freq_mode_sat=1, P_ctrl_pre_freq_inh=0, P_ctrl_pre_freq_step = 3, P_pre_freq_win_len=1 */
+ dib8000_write_word(state, 338, (1 << 12) | (1 << 10) | (0 << 9) | (3 << 5) | 1);
+
+ /* P_ctrl_pre_freq_win_len=8, P_ctrl_pre_freq_thres_lockin=6 */
+ dib8000_write_word(state, 340, (8 << 6) | (6 << 0));
+ /* P_ctrl_pre_freq_thres_lockout=4, P_small_use_tmcc/ac/cp=1 */
+ dib8000_write_word(state, 341, (4 << 3) | (1 << 2) | (1 << 1) | (1 << 0));
+
+ dib8000_write_word(state, 228, 0); /* default value */
+ dib8000_write_word(state, 265, 31); /* default value */
+ dib8000_write_word(state, 205, 0x200f); /* init value */
+ }
+
+ /*
+ * make the cpil_coff_lock more robust but slower p_coff_winlen
+ * 6bits; p_coff_thres_lock 6bits (for coff lock if needed)
+ */
+
+ if (state->cfg.pll->ifreq == 0)
+ dib8000_write_word(state, 266, ~state->seg_mask | state->seg_diff_mask | 0x40); /* P_equal_noise_seg_inh */
+
+ dib8000_load_ana_fe_coefs(state, ana_fe_coeff_13seg);
+}
+
+static void dib8000_set_subchannel_prbs(struct dib8000_state *state, u16 init_prbs)
+{
+ u16 reg_1;
+
+ reg_1 = dib8000_read_word(state, 1);
+ dib8000_write_word(state, 1, (init_prbs << 2) | (reg_1 & 0x3)); /* ADDR 1 */
+}
+
+static void dib8000_small_fine_tune(struct dib8000_state *state)
+{
+ u16 i;
+ const s16 *ncoeff;
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+
+ dib8000_write_word(state, 352, state->seg_diff_mask);
+ dib8000_write_word(state, 353, state->seg_mask);
+
+ /* P_small_coef_ext_enable=ISDB-Tsb, P_small_narrow_band=ISDB-Tsb, P_small_last_seg=13, P_small_offset_num_car=5 */
+ dib8000_write_word(state, 351, (c->isdbt_sb_mode << 9) | (c->isdbt_sb_mode << 8) | (13 << 4) | 5);
+
+ if (c->isdbt_sb_mode) {
+ /* ---- SMALL ---- */
+ switch (c->transmission_mode) {
+ case TRANSMISSION_MODE_2K:
+ if (c->isdbt_partial_reception == 0) { /* 1-seg */
+ if (c->layer[0].modulation == DQPSK) /* DQPSK */
+ ncoeff = coeff_2k_sb_1seg_dqpsk;
+ else /* QPSK or QAM */
+ ncoeff = coeff_2k_sb_1seg;
+ } else { /* 3-segments */
+ if (c->layer[0].modulation == DQPSK) { /* DQPSK on central segment */
+ if (c->layer[1].modulation == DQPSK) /* DQPSK on external segments */
+ ncoeff = coeff_2k_sb_3seg_0dqpsk_1dqpsk;
+ else /* QPSK or QAM on external segments */
+ ncoeff = coeff_2k_sb_3seg_0dqpsk;
+ } else { /* QPSK or QAM on central segment */
+ if (c->layer[1].modulation == DQPSK) /* DQPSK on external segments */
+ ncoeff = coeff_2k_sb_3seg_1dqpsk;
+ else /* QPSK or QAM on external segments */
+ ncoeff = coeff_2k_sb_3seg;
+ }
+ }
+ break;
+ case TRANSMISSION_MODE_4K:
+ if (c->isdbt_partial_reception == 0) { /* 1-seg */
+ if (c->layer[0].modulation == DQPSK) /* DQPSK */
+ ncoeff = coeff_4k_sb_1seg_dqpsk;
+ else /* QPSK or QAM */
+ ncoeff = coeff_4k_sb_1seg;
+ } else { /* 3-segments */
+ if (c->layer[0].modulation == DQPSK) { /* DQPSK on central segment */
+ if (c->layer[1].modulation == DQPSK) /* DQPSK on external segments */
+ ncoeff = coeff_4k_sb_3seg_0dqpsk_1dqpsk;
+ else /* QPSK or QAM on external segments */
+ ncoeff = coeff_4k_sb_3seg_0dqpsk;
+ } else { /* QPSK or QAM on central segment */
+ if (c->layer[1].modulation == DQPSK) /* DQPSK on external segments */
+ ncoeff = coeff_4k_sb_3seg_1dqpsk;
+ else /* QPSK or QAM on external segments */
+ ncoeff = coeff_4k_sb_3seg;
+ }
+ }
+ break;
+ case TRANSMISSION_MODE_AUTO:
+ case TRANSMISSION_MODE_8K:
+ default:
+ if (c->isdbt_partial_reception == 0) { /* 1-seg */
+ if (c->layer[0].modulation == DQPSK) /* DQPSK */
+ ncoeff = coeff_8k_sb_1seg_dqpsk;
+ else /* QPSK or QAM */
+ ncoeff = coeff_8k_sb_1seg;
+ } else { /* 3-segments */
+ if (c->layer[0].modulation == DQPSK) { /* DQPSK on central segment */
+ if (c->layer[1].modulation == DQPSK) /* DQPSK on external segments */
+ ncoeff = coeff_8k_sb_3seg_0dqpsk_1dqpsk;
+ else /* QPSK or QAM on external segments */
+ ncoeff = coeff_8k_sb_3seg_0dqpsk;
+ } else { /* QPSK or QAM on central segment */
+ if (c->layer[1].modulation == DQPSK) /* DQPSK on external segments */
+ ncoeff = coeff_8k_sb_3seg_1dqpsk;
+ else /* QPSK or QAM on external segments */
+ ncoeff = coeff_8k_sb_3seg;
+ }
+ }
+ break;
+ }
+
+ for (i = 0; i < 8; i++)
+ dib8000_write_word(state, 343 + i, ncoeff[i]);
+ }
+}
+
+static const u16 coff_thres_1seg[3] = {300, 150, 80};
+static const u16 coff_thres_3seg[3] = {350, 300, 250};
+static void dib8000_set_sb_channel(struct dib8000_state *state)
+{
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+ const u16 *coff;
+ u16 i;
+
+ if (c->transmission_mode == TRANSMISSION_MODE_2K || c->transmission_mode == TRANSMISSION_MODE_4K) {
+ dib8000_write_word(state, 219, dib8000_read_word(state, 219) | 0x1); /* adp_pass =1 */
+ dib8000_write_word(state, 190, dib8000_read_word(state, 190) | (0x1 << 14)); /* pha3_force_pha_shift = 1 */
+ } else {
+ dib8000_write_word(state, 219, dib8000_read_word(state, 219) & 0xfffe); /* adp_pass =0 */
+ dib8000_write_word(state, 190, dib8000_read_word(state, 190) & 0xbfff); /* pha3_force_pha_shift = 0 */
+ }
+
+ if (c->isdbt_partial_reception == 1) /* 3-segments */
+ state->seg_mask = 0x00E0;
+ else /* 1-segment */
+ state->seg_mask = 0x0040;
+
+ dib8000_write_word(state, 268, (dib8000_read_word(state, 268) & 0xF9FF) | 0x0200);
+
+ /* ---- COFF ---- Carloff, the most robust --- */
+ /* P_coff_cpil_alpha=4, P_coff_inh=0, P_coff_cpil_winlen=64, P_coff_narrow_band=1, P_coff_square_val=1, P_coff_one_seg=~partial_rcpt, P_coff_use_tmcc=1, P_coff_use_ac=1 */
+ dib8000_write_word(state, 187, (4 << 12) | (0 << 11) | (63 << 5) | (0x3 << 3) | ((~c->isdbt_partial_reception & 1) << 2) | 0x3);
+
+ dib8000_write_word(state, 340, (16 << 6) | (8 << 0)); /* P_ctrl_pre_freq_win_len=16, P_ctrl_pre_freq_thres_lockin=8 */
+ dib8000_write_word(state, 341, (6 << 3) | (1 << 2) | (1 << 1) | (1 << 0));/* P_ctrl_pre_freq_thres_lockout=6, P_small_use_tmcc/ac/cp=1 */
+
+ /* Sound Broadcasting mode 1 seg */
+ if (c->isdbt_partial_reception == 0) {
+ /* P_coff_winlen=63, P_coff_thres_lock=15, P_coff_one_seg_width = (P_mode == 3) , P_coff_one_seg_sym = (P_mode-1) */
+ if (state->mode == 3)
+ dib8000_write_word(state, 180, 0x1fcf | ((state->mode - 1) << 14));
+ else
+ dib8000_write_word(state, 180, 0x0fcf | ((state->mode - 1) << 14));
+
+ /* P_ctrl_corm_thres4pre_freq_inh=1,P_ctrl_pre_freq_mode_sat=1, P_ctrl_pre_freq_inh=0, P_ctrl_pre_freq_step = 5, P_pre_freq_win_len=4 */
+ dib8000_write_word(state, 338, (1 << 12) | (1 << 10) | (0 << 9) | (5 << 5) | 4);
+ coff = &coff_thres_1seg[0];
+ } else { /* Sound Broadcasting mode 3 seg */
+ dib8000_write_word(state, 180, 0x1fcf | (1 << 14));
+ /* P_ctrl_corm_thres4pre_freq_inh = 1, P_ctrl_pre_freq_mode_sat=1, P_ctrl_pre_freq_inh=0, P_ctrl_pre_freq_step = 4, P_pre_freq_win_len=4 */
+ dib8000_write_word(state, 338, (1 << 12) | (1 << 10) | (0 << 9) | (4 << 5) | 4);
+ coff = &coff_thres_3seg[0];
+ }
+
+ dib8000_write_word(state, 228, 1); /* P_2d_mode_byp=1 */
+ dib8000_write_word(state, 205, dib8000_read_word(state, 205) & 0xfff0); /* P_cspu_win_cut = 0 */
+
+ if (c->isdbt_partial_reception == 0 && c->transmission_mode == TRANSMISSION_MODE_2K)
+ dib8000_write_word(state, 265, 15); /* P_equal_noise_sel = 15 */
+
+ /* Write COFF thres */
+ for (i = 0 ; i < 3; i++) {
+ dib8000_write_word(state, 181+i, coff[i]);
+ dib8000_write_word(state, 184+i, coff[i]);
+ }
+
+ /*
+ * make the cpil_coff_lock more robust but slower p_coff_winlen
+ * 6bits; p_coff_thres_lock 6bits (for coff lock if needed)
+ */
+
+ dib8000_write_word(state, 266, ~state->seg_mask | state->seg_diff_mask); /* P_equal_noise_seg_inh */
+
+ if (c->isdbt_partial_reception == 0)
+ dib8000_write_word(state, 178, 64); /* P_fft_powrange = 64 */
+ else
+ dib8000_write_word(state, 178, 32); /* P_fft_powrange = 32 */
+}
+
+static void dib8000_set_isdbt_common_channel(struct dib8000_state *state, u8 seq, u8 autosearching)
+{
+ u16 p_cfr_left_edge = 0, p_cfr_right_edge = 0;
+ u16 tmcc_pow = 0, ana_gain = 0, tmp = 0, i = 0, nbseg_diff = 0 ;
+ u16 max_constellation = DQPSK;
+ int init_prbs;
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+
+ if (autosearching)
+ c->isdbt_partial_reception = 1;
+
+ /* P_mode */
+ dib8000_write_word(state, 10, (seq << 4));
+
+ /* init mode */
+ state->mode = fft_to_mode(state);
+
+ /* set guard */
+ tmp = dib8000_read_word(state, 1);
+ dib8000_write_word(state, 1, (tmp&0xfffc) | (c->guard_interval & 0x3));
+
+ dib8000_write_word(state, 274, (dib8000_read_word(state, 274) & 0xffcf) | ((c->isdbt_partial_reception & 1) << 5) | ((c->isdbt_sb_mode & 1) << 4));
+
+ /* signal optimization parameter */
+ if (c->isdbt_partial_reception) {
+ state->seg_diff_mask = (c->layer[0].modulation == DQPSK) << permu_seg[0];
+ for (i = 1; i < 3; i++)
+ nbseg_diff += (c->layer[i].modulation == DQPSK) * c->layer[i].segment_count;
+ for (i = 0; i < nbseg_diff; i++)
+ state->seg_diff_mask |= 1 << permu_seg[i+1];
+ } else {
+ for (i = 0; i < 3; i++)
+ nbseg_diff += (c->layer[i].modulation == DQPSK) * c->layer[i].segment_count;
+ for (i = 0; i < nbseg_diff; i++)
+ state->seg_diff_mask |= 1 << permu_seg[i];
+ }
+
+ if (state->seg_diff_mask)
+ dib8000_write_word(state, 268, (dib8000_read_word(state, 268) & 0xF9FF) | 0x0200);
+ else
+ dib8000_write_word(state, 268, (2 << 9) | 39); /*init value */
+
+ for (i = 0; i < 3; i++)
+ max_constellation = dib8000_set_layer(state, i, max_constellation);
+ if (autosearching == 0) {
+ state->layer_b_nb_seg = c->layer[1].segment_count;
+ state->layer_c_nb_seg = c->layer[2].segment_count;
+ }
+
+ /* WRITE: Mode & Diff mask */
+ dib8000_write_word(state, 0, (state->mode << 13) | state->seg_diff_mask);
+
+ state->differential_constellation = (state->seg_diff_mask != 0);
+
+ /* channel estimation fine configuration */
+ ana_gain = dib8000_adp_fine_tune(state, max_constellation);
+
+ /* update ana_gain depending on max constellation */
+ dib8000_update_ana_gain(state, ana_gain);
+
+ /* ---- ANA_FE ---- */
+ if (c->isdbt_partial_reception) /* 3-segments */
+ dib8000_load_ana_fe_coefs(state, ana_fe_coeff_3seg);
+ else
+ dib8000_load_ana_fe_coefs(state, ana_fe_coeff_1seg); /* 1-segment */
+
+ /* TSB or ISDBT ? apply it now */
+ if (c->isdbt_sb_mode) {
+ dib8000_set_sb_channel(state);
+ if (c->isdbt_sb_subchannel < 14)
+ init_prbs = dib8000_get_init_prbs(state, c->isdbt_sb_subchannel);
+ else
+ init_prbs = 0;
+ } else {
+ dib8000_set_13seg_channel(state);
+ init_prbs = 0xfff;
+ }
+
+ /* SMALL */
+ dib8000_small_fine_tune(state);
+
+ dib8000_set_subchannel_prbs(state, init_prbs);
+
+ /* ---- CHAN_BLK ---- */
+ for (i = 0; i < 13; i++) {
+ if ((((~state->seg_diff_mask) >> i) & 1) == 1) {
+ p_cfr_left_edge += (1 << i) * ((i == 0) || ((((state->seg_mask & (~state->seg_diff_mask)) >> (i - 1)) & 1) == 0));
+ p_cfr_right_edge += (1 << i) * ((i == 12) || ((((state->seg_mask & (~state->seg_diff_mask)) >> (i + 1)) & 1) == 0));
+ }
+ }
+ dib8000_write_word(state, 222, p_cfr_left_edge); /* p_cfr_left_edge */
+ dib8000_write_word(state, 223, p_cfr_right_edge); /* p_cfr_right_edge */
+ /* "P_cspu_left_edge" & "P_cspu_right_edge" not used => do not care */
+
+ dib8000_write_word(state, 189, ~state->seg_mask | state->seg_diff_mask); /* P_lmod4_seg_inh */
+ dib8000_write_word(state, 192, ~state->seg_mask | state->seg_diff_mask); /* P_pha3_seg_inh */
+ dib8000_write_word(state, 225, ~state->seg_mask | state->seg_diff_mask); /* P_tac_seg_inh */
+
+ if (!autosearching)
+ dib8000_write_word(state, 288, (~state->seg_mask | state->seg_diff_mask) & 0x1fff); /* P_tmcc_seg_eq_inh */
+ else
+ dib8000_write_word(state, 288, 0x1fff); /*disable equalisation of the tmcc when autosearch to be able to find the DQPSK channels. */
+
+ dib8000_write_word(state, 211, state->seg_mask & (~state->seg_diff_mask)); /* P_des_seg_enabled */
+ dib8000_write_word(state, 287, ~state->seg_mask | 0x1000); /* P_tmcc_seg_inh */
+
+ dib8000_write_word(state, 178, 32); /* P_fft_powrange = 32 */
+
+ /* ---- TMCC ---- */
+ for (i = 0; i < 3; i++)
+ tmcc_pow += (((c->layer[i].modulation == DQPSK) * 4 + 1) * c->layer[i].segment_count) ;
+
+ /* Quantif of "P_tmcc_dec_thres_?k" is (0, 5+mode, 9); */
+ /* Threshold is set at 1/4 of max power. */
+ tmcc_pow *= (1 << (9-2));
+ dib8000_write_word(state, 290, tmcc_pow); /* P_tmcc_dec_thres_2k */
+ dib8000_write_word(state, 291, tmcc_pow); /* P_tmcc_dec_thres_4k */
+ dib8000_write_word(state, 292, tmcc_pow); /* P_tmcc_dec_thres_8k */
+ /*dib8000_write_word(state, 287, (1 << 13) | 0x1000 ); */
+
+ /* ---- PHA3 ---- */
+ if (state->isdbt_cfg_loaded == 0)
+ dib8000_write_word(state, 250, 3285); /* p_2d_hspeed_thr0 */
+
+ state->isdbt_cfg_loaded = 0;
+}
+
+static u32 dib8000_wait_lock(struct dib8000_state *state, u32 internal,
+ u32 wait0_ms, u32 wait1_ms, u32 wait2_ms)
+{
+ u32 value = 0; /* P_search_end0 wait time */
+ u16 reg = 11; /* P_search_end0 start addr */
+
+ for (reg = 11; reg < 16; reg += 2) {
+ if (reg == 11) {
+ if (state->revision == 0x8090)
+ value = internal * wait1_ms;
+ else
+ value = internal * wait0_ms;
+ } else if (reg == 13)
+ value = internal * wait1_ms;
+ else if (reg == 15)
+ value = internal * wait2_ms;
+ dib8000_write_word(state, reg, (u16)((value >> 16) & 0xffff));
+ dib8000_write_word(state, (reg + 1), (u16)(value & 0xffff));
+ }
+ return value;
+}
+
+static int dib8000_autosearch_start(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+ u8 slist = 0;
+ u32 value, internal = state->cfg.pll->internal;
+
+ if (state->revision == 0x8090)
+ internal = dib8000_read32(state, 23) / 1000;
+
+ if ((state->revision >= 0x8002) &&
+ (state->autosearch_state == AS_SEARCHING_FFT)) {
+ dib8000_write_word(state, 37, 0x0065); /* P_ctrl_pha_off_max default values */
+ dib8000_write_word(state, 116, 0x0000); /* P_ana_gain to 0 */
+
+ dib8000_write_word(state, 0, (dib8000_read_word(state, 0) & 0x1fff) | (0 << 13) | (1 << 15)); /* P_mode = 0, P_restart_search=1 */
+ dib8000_write_word(state, 1, (dib8000_read_word(state, 1) & 0xfffc) | 0); /* P_guard = 0 */
+ dib8000_write_word(state, 6, 0); /* P_lock0_mask = 0 */
+ dib8000_write_word(state, 7, 0); /* P_lock1_mask = 0 */
+ dib8000_write_word(state, 8, 0); /* P_lock2_mask = 0 */
+ dib8000_write_word(state, 10, (dib8000_read_word(state, 10) & 0x200) | (16 << 4) | (0 << 0)); /* P_search_list=16, P_search_maxtrial=0 */
+
+ if (state->revision == 0x8090)
+ value = dib8000_wait_lock(state, internal, 10, 10, 10); /* time in ms configure P_search_end0 P_search_end1 P_search_end2 */
+ else
+ value = dib8000_wait_lock(state, internal, 20, 20, 20); /* time in ms configure P_search_end0 P_search_end1 P_search_end2 */
+
+ dib8000_write_word(state, 17, 0);
+ dib8000_write_word(state, 18, 200); /* P_search_rstst = 200 */
+ dib8000_write_word(state, 19, 0);
+ dib8000_write_word(state, 20, 400); /* P_search_rstend = 400 */
+ dib8000_write_word(state, 21, (value >> 16) & 0xffff); /* P_search_checkst */
+ dib8000_write_word(state, 22, value & 0xffff);
+
+ if (state->revision == 0x8090)
+ dib8000_write_word(state, 32, (dib8000_read_word(state, 32) & 0xf0ff) | (0 << 8)); /* P_corm_alpha = 0 */
+ else
+ dib8000_write_word(state, 32, (dib8000_read_word(state, 32) & 0xf0ff) | (9 << 8)); /* P_corm_alpha = 3 */
+ dib8000_write_word(state, 355, 2); /* P_search_param_max = 2 */
+
+ /* P_search_param_select = (1 | 1<<4 | 1 << 8) */
+ dib8000_write_word(state, 356, 0);
+ dib8000_write_word(state, 357, 0x111);
+
+ dib8000_write_word(state, 770, (dib8000_read_word(state, 770) & 0xdfff) | (1 << 13)); /* P_restart_ccg = 1 */
+ dib8000_write_word(state, 770, (dib8000_read_word(state, 770) & 0xdfff) | (0 << 13)); /* P_restart_ccg = 0 */
+ dib8000_write_word(state, 0, (dib8000_read_word(state, 0) & 0x7ff) | (0 << 15) | (1 << 13)); /* P_restart_search = 0; */
+ } else if ((state->revision >= 0x8002) &&
+ (state->autosearch_state == AS_SEARCHING_GUARD)) {
+ c->transmission_mode = TRANSMISSION_MODE_8K;
+ c->guard_interval = GUARD_INTERVAL_1_8;
+ c->inversion = 0;
+ c->layer[0].modulation = QAM_64;
+ c->layer[0].fec = FEC_2_3;
+ c->layer[0].interleaving = 0;
+ c->layer[0].segment_count = 13;
+
+ slist = 16;
+ c->transmission_mode = state->found_nfft;
+
+ dib8000_set_isdbt_common_channel(state, slist, 1);
+
+ /* set lock_mask values */
+ dib8000_write_word(state, 6, 0x4);
+ if (state->revision == 0x8090)
+ dib8000_write_word(state, 7, ((1 << 12) | (1 << 11) | (1 << 10)));/* tmcc_dec_lock, tmcc_sync_lock, tmcc_data_lock, tmcc_bch_uncor */
+ else
+ dib8000_write_word(state, 7, 0x8);
+ dib8000_write_word(state, 8, 0x1000);
+
+ /* set lock_mask wait time values */
+ if (state->revision == 0x8090)
+ dib8000_wait_lock(state, internal, 50, 100, 1000); /* time in ms configure P_search_end0 P_search_end1 P_search_end2 */
+ else
+ dib8000_wait_lock(state, internal, 50, 200, 1000); /* time in ms configure P_search_end0 P_search_end1 P_search_end2 */
+
+ dib8000_write_word(state, 355, 3); /* P_search_param_max = 3 */
+
+ /* P_search_param_select = 0xf; look for the 4 different guard intervals */
+ dib8000_write_word(state, 356, 0);
+ dib8000_write_word(state, 357, 0xf);
+
+ value = dib8000_read_word(state, 0);
+ dib8000_write_word(state, 0, (u16)((1 << 15) | value));
+ dib8000_read_word(state, 1284); /* reset the INT. n_irq_pending */
+ dib8000_write_word(state, 0, (u16)value);
+ } else {
+ c->inversion = 0;
+ c->layer[0].modulation = QAM_64;
+ c->layer[0].fec = FEC_2_3;
+ c->layer[0].interleaving = 0;
+ c->layer[0].segment_count = 13;
+ if (!c->isdbt_sb_mode)
+ c->layer[0].segment_count = 13;
+
+ /* choose the right list, in sb, always do everything */
+ if (c->isdbt_sb_mode) {
+ slist = 7;
+ dib8000_write_word(state, 0, (dib8000_read_word(state, 0) & 0x9fff) | (1 << 13));
+ } else {
+ if (c->guard_interval == GUARD_INTERVAL_AUTO) {
+ if (c->transmission_mode == TRANSMISSION_MODE_AUTO) {
+ c->transmission_mode = TRANSMISSION_MODE_8K;
+ c->guard_interval = GUARD_INTERVAL_1_8;
+ slist = 7;
+ dib8000_write_word(state, 0, (dib8000_read_word(state, 0) & 0x9fff) | (1 << 13)); /* P_mode = 1 to have autosearch start ok with mode2 */
+ } else {
+ c->guard_interval = GUARD_INTERVAL_1_8;
+ slist = 3;
+ }
+ } else {
+ if (c->transmission_mode == TRANSMISSION_MODE_AUTO) {
+ c->transmission_mode = TRANSMISSION_MODE_8K;
+ slist = 2;
+ dib8000_write_word(state, 0, (dib8000_read_word(state, 0) & 0x9fff) | (1 << 13)); /* P_mode = 1 */
+ } else
+ slist = 0;
+ }
+ }
+ dprintk("Using list for autosearch : %d", slist);
+
+ dib8000_set_isdbt_common_channel(state, slist, 1);
+
+ /* set lock_mask values */
+ dib8000_write_word(state, 6, 0x4);
+ if (state->revision == 0x8090)
+ dib8000_write_word(state, 7, (1 << 12) | (1 << 11) | (1 << 10));
+ else
+ dib8000_write_word(state, 7, 0x8);
+ dib8000_write_word(state, 8, 0x1000);
+
+ /* set lock_mask wait time values */
+ if (state->revision == 0x8090)
+ dib8000_wait_lock(state, internal, 50, 200, 1000); /* time in ms configure P_search_end0 P_search_end1 P_search_end2 */
+ else
+ dib8000_wait_lock(state, internal, 50, 100, 1000); /* time in ms configure P_search_end0 P_search_end1 P_search_end2 */
+
+ value = dib8000_read_word(state, 0);
+ dib8000_write_word(state, 0, (u16)((1 << 15) | value));
+ dib8000_read_word(state, 1284); /* reset the INT. n_irq_pending */
+ dib8000_write_word(state, 0, (u16)value);
+ }
+ return 0;
+}
+
+static int dib8000_autosearch_irq(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u16 irq_pending = dib8000_read_word(state, 1284);
+
+ if ((state->revision >= 0x8002) &&
+ (state->autosearch_state == AS_SEARCHING_FFT)) {
+ if (irq_pending & 0x1) {
+ dprintk("dib8000_autosearch_irq: max correlation result available");
+ return 3;
+ }
+ } else {
+ if (irq_pending & 0x1) { /* failed */
+ dprintk("dib8000_autosearch_irq failed");
+ return 1;
+ }
+
+ if (irq_pending & 0x2) { /* succeeded */
+ dprintk("dib8000_autosearch_irq succeeded");
+ return 2;
+ }
+ }
+
+ return 0; // still pending
+}
+
+static void dib8000_viterbi_state(struct dib8000_state *state, u8 onoff)
+{
+ u16 tmp;
+
+ tmp = dib8000_read_word(state, 771);
+ if (onoff) /* start P_restart_chd : channel_decoder */
+ dib8000_write_word(state, 771, tmp & 0xfffd);
+ else /* stop P_restart_chd : channel_decoder */
+ dib8000_write_word(state, 771, tmp | (1<<1));
+}
+
+static void dib8000_set_dds(struct dib8000_state *state, s32 offset_khz)
+{
+ s16 unit_khz_dds_val;
+ u32 abs_offset_khz = ABS(offset_khz);
+ u32 dds = state->cfg.pll->ifreq & 0x1ffffff;
+ u8 invert = !!(state->cfg.pll->ifreq & (1 << 25));
+ u8 ratio;
+
+ if (state->revision == 0x8090) {
+ ratio = 4;
+ unit_khz_dds_val = (1<<26) / (dib8000_read32(state, 23) / 1000);
+ if (offset_khz < 0)
+ dds = (1 << 26) - (abs_offset_khz * unit_khz_dds_val);
+ else
+ dds = (abs_offset_khz * unit_khz_dds_val);
+
+ if (invert)
+ dds = (1<<26) - dds;
+ } else {
+ ratio = 2;
+ unit_khz_dds_val = (u16) (67108864 / state->cfg.pll->internal);
+
+ if (offset_khz < 0)
+ unit_khz_dds_val *= -1;
+
+ /* IF tuner */
+ if (invert)
+ dds -= abs_offset_khz * unit_khz_dds_val;
+ else
+ dds += abs_offset_khz * unit_khz_dds_val;
+ }
+
+ dprintk("setting a DDS frequency offset of %c%dkHz", invert ? '-' : ' ', dds / unit_khz_dds_val);
+
+ if (abs_offset_khz <= (state->cfg.pll->internal / ratio)) {
+ /* Max dds offset is the half of the demod freq */
+ dib8000_write_word(state, 26, invert);
+ dib8000_write_word(state, 27, (u16)(dds >> 16) & 0x1ff);
+ dib8000_write_word(state, 28, (u16)(dds & 0xffff));
+ }
+}
+
+static void dib8000_set_frequency_offset(struct dib8000_state *state)
+{
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+ int i;
+ u32 current_rf;
+ int total_dds_offset_khz;
+
+ if (state->fe[0]->ops.tuner_ops.get_frequency)
+ state->fe[0]->ops.tuner_ops.get_frequency(state->fe[0], &current_rf);
+ else
+ current_rf = c->frequency;
+ current_rf /= 1000;
+ total_dds_offset_khz = (int)current_rf - (int)c->frequency / 1000;
+
+ if (c->isdbt_sb_mode) {
+ state->subchannel = c->isdbt_sb_subchannel;
+
+ i = dib8000_read_word(state, 26) & 1; /* P_dds_invspec */
+ dib8000_write_word(state, 26, c->inversion ^ i);
+
+ if (state->cfg.pll->ifreq == 0) { /* low if tuner */
+ if ((c->inversion ^ i) == 0)
+ dib8000_write_word(state, 26, dib8000_read_word(state, 26) | 1);
+ } else {
+ if ((c->inversion ^ i) == 0)
+ total_dds_offset_khz *= -1;
+ }
+ }
+
+ dprintk("%dkhz tuner offset (frequency = %dHz & current_rf = %dHz) total_dds_offset_hz = %d", c->frequency - current_rf, c->frequency, current_rf, total_dds_offset_khz);
+
+ /* apply dds offset now */
+ dib8000_set_dds(state, total_dds_offset_khz);
+}
+
+static u16 LUT_isdbt_symbol_duration[4] = { 26, 101, 63 };
+
+static u32 dib8000_get_symbol_duration(struct dib8000_state *state)
+{
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+ u16 i;
+
+ switch (c->transmission_mode) {
+ case TRANSMISSION_MODE_2K:
+ i = 0;
+ break;
+ case TRANSMISSION_MODE_4K:
+ i = 2;
+ break;
+ default:
+ case TRANSMISSION_MODE_AUTO:
+ case TRANSMISSION_MODE_8K:
+ i = 1;
+ break;
+ }
+
+ return (LUT_isdbt_symbol_duration[i] / (c->bandwidth_hz / 1000)) + 1;
+}
+
+static void dib8000_set_isdbt_loop_params(struct dib8000_state *state, enum param_loop_step loop_step)
+{
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+ u16 reg_32 = 0, reg_37 = 0;
+
+ switch (loop_step) {
+ case LOOP_TUNE_1:
+ if (c->isdbt_sb_mode) {
+ if (c->isdbt_partial_reception == 0) {
+ reg_32 = ((11 - state->mode) << 12) | (6 << 8) | 0x40; /* P_timf_alpha = (11-P_mode), P_corm_alpha=6, P_corm_thres=0x40 */
+ reg_37 = (3 << 5) | (0 << 4) | (10 - state->mode); /* P_ctrl_pha_off_max=3 P_ctrl_sfreq_inh =0 P_ctrl_sfreq_step = (10-P_mode) */
+ } else { /* Sound Broadcasting mode 3 seg */
+ reg_32 = ((10 - state->mode) << 12) | (6 << 8) | 0x60; /* P_timf_alpha = (10-P_mode), P_corm_alpha=6, P_corm_thres=0x60 */
+ reg_37 = (3 << 5) | (0 << 4) | (9 - state->mode); /* P_ctrl_pha_off_max=3 P_ctrl_sfreq_inh =0 P_ctrl_sfreq_step = (9-P_mode) */
+ }
+ } else { /* 13-seg start conf offset loop parameters */
+ reg_32 = ((9 - state->mode) << 12) | (6 << 8) | 0x80; /* P_timf_alpha = (9-P_mode, P_corm_alpha=6, P_corm_thres=0x80 */
+ reg_37 = (3 << 5) | (0 << 4) | (8 - state->mode); /* P_ctrl_pha_off_max=3 P_ctrl_sfreq_inh =0 P_ctrl_sfreq_step = 9 */
+ }
+ break;
+ case LOOP_TUNE_2:
+ if (c->isdbt_sb_mode) {
+ if (c->isdbt_partial_reception == 0) { /* Sound Broadcasting mode 1 seg */
+ reg_32 = ((13-state->mode) << 12) | (6 << 8) | 0x40; /* P_timf_alpha = (13-P_mode) , P_corm_alpha=6, P_corm_thres=0x40*/
+ reg_37 = (12-state->mode) | ((5 + state->mode) << 5);
+ } else { /* Sound Broadcasting mode 3 seg */
+ reg_32 = ((12-state->mode) << 12) | (6 << 8) | 0x60; /* P_timf_alpha = (12-P_mode) , P_corm_alpha=6, P_corm_thres=0x60 */
+ reg_37 = (11-state->mode) | ((5 + state->mode) << 5);
+ }
+ } else { /* 13 seg */
+ reg_32 = ((11-state->mode) << 12) | (6 << 8) | 0x80; /* P_timf_alpha = 8 , P_corm_alpha=6, P_corm_thres=0x80 */
+ reg_37 = ((5+state->mode) << 5) | (10 - state->mode);
+ }
+ break;
+ }
+ dib8000_write_word(state, 32, reg_32);
+ dib8000_write_word(state, 37, reg_37);
+}
+
+static void dib8000_demod_restart(struct dib8000_state *state)
+{
+ dib8000_write_word(state, 770, 0x4000);
+ dib8000_write_word(state, 770, 0x0000);
+ return;
+}
+
+static void dib8000_set_sync_wait(struct dib8000_state *state)
+{
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+ u16 sync_wait = 64;
+
+ /* P_dvsy_sync_wait - reuse mode */
+ switch (c->transmission_mode) {
+ case TRANSMISSION_MODE_8K:
+ sync_wait = 256;
+ break;
+ case TRANSMISSION_MODE_4K:
+ sync_wait = 128;
+ break;
+ default:
+ case TRANSMISSION_MODE_2K:
+ sync_wait = 64;
+ break;
+ }
+
+ if (state->cfg.diversity_delay == 0)
+ sync_wait = (sync_wait * (1 << (c->guard_interval)) * 3) / 2 + 48; /* add 50% SFN margin + compensate for one DVSY-fifo */
+ else
+ sync_wait = (sync_wait * (1 << (c->guard_interval)) * 3) / 2 + state->cfg.diversity_delay; /* add 50% SFN margin + compensate for DVSY-fifo */
+
+ dib8000_write_word(state, 273, (dib8000_read_word(state, 273) & 0x000f) | (sync_wait << 4));
+}
+
+static unsigned long dib8000_get_timeout(struct dib8000_state *state, u32 delay, enum timeout_mode mode)
+{
+ if (mode == SYMBOL_DEPENDENT_ON)
+ delay *= state->symbol_duration;
+
+ return jiffies + usecs_to_jiffies(delay * 100);
+}
+
+static s32 dib8000_get_status(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ return state->status;
+}
+
+static enum frontend_tune_state dib8000_get_tune_state(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ return state->tune_state;
+}
+
+static int dib8000_set_tune_state(struct dvb_frontend *fe, enum frontend_tune_state tune_state)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+
+ state->tune_state = tune_state;
+ return 0;
+}
+
+static int dib8000_tune_restart_from_demod(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+
+ state->status = FE_STATUS_TUNE_PENDING;
+ state->tune_state = CT_DEMOD_START;
+ return 0;
+}
+
+static u16 dib8000_read_lock(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+
+ if (state->revision == 0x8090)
+ return dib8000_read_word(state, 570);
+ return dib8000_read_word(state, 568);
+}
+
+static int dib8090p_init_sdram(struct dib8000_state *state)
+{
+ u16 reg = 0;
+ dprintk("init sdram");
+
+ reg = dib8000_read_word(state, 274) & 0xfff0;
+ dib8000_write_word(state, 274, reg | 0x7); /* P_dintlv_delay_ram = 7 because of MobileSdram */
+
+ dib8000_write_word(state, 1803, (7 << 2));
+
+ reg = dib8000_read_word(state, 1280);
+ dib8000_write_word(state, 1280, reg | (1 << 2)); /* force restart P_restart_sdram */
+ dib8000_write_word(state, 1280, reg); /* release restart P_restart_sdram */
+
+ return 0;
+}
+
+/**
+ * is_manual_mode - Check if TMCC should be used for parameters settings
+ * @c: struct dvb_frontend_properties
+ *
+ * By default, TMCC table should be used for parameter settings on most
+ * usercases. However, sometimes it is desirable to lock the demod to
+ * use the manual parameters.
+ *
+ * On manual mode, the current dib8000_tune state machine is very restrict:
+ * It requires that both per-layer and per-transponder parameters to be
+ * properly specified, otherwise the device won't lock.
+ *
+ * Check if all those conditions are properly satisfied before allowing
+ * the device to use the manual frequency lock mode.
+ */
+static int is_manual_mode(struct dtv_frontend_properties *c)
+{
+ int i, n_segs = 0;
+
+ /* Use auto mode on DVB-T compat mode */
+ if (c->delivery_system != SYS_ISDBT)
+ return 0;
+
+ /*
+ * Transmission mode is only detected on auto mode, currently
+ */
+ if (c->transmission_mode == TRANSMISSION_MODE_AUTO) {
+ dprintk("transmission mode auto");
+ return 0;
+ }
+
+ /*
+ * Guard interval is only detected on auto mode, currently
+ */
+ if (c->guard_interval == GUARD_INTERVAL_AUTO) {
+ dprintk("guard interval auto");
+ return 0;
+ }
+
+ /*
+ * If no layer is enabled, assume auto mode, as at least one
+ * layer should be enabled
+ */
+ if (!c->isdbt_layer_enabled) {
+ dprintk("no layer modulation specified");
+ return 0;
+ }
+
+ /*
+ * Check if the per-layer parameters aren't auto and
+ * disable a layer if segment count is 0 or invalid.
+ */
+ for (i = 0; i < 3; i++) {
+ if (!(c->isdbt_layer_enabled & 1 << i))
+ continue;
+
+ if ((c->layer[i].segment_count > 13) ||
+ (c->layer[i].segment_count == 0)) {
+ c->isdbt_layer_enabled &= ~(1 << i);
+ continue;
+ }
+
+ n_segs += c->layer[i].segment_count;
+
+ if ((c->layer[i].modulation == QAM_AUTO) ||
+ (c->layer[i].fec == FEC_AUTO)) {
+ dprintk("layer %c has either modulation or FEC auto",
+ 'A' + i);
+ return 0;
+ }
+ }
+
+ /*
+ * Userspace specified a wrong number of segments.
+ * fallback to auto mode.
+ */
+ if (n_segs == 0 || n_segs > 13) {
+ dprintk("number of segments is invalid");
+ return 0;
+ }
+
+ /* Everything looks ok for manual mode */
+ return 1;
+}
+
+static int dib8000_tune(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+ enum frontend_tune_state *tune_state = &state->tune_state;
+
+ u16 locks, deeper_interleaver = 0, i;
+ int ret = 1; /* 1 symbol duration (in 100us unit) delay most of the time */
+
+ unsigned long *timeout = &state->timeout;
+ unsigned long now = jiffies;
+#ifdef DIB8000_AGC_FREEZE
+ u16 agc1, agc2;
+#endif
+
+ u32 corm[4] = {0, 0, 0, 0};
+ u8 find_index, max_value;
+
+#if 0
+ if (*tune_state < CT_DEMOD_STOP)
+ dprintk("IN: context status = %d, TUNE_STATE %d autosearch step = %u jiffies = %lu",
+ state->channel_parameters_set, *tune_state, state->autosearch_state, now);
+#endif
+
+ switch (*tune_state) {
+ case CT_DEMOD_START: /* 30 */
+ dib8000_reset_stats(fe);
+
+ if (state->revision == 0x8090)
+ dib8090p_init_sdram(state);
+ state->status = FE_STATUS_TUNE_PENDING;
+ state->channel_parameters_set = is_manual_mode(c);
+
+ dprintk("Tuning channel on %s search mode",
+ state->channel_parameters_set ? "manual" : "auto");
+
+ dib8000_viterbi_state(state, 0); /* force chan dec in restart */
+
+ /* Layer monitor */
+ dib8000_write_word(state, 285, dib8000_read_word(state, 285) & 0x60);
+
+ dib8000_set_frequency_offset(state);
+ dib8000_set_bandwidth(fe, c->bandwidth_hz / 1000);
+
+ if (state->channel_parameters_set == 0) { /* The channel struct is unknown, search it ! */
+#ifdef DIB8000_AGC_FREEZE
+ if (state->revision != 0x8090) {
+ state->agc1_max = dib8000_read_word(state, 108);
+ state->agc1_min = dib8000_read_word(state, 109);
+ state->agc2_max = dib8000_read_word(state, 110);
+ state->agc2_min = dib8000_read_word(state, 111);
+ agc1 = dib8000_read_word(state, 388);
+ agc2 = dib8000_read_word(state, 389);
+ dib8000_write_word(state, 108, agc1);
+ dib8000_write_word(state, 109, agc1);
+ dib8000_write_word(state, 110, agc2);
+ dib8000_write_word(state, 111, agc2);
+ }
+#endif
+ state->autosearch_state = AS_SEARCHING_FFT;
+ state->found_nfft = TRANSMISSION_MODE_AUTO;
+ state->found_guard = GUARD_INTERVAL_AUTO;
+ *tune_state = CT_DEMOD_SEARCH_NEXT;
+ } else { /* we already know the channel struct so TUNE only ! */
+ state->autosearch_state = AS_DONE;
+ *tune_state = CT_DEMOD_STEP_3;
+ }
+ state->symbol_duration = dib8000_get_symbol_duration(state);
+ break;
+
+ case CT_DEMOD_SEARCH_NEXT: /* 51 */
+ dib8000_autosearch_start(fe);
+ if (state->revision == 0x8090)
+ ret = 50;
+ else
+ ret = 15;
+ *tune_state = CT_DEMOD_STEP_1;
+ break;
+
+ case CT_DEMOD_STEP_1: /* 31 */
+ switch (dib8000_autosearch_irq(fe)) {
+ case 1: /* fail */
+ state->status = FE_STATUS_TUNE_FAILED;
+ state->autosearch_state = AS_DONE;
+ *tune_state = CT_DEMOD_STOP; /* else we are done here */
+ break;
+ case 2: /* Succes */
+ state->status = FE_STATUS_FFT_SUCCESS; /* signal to the upper layer, that there was a channel found and the parameters can be read */
+ *tune_state = CT_DEMOD_STEP_3;
+ if (state->autosearch_state == AS_SEARCHING_GUARD)
+ *tune_state = CT_DEMOD_STEP_2;
+ else
+ state->autosearch_state = AS_DONE;
+ break;
+ case 3: /* Autosearch FFT max correlation endded */
+ *tune_state = CT_DEMOD_STEP_2;
+ break;
+ }
+ break;
+
+ case CT_DEMOD_STEP_2:
+ switch (state->autosearch_state) {
+ case AS_SEARCHING_FFT:
+ /* searching for the correct FFT */
+ if (state->revision == 0x8090) {
+ corm[2] = (dib8000_read_word(state, 596) << 16) | (dib8000_read_word(state, 597));
+ corm[1] = (dib8000_read_word(state, 598) << 16) | (dib8000_read_word(state, 599));
+ corm[0] = (dib8000_read_word(state, 600) << 16) | (dib8000_read_word(state, 601));
+ } else {
+ corm[2] = (dib8000_read_word(state, 594) << 16) | (dib8000_read_word(state, 595));
+ corm[1] = (dib8000_read_word(state, 596) << 16) | (dib8000_read_word(state, 597));
+ corm[0] = (dib8000_read_word(state, 598) << 16) | (dib8000_read_word(state, 599));
+ }
+ /* dprintk("corm fft: %u %u %u", corm[0], corm[1], corm[2]); */
+
+ max_value = 0;
+ for (find_index = 1 ; find_index < 3 ; find_index++) {
+ if (corm[max_value] < corm[find_index])
+ max_value = find_index ;
+ }
+
+ switch (max_value) {
+ case 0:
+ state->found_nfft = TRANSMISSION_MODE_2K;
+ break;
+ case 1:
+ state->found_nfft = TRANSMISSION_MODE_4K;
+ break;
+ case 2:
+ default:
+ state->found_nfft = TRANSMISSION_MODE_8K;
+ break;
+ }
+ /* dprintk("Autosearch FFT has found Mode %d", max_value + 1); */
+
+ *tune_state = CT_DEMOD_SEARCH_NEXT;
+ state->autosearch_state = AS_SEARCHING_GUARD;
+ if (state->revision == 0x8090)
+ ret = 50;
+ else
+ ret = 10;
+ break;
+ case AS_SEARCHING_GUARD:
+ /* searching for the correct guard interval */
+ if (state->revision == 0x8090)
+ state->found_guard = dib8000_read_word(state, 572) & 0x3;
+ else
+ state->found_guard = dib8000_read_word(state, 570) & 0x3;
+ /* dprintk("guard interval found=%i", state->found_guard); */
+
+ *tune_state = CT_DEMOD_STEP_3;
+ break;
+ default:
+ /* the demod should never be in this state */
+ state->status = FE_STATUS_TUNE_FAILED;
+ state->autosearch_state = AS_DONE;
+ *tune_state = CT_DEMOD_STOP; /* else we are done here */
+ break;
+ }
+ break;
+
+ case CT_DEMOD_STEP_3: /* 33 */
+ dib8000_set_isdbt_loop_params(state, LOOP_TUNE_1);
+ dib8000_set_isdbt_common_channel(state, 0, 0);/* setting the known channel parameters here */
+ *tune_state = CT_DEMOD_STEP_4;
+ break;
+
+ case CT_DEMOD_STEP_4: /* (34) */
+ dib8000_demod_restart(state);
+
+ dib8000_set_sync_wait(state);
+ dib8000_set_diversity_in(state->fe[0], state->diversity_onoff);
+
+ locks = (dib8000_read_word(state, 180) >> 6) & 0x3f; /* P_coff_winlen ? */
+ /* coff should lock over P_coff_winlen ofdm symbols : give 3 times this length to lock */
+ *timeout = dib8000_get_timeout(state, 2 * locks, SYMBOL_DEPENDENT_ON);
+ *tune_state = CT_DEMOD_STEP_5;
+ break;
+
+ case CT_DEMOD_STEP_5: /* (35) */
+ locks = dib8000_read_lock(fe);
+ if (locks & (0x3 << 11)) { /* coff-lock and off_cpil_lock achieved */
+ dib8000_update_timf(state); /* we achieved a coff_cpil_lock - it's time to update the timf */
+ if (!state->differential_constellation) {
+ /* 2 times lmod4_win_len + 10 symbols (pipe delay after coff + nb to compute a 1st correlation) */
+ *timeout = dib8000_get_timeout(state, (20 * ((dib8000_read_word(state, 188)>>5)&0x1f)), SYMBOL_DEPENDENT_ON);
+ *tune_state = CT_DEMOD_STEP_7;
+ } else {
+ *tune_state = CT_DEMOD_STEP_8;
+ }
+ } else if (time_after(now, *timeout)) {
+ *tune_state = CT_DEMOD_STEP_6; /* goto check for diversity input connection */
+ }
+ break;
+
+ case CT_DEMOD_STEP_6: /* (36) if there is an input (diversity) */
+ if ((state->fe[1] != NULL) && (state->output_mode != OUTMODE_DIVERSITY)) {
+ /* if there is a diversity fe in input and this fe is has not already failled : wait here until this this fe has succedeed or failled */
+ if (dib8000_get_status(state->fe[1]) <= FE_STATUS_STD_SUCCESS) /* Something is locked on the input fe */
+ *tune_state = CT_DEMOD_STEP_8; /* go for mpeg */
+ else if (dib8000_get_status(state->fe[1]) >= FE_STATUS_TUNE_TIME_TOO_SHORT) { /* fe in input failled also, break the current one */
+ *tune_state = CT_DEMOD_STOP; /* else we are done here ; step 8 will close the loops and exit */
+ dib8000_viterbi_state(state, 1); /* start viterbi chandec */
+ dib8000_set_isdbt_loop_params(state, LOOP_TUNE_2);
+ state->status = FE_STATUS_TUNE_FAILED;
+ }
+ } else {
+ dib8000_viterbi_state(state, 1); /* start viterbi chandec */
+ dib8000_set_isdbt_loop_params(state, LOOP_TUNE_2);
+ *tune_state = CT_DEMOD_STOP; /* else we are done here ; step 8 will close the loops and exit */
+ state->status = FE_STATUS_TUNE_FAILED;
+ }
+ break;
+
+ case CT_DEMOD_STEP_7: /* 37 */
+ locks = dib8000_read_lock(fe);
+ if (locks & (1<<10)) { /* lmod4_lock */
+ ret = 14; /* wait for 14 symbols */
+ *tune_state = CT_DEMOD_STEP_8;
+ } else if (time_after(now, *timeout))
+ *tune_state = CT_DEMOD_STEP_6; /* goto check for diversity input connection */
+ break;
+
+ case CT_DEMOD_STEP_8: /* 38 */
+ dib8000_viterbi_state(state, 1); /* start viterbi chandec */
+ dib8000_set_isdbt_loop_params(state, LOOP_TUNE_2);
+
+ /* mpeg will never lock on this condition because init_prbs is not set : search for it !*/
+ if (c->isdbt_sb_mode
+ && c->isdbt_sb_subchannel < 14
+ && !state->differential_constellation) {
+ state->subchannel = 0;
+ *tune_state = CT_DEMOD_STEP_11;
+ } else {
+ *tune_state = CT_DEMOD_STEP_9;
+ state->status = FE_STATUS_LOCKED;
+ }
+ break;
+
+ case CT_DEMOD_STEP_9: /* 39 */
+ if ((state->revision == 0x8090) || ((dib8000_read_word(state, 1291) >> 9) & 0x1)) { /* fe capable of deinterleaving : esram */
+ /* defines timeout for mpeg lock depending on interleaver length of longest layer */
+ for (i = 0; i < 3; i++) {
+ if (c->layer[i].interleaving >= deeper_interleaver) {
+ dprintk("layer%i: time interleaver = %d ", i, c->layer[i].interleaving);
+ if (c->layer[i].segment_count > 0) { /* valid layer */
+ deeper_interleaver = c->layer[0].interleaving;
+ state->longest_intlv_layer = i;
+ }
+ }
+ }
+
+ if (deeper_interleaver == 0)
+ locks = 2; /* locks is the tmp local variable name */
+ else if (deeper_interleaver == 3)
+ locks = 8;
+ else
+ locks = 2 * deeper_interleaver;
+
+ if (state->diversity_onoff != 0) /* because of diversity sync */
+ locks *= 2;
+
+ *timeout = now + msecs_to_jiffies(200 * locks); /* give the mpeg lock 800ms if sram is present */
+ dprintk("Deeper interleaver mode = %d on layer %d : timeout mult factor = %d => will use timeout = %ld",
+ deeper_interleaver, state->longest_intlv_layer, locks, *timeout);
+
+ *tune_state = CT_DEMOD_STEP_10;
+ } else
+ *tune_state = CT_DEMOD_STOP;
+ break;
+
+ case CT_DEMOD_STEP_10: /* 40 */
+ locks = dib8000_read_lock(fe);
+ if (locks&(1<<(7-state->longest_intlv_layer))) { /* mpeg lock : check the longest one */
+ dprintk("ISDB-T layer locks: Layer A %s, Layer B %s, Layer C %s",
+ c->layer[0].segment_count ? (locks >> 7) & 0x1 ? "locked" : "NOT LOCKED" : "not enabled",
+ c->layer[1].segment_count ? (locks >> 6) & 0x1 ? "locked" : "NOT LOCKED" : "not enabled",
+ c->layer[2].segment_count ? (locks >> 5) & 0x1 ? "locked" : "NOT LOCKED" : "not enabled");
+ if (c->isdbt_sb_mode
+ && c->isdbt_sb_subchannel < 14
+ && !state->differential_constellation)
+ /* signal to the upper layer, that there was a channel found and the parameters can be read */
+ state->status = FE_STATUS_DEMOD_SUCCESS;
+ else
+ state->status = FE_STATUS_DATA_LOCKED;
+ *tune_state = CT_DEMOD_STOP;
+ } else if (time_after(now, *timeout)) {
+ if (c->isdbt_sb_mode
+ && c->isdbt_sb_subchannel < 14
+ && !state->differential_constellation) { /* continue to try init prbs autosearch */
+ state->subchannel += 3;
+ *tune_state = CT_DEMOD_STEP_11;
+ } else { /* we are done mpeg of the longest interleaver xas not locking but let's try if an other layer has locked in the same time */
+ if (locks & (0x7 << 5)) {
+ dprintk("Not all ISDB-T layers locked in %d ms: Layer A %s, Layer B %s, Layer C %s",
+ jiffies_to_msecs(now - *timeout),
+ c->layer[0].segment_count ? (locks >> 7) & 0x1 ? "locked" : "NOT LOCKED" : "not enabled",
+ c->layer[1].segment_count ? (locks >> 6) & 0x1 ? "locked" : "NOT LOCKED" : "not enabled",
+ c->layer[2].segment_count ? (locks >> 5) & 0x1 ? "locked" : "NOT LOCKED" : "not enabled");
+
+ state->status = FE_STATUS_DATA_LOCKED;
+ } else
+ state->status = FE_STATUS_TUNE_FAILED;
+ *tune_state = CT_DEMOD_STOP;
+ }
+ }
+ break;
+
+ case CT_DEMOD_STEP_11: /* 41 : init prbs autosearch */
+ if (state->subchannel <= 41) {
+ dib8000_set_subchannel_prbs(state, dib8000_get_init_prbs(state, state->subchannel));
+ *tune_state = CT_DEMOD_STEP_9;
+ } else {
+ *tune_state = CT_DEMOD_STOP;
+ state->status = FE_STATUS_TUNE_FAILED;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ /* tuning is finished - cleanup the demod */
+ switch (*tune_state) {
+ case CT_DEMOD_STOP: /* (42) */
+#ifdef DIB8000_AGC_FREEZE
+ if ((state->revision != 0x8090) && (state->agc1_max != 0)) {
+ dib8000_write_word(state, 108, state->agc1_max);
+ dib8000_write_word(state, 109, state->agc1_min);
+ dib8000_write_word(state, 110, state->agc2_max);
+ dib8000_write_word(state, 111, state->agc2_min);
+ state->agc1_max = 0;
+ state->agc1_min = 0;
+ state->agc2_max = 0;
+ state->agc2_min = 0;
+ }
+#endif
+ ret = 0;
+ break;
+ default:
+ break;
+ }
+
+ if ((ret > 0) && (*tune_state > CT_DEMOD_STEP_3))
+ return ret * state->symbol_duration;
+ if ((ret > 0) && (ret < state->symbol_duration))
+ return state->symbol_duration; /* at least one symbol */
+ return ret;
+}
+
+static int dib8000_wakeup(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u8 index_frontend;
+ int ret;
+
+ dib8000_set_power_mode(state, DIB8000_POWER_ALL);
+ dib8000_set_adc_state(state, DIBX000_ADC_ON);
+ if (dib8000_set_adc_state(state, DIBX000_SLOW_ADC_ON) != 0)
+ dprintk("could not start Slow ADC");
+
+ if (state->revision == 0x8090)
+ dib8000_sad_calib(state);
+
+ for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+ ret = state->fe[index_frontend]->ops.init(state->fe[index_frontend]);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int dib8000_sleep(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u8 index_frontend;
+ int ret;
+
+ for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+ ret = state->fe[index_frontend]->ops.sleep(state->fe[index_frontend]);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (state->revision != 0x8090)
+ dib8000_set_output_mode(fe, OUTMODE_HIGH_Z);
+ dib8000_set_power_mode(state, DIB8000_POWER_INTERFACE_ONLY);
+ return dib8000_set_adc_state(state, DIBX000_SLOW_ADC_OFF) | dib8000_set_adc_state(state, DIBX000_ADC_OFF);
+}
+
+static int dib8000_read_status(struct dvb_frontend *fe, fe_status_t * stat);
+
+static int dib8000_get_frontend(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u16 i, val = 0;
+ fe_status_t stat = 0;
+ u8 index_frontend, sub_index_frontend;
+
+ fe->dtv_property_cache.bandwidth_hz = 6000000;
+
+ /*
+ * If called to early, get_frontend makes dib8000_tune to either
+ * not lock or not sync. This causes dvbv5-scan/dvbv5-zap to fail.
+ * So, let's just return if frontend 0 has not locked.
+ */
+ dib8000_read_status(fe, &stat);
+ if (!(stat & FE_HAS_SYNC))
+ return 0;
+
+ dprintk("dib8000_get_frontend: TMCC lock");
+ for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+ state->fe[index_frontend]->ops.read_status(state->fe[index_frontend], &stat);
+ if (stat&FE_HAS_SYNC) {
+ dprintk("TMCC lock on the slave%i", index_frontend);
+ /* synchronize the cache with the other frontends */
+ state->fe[index_frontend]->ops.get_frontend(state->fe[index_frontend]);
+ for (sub_index_frontend = 0; (sub_index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[sub_index_frontend] != NULL); sub_index_frontend++) {
+ if (sub_index_frontend != index_frontend) {
+ state->fe[sub_index_frontend]->dtv_property_cache.isdbt_sb_mode = state->fe[index_frontend]->dtv_property_cache.isdbt_sb_mode;
+ state->fe[sub_index_frontend]->dtv_property_cache.inversion = state->fe[index_frontend]->dtv_property_cache.inversion;
+ state->fe[sub_index_frontend]->dtv_property_cache.transmission_mode = state->fe[index_frontend]->dtv_property_cache.transmission_mode;
+ state->fe[sub_index_frontend]->dtv_property_cache.guard_interval = state->fe[index_frontend]->dtv_property_cache.guard_interval;
+ state->fe[sub_index_frontend]->dtv_property_cache.isdbt_partial_reception = state->fe[index_frontend]->dtv_property_cache.isdbt_partial_reception;
+ for (i = 0; i < 3; i++) {
+ state->fe[sub_index_frontend]->dtv_property_cache.layer[i].segment_count = state->fe[index_frontend]->dtv_property_cache.layer[i].segment_count;
+ state->fe[sub_index_frontend]->dtv_property_cache.layer[i].interleaving = state->fe[index_frontend]->dtv_property_cache.layer[i].interleaving;
+ state->fe[sub_index_frontend]->dtv_property_cache.layer[i].fec = state->fe[index_frontend]->dtv_property_cache.layer[i].fec;
+ state->fe[sub_index_frontend]->dtv_property_cache.layer[i].modulation = state->fe[index_frontend]->dtv_property_cache.layer[i].modulation;
+ }
+ }
+ }
+ return 0;
+ }
+ }
+
+ fe->dtv_property_cache.isdbt_sb_mode = dib8000_read_word(state, 508) & 0x1;
+
+ if (state->revision == 0x8090)
+ val = dib8000_read_word(state, 572);
+ else
+ val = dib8000_read_word(state, 570);
+ fe->dtv_property_cache.inversion = (val & 0x40) >> 6;
+ switch ((val & 0x30) >> 4) {
+ case 1:
+ fe->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_2K;
+ dprintk("dib8000_get_frontend: transmission mode 2K");
+ break;
+ case 2:
+ fe->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_4K;
+ dprintk("dib8000_get_frontend: transmission mode 4K");
+ break;
+ case 3:
+ default:
+ fe->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_8K;
+ dprintk("dib8000_get_frontend: transmission mode 8K");
+ break;
+ }
+
+ switch (val & 0x3) {
+ case 0:
+ fe->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_32;
+ dprintk("dib8000_get_frontend: Guard Interval = 1/32 ");
+ break;
+ case 1:
+ fe->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_16;
+ dprintk("dib8000_get_frontend: Guard Interval = 1/16 ");
+ break;
+ case 2:
+ dprintk("dib8000_get_frontend: Guard Interval = 1/8 ");
+ fe->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_8;
+ break;
+ case 3:
+ dprintk("dib8000_get_frontend: Guard Interval = 1/4 ");
+ fe->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_4;
+ break;
+ }
+
+ val = dib8000_read_word(state, 505);
+ fe->dtv_property_cache.isdbt_partial_reception = val & 1;
+ dprintk("dib8000_get_frontend: partial_reception = %d ", fe->dtv_property_cache.isdbt_partial_reception);
+
+ for (i = 0; i < 3; i++) {
+ int show;
+
+ val = dib8000_read_word(state, 493 + i) & 0x0f;
+ fe->dtv_property_cache.layer[i].segment_count = val;
+
+ if (val == 0 || val > 13)
+ show = 0;
+ else
+ show = 1;
+
+ if (show)
+ dprintk("dib8000_get_frontend: Layer %d segments = %d ",
+ i, fe->dtv_property_cache.layer[i].segment_count);
+
+ val = dib8000_read_word(state, 499 + i) & 0x3;
+ /* Interleaving can be 0, 1, 2 or 4 */
+ if (val == 3)
+ val = 4;
+ fe->dtv_property_cache.layer[i].interleaving = val;
+ if (show)
+ dprintk("dib8000_get_frontend: Layer %d time_intlv = %d ",
+ i, fe->dtv_property_cache.layer[i].interleaving);
+
+ val = dib8000_read_word(state, 481 + i);
+ switch (val & 0x7) {
+ case 1:
+ fe->dtv_property_cache.layer[i].fec = FEC_1_2;
+ if (show)
+ dprintk("dib8000_get_frontend: Layer %d Code Rate = 1/2 ", i);
+ break;
+ case 2:
+ fe->dtv_property_cache.layer[i].fec = FEC_2_3;
+ if (show)
+ dprintk("dib8000_get_frontend: Layer %d Code Rate = 2/3 ", i);
+ break;
+ case 3:
+ fe->dtv_property_cache.layer[i].fec = FEC_3_4;
+ if (show)
+ dprintk("dib8000_get_frontend: Layer %d Code Rate = 3/4 ", i);
+ break;
+ case 5:
+ fe->dtv_property_cache.layer[i].fec = FEC_5_6;
+ if (show)
+ dprintk("dib8000_get_frontend: Layer %d Code Rate = 5/6 ", i);
+ break;
+ default:
+ fe->dtv_property_cache.layer[i].fec = FEC_7_8;
+ if (show)
+ dprintk("dib8000_get_frontend: Layer %d Code Rate = 7/8 ", i);
+ break;
+ }
+
+ val = dib8000_read_word(state, 487 + i);
+ switch (val & 0x3) {
+ case 0:
+ fe->dtv_property_cache.layer[i].modulation = DQPSK;
+ if (show)
+ dprintk("dib8000_get_frontend: Layer %d DQPSK ", i);
+ break;
+ case 1:
+ fe->dtv_property_cache.layer[i].modulation = QPSK;
+ if (show)
+ dprintk("dib8000_get_frontend: Layer %d QPSK ", i);
+ break;
+ case 2:
+ fe->dtv_property_cache.layer[i].modulation = QAM_16;
+ if (show)
+ dprintk("dib8000_get_frontend: Layer %d QAM16 ", i);
+ break;
+ case 3:
+ default:
+ fe->dtv_property_cache.layer[i].modulation = QAM_64;
+ if (show)
+ dprintk("dib8000_get_frontend: Layer %d QAM64 ", i);
+ break;
+ }
+ }
+
+ /* synchronize the cache with the other frontends */
+ for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+ state->fe[index_frontend]->dtv_property_cache.isdbt_sb_mode = fe->dtv_property_cache.isdbt_sb_mode;
+ state->fe[index_frontend]->dtv_property_cache.inversion = fe->dtv_property_cache.inversion;
+ state->fe[index_frontend]->dtv_property_cache.transmission_mode = fe->dtv_property_cache.transmission_mode;
+ state->fe[index_frontend]->dtv_property_cache.guard_interval = fe->dtv_property_cache.guard_interval;
+ state->fe[index_frontend]->dtv_property_cache.isdbt_partial_reception = fe->dtv_property_cache.isdbt_partial_reception;
+ for (i = 0; i < 3; i++) {
+ state->fe[index_frontend]->dtv_property_cache.layer[i].segment_count = fe->dtv_property_cache.layer[i].segment_count;
+ state->fe[index_frontend]->dtv_property_cache.layer[i].interleaving = fe->dtv_property_cache.layer[i].interleaving;
+ state->fe[index_frontend]->dtv_property_cache.layer[i].fec = fe->dtv_property_cache.layer[i].fec;
+ state->fe[index_frontend]->dtv_property_cache.layer[i].modulation = fe->dtv_property_cache.layer[i].modulation;
+ }
+ }
+ return 0;
+}
+
+static int dib8000_set_frontend(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+ int l, i, active, time, time_slave = 0;
+ u8 exit_condition, index_frontend;
+ unsigned long delay, callback_time;
+
+ if (c->frequency == 0) {
+ dprintk("dib8000: must at least specify frequency ");
+ return 0;
+ }
+
+ if (c->bandwidth_hz == 0) {
+ dprintk("dib8000: no bandwidth specified, set to default ");
+ c->bandwidth_hz = 6000000;
+ }
+
+ for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+ /* synchronization of the cache */
+ state->fe[index_frontend]->dtv_property_cache.delivery_system = SYS_ISDBT;
+ memcpy(&state->fe[index_frontend]->dtv_property_cache, &fe->dtv_property_cache, sizeof(struct dtv_frontend_properties));
+
+ /* set output mode and diversity input */
+ if (state->revision != 0x8090) {
+ dib8000_set_diversity_in(state->fe[index_frontend], 1);
+ if (index_frontend != 0)
+ dib8000_set_output_mode(state->fe[index_frontend],
+ OUTMODE_DIVERSITY);
+ else
+ dib8000_set_output_mode(state->fe[0], OUTMODE_HIGH_Z);
+ } else {
+ dib8096p_set_diversity_in(state->fe[index_frontend], 1);
+ if (index_frontend != 0)
+ dib8096p_set_output_mode(state->fe[index_frontend],
+ OUTMODE_DIVERSITY);
+ else
+ dib8096p_set_output_mode(state->fe[0], OUTMODE_HIGH_Z);
+ }
+
+ /* tune the tuner */
+ if (state->fe[index_frontend]->ops.tuner_ops.set_params)
+ state->fe[index_frontend]->ops.tuner_ops.set_params(state->fe[index_frontend]);
+
+ dib8000_set_tune_state(state->fe[index_frontend], CT_AGC_START);
+ }
+
+ /* turn off the diversity of the last chip */
+ if (state->revision != 0x8090)
+ dib8000_set_diversity_in(state->fe[index_frontend - 1], 0);
+ else
+ dib8096p_set_diversity_in(state->fe[index_frontend - 1], 0);
+
+ /* start up the AGC */
+ do {
+ time = dib8000_agc_startup(state->fe[0]);
+ for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+ time_slave = dib8000_agc_startup(state->fe[index_frontend]);
+ if (time == 0)
+ time = time_slave;
+ else if ((time_slave != 0) && (time_slave > time))
+ time = time_slave;
+ }
+ if (time == 0)
+ break;
+
+ /*
+ * Despite dib8000_agc_startup returns time at a 0.1 ms range,
+ * the actual sleep time depends on CONFIG_HZ. The worse case
+ * is when CONFIG_HZ=100. In such case, the minimum granularity
+ * is 10ms. On some real field tests, the tuner sometimes don't
+ * lock when this timer is lower than 10ms. So, enforce a 10ms
+ * granularity.
+ */
+ time = 10 * (time + 99)/100;
+ usleep_range(time * 1000, (time + 1) * 1000);
+ exit_condition = 1;
+ for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+ if (dib8000_get_tune_state(state->fe[index_frontend]) != CT_AGC_STOP) {
+ exit_condition = 0;
+ break;
+ }
+ }
+ } while (exit_condition == 0);
+
+ for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
+ dib8000_set_tune_state(state->fe[index_frontend], CT_DEMOD_START);
+
+ active = 1;
+ do {
+ callback_time = 0;
+ for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+ delay = dib8000_tune(state->fe[index_frontend]);
+ if (delay != 0) {
+ delay = jiffies + usecs_to_jiffies(100 * delay);
+ if (!callback_time || delay < callback_time)
+ callback_time = delay;
+ }
+
+ /* we are in autosearch */
+ if (state->channel_parameters_set == 0) { /* searching */
+ if ((dib8000_get_status(state->fe[index_frontend]) == FE_STATUS_DEMOD_SUCCESS) || (dib8000_get_status(state->fe[index_frontend]) == FE_STATUS_FFT_SUCCESS)) {
+ dprintk("autosearch succeeded on fe%i", index_frontend);
+ dib8000_get_frontend(state->fe[index_frontend]); /* we read the channel parameters from the frontend which was successful */
+ state->channel_parameters_set = 1;
+
+ for (l = 0; (l < MAX_NUMBER_OF_FRONTENDS) && (state->fe[l] != NULL); l++) {
+ if (l != index_frontend) { /* and for all frontend except the successful one */
+ dprintk("Restarting frontend %d\n", l);
+ dib8000_tune_restart_from_demod(state->fe[l]);
+
+ state->fe[l]->dtv_property_cache.isdbt_sb_mode = state->fe[index_frontend]->dtv_property_cache.isdbt_sb_mode;
+ state->fe[l]->dtv_property_cache.inversion = state->fe[index_frontend]->dtv_property_cache.inversion;
+ state->fe[l]->dtv_property_cache.transmission_mode = state->fe[index_frontend]->dtv_property_cache.transmission_mode;
+ state->fe[l]->dtv_property_cache.guard_interval = state->fe[index_frontend]->dtv_property_cache.guard_interval;
+ state->fe[l]->dtv_property_cache.isdbt_partial_reception = state->fe[index_frontend]->dtv_property_cache.isdbt_partial_reception;
+ for (i = 0; i < 3; i++) {
+ state->fe[l]->dtv_property_cache.layer[i].segment_count = state->fe[index_frontend]->dtv_property_cache.layer[i].segment_count;
+ state->fe[l]->dtv_property_cache.layer[i].interleaving = state->fe[index_frontend]->dtv_property_cache.layer[i].interleaving;
+ state->fe[l]->dtv_property_cache.layer[i].fec = state->fe[index_frontend]->dtv_property_cache.layer[i].fec;
+ state->fe[l]->dtv_property_cache.layer[i].modulation = state->fe[index_frontend]->dtv_property_cache.layer[i].modulation;
+ }
+
+ }
+ }
+ }
+ }
+ }
+ /* tuning is done when the master frontend is done (failed or success) */
+ if (dib8000_get_status(state->fe[0]) == FE_STATUS_TUNE_FAILED ||
+ dib8000_get_status(state->fe[0]) == FE_STATUS_LOCKED ||
+ dib8000_get_status(state->fe[0]) == FE_STATUS_DATA_LOCKED) {
+ active = 0;
+ /* we need to wait for all frontends to be finished */
+ for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+ if (dib8000_get_tune_state(state->fe[index_frontend]) != CT_DEMOD_STOP)
+ active = 1;
+ }
+ if (active == 0)
+ dprintk("tuning done with status %d", dib8000_get_status(state->fe[0]));
+ }
+
+ if ((active == 1) && (callback_time == 0)) {
+ dprintk("strange callback time something went wrong");
+ active = 0;
+ }
+
+ while ((active == 1) && (time_before(jiffies, callback_time)))
+ msleep(100);
+ } while (active);
+
+ /* set output mode */
+ if (state->revision != 0x8090)
+ dib8000_set_output_mode(state->fe[0], state->cfg.output_mode);
+ else {
+ dib8096p_set_output_mode(state->fe[0], state->cfg.output_mode);
+ if (state->cfg.enMpegOutput == 0) {
+ dib8096p_setDibTxMux(state, MPEG_ON_DIBTX);
+ dib8096p_setHostBusMux(state, DIBTX_ON_HOSTBUS);
+ }
+ }
+
+ return 0;
+}
+
+static int dib8000_get_stats(struct dvb_frontend *fe, fe_status_t stat);
+
+static int dib8000_read_status(struct dvb_frontend *fe, fe_status_t * stat)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u16 lock_slave = 0, lock;
+ u8 index_frontend;
+
+ lock = dib8000_read_lock(fe);
+ for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
+ lock_slave |= dib8000_read_lock(state->fe[index_frontend]);
+
+ *stat = 0;
+
+ if (((lock >> 13) & 1) || ((lock_slave >> 13) & 1))
+ *stat |= FE_HAS_SIGNAL;
+
+ if (((lock >> 8) & 1) || ((lock_slave >> 8) & 1)) /* Equal */
+ *stat |= FE_HAS_CARRIER;
+
+ if ((((lock >> 1) & 0xf) == 0xf) || (((lock_slave >> 1) & 0xf) == 0xf)) /* TMCC_SYNC */
+ *stat |= FE_HAS_SYNC;
+
+ if ((((lock >> 12) & 1) || ((lock_slave >> 12) & 1)) && ((lock >> 5) & 7)) /* FEC MPEG */
+ *stat |= FE_HAS_LOCK;
+
+ if (((lock >> 12) & 1) || ((lock_slave >> 12) & 1)) {
+ lock = dib8000_read_word(state, 554); /* Viterbi Layer A */
+ if (lock & 0x01)
+ *stat |= FE_HAS_VITERBI;
+
+ lock = dib8000_read_word(state, 555); /* Viterbi Layer B */
+ if (lock & 0x01)
+ *stat |= FE_HAS_VITERBI;
+
+ lock = dib8000_read_word(state, 556); /* Viterbi Layer C */
+ if (lock & 0x01)
+ *stat |= FE_HAS_VITERBI;
+ }
+ dib8000_get_stats(fe, *stat);
+
+ return 0;
+}
+
+static int dib8000_read_ber(struct dvb_frontend *fe, u32 * ber)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+
+ /* 13 segments */
+ if (state->revision == 0x8090)
+ *ber = (dib8000_read_word(state, 562) << 16) |
+ dib8000_read_word(state, 563);
+ else
+ *ber = (dib8000_read_word(state, 560) << 16) |
+ dib8000_read_word(state, 561);
+ return 0;
+}
+
+static int dib8000_read_unc_blocks(struct dvb_frontend *fe, u32 * unc)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+
+ /* packet error on 13 seg */
+ if (state->revision == 0x8090)
+ *unc = dib8000_read_word(state, 567);
+ else
+ *unc = dib8000_read_word(state, 565);
+ return 0;
+}
+
+static int dib8000_read_signal_strength(struct dvb_frontend *fe, u16 * strength)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u8 index_frontend;
+ u16 val;
+
+ *strength = 0;
+ for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+ state->fe[index_frontend]->ops.read_signal_strength(state->fe[index_frontend], &val);
+ if (val > 65535 - *strength)
+ *strength = 65535;
+ else
+ *strength += val;
+ }
+
+ val = 65535 - dib8000_read_word(state, 390);
+ if (val > 65535 - *strength)
+ *strength = 65535;
+ else
+ *strength += val;
+ return 0;
+}
+
+static u32 dib8000_get_snr(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u32 n, s, exp;
+ u16 val;
+
+ if (state->revision != 0x8090)
+ val = dib8000_read_word(state, 542);
+ else
+ val = dib8000_read_word(state, 544);
+ n = (val >> 6) & 0xff;
+ exp = (val & 0x3f);
+ if ((exp & 0x20) != 0)
+ exp -= 0x40;
+ n <<= exp+16;
+
+ if (state->revision != 0x8090)
+ val = dib8000_read_word(state, 543);
+ else
+ val = dib8000_read_word(state, 545);
+ s = (val >> 6) & 0xff;
+ exp = (val & 0x3f);
+ if ((exp & 0x20) != 0)
+ exp -= 0x40;
+ s <<= exp+16;
+
+ if (n > 0) {
+ u32 t = (s/n) << 16;
+ return t + ((s << 16) - n*t) / n;
+ }
+ return 0xffffffff;
+}
+
+static int dib8000_read_snr(struct dvb_frontend *fe, u16 * snr)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u8 index_frontend;
+ u32 snr_master;
+
+ snr_master = dib8000_get_snr(fe);
+ for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
+ snr_master += dib8000_get_snr(state->fe[index_frontend]);
+
+ if ((snr_master >> 16) != 0) {
+ snr_master = 10*intlog10(snr_master>>16);
+ *snr = snr_master / ((1 << 24) / 10);
+ }
+ else
+ *snr = 0;
+
+ return 0;
+}
+
+struct per_layer_regs {
+ u16 lock, ber, per;
+};
+
+static const struct per_layer_regs per_layer_regs[] = {
+ { 554, 560, 562 },
+ { 555, 576, 578 },
+ { 556, 581, 583 },
+};
+
+struct linear_segments {
+ unsigned x;
+ signed y;
+};
+
+/*
+ * Table to estimate signal strength in dBm.
+ * This table was empirically determinated by measuring the signal
+ * strength generated by a DTA-2111 RF generator directly connected into
+ * a dib8076 device (a PixelView PV-D231U stick), using a good quality
+ * 3 meters RC6 cable and good RC6 connectors.
+ * The real value can actually be different on other devices, depending
+ * on several factors, like if LNA is enabled or not, if diversity is
+ * enabled, type of connectors, etc.
+ * Yet, it is better to use this measure in dB than a random non-linear
+ * percentage value, especially for antenna adjustments.
+ * On my tests, the precision of the measure using this table is about
+ * 0.5 dB, with sounds reasonable enough.
+ */
+static struct linear_segments strength_to_db_table[] = {
+ { 55953, 108500 }, /* -22.5 dBm */
+ { 55394, 108000 },
+ { 53834, 107000 },
+ { 52863, 106000 },
+ { 52239, 105000 },
+ { 52012, 104000 },
+ { 51803, 103000 },
+ { 51566, 102000 },
+ { 51356, 101000 },
+ { 51112, 100000 },
+ { 50869, 99000 },
+ { 50600, 98000 },
+ { 50363, 97000 },
+ { 50117, 96000 }, /* -35 dBm */
+ { 49889, 95000 },
+ { 49680, 94000 },
+ { 49493, 93000 },
+ { 49302, 92000 },
+ { 48929, 91000 },
+ { 48416, 90000 },
+ { 48035, 89000 },
+ { 47593, 88000 },
+ { 47282, 87000 },
+ { 46953, 86000 },
+ { 46698, 85000 },
+ { 45617, 84000 },
+ { 44773, 83000 },
+ { 43845, 82000 },
+ { 43020, 81000 },
+ { 42010, 80000 }, /* -51 dBm */
+ { 0, 0 },
+};
+
+static u32 interpolate_value(u32 value, struct linear_segments *segments,
+ unsigned len)
+{
+ u64 tmp64;
+ u32 dx;
+ s32 dy;
+ int i, ret;
+
+ if (value >= segments[0].x)
+ return segments[0].y;
+ if (value < segments[len-1].x)
+ return segments[len-1].y;
+
+ for (i = 1; i < len - 1; i++) {
+ /* If value is identical, no need to interpolate */
+ if (value == segments[i].x)
+ return segments[i].y;
+ if (value > segments[i].x)
+ break;
+ }
+
+ /* Linear interpolation between the two (x,y) points */
+ dy = segments[i - 1].y - segments[i].y;
+ dx = segments[i - 1].x - segments[i].x;
+
+ tmp64 = value - segments[i].x;
+ tmp64 *= dy;
+ do_div(tmp64, dx);
+ ret = segments[i].y + tmp64;
+
+ return ret;
+}
+
+static u32 dib8000_get_time_us(struct dvb_frontend *fe, int layer)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+ int ini_layer, end_layer, i;
+ u64 time_us, tmp64;
+ u32 tmp, denom;
+ int guard, rate_num, rate_denum = 1, bits_per_symbol, nsegs;
+ int interleaving = 0, fft_div;
+
+ if (layer >= 0) {
+ ini_layer = layer;
+ end_layer = layer + 1;
+ } else {
+ ini_layer = 0;
+ end_layer = 3;
+ }
+
+ switch (c->guard_interval) {
+ case GUARD_INTERVAL_1_4:
+ guard = 4;
+ break;
+ case GUARD_INTERVAL_1_8:
+ guard = 8;
+ break;
+ case GUARD_INTERVAL_1_16:
+ guard = 16;
+ break;
+ default:
+ case GUARD_INTERVAL_1_32:
+ guard = 32;
+ break;
+ }
+
+ switch (c->transmission_mode) {
+ case TRANSMISSION_MODE_2K:
+ fft_div = 4;
+ break;
+ case TRANSMISSION_MODE_4K:
+ fft_div = 2;
+ break;
+ default:
+ case TRANSMISSION_MODE_8K:
+ fft_div = 1;
+ break;
+ }
+
+ denom = 0;
+ for (i = ini_layer; i < end_layer; i++) {
+ nsegs = c->layer[i].segment_count;
+ if (nsegs == 0 || nsegs > 13)
+ continue;
+
+ switch (c->layer[i].modulation) {
+ case DQPSK:
+ case QPSK:
+ bits_per_symbol = 2;
+ break;
+ case QAM_16:
+ bits_per_symbol = 4;
+ break;
+ default:
+ case QAM_64:
+ bits_per_symbol = 6;
+ break;
+ }
+
+ switch (c->layer[i].fec) {
+ case FEC_1_2:
+ rate_num = 1;
+ rate_denum = 2;
+ break;
+ case FEC_2_3:
+ rate_num = 2;
+ rate_denum = 3;
+ break;
+ case FEC_3_4:
+ rate_num = 3;
+ rate_denum = 4;
+ break;
+ case FEC_5_6:
+ rate_num = 5;
+ rate_denum = 6;
+ break;
+ default:
+ case FEC_7_8:
+ rate_num = 7;
+ rate_denum = 8;
+ break;
+ }
+
+ interleaving = c->layer[i].interleaving;
+
+ denom += bits_per_symbol * rate_num * fft_div * nsegs * 384;
+ }
+
+ /* If all goes wrong, wait for 1s for the next stats */
+ if (!denom)
+ return 0;
+
+ /* Estimate the period for the total bit rate */
+ time_us = rate_denum * (1008 * 1562500L);
+ tmp64 = time_us;
+ do_div(tmp64, guard);
+ time_us = time_us + tmp64;
+ time_us += denom / 2;
+ do_div(time_us, denom);
+
+ tmp = 1008 * 96 * interleaving;
+ time_us += tmp + tmp / guard;
+
+ return time_us;
+}
+
+static int dib8000_get_stats(struct dvb_frontend *fe, fe_status_t stat)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
+ int i;
+ int show_per_stats = 0;
+ u32 time_us = 0, snr, val;
+ u64 blocks;
+ s32 db;
+ u16 strength;
+
+ /* Get Signal strength */
+ dib8000_read_signal_strength(fe, &strength);
+ val = strength;
+ db = interpolate_value(val,
+ strength_to_db_table,
+ ARRAY_SIZE(strength_to_db_table)) - 131000;
+ c->strength.stat[0].svalue = db;
+
+ /* UCB/BER/CNR measures require lock */
+ if (!(stat & FE_HAS_LOCK)) {
+ c->cnr.len = 1;
+ c->block_count.len = 1;
+ c->block_error.len = 1;
+ c->post_bit_error.len = 1;
+ c->post_bit_count.len = 1;
+ c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ return 0;
+ }
+
+ /* Check if time for stats was elapsed */
+ if (time_after(jiffies, state->per_jiffies_stats)) {
+ state->per_jiffies_stats = jiffies + msecs_to_jiffies(1000);
+
+ /* Get SNR */
+ snr = dib8000_get_snr(fe);
+ for (i = 1; i < MAX_NUMBER_OF_FRONTENDS; i++) {
+ if (state->fe[i])
+ snr += dib8000_get_snr(state->fe[i]);
+ }
+ snr = snr >> 16;
+
+ if (snr) {
+ snr = 10 * intlog10(snr);
+ snr = (1000L * snr) >> 24;
+ } else {
+ snr = 0;
+ }
+ c->cnr.stat[0].svalue = snr;
+ c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
+
+ /* Get UCB measures */
+ dib8000_read_unc_blocks(fe, &val);
+ if (val < state->init_ucb)
+ state->init_ucb += 0x100000000LL;
+
+ c->block_error.stat[0].scale = FE_SCALE_COUNTER;
+ c->block_error.stat[0].uvalue = val + state->init_ucb;
+
+ /* Estimate the number of packets based on bitrate */
+ if (!time_us)
+ time_us = dib8000_get_time_us(fe, -1);
+
+ if (time_us) {
+ blocks = 1250000ULL * 1000000ULL;
+ do_div(blocks, time_us * 8 * 204);
+ c->block_count.stat[0].scale = FE_SCALE_COUNTER;
+ c->block_count.stat[0].uvalue += blocks;
+ }
+
+ show_per_stats = 1;
+ }
+
+ /* Get post-BER measures */
+ if (time_after(jiffies, state->ber_jiffies_stats)) {
+ time_us = dib8000_get_time_us(fe, -1);
+ state->ber_jiffies_stats = jiffies + msecs_to_jiffies((time_us + 500) / 1000);
+
+ dprintk("Next all layers stats available in %u us.", time_us);
+
+ dib8000_read_ber(fe, &val);
+ c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+ c->post_bit_error.stat[0].uvalue += val;
+
+ c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
+ c->post_bit_count.stat[0].uvalue += 100000000;
+ }
+
+ if (state->revision < 0x8002)
+ return 0;
+
+ c->block_error.len = 4;
+ c->post_bit_error.len = 4;
+ c->post_bit_count.len = 4;
+
+ for (i = 0; i < 3; i++) {
+ unsigned nsegs = c->layer[i].segment_count;
+
+ if (nsegs == 0 || nsegs > 13)
+ continue;
+
+ time_us = 0;
+
+ if (time_after(jiffies, state->ber_jiffies_stats_layer[i])) {
+ time_us = dib8000_get_time_us(fe, i);
+
+ state->ber_jiffies_stats_layer[i] = jiffies + msecs_to_jiffies((time_us + 500) / 1000);
+ dprintk("Next layer %c stats will be available in %u us\n",
+ 'A' + i, time_us);
+
+ val = dib8000_read_word(state, per_layer_regs[i].ber);
+ c->post_bit_error.stat[1 + i].scale = FE_SCALE_COUNTER;
+ c->post_bit_error.stat[1 + i].uvalue += val;
+
+ c->post_bit_count.stat[1 + i].scale = FE_SCALE_COUNTER;
+ c->post_bit_count.stat[1 + i].uvalue += 100000000;
+ }
+
+ if (show_per_stats) {
+ val = dib8000_read_word(state, per_layer_regs[i].per);
+
+ c->block_error.stat[1 + i].scale = FE_SCALE_COUNTER;
+ c->block_error.stat[1 + i].uvalue += val;
+
+ if (!time_us)
+ time_us = dib8000_get_time_us(fe, i);
+ if (time_us) {
+ blocks = 1250000ULL * 1000000ULL;
+ do_div(blocks, time_us * 8 * 204);
+ c->block_count.stat[0].scale = FE_SCALE_COUNTER;
+ c->block_count.stat[0].uvalue += blocks;
+ }
+ }
+ }
+ return 0;
+}
+
+static int dib8000_set_slave_frontend(struct dvb_frontend *fe, struct dvb_frontend *fe_slave)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u8 index_frontend = 1;
+
+ while ((index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL))
+ index_frontend++;
+ if (index_frontend < MAX_NUMBER_OF_FRONTENDS) {
+ dprintk("set slave fe %p to index %i", fe_slave, index_frontend);
+ state->fe[index_frontend] = fe_slave;
+ return 0;
+ }
+
+ dprintk("too many slave frontend");
+ return -ENOMEM;
+}
+
+static int dib8000_remove_slave_frontend(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ u8 index_frontend = 1;
+
+ while ((index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL))
+ index_frontend++;
+ if (index_frontend != 1) {
+ dprintk("remove slave fe %p (index %i)", state->fe[index_frontend-1], index_frontend-1);
+ state->fe[index_frontend] = NULL;
+ return 0;
+ }
+
+ dprintk("no frontend to be removed");
+ return -ENODEV;
+}
+
+static struct dvb_frontend *dib8000_get_slave_frontend(struct dvb_frontend *fe, int slave_index)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+
+ if (slave_index >= MAX_NUMBER_OF_FRONTENDS)
+ return NULL;
+ return state->fe[slave_index];
+}
+
+static int dib8000_i2c_enumeration(struct i2c_adapter *host, int no_of_demods,
+ u8 default_addr, u8 first_addr, u8 is_dib8096p)
+{
+ int k = 0, ret = 0;
+ u8 new_addr = 0;
+ struct i2c_device client = {.adap = host };
+
+ client.i2c_write_buffer = kzalloc(4 * sizeof(u8), GFP_KERNEL);
+ if (!client.i2c_write_buffer) {
+ dprintk("%s: not enough memory", __func__);
+ return -ENOMEM;
+ }
+ client.i2c_read_buffer = kzalloc(4 * sizeof(u8), GFP_KERNEL);
+ if (!client.i2c_read_buffer) {
+ dprintk("%s: not enough memory", __func__);
+ ret = -ENOMEM;
+ goto error_memory_read;
+ }
+ client.i2c_buffer_lock = kzalloc(sizeof(struct mutex), GFP_KERNEL);
+ if (!client.i2c_buffer_lock) {
+ dprintk("%s: not enough memory", __func__);
+ ret = -ENOMEM;
+ goto error_memory_lock;
+ }
+ mutex_init(client.i2c_buffer_lock);
+
+ for (k = no_of_demods - 1; k >= 0; k--) {
+ /* designated i2c address */
+ new_addr = first_addr + (k << 1);
+
+ client.addr = new_addr;
+ if (!is_dib8096p)
+ dib8000_i2c_write16(&client, 1287, 0x0003); /* sram lead in, rdy */
+ if (dib8000_identify(&client) == 0) {
+ /* sram lead in, rdy */
+ if (!is_dib8096p)
+ dib8000_i2c_write16(&client, 1287, 0x0003);
+ client.addr = default_addr;
+ if (dib8000_identify(&client) == 0) {
+ dprintk("#%d: not identified", k);
+ ret = -EINVAL;
+ goto error;
+ }
+ }
+
+ /* start diversity to pull_down div_str - just for i2c-enumeration */
+ dib8000_i2c_write16(&client, 1286, (1 << 10) | (4 << 6));
+
+ /* set new i2c address and force divstart */
+ dib8000_i2c_write16(&client, 1285, (new_addr << 2) | 0x2);
+ client.addr = new_addr;
+ dib8000_identify(&client);
+
+ dprintk("IC %d initialized (to i2c_address 0x%x)", k, new_addr);
+ }
+
+ for (k = 0; k < no_of_demods; k++) {
+ new_addr = first_addr | (k << 1);
+ client.addr = new_addr;
+
+ // unforce divstr
+ dib8000_i2c_write16(&client, 1285, new_addr << 2);
+
+ /* deactivate div - it was just for i2c-enumeration */
+ dib8000_i2c_write16(&client, 1286, 0);
+ }
+
+error:
+ kfree(client.i2c_buffer_lock);
+error_memory_lock:
+ kfree(client.i2c_read_buffer);
+error_memory_read:
+ kfree(client.i2c_write_buffer);
+
+ return ret;
+}
+
+static int dib8000_fe_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *tune)
+{
+ tune->min_delay_ms = 1000;
+ tune->step_size = 0;
+ tune->max_drift = 0;
+ return 0;
+}
+
+static void dib8000_release(struct dvb_frontend *fe)
+{
+ struct dib8000_state *st = fe->demodulator_priv;
+ u8 index_frontend;
+
+ for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (st->fe[index_frontend] != NULL); index_frontend++)
+ dvb_frontend_detach(st->fe[index_frontend]);
+
+ dibx000_exit_i2c_master(&st->i2c_master);
+ i2c_del_adapter(&st->dib8096p_tuner_adap);
+ kfree(st->fe[0]);
+ kfree(st);
+}
+
+static struct i2c_adapter *dib8000_get_i2c_master(struct dvb_frontend *fe, enum dibx000_i2c_interface intf, int gating)
+{
+ struct dib8000_state *st = fe->demodulator_priv;
+ return dibx000_get_i2c_adapter(&st->i2c_master, intf, gating);
+}
+
+static int dib8000_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff)
+{
+ struct dib8000_state *st = fe->demodulator_priv;
+ u16 val = dib8000_read_word(st, 299) & 0xffef;
+ val |= (onoff & 0x1) << 4;
+
+ dprintk("pid filter enabled %d", onoff);
+ return dib8000_write_word(st, 299, val);
+}
+
+static int dib8000_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff)
+{
+ struct dib8000_state *st = fe->demodulator_priv;
+ dprintk("Index %x, PID %d, OnOff %d", id, pid, onoff);
+ return dib8000_write_word(st, 305 + id, onoff ? (1 << 13) | pid : 0);
+}
+
+static const struct dvb_frontend_ops dib8000_ops = {
+ .delsys = { SYS_ISDBT },
+ .info = {
+ .name = "DiBcom 8000 ISDB-T",
+ .frequency_min = 44250000,
+ .frequency_max = 867250000,
+ .frequency_stepsize = 62500,
+ .caps = FE_CAN_INVERSION_AUTO |
+ FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+ FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
+ FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
+ FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_RECOVER | FE_CAN_HIERARCHY_AUTO,
+ },
+
+ .release = dib8000_release,
+
+ .init = dib8000_wakeup,
+ .sleep = dib8000_sleep,
+
+ .set_frontend = dib8000_set_frontend,
+ .get_tune_settings = dib8000_fe_get_tune_settings,
+ .get_frontend = dib8000_get_frontend,
+
+ .read_status = dib8000_read_status,
+ .read_ber = dib8000_read_ber,
+ .read_signal_strength = dib8000_read_signal_strength,
+ .read_snr = dib8000_read_snr,
+ .read_ucblocks = dib8000_read_unc_blocks,
+};
+
+static struct dvb_frontend *dib8000_init(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib8000_config *cfg)
+{
+ struct dvb_frontend *fe;
+ struct dib8000_state *state;
+
+ dprintk("dib8000_init");
+
+ state = kzalloc(sizeof(struct dib8000_state), GFP_KERNEL);
+ if (state == NULL)
+ return NULL;
+ fe = kzalloc(sizeof(struct dvb_frontend), GFP_KERNEL);
+ if (fe == NULL)
+ goto error;
+
+ memcpy(&state->cfg, cfg, sizeof(struct dib8000_config));
+ state->i2c.adap = i2c_adap;
+ state->i2c.addr = i2c_addr;
+ state->i2c.i2c_write_buffer = state->i2c_write_buffer;
+ state->i2c.i2c_read_buffer = state->i2c_read_buffer;
+ mutex_init(&state->i2c_buffer_lock);
+ state->i2c.i2c_buffer_lock = &state->i2c_buffer_lock;
+ state->gpio_val = cfg->gpio_val;
+ state->gpio_dir = cfg->gpio_dir;
+
+ /* Ensure the output mode remains at the previous default if it's
+ * not specifically set by the caller.
+ */
+ if ((state->cfg.output_mode != OUTMODE_MPEG2_SERIAL) && (state->cfg.output_mode != OUTMODE_MPEG2_PAR_GATED_CLK))
+ state->cfg.output_mode = OUTMODE_MPEG2_FIFO;
+
+ state->fe[0] = fe;
+ fe->demodulator_priv = state;
+ memcpy(&state->fe[0]->ops, &dib8000_ops, sizeof(struct dvb_frontend_ops));
+
+ state->timf_default = cfg->pll->timf;
+
+ if (dib8000_identify(&state->i2c) == 0)
+ goto error;
+
+ dibx000_init_i2c_master(&state->i2c_master, DIB8000, state->i2c.adap, state->i2c.addr);
+
+ /* init 8096p tuner adapter */
+ strncpy(state->dib8096p_tuner_adap.name, "DiB8096P tuner interface",
+ sizeof(state->dib8096p_tuner_adap.name));
+ state->dib8096p_tuner_adap.algo = &dib8096p_tuner_xfer_algo;
+ state->dib8096p_tuner_adap.algo_data = NULL;
+ state->dib8096p_tuner_adap.dev.parent = state->i2c.adap->dev.parent;
+ i2c_set_adapdata(&state->dib8096p_tuner_adap, state);
+ i2c_add_adapter(&state->dib8096p_tuner_adap);
+
+ dib8000_reset(fe);
+
+ dib8000_write_word(state, 285, (dib8000_read_word(state, 285) & ~0x60) | (3 << 5)); /* ber_rs_len = 3 */
+ state->current_demod_bw = 6000;
+
+ return fe;
+
+error:
+ kfree(state);
+ return NULL;
+}
+
+void *dib8000_attach(struct dib8000_ops *ops)
+{
+ if (!ops)
+ return NULL;
+
+ ops->pwm_agc_reset = dib8000_pwm_agc_reset;
+ ops->get_dc_power = dib8090p_get_dc_power;
+ ops->set_gpio = dib8000_set_gpio;
+ ops->get_slave_frontend = dib8000_get_slave_frontend;
+ ops->set_tune_state = dib8000_set_tune_state;
+ ops->pid_filter_ctrl = dib8000_pid_filter_ctrl;
+ ops->remove_slave_frontend = dib8000_remove_slave_frontend;
+ ops->get_adc_power = dib8000_get_adc_power;
+ ops->update_pll = dib8000_update_pll;
+ ops->tuner_sleep = dib8096p_tuner_sleep;
+ ops->get_tune_state = dib8000_get_tune_state;
+ ops->get_i2c_tuner = dib8096p_get_i2c_tuner;
+ ops->set_slave_frontend = dib8000_set_slave_frontend;
+ ops->pid_filter = dib8000_pid_filter;
+ ops->ctrl_timf = dib8000_ctrl_timf;
+ ops->init = dib8000_init;
+ ops->get_i2c_master = dib8000_get_i2c_master;
+ ops->i2c_enumeration = dib8000_i2c_enumeration;
+ ops->set_wbd_ref = dib8000_set_wbd_ref;
+
+ return ops;
+}
+EXPORT_SYMBOL(dib8000_attach);
+
+MODULE_AUTHOR("Olivier Grenie <Olivier.Grenie@dibcom.fr, " "Patrick Boettcher <pboettcher@dibcom.fr>");
+MODULE_DESCRIPTION("Driver for the DiBcom 8000 ISDB-T demodulator");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-17 03:20:58 +0000