diff options
Diffstat (limited to 'drivers/pcmcia/i82365.c')
| -rw-r--r-- | drivers/pcmcia/i82365.c | 1355 |
1 files changed, 1355 insertions, 0 deletions
diff --git a/drivers/pcmcia/i82365.c b/drivers/pcmcia/i82365.c new file mode 100644 index 000000000..a2c138719 --- /dev/null +++ b/drivers/pcmcia/i82365.c @@ -0,0 +1,1355 @@ +/*====================================================================== + + Device driver for Intel 82365 and compatible PC Card controllers. + + i82365.c 1.265 1999/11/10 18:36:21 + + The contents of this file are subject to the Mozilla Public + License Version 1.1 (the "License"); you may not use this file + except in compliance with the License. You may obtain a copy of + the License at http://www.mozilla.org/MPL/ + + Software distributed under the License is distributed on an "AS + IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or + implied. See the License for the specific language governing + rights and limitations under the License. + + The initial developer of the original code is David A. Hinds + <dahinds@users.sourceforge.net>. Portions created by David A. Hinds + are Copyright (C) 1999 David A. Hinds. All Rights Reserved. + + Alternatively, the contents of this file may be used under the + terms of the GNU General Public License version 2 (the "GPL"), in which + case the provisions of the GPL are applicable instead of the + above. If you wish to allow the use of your version of this file + only under the terms of the GPL and not to allow others to use + your version of this file under the MPL, indicate your decision + by deleting the provisions above and replace them with the notice + and other provisions required by the GPL. If you do not delete + the provisions above, a recipient may use your version of this + file under either the MPL or the GPL. + +======================================================================*/ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/fcntl.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/timer.h> +#include <linux/ioport.h> +#include <linux/delay.h> +#include <linux/workqueue.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/bitops.h> +#include <asm/irq.h> +#include <asm/io.h> + +#include <pcmcia/ss.h> + +#include <linux/isapnp.h> + +/* ISA-bus controllers */ +#include "i82365.h" +#include "cirrus.h" +#include "vg468.h" +#include "ricoh.h" + + +static irqreturn_t i365_count_irq(int, void *); +static inline int _check_irq(int irq, int flags) +{ + if (request_irq(irq, i365_count_irq, flags, "x", i365_count_irq) != 0) + return -1; + free_irq(irq, i365_count_irq); + return 0; +} + +/*====================================================================*/ + +/* Parameters that can be set with 'insmod' */ + +/* Default base address for i82365sl and other ISA chips */ +static unsigned long i365_base = 0x3e0; +/* Should we probe at 0x3e2 for an extra ISA controller? */ +static int extra_sockets = 0; +/* Specify a socket number to ignore */ +static int ignore = -1; +/* Bit map or list of interrupts to choose from */ +static u_int irq_mask = 0xffff; +static int irq_list[16]; +static unsigned int irq_list_count; +/* The card status change interrupt -- 0 means autoselect */ +static int cs_irq = 0; + +/* Probe for safe interrupts? */ +static int do_scan = 1; +/* Poll status interval -- 0 means default to interrupt */ +static int poll_interval = 0; +/* External clock time, in nanoseconds. 120 ns = 8.33 MHz */ +static int cycle_time = 120; + +/* Cirrus options */ +static int has_dma = -1; +static int has_led = -1; +static int has_ring = -1; +static int dynamic_mode = 0; +static int freq_bypass = -1; +static int setup_time = -1; +static int cmd_time = -1; +static int recov_time = -1; + +/* Vadem options */ +static int async_clock = -1; +static int cable_mode = -1; +static int wakeup = 0; + +module_param(i365_base, ulong, 0444); +module_param(ignore, int, 0444); +module_param(extra_sockets, int, 0444); +module_param(irq_mask, int, 0444); +module_param_array(irq_list, int, &irq_list_count, 0444); +module_param(cs_irq, int, 0444); +module_param(async_clock, int, 0444); +module_param(cable_mode, int, 0444); +module_param(wakeup, int, 0444); + +module_param(do_scan, int, 0444); +module_param(poll_interval, int, 0444); +module_param(cycle_time, int, 0444); +module_param(has_dma, int, 0444); +module_param(has_led, int, 0444); +module_param(has_ring, int, 0444); +module_param(dynamic_mode, int, 0444); +module_param(freq_bypass, int, 0444); +module_param(setup_time, int, 0444); +module_param(cmd_time, int, 0444); +module_param(recov_time, int, 0444); + +/*====================================================================*/ + +typedef struct cirrus_state_t { + u_char