diff options
Diffstat (limited to 'drivers/pcmcia/tcic.c')
| -rw-r--r-- | drivers/pcmcia/tcic.c | 807 |
1 files changed, 807 insertions, 0 deletions
diff --git a/drivers/pcmcia/tcic.c b/drivers/pcmcia/tcic.c new file mode 100644 index 000000000..1ee63e5f0 --- /dev/null +++ b/drivers/pcmcia/tcic.c @@ -0,0 +1,807 @@ +/*====================================================================== + + Device driver for Databook TCIC-2 PCMCIA controller + + tcic.c 1.111 2000/02/15 04:13:12 + + 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/errno.h> +#include <linux/interrupt.h> +#include <linux/timer.h> +#include <linux/ioport.h> +#include <linux/delay.h> +#include <linux/workqueue.h> +#include <linux/platform_device.h> +#include <linux/bitops.h> + +#include <asm/io.h> + +#include <pcmcia/ss.h> +#include "tcic.h" + +MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); +MODULE_DESCRIPTION("Databook TCIC-2 PCMCIA socket driver"); +MODULE_LICENSE("Dual MPL/GPL"); + +/*====================================================================*/ + +/* Parameters that can be set with 'insmod' */ + +/* The base port address of the TCIC-2 chip */ +static unsigned long tcic_base = TCIC_BASE; + +/* Specify a socket number to ignore */ +static int ignore = -1; + +/* Probe for safe interrupts? */ +static int do_scan = 1; + +/* Bit map 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; + +/* Poll status interval -- 0 means default to interrupt */ +static int poll_interval; + +/* Delay for card status double-checking */ +static int poll_quick = HZ/20; + +/* CCLK external clock time, in nanoseconds. 70 ns = 14.31818 MHz */ +static int cycle_time = 70; + +module_param(tcic_base, ulong, 0444); +module_param(ignore, int, 0444); +module_param(do_scan, 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(poll_interval, int, 0444); +module_param(poll_quick, int, 0444); +module_param(cycle_time, int, 0444); + +/*====================================================================*/ + +static irqreturn_t tcic_interrupt(int irq, void *dev); +static void tcic_timer(u_long data); +static struct pccard_operations tcic_operations; + +struct tcic_socket { + u_short psock; + u_char last_sstat; + u_char id; + struct pcmcia_socket socket; +}; + +static struct timer_list poll_timer; +static int tcic_timer_pending; + +static int sockets; +static struct tcic_socket socket_table[2]; + +/*====================================================================*/ + +/* Trick when selecting interrupts: the TCIC sktirq pin is supposed + to map to irq 11, but is coded as 0 or 1 in the irq registers. */ +#define TCIC_IRQ(x) ((x) ? (((x) == 11) ? 1 : (x)) : 15) + +#ifdef DEBUG_X +static u_char tcic_getb(u_char reg) +{ + u_char val = inb(tcic_base+reg); + printk(KERN_DEBUG "tcic_getb(%#lx) = %#x\n", tcic_base+reg, val); + return val; +} + +static u_short tcic_getw(u_char reg) +{ + u_short val = inw(tcic_base+reg); + printk(KERN_DEBUG "tcic_getw(%#lx) = %#x\n", tcic_base+reg, val); + return val; +} + +static void tcic_setb(u_char reg, u_char data) +{ + printk(KERN_DEBUG "tcic_setb(%#lx, %#x)\n", tcic_base+reg, data); + outb(data, tcic_base+reg); +} + +static void tcic_setw(u_char reg, u_short data) +{ + printk(KERN_DEBUG "tcic_setw(%#lx, %#x)\n", tcic_base+reg, data); + outw(data, tcic_base+reg); +} +#else +#define tcic_getb(reg) inb(tcic_base+reg) +#define tcic_getw(reg) inw(tcic_base+reg) +#define tcic_setb(reg, data) outb(data, tcic_base+reg) +#define tcic_setw(reg, data) outw(data, tcic_base+reg) +#endif + +static void tcic_setl(u_char reg, u_int data) +{ +#ifdef DEBUG_X + printk(KERN_DEBUG "tcic_setl(%#x, %#lx)\n", tcic_base+reg, data); +#endif + outw(data & 0xffff, tcic_base+reg); + outw(data >> 16, tcic_base+reg+2); +} + +static void tcic_aux_setb(u_short reg, u_char data) +{ + u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg; + tcic_setb(TCIC_MODE, mode); + tcic_setb(TCIC_AUX, data); +} + +static u_short tcic_aux_getw(u_short reg) +{ + u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg; + tcic_setb(TCIC_MODE, mode); + return tcic_getw(TCIC_AUX); +} + +static void tcic_aux_setw(u_short reg, u_short data) +{ + u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg; + tcic_setb(TCIC_MODE, mode); + tcic_setw(TCIC_AUX, data); +} + +/*====================================================================*/ + +/* Time conversion functions */ + +static int to_cycles(int ns) +{ + if (ns < 14) + return 0; + else + return 2*(ns-14)/cycle_time; +} + +/*====================================================================*/ + +static volatile u_int irq_hits; + +static irqreturn_t __init tcic_irq_count(int irq, void *dev) +{ + irq_hits++; + return IRQ_HANDLED; +} + +static u_int __init try_irq(int irq) +{ + u_short cfg; + + irq_hits = 0; + if (request_irq(irq, tcic_irq_count, 0, "irq scan", tcic_irq_count) != 0) + return -1; + mdelay(10); + if (irq_hits) { + free_irq(irq, tcic_irq_count); + return -1; + } + + /* Generate one interrupt */ + cfg = TCIC_SYSCFG_AUTOBUSY | 0x0a00; + tcic_aux_setw(TCIC_AUX_SYSCFG, cfg | TCIC_IRQ(irq)); + tcic_setb(TCIC_IENA, TCIC_IENA_ERR | TCIC_IENA_CFG_HIGH); + tcic_setb(TCIC_ICSR, TCIC_ICSR_ERR | TCIC_ICSR_JAM); + + udelay(1000); + free_irq(irq, tcic_irq_count); + + /* Turn off interrupts */ + tcic_setb(TCIC_IENA, TCIC_IENA_CFG_OFF); + while (tcic_getb(TCIC_ICSR)) + tcic_setb(TCIC_ICSR, TCIC_ICSR_JAM); + tcic_aux_setw(TCIC_AUX_SYSCFG, cfg); + + return (irq_hits != 1); +} + +static u_int __init irq_scan(u_int mask0) +{ + u_int mask1; + int i; + +#ifdef __alpha__ +#define PIC 0x4d0 + /* Don't probe level-triggered interrupts -- reserved for PCI */ + int level_mask = inb_p(PIC) | (inb_p(PIC+1) << 8); + if (level_mask) + mask0 &= ~level_mask; +#endif + + mask1 = 0; + if (do_scan) { + for (i = 0; i < 16; i++) + if ((mask0 & (1 << i)) && (try_irq(i) == 0)) + mask1 |= (1 << i); + for (i = 0; i < 16; i++) + if ((mask1 & (1 << i)) && (try_irq(i) != 0)) { + mask1 ^= (1 << i); + } + } + + if (mask1) { + printk("scanned"); + } else { + /* Fallback: just find interrupts that aren't in use */ + for (i = 0; i < 16; i++) + if ((mask0 & (1 << i)) && + (request_irq(i, tcic_irq_count, 0, "x", tcic_irq_count) == 0)) { + mask1 |= (1 << i); + free_irq(i, tcic_irq_count); + } + printk("default"); + } + + printk(") = "); + for (i = 0; i < 16; i++) + if (mask1 & (1<<i)) + printk("%s%d", ((mask1 & ((1<<i)-1)) ? "," : ""), i); + printk(" "); + + return mask1; +} + +/*====================================================================== + + See if a card is present, powered up, in IO mode, and already + bound to a (non-PCMCIA) Linux