misc1, misc2; + u_char timer[6]; +} cirrus_state_t; + +typedef struct vg46x_state_t { + u_char ctl, ema; +} vg46x_state_t; + +struct i82365_socket { + u_short type, flags; + struct pcmcia_socket socket; + unsigned int number; + unsigned int ioaddr; + u_short psock; + u_char cs_irq, intr; + union { + cirrus_state_t cirrus; + vg46x_state_t vg46x; + } state; +}; + +/* Where we keep track of our sockets... */ +static int sockets = 0; +static struct i82365_socket socket[8] = { + { 0, }, /* ... */ +}; + +/* Default ISA interrupt mask */ +#define I365_MASK 0xdeb8 /* irq 15,14,12,11,10,9,7,5,4,3 */ + +static int grab_irq; +static DEFINE_SPINLOCK(isa_lock); +#define ISA_LOCK(n, f) spin_lock_irqsave(&isa_lock, f) +#define ISA_UNLOCK(n, f) spin_unlock_irqrestore(&isa_lock, f) + +static struct timer_list poll_timer; + +/*====================================================================*/ + +/* These definitions must match the pcic table! */ +typedef enum pcic_id { + IS_I82365A, IS_I82365B, IS_I82365DF, + IS_IBM, IS_RF5Cx96, IS_VLSI, IS_VG468, IS_VG469, + IS_PD6710, IS_PD672X, IS_VT83C469, +} pcic_id; + +/* Flags for classifying groups of controllers */ +#define IS_VADEM 0x0001 +#define IS_CIRRUS 0x0002 +#define IS_VIA 0x0010 +#define IS_UNKNOWN 0x0400 +#define IS_VG_PWR 0x0800 +#define IS_DF_PWR 0x1000 +#define IS_REGISTERED 0x2000 +#define IS_ALIVE 0x8000 + +typedef struct pcic_t { + char *name; + u_short flags; +} pcic_t; + +static pcic_t pcic[] = { + { "Intel i82365sl A step", 0 }, + { "Intel i82365sl B step", 0 }, + { "Intel i82365sl DF", IS_DF_PWR }, + { "IBM Clone", 0 }, + { "Ricoh RF5C296/396", 0 }, + { "VLSI 82C146", 0 }, + { "Vadem VG-468", IS_VADEM }, + { "Vadem VG-469", IS_VADEM|IS_VG_PWR }, + { "Cirrus PD6710", IS_CIRRUS }, + { "Cirrus PD672x", IS_CIRRUS }, + { "VIA VT83C469", IS_CIRRUS|IS_VIA }, +}; + +#define PCIC_COUNT (sizeof(pcic)/sizeof(pcic_t)) + +/*====================================================================*/ + +static DEFINE_SPINLOCK(bus_lock); + +static u_char i365_get(u_short sock, u_short reg) +{ + unsigned long flags; + spin_lock_irqsave(&bus_lock,flags); + { + unsigned int port = socket[sock].ioaddr; + u_char val; + reg = I365_REG(socket[sock].psock, reg); + outb(reg, port); val = inb(port+1); + spin_unlock_irqrestore(&bus_lock,flags); + return val; + } +} + +static void i365_set(u_short sock, u_short reg, u_char data) +{ + unsigned long flags; + spin_lock_irqsave(&bus_lock,flags); + { + unsigned int port = socket[sock].ioaddr; + u_char val = I365_REG(socket[sock].psock, reg); + outb(val, port); outb(data, port+1); + spin_unlock_irqrestore(&bus_lock,flags); + } +} + +static void i365_bset(u_short sock, u_short reg, u_char mask) +{ + u_char d = i365_get(sock, reg); + d |= mask; + i365_set(sock, reg, d); +} + +static void i365_bclr(u_short sock, u_short reg, u_char mask) +{ + u_char d = i365_get(sock, reg); + d &= ~mask; + i365_set(sock, reg, d); +} + +static void i365_bflip(u_short sock, u_short reg, u_char mask, int b) +{ + u_char d = i365_get(sock, reg); + if (b) + d |= mask; + else + d &= ~mask; + i365_set(sock, reg, d); +} + +static u_short i365_get_pair(u_short sock, u_short reg) +{ + u_short a, b; + a = i365_get(sock, reg); + b = i365_get(sock, reg+1); + return (a + (b<<8)); +} + +static void i365_set_pair(u_short sock, u_short reg, u_short data) +{ + i365_set(sock, reg, data & 0xff); + i365_set(sock, reg+1, data >> 8); +} + +/*====================================================================== + + Code to save and restore global state information for Cirrus + PD67xx controllers, and to set and report global configuration + options. + + The VIA controllers also use these routines, as they are mostly + Cirrus lookalikes, without the timing registers. + +======================================================================*/ + +#define flip(v,b,f) (v = ((f)<0) ? v : ((f) ? ((v)|(b)) : ((v)&(~b)))) + +static void cirrus_get_state(u_short s) +{ + int i; + cirrus_state_t *p = &socket[s].state.cirrus; + p->misc1 = i365_get(s, PD67_MISC_CTL_1); + p->misc1 &= (PD67_MC1_MEDIA_ENA | PD67_MC1_INPACK_ENA); + p->misc2 = i365_get(s, PD67_MISC_CTL_2); + for (i = 0; i < 6; i++) + p->timer[i] = i365_get(s, PD67_TIME_SETUP(0)+i); +} + +static void cirrus_set_state(u_short s) +{ + int i; + u_char misc; + cirrus_state_t *p = &socket[s].state.cirrus; + + misc = i365_get(s, PD67_MISC_CTL_2); + i365_set(s, PD67_MISC_CTL_2, p->misc2); + if (misc & PD67_MC2_SUSPEND) mdelay(50); + misc = i365_get(s, PD67_MISC_CTL_1); + misc &= ~(PD67_MC1_MEDIA_ENA | PD67_MC1_INPACK_ENA); + i365_set(s, PD67_MISC_CTL_1, misc | p->misc1); + for (i = 0; i < 6; i++) + i365_set(s, PD67_TIME_SETUP(0)+i, p->timer[i]); +} + +static u_int __init cirrus_set_opts(u_short s, char *buf) +{ + struct i82365_socket *t = &socket[s]; + cirrus_state_t *p = &socket[s].state.cirrus; + u_int mask = 0xffff; + + if (has_ring == -1) has_ring = 1; + flip(p->misc2, PD67_MC2_IRQ15_RI, has_ring); + flip(p->misc2, PD67_MC2_DYNAMIC_MODE, dynamic_mode); + flip(p->misc2, PD67_MC2_FREQ_BYPASS, freq_bypass); + if (p->misc2 & PD67_MC2_IRQ15_RI) + strcat(buf, " [ring]"); + if (p->misc2 & PD67_MC2_DYNAMIC_MODE) + strcat(buf, " [dyn mode]"); + if (p->misc2 & PD67_MC2_FREQ_BYPASS) + strcat(buf, " [freq bypass]"); + if (p->misc1 & PD67_MC1_INPACK_ENA) + strcat(buf, " [inpack]"); + if (p->misc2 & PD67_MC2_IRQ15_RI) + mask &= ~0x8000; + if (has_led > 0) { + strcat(buf, " [led]"); + mask &= ~0x1000; + } + if (has_dma > 0) { + strcat(buf, " [dma]"); + mask &= ~0x0600; + } + if (!(t->flags & IS_VIA)) { + if (setup_time >= 0) + p->timer[0] = p->timer[3] = setup_time; + if (cmd_time > 0) { + p->timer[1] = cmd_time; + p->timer[4] = cmd_time*2+4; + } + if (p->timer[1] == 0) { + p->timer[1] = 6; p->timer[4] = 16; + if (p->timer[0] == 0) + p->timer[0] = p->timer[3] = 1; + } + if (recov_time >= 0) + p->timer[2] = p->timer[5] = recov_time; + buf += strlen(buf); + sprintf(buf, " [%d/%d/%d] [%d/%d/%d]", p->timer[0], p->timer[1], + p->timer[2], p->timer[3], p->timer[4], p->timer[5]); + } + return mask; +} + +/*====================================================================== + + Code to save and restore global state information for Vadem VG468 + and VG469 controllers, and to set and report global configuration + options. + +======================================================================*/ + +static void vg46x_get_state(u_short s) +{ + vg46x_state_t *p = &socket[s].state.vg46x; + p->ctl = i365_get(s, VG468_CTL); + if (socket[s].type == IS_VG469) + p->ema = i365_get(s, VG469_EXT_MODE); +} + +static void vg46x_set_state(u_short s) +{ + vg46x_state_t *p = &socket[s].state.vg46x; + i365_set(s, VG468_CTL, p->ctl); + if (socket[s].type == IS_VG469) + i365_set(s, VG469_EXT_MODE, p->ema); +} + +static u_int __init vg46x_set_opts(u_short s, char *buf) +{ + vg46x_state_t *p = &socket[s].state.vg46x; + + flip(p->ctl, VG468_CTL_ASYNC, async_clock); + flip(p->ema, VG469_MODE_CABLE, cable_mode); + if (p->ctl & VG468_CTL_ASYNC) + strcat(buf, " [async]"); + if (p->ctl & VG468_CTL_INPACK) + strcat(buf, " [inpack]"); + if (socket[s].type == IS_VG469) { + u_char vsel = i365_get(s, VG469_VSELECT); + if (vsel & VG469_VSEL_EXT_STAT) { + strcat(buf, " [ext mode]"); + if (vsel & VG469_VSEL_EXT_BUS) + strcat(buf, " [isa buf]"); + } + if (p->ema & VG469_MODE_CABLE) + strcat(buf, " [cable]"); + if (p->ema & VG469_MODE_COMPAT) + strcat(buf, " [c step]"); + } + return 0xffff; +} + +/*====================================================================== + + Generic routines to get and set controller options + +======================================================================*/ + +static void get_bridge_state(u_short s) +{ + struct i82365_socket *t = &socket[s]; + if (t->flags & IS_CIRRUS) + cirrus_get_state(s); + else if (t->flags & IS_VADEM) + vg46x_get_state(s); +} + +static void set_bridge_state(u_short s) +{ + struct i82365_socket *t = &socket[s]; + if (t->flags & IS_CIRRUS) + cirrus_set_state(s); + else { + i365_set(s, I365_GBLCTL, 0x00); + i365_set(s, I365_GENCTL, 0x00); + } + i365_bflip(s, I365_INTCTL, I365_INTR_ENA, t->intr); + if (t->flags & IS_VADEM) + vg46x_set_state(s); +} + +static u_int __init set_bridge_opts(u_short s, u_short ns) +{ + u_short i; + u_int m = 0xffff; + char buf[128]; + + for (i = s; i < s+ns; i++) { + if (socket[i].flags & IS_ALIVE) { + printk(KERN_INFO " host opts [%d]: already alive!\n", i); + continue; + } + buf[0] = '\0'; + get_bridge_state(i); + if (socket[i].flags & IS_CIRRUS) + m = cirrus_set_opts(i, buf); + else if (socket[i].flags & IS_VADEM) + m = vg46x_set_opts(i, buf); + set_bridge_state(i); + printk(KERN_INFO " host opts [%d]:%s\n", i, + (*buf) ? buf : " none"); + } + return m; +} + +/*====================================================================== + + Interrupt testing code, for ISA and PCI interrupts + +======================================================================*/ + +static volatile u_int irq_hits; +static u_short irq_sock; + +static irqreturn_t i365_count_irq(int irq, void *dev) +{ + i365_get(irq_sock, I365_CSC); + irq_hits++; + pr_debug("i82365: -> hit on irq %d\n", irq); + return IRQ_HANDLED; +} + +static u_int __init test_irq(u_short sock, int irq) +{ + pr_debug("i82365: testing ISA irq %d\n", irq); + if (request_irq(irq, i365_count_irq, IRQF_PROBE_SHARED, "scan", + i365_count_irq) != 0) + return 1; + irq_hits = 0; irq_sock = sock; + msleep(10); + if (irq_hits) { + free_irq(irq, i365_count_irq); + pr_debug("i82365: spurious hit!\n"); + return 1; + } + + /* Generate one interrupt */ + i365_set(sock, I365_CSCINT, I365_CSC_DETECT | (irq << 4)); + i365_bset(sock, I365_GENCTL, I365_CTL_SW_IRQ); + udelay(1000); + + free_irq(irq, i365_count_irq); + + /* mask all interrupts */ + i365_set(sock, I365_CSCINT, 0); + pr_debug("i82365: hits = %d\n", irq_hits); + + return (irq_hits != 1); +} + +static u_int __init isa_scan(u_short sock, u_int mask0) +{ + u_int mask1 = 0; + int i; + +#ifdef __alpha__ +#define PIC 0x4d0 + /* Don't probe level-triggered interrupts -- reserved for PCI */ + mask0 &= ~(inb(PIC) | (inb(PIC+1) << 8)); +#endif + + if (do_scan) { + set_bridge_state(sock); + i365_set(sock, I365_CSCINT, 0); + for (i = 0; i < 16; i++) + if ((mask0 & (1 << i)) && (test_irq(sock, i) == 0)) + mask1 |= (1 << i); + for (i = 0; i < 16; i++) + if ((mask1 & (1 << i)) && (test_irq(sock, i) != 0)) + mask1 ^= (1 << i); + } + + printk(KERN_INFO " ISA irqs ("); + if (mask1) { + printk("scanned"); + } else { + /* Fallback: just find interrupts that aren't in use */ + for (i = 0; i < 16; i++) + if ((mask0 & (1 << i)) && (_check_irq(i, IRQF_PROBE_SHARED) == 0)) + mask1 |= (1 << i); + printk("default"); + /* If scan failed, default to polled status */ + if (!cs_irq && (poll_interval == 0)) poll_interval = HZ; + } + printk(") = "); + + for (i = 0; i < 16; i++) + if (mask1 & (1<<i)) + printk("%s%d", ((mask1 & ((1<<i)-1)) ? "," : ""), i); + if (mask1 == 0) printk("none!"); + + return mask1; +} + +/*====================================================================*/ + +/* Time conversion functions */ + +static int to_cycles(int ns) +{ + return ns/cycle_time; +} + +/*====================================================================*/ + +static int __init identify(unsigned int port, u_short sock) +{ + u_char val; + int type = -1; + + /* Use the next free entry in the socket table */ + socket[sockets].ioaddr = port; + socket[sockets].psock = sock; + + /* Wake up a sleepy Cirrus controller */ + if (wakeup) { + i365_bclr(sockets, PD67_MISC_CTL_2, PD67_MC2_SUSPEND); + /* Pause at least 50 ms */ + mdelay(50); + } + + if ((val = i365_get(sockets, I365_IDENT)) & 0x70) + return -1; + switch (val) { + case 0x82: + type = IS_I82365A; break; + case 0x83: + type = IS_I82365B; break; + case 0x84: + type = IS_I82365DF; break; + case 0x88: case 0x89: case 0x8a: + type = IS_IBM; break; + } + + /* Check for Vadem VG-468 chips */ + outb(0x0e, port); + outb(0x37, port); + i365_bset(sockets, VG468_MISC, VG468_MISC_VADEMREV); + val = i365_get(sockets, I365_IDENT); + if (val & I365_IDENT_VADEM) { + i365_bclr(sockets, VG468_MISC, VG468_MISC_VADEMREV); + type = ((val & 7) >= 4) ? IS_VG469 : IS_VG468; + } + + /* Check for Ricoh chips */ + val = i365_get(sockets, RF5C_CHIP_ID); + if ((val == RF5C_CHIP_RF5C296) || (val == RF5C_CHIP_RF5C396)) + type = IS_RF5Cx96; + + /* Check for Cirrus CL-PD67xx chips */ + i365_set(sockets, PD67_CHIP_INFO, 0); + val = i365_get(sockets, PD67_CHIP_INFO); + if ((val & PD67_INFO_CHIP_ID) == PD67_INFO_CHIP_ID) { + val = i365_get(sockets, PD67_CHIP_INFO); + if ((val & PD67_INFO_CHIP_ID) == 0) { + type = (val & PD67_INFO_SLOTS) ? IS_PD672X : IS_PD6710; + i365_set(sockets, PD67_EXT_INDEX, 0xe5); + if (i365_get(sockets, PD67_EXT_INDEX) != 0xe5) + type = IS_VT83C469; + } + } + return type; +} /* identify */ + +/*====================================================================== + + See if a card is present, powered up, in IO mode, and already + bound to a (non PC Card) Linux driver. We leave these alone. + + We make an exception for cards that seem to be serial devices. + +======================================================================*/ + +static int __init is_alive(u_short sock) +{ + u_char stat; + unsigned int start, stop; + + stat = i365_get(sock, I365_STATUS); + start = i365_get_pair(sock, I365_IO(0)+I365_W_START); + stop = i365_get_pair(sock, I365_IO(0)+I365_W_STOP); + if ((stat & I365_CS_DETECT) && (stat & I365_CS_POWERON) && + (i365_get(sock, I365_INTCTL) & I365_PC_IOCARD) && + (i365_get(sock, I365_ADDRWIN) & I365_ENA_IO(0)) && + ((start & 0xfeef) != 0x02e8)) { + if (!request_region(start, stop-start+1, "i82365")) + return 1; + release_region(start, stop-start+1); + } + + return 0; +} + +/*====================================================================*/ + +static void __init add_socket(unsigned int port, int psock, int type) +{ + socket[sockets].ioaddr = port; + socket[sockets].psock = psock; + socket[sockets].type = type; + socket[sockets].flags = pcic[type].flags; + if (is_alive(sockets)) + socket[sockets].flags |= IS_ALIVE; + sockets++; +} + +static void __init add_pcic(int ns, int type) +{ + u_int mask = 0, i, base; + int isa_irq = 0; + struct i82365_socket *t = &socket[sockets-ns]; + + base = sockets-ns; + if (base == 0) printk("\n"); + printk(KERN_INFO " %s", pcic[type].name); + printk(" ISA-to-PCMCIA at port %#x ofs 0x%02x", + t->ioaddr, t->psock*0x40); + printk(", %d socket%s\n", ns, ((ns > 1) ? "s" : "")); + + /* Set host options, build basic interrupt mask */ + if (irq_list_count == 0) + mask = irq_mask; + else + for (i = mask = 0; i < irq_list_count; i++) + mask |= (1<<irq_list[i]); + mask &= I365_MASK & set_bridge_opts(base, ns); + /* Scan for ISA interrupts */ + mask = isa_scan(base, mask); + + /* Poll if only two interrupts available */ + if (!poll_interval) { + u_int tmp = (mask & 0xff20); + tmp = tmp & (tmp-1); + if ((tmp & (tmp-1)) == 0) + poll_interval = HZ; + } + /* Only try an ISA cs_irq if this is the first controller */ + if (!grab_irq && (cs_irq || !poll_interval)) { + /* Avoid irq 12 unless it is explicitly requested */ + u_int cs_mask = mask & ((cs_irq) ? (1<<cs_irq) : ~(1<<12)); + for (cs_irq = 15; cs_irq > 0; cs_irq--) + if ((cs_mask & (1 << cs_irq)) && + (_check_irq(cs_irq, IRQF_PROBE_SHARED) == 0)) + break; + if (cs_irq) { + grab_irq = 1; + isa_irq = cs_irq; + printk(" status change on irq %d\n", cs_irq); + } + } + + if (!isa_irq) { + if (poll_interval == 0) + poll_interval = HZ; + printk(" polling interval = %d ms\n", + poll_interval * 1000 / HZ); + + } + + /* Update socket interrupt information, capabilities */ + for (i = 0; i < ns; i++) { + t[i].socket.features |= SS_CAP_PCCARD; + t[i].socket.map_size = 0x1000; + t[i].socket.irq_mask = mask; + t[i].cs_irq = isa_irq; + } + +} /* add_pcic */ + +/*====================================================================*/ + +#ifdef CONFIG_PNP +static struct isapnp_device_id id_table[] __initdata = { + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'), + ISAPNP_FUNCTION(0x0e00), (unsigned long) "Intel 82365-Compatible" }, + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'), + ISAPNP_FUNCTION(0x0e01), (unsigned long) "Cirrus Logic CL-PD6720" }, + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'), + ISAPNP_FUNCTION(0x0e02), (unsigned long) "VLSI VL82C146" }, + { 0 } +}; +MODULE_DEVICE_TABLE(isapnp, id_table); + +static struct pnp_dev *i82365_pnpdev; +#endif + +static void __init isa_probe(void) +{ + int i, j, sock, k, ns, id; + unsigned int port; +#ifdef CONFIG_PNP + struct isapnp_device_id *devid; + struct pnp_dev *dev; + + for (devid = id_table; devid->vendor; devid++) { + if ((dev = pnp_find_dev(NULL, devid->vendor, devid->function, NULL))) { + + if (pnp_device_attach(dev) < 0) + continue; + + if (pnp_activate_dev(dev) < 0) { + printk("activate failed\n"); + pnp_device_detach(dev); + break; + } + + if (!pnp_port_valid(dev, 0)) { + printk("invalid resources ?\n"); + pnp_device_detach(dev); + break; + } + i365_base = pnp_port_start(dev, 0); + i82365_pnpdev = dev; + break; + } + } +#endif + + if (!request_region(i365_base, 2, "i82365")) { + if (sockets == 0) + printk("port conflict at %#lx\n", i365_base); + return; + } + + id = identify(i365_base, 0); + if ((id == IS_I82365DF) && (identify(i365_base, 1) != id)) { + for (i = 0; i < 4; i++) { + if (i == ignore) continue; + port = i365_base + ((i & 1) << 2) + ((i & 2) << 1); + sock = (i & 1) << 1; + if (identify(port, sock) == IS_I82365DF) { + add_socket(port, sock, IS_VLSI); + add_pcic(1, IS_VLSI); + } + } + } else { + for (i = 0; i < 8; i += 2) { + if (sockets && !extra_sockets && (i == 4)) + break; + port = i365_base + 2*(i>>2); + sock = (i & 3); + id = identify(port, sock); + if (id < 0) continue; + + for (j = ns = 0; j < 2; j++) { + /* Does the socket exist? */ + if ((ignore == i+j) || (identify(port, sock+j) < 0)) + continue; + /* Check for bad socket decode */ + for (k = 0; k <= sockets; k++) + i365_set(k, I365_MEM(0)+I365_W_OFF, k); + for (k = 0; k <= sockets; k++) + if (i365_get(k, I365_MEM(0)+I365_W_OFF) != k) + break; + if (k <= sockets) break; + add_socket(port, sock+j, id); ns++; + } + if (ns != 0) add_pcic(ns, id); + } + } +} + +/*====================================================================*/ + +static irqreturn_t pcic_interrupt(int irq, void *dev) +{ + int i, j, csc; + u_int events, active; + u_long flags = 0; + int handled = 0; + + pr_debug("pcic_interrupt(%d)\n", irq); + + for (j = 0; j < 20; j++) { + active = 0; + for (i = 0; i < sockets; i++) { + if (socket[i].cs_irq != irq) + continue; + handled = 1; + ISA_LOCK(i, flags); + csc = i365_get(i, I365_CSC); + if ((csc == 0) || (i365_get(i, I365_IDENT) & 0x70)) { + ISA_UNLOCK(i, flags); + continue; + } + events = (csc & I365_CSC_DETECT) ? SS_DETECT : 0; + + if (i365_get(i, I365_INTCTL) & I365_PC_IOCARD) + events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0; + else { + events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0; + events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0; + events |= (csc & I365_CSC_READY) ? SS_READY : 0; + } + ISA_UNLOCK(i, flags); + pr_debug("socket %d event 0x%02x\n", i, events); + + if (events) + pcmcia_parse_events(&socket[i].socket, events); + + active |= events; + } + if (!active) break; + } + if (j == 20) + printk(KERN_NOTICE "i82365: infinite loop in interrupt handler\n"); + + pr_debug("pcic_interrupt done\n"); + return IRQ_RETVAL(handled); +} /* pcic_interrupt */ + +static void pcic_interrupt_wrapper(u_long data) +{ + pcic_interrupt(0, NULL); + poll_timer.expires = jiffies + poll_interval; + add_timer(&poll_timer); +} + +/*====================================================================*/ + +static int i365_get_status(u_short sock, u_int *value) +{ + u_int status; + + status = i365_get(sock, I365_STATUS); + *value = ((status & I365_CS_DETECT) == I365_CS_DETECT) + ? SS_DETECT : 0; + + if (i365_get(sock, I365_INTCTL) & I365_PC_IOCARD) + *value |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG; + else { + *value |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD; + *value |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN; + } + *value |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0; + *value |= (status & I365_CS_READY) ? SS_READY : 0; + *value |= (status & I365_CS_POWERON) ? SS_POWERON : 0; + + if (socket[sock].type == IS_VG469) { + status = i365_get(sock, VG469_VSENSE); + if (socket[sock].psock & 1) { + *value |= (status & VG469_VSENSE_B_VS1) ? 0 : SS_3VCARD; + *value |= (status & VG469_VSENSE_B_VS2) ? 0 : SS_XVCARD; + } else { + *value |= (status & VG469_VSENSE_A_VS1) ? 0 : SS_3VCARD; + *value |= (status & VG469_VSENSE_A_VS2) ? 0 : SS_XVCARD; + } + } + + pr_debug("GetStatus(%d) = %#4.4x\n", sock, *value); + return 0; +} /* i365_get_status */ + +/*====================================================================*/ + +static int i365_set_socket(u_short sock, socket_state_t *state) +{ + struct i82365_socket *t = &socket[sock]; + u_char reg; + + pr_debug("SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, " + "io_irq %d, csc_mask %#2.2x)\n", sock, state->flags, + state->Vcc, state->Vpp, state->io_irq, state->csc_mask); + + /* First set global controller options */ + set_bridge_state(sock); + + /* IO card, RESET flag, IO interrupt */ + reg = t->intr; + reg |= state->io_irq; + reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET; + reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0; + i365_set(sock, I365_INTCTL, reg); + + reg = I365_PWR_NORESET; + if (state->flags & SS_PWR_AUTO) reg |= I365_PWR_AUTO; + if (state->flags & SS_OUTPUT_ENA) reg |= I365_PWR_OUT; + + if (t->flags & IS_CIRRUS) { + if (state->Vpp != 0) { + if (state->Vpp == 120) + reg |= I365_VPP1_12V; + else if (state->Vpp == state->Vcc) + reg |= I365_VPP1_5V; + else return -EINVAL; + } + if (state->Vcc != 0) { + reg |= I365_VCC_5V; + if (state->Vcc == 33) + i365_bset(sock, PD67_MISC_CTL_1, PD67_MC1_VCC_3V); + else if (state->Vcc == 50) + i365_bclr(sock, PD67_MISC_CTL_1, PD67_MC1_VCC_3V); + else return -EINVAL; + } + } else if (t->flags & IS_VG_PWR) { + if (state->Vpp != 0) { + if (state->Vpp == 120) + reg |= I365_VPP1_12V; + else if (state->Vpp == state->Vcc) + reg |= I365_VPP1_5V; + else return -EINVAL; + } + if (state->Vcc != 0) { + reg |= I365_VCC_5V; + if (state->Vcc == 33) + i365_bset(sock, VG469_VSELECT, VG469_VSEL_VCC); + else if (state->Vcc == 50) + i365_bclr(sock, VG469_VSELECT, VG469_VSEL_VCC); + else return -EINVAL; + } + } else if (t->flags & IS_DF_PWR) { + switch (state->Vcc) { + case 0: break; + case 33: reg |= I365_VCC_3V; break; + case 50: reg |= I365_VCC_5V; break; + default: return -EINVAL; + } + switch (state->Vpp) { + case 0: break; + case 50: reg |= I365_VPP1_5V; break; + case 120: reg |= I365_VPP1_12V; break; + default: return -EINVAL; + } + } else { + switch (state->Vcc) { + case 0: break; + case 50: reg |= I365_VCC_5V; break; + default: return -EINVAL; + } + switch (state->Vpp) { + case 0: break; + case 50: reg |= I365_VPP1_5V | I365_VPP2_5V; break; + case 120: reg |= I365_VPP1_12V | I365_VPP2_12V; break; + default: return -EINVAL; + } + } + + if (reg != i365_get(sock, I365_POWER)) + i365_set(sock, I365_POWER, reg); + + /* Chipset-specific functions */ + if (t->flags & IS_CIRRUS) { + /* Speaker control */ + i365_bflip(sock, PD67_MISC_CTL_1, PD67_MC1_SPKR_ENA, + state->flags & SS_SPKR_ENA); + } + + /* Card status change interrupt mask */ + reg = t->cs_irq << 4; + if (state->csc_mask & SS_DETECT) reg |= I365_CSC_DETECT; + if (state->flags & SS_IOCARD) { + if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG; + } else { + if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1; + if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2; + if (state->csc_mask & SS_READY) reg |= I365_CSC_READY; + } + i365_set(sock, I365_CSCINT, reg); + i365_get(sock, I365_CSC); + + return 0; +} /* i365_set_socket */ + +/*====================================================================*/ + +static int i365_set_io_map(u_short sock, struct pccard_io_map *io) +{ + u_char map, ioctl; + + pr_debug("SetIOMap(%d, %d, %#2.2x, %d ns, " + "%#llx-%#llx)\n", sock, io->map, io->flags, io->speed, + (unsigned long long)io->start, (unsigned long long)io->stop); + map = io->map; + if ((map > 1) || (io->start > 0xffff) || (io->stop > 0xffff) || + (io->stop < io->start)) return -EINVAL; + /* Turn off the window before changing anything */ + if (i365_get(sock, I365_ADDRWIN) & I365_ENA_IO(map)) + i365_bclr(sock, I365_ADDRWIN, I365_ENA_IO(map)); + i365_set_pair(sock, I365_IO(map)+I365_W_START, io->start); + i365_set_pair(sock, I365_IO(map)+I365_W_STOP, io->stop); + ioctl = i365_get(sock, I365_IOCTL) & ~I365_IOCTL_MASK(map); + if (io->speed) ioctl |= I365_IOCTL_WAIT(map); + if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map); + if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map); + if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map); + i365_set(sock, I365_IOCTL, ioctl); + /* Turn on the window if necessary */ + if (io->flags & MAP_ACTIVE) + i365_bset(sock, I365_ADDRWIN, I365_ENA_IO(map)); + return 0; +} /* i365_set_io_map */ + +/*====================================================================*/ + +static int i365_set_mem_map(u_short sock, struct pccard_mem_map *mem) +{ + u_short base, i; + u_char map; + + pr_debug("SetMemMap(%d, %d, %#2.2x, %d ns, %#llx-%#llx, " + "%#x)\n", sock, mem->map, mem->flags, mem->speed, + (unsigned long long)mem->res->start, + (unsigned long long)mem->res->end, mem->card_start); + + map = mem->map; + if ((map > 4) || (mem->card_start > 0x3ffffff) || + (mem->res->start > mem->res->end) || (mem->speed > 1000)) + return -EINVAL; + if ((mem->res->start > 0xffffff) || (mem->res->end > 0xffffff)) + return -EINVAL; + + /* Turn off the window before changing anything */ + if (i365_get(sock, I365_ADDRWIN) & I365_ENA_MEM(map)) + i365_bclr(sock, I365_ADDRWIN, I365_ENA_MEM(map)); + + base = I365_MEM(map); + i = (mem->res->start >> 12) & 0x0fff; + if (mem->flags & MAP_16BIT) i |= I365_MEM_16BIT; + if (mem->flags & MAP_0WS) i |= I365_MEM_0WS; + i365_set_pair(sock, base+I365_W_START, i); + + i = (mem->res->end >> 12) & 0x0fff; + switch (to_cycles(mem->speed)) { + case 0: break; + case 1: i |= I365_MEM_WS0; break; + case 2: i |= I365_MEM_WS1; break; + default: i |= I365_MEM_WS1 | I365_MEM_WS0; break; + } + i365_set_pair(sock, base+I365_W_STOP, i); + + i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff; + if (mem->flags & MAP_WRPROT) i |= I365_MEM_WRPROT; + if (mem->flags & MAP_ATTRIB) i |= I365_MEM_REG; + i365_set_pair(sock, base+I365_W_OFF, i); + + /* Turn on the window if necessary */ + if (mem->flags & MAP_ACTIVE) + i365_bset(sock, I365_ADDRWIN, I365_ENA_MEM(map)); + return 0; +} /* i365_set_mem_map */ + +#if 0 /* driver model ordering issue */ +/*====================================================================== + + Routines for accessing socket information and register dumps via + /sys/class/pcmcia_socket/... + +======================================================================*/ + +static ssize_t show_info(struct class_device *class_dev, char *buf) +{ + struct i82365_socket *s = container_of(class_dev, struct i82365_socket, socket.dev); + return sprintf(buf, "type: %s\npsock: %d\n", + pcic[s->type].name, s->psock); +} + +static ssize_t show_exca(struct class_device *class_dev, char *buf) +{ + struct i82365_socket *s = container_of(class_dev, struct i82365_socket, socket.dev); + unsigned short sock; + int i; + ssize_t ret = 0; + unsigned long flags = 0; + + sock = s->number; + + ISA_LOCK(sock, flags); + for (i = 0; i < 0x40; i += 4) { + ret += sprintf(buf, "%02x %02x %02x %02x%s", + i365_get(sock,i), i365_get(sock,i+1), + i365_get(sock,i+2), i365_get(sock,i+3), + ((i % 16) == 12) ? "\n" : " "); + buf += ret; + } + ISA_UNLOCK(sock, flags); + + return ret; +} + +static CLASS_DEVICE_ATTR(exca, S_IRUGO, show_exca, NULL); +static CLASS_DEVICE_ATTR(info, S_IRUGO, show_info, NULL); +#endif + +/*====================================================================*/ + +/* this is horribly ugly... proper locking needs to be done here at + * some time... */ +#define LOCKED(x) do { \ + int retval; \ + unsigned long flags; \ + spin_lock_irqsave(&isa_lock, flags); \ + retval = x; \ + spin_unlock_irqrestore(&isa_lock, flags); \ + return retval; \ +} while (0) + + +static int pcic_get_status(struct pcmcia_socket *s, u_int *value) +{ + unsigned int sock = container_of(s, struct i82365_socket, socket)->number; + + if (socket[sock].flags & IS_ALIVE) { + *value = 0; + return -EINVAL; + } + + LOCKED(i365_get_status(sock, value)); +} + +static int pcic_set_socket(struct pcmcia_socket *s, socket_state_t *state) +{ + unsigned int sock = container_of(s, struct i82365_socket, socket)->number; + + if (socket[sock].flags & IS_ALIVE) + return -EINVAL; + + LOCKED(i365_set_socket(sock, state)); +} + +static int pcic_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io) +{ + unsigned int sock = container_of(s, struct i82365_socket, socket)->number; + if (socket[sock].flags & IS_ALIVE) + return -EINVAL; + + LOCKED(i365_set_io_map(sock, io)); +} + +static int pcic_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *mem) +{ + unsigned int sock = container_of(s, struct i82365_socket, socket)->number; + if (socket[sock].flags & IS_ALIVE) + return -EINVAL; + + LOCKED(i365_set_mem_map(sock, mem)); +} + +static int pcic_init(struct pcmcia_socket *s) +{ + int i; + struct resource res = { .start = 0, .end = 0x1000 }; + pccard_io_map io = { 0, 0, 0, 0, 1 }; + pccard_mem_map mem = { .res = &res, }; + + for (i = 0; i < 2; i++) { + io.map = i; + pcic_set_io_map(s, &io); + } + for (i = 0; i < 5; i++) { + mem.map = i; + pcic_set_mem_map(s, &mem); + } + return 0; +} + + +static struct pccard_operations pcic_operations = { + .init = pcic_init, + .get_status = pcic_get_status, + .set_socket = pcic_set_socket, + .set_io_map = pcic_set_io_map, + .set_mem_map = pcic_set_mem_map, +}; + +/*====================================================================*/ + +static struct platform_driver i82365_driver = { + .driver = { + .name = "i82365", + }, +}; + +static struct platform_device *i82365_device; + +static int __init init_i82365(void) +{ + int i, ret; + + ret = platform_driver_register(&i82365_driver); + if (ret) + goto err_out; + + i82365_device = platform_device_alloc("i82365", 0); + if (i82365_device) { + ret = platform_device_add(i82365_device); + if (ret) + platform_device_put(i82365_device); + } else + ret = -ENOMEM; + + if (ret) + goto err_driver_unregister; + + printk(KERN_INFO "Intel ISA PCIC probe: "); + sockets = 0; + + isa_probe(); + + if (sockets == 0) { + printk("not found.\n"); + ret = -ENODEV; + goto err_dev_unregister; + } + + /* Set up interrupt handler(s) */ + if (grab_irq != 0) + ret = request_irq(cs_irq, pcic_interrupt, 0, "i82365", pcic_interrupt); + + if (ret) + goto err_socket_release; + + /* register sockets with the pcmcia core */ + for (i = 0; i < sockets; i++) { + socket[i].socket.dev.parent = &i82365_device->dev; + socket[i].socket.ops = &pcic_operations; + socket[i].socket.resource_ops = &pccard_nonstatic_ops; + socket[i].socket.owner = THIS_MODULE; + socket[i].number = i; + ret = pcmcia_register_socket(&socket[i].socket); + if (!ret) + socket[i].flags |= IS_REGISTERED; + +#if 0 /* driver model ordering issue */ + class_device_create_file(&socket[i].socket.dev, + &class_device_attr_info); + class_device_create_file(&socket[i].socket.dev, + &class_device_attr_exca); +#endif + } + + /* Finally, schedule a polling interrupt */ + if (poll_interval != 0) { + poll_timer.function = pcic_interrupt_wrapper; + poll_timer.data = 0; + init_timer(&poll_timer); + poll_timer.expires = jiffies + poll_interval; + add_timer(&poll_timer); + } + + return 0; +err_socket_release: + for (i = 0; i < sockets; i++) { + /* Turn off all interrupt sources! */ + i365_set(i, I365_CSCINT, 0); + release_region(socket[i].ioaddr, 2); + } +err_dev_unregister: + platform_device_unregister(i82365_device); + release_region(i365_base, 2); +#ifdef CONFIG_PNP + if (i82365_pnpdev) + pnp_disable_dev(i82365_pnpdev); +#endif +err_driver_unregister: + platform_driver_unregister(&i82365_driver); +err_out: + return ret; +} /* init_i82365 */ + +static void __exit exit_i82365(void) +{ + int i; + + for (i = 0; i < sockets; i++) { + if (socket[i].flags & IS_REGISTERED) + pcmcia_unregister_socket(&socket[i].socket); + } + platform_device_unregister(i82365_device); + if (poll_interval != 0) + del_timer_sync(&poll_timer); + if (grab_irq != 0) + free_irq(cs_irq, pcic_interrupt); + for (i = 0; i < sockets; i++) { + /* Turn off all interrupt sources! */ + i365_set(i, I365_CSCINT, 0); + release_region(socket[i].ioaddr, 2); + } + release_region(i365_base, 2); +#ifdef CONFIG_PNP + if (i82365_pnpdev) + pnp_disable_dev(i82365_pnpdev); +#endif + platform_driver_unregister(&i82365_driver); +} /* exit_i82365 */ + +module_init(init_i82365); +module_exit(exit_i82365); +MODULE_LICENSE("Dual MPL/GPL"); +/*====================================================================*/ |