driver. + + We make an exception for cards that look like serial devices. + +======================================================================*/ + +static int __init is_active(int s) +{ + u_short scf1, ioctl, base, num; + u_char pwr, sstat; + u_int addr; + + tcic_setl(TCIC_ADDR, (s << TCIC_ADDR_SS_SHFT) + | TCIC_ADDR_INDREG | TCIC_SCF1(s)); + scf1 = tcic_getw(TCIC_DATA); + pwr = tcic_getb(TCIC_PWR); + sstat = tcic_getb(TCIC_SSTAT); + addr = TCIC_IWIN(s, 0); + tcic_setw(TCIC_ADDR, addr + TCIC_IBASE_X); + base = tcic_getw(TCIC_DATA); + tcic_setw(TCIC_ADDR, addr + TCIC_ICTL_X); + ioctl = tcic_getw(TCIC_DATA); + + if (ioctl & TCIC_ICTL_TINY) + num = 1; + else { + num = (base ^ (base-1)); + base = base & (base-1); + } + + if ((sstat & TCIC_SSTAT_CD) && (pwr & TCIC_PWR_VCC(s)) && + (scf1 & TCIC_SCF1_IOSTS) && (ioctl & TCIC_ICTL_ENA) && + ((base & 0xfeef) != 0x02e8)) { + struct resource *res = request_region(base, num, "tcic-2"); + if (!res) /* region is busy */ + return 1; + release_region(base, num); + } + + return 0; +} + +/*====================================================================== + + This returns the revision code for the specified socket. + +======================================================================*/ + +static int __init get_tcic_id(void) +{ + u_short id; + + tcic_aux_setw(TCIC_AUX_TEST, TCIC_TEST_DIAG); + id = tcic_aux_getw(TCIC_AUX_ILOCK); + id = (id & TCIC_ILOCKTEST_ID_MASK) >> TCIC_ILOCKTEST_ID_SH; + tcic_aux_setw(TCIC_AUX_TEST, 0); + return id; +} + +/*====================================================================*/ + +static struct platform_driver tcic_driver = { + .driver = { + .name = "tcic-pcmcia", + }, +}; + +static struct platform_device tcic_device = { + .name = "tcic-pcmcia", + .id = 0, +}; + + +static int __init init_tcic(void) +{ + int i, sock, ret = 0; + u_int mask, scan; + + if (platform_driver_register(&tcic_driver)) + return -1; + + printk(KERN_INFO "Databook TCIC-2 PCMCIA probe: "); + sock = 0; + + if (!request_region(tcic_base, 16, "tcic-2")) { + printk("could not allocate ports,\n "); + platform_driver_unregister(&tcic_driver); + return -ENODEV; + } + else { + tcic_setw(TCIC_ADDR, 0); + if (tcic_getw(TCIC_ADDR) == 0) { + tcic_setw(TCIC_ADDR, 0xc3a5); + if (tcic_getw(TCIC_ADDR) == 0xc3a5) sock = 2; + } + if (sock == 0) { + /* See if resetting the controller does any good */ + tcic_setb(TCIC_SCTRL, TCIC_SCTRL_RESET); + tcic_setb(TCIC_SCTRL, 0); + tcic_setw(TCIC_ADDR, 0); + if (tcic_getw(TCIC_ADDR) == 0) { + tcic_setw(TCIC_ADDR, 0xc3a5); + if (tcic_getw(TCIC_ADDR) == 0xc3a5) sock = 2; + } + } + } + if (sock == 0) { + printk("not found.\n"); + release_region(tcic_base, 16); + platform_driver_unregister(&tcic_driver); + return -ENODEV; + } + + sockets = 0; + for (i = 0; i < sock; i++) { + if ((i == ignore) || is_active(i)) continue; + socket_table[sockets].psock = i; + socket_table[sockets].id = get_tcic_id(); + + socket_table[sockets].socket.owner = THIS_MODULE; + /* only 16-bit cards, memory windows must be size-aligned */ + /* No PCI or CardBus support */ + socket_table[sockets].socket.features = SS_CAP_PCCARD | SS_CAP_MEM_ALIGN; + /* irq 14, 11, 10, 7, 6, 5, 4, 3 */ + socket_table[sockets].socket.irq_mask = 0x4cf8; + /* 4K minimum window size */ + socket_table[sockets].socket.map_size = 0x1000; + sockets++; + } + + switch (socket_table[0].id) { + case TCIC_ID_DB86082: + printk("DB86082"); break; + case TCIC_ID_DB86082A: + printk("DB86082A"); break; + case TCIC_ID_DB86084: + printk("DB86084"); break; + case TCIC_ID_DB86084A: + printk("DB86084A"); break; + case TCIC_ID_DB86072: + printk("DB86072"); break; + case TCIC_ID_DB86184: + printk("DB86184"); break; + case TCIC_ID_DB86082B: + printk("DB86082B"); break; + default: + printk("Unknown ID 0x%02x", socket_table[0].id); + } + + /* Set up polling */ + poll_timer.function = &tcic_timer; + poll_timer.data = 0; + init_timer(&poll_timer); + + /* Build interrupt mask */ + printk(KERN_CONT ", %d sockets\n", sockets); + printk(KERN_INFO " irq list ("); + if (irq_list_count == 0) + mask = irq_mask; + else + for (i = mask = 0; i < irq_list_count; i++) + mask |= (1<<irq_list[i]); + + /* irq 14, 11, 10, 7, 6, 5, 4, 3 */ + mask &= 0x4cf8; + /* Scan interrupts */ + mask = irq_scan(mask); + for (i=0;i<sockets;i++) + socket_table[i].socket.irq_mask = mask; + + /* Check for only two interrupts available */ + scan = (mask & (mask-1)); + if (((scan & (scan-1)) == 0) && (poll_interval == 0)) + poll_interval = HZ; + + if (poll_interval == 0) { + /* Avoid irq 12 unless it is explicitly requested */ + u_int cs_mask = mask & ((cs_irq) ? (1<<cs_irq) : ~(1<<12)); + for (i = 15; i > 0; i--) + if ((cs_mask & (1 << i)) && + (request_irq(i, tcic_interrupt, 0, "tcic", + tcic_interrupt) == 0)) + break; + cs_irq = i; + if (cs_irq == 0) poll_interval = HZ; + } + + if (socket_table[0].socket.irq_mask & (1 << 11)) + printk("sktirq is irq 11, "); + if (cs_irq != 0) + printk("status change on irq %d\n", cs_irq); + else + printk("polled status, interval = %d ms\n", + poll_interval * 1000 / HZ); + + for (i = 0; i < sockets; i++) { + tcic_setw(TCIC_ADDR+2, socket_table[i].psock << TCIC_SS_SHFT); + socket_table[i].last_sstat = tcic_getb(TCIC_SSTAT); + } + + /* jump start interrupt handler, if needed */ + tcic_interrupt(0, NULL); + + platform_device_register(&tcic_device); + + for (i = 0; i < sockets; i++) { + socket_table[i].socket.ops = &tcic_operations; + socket_table[i].socket.resource_ops = &pccard_nonstatic_ops; + socket_table[i].socket.dev.parent = &tcic_device.dev; + ret = pcmcia_register_socket(&socket_table[i].socket); + if (ret && i) + pcmcia_unregister_socket(&socket_table[0].socket); + } + + return ret; + + return 0; + +} /* init_tcic */ + +/*====================================================================*/ + +static void __exit exit_tcic(void) +{ + int i; + + del_timer_sync(&poll_timer); + if (cs_irq != 0) { + tcic_aux_setw(TCIC_AUX_SYSCFG, TCIC_SYSCFG_AUTOBUSY|0x0a00); + free_irq(cs_irq, tcic_interrupt); + } + release_region(tcic_base, 16); + + for (i = 0; i < sockets; i++) { + pcmcia_unregister_socket(&socket_table[i].socket); + } + + platform_device_unregister(&tcic_device); + platform_driver_unregister(&tcic_driver); +} /* exit_tcic */ + +/*====================================================================*/ + +static irqreturn_t tcic_interrupt(int irq, void *dev) +{ + int i, quick = 0; + u_char latch, sstat; + u_short psock; + u_int events; + static volatile int active = 0; + + if (active) { + printk(KERN_NOTICE "tcic: reentered interrupt handler!\n"); + return IRQ_NONE; + } else + active = 1; + + pr_debug("tcic_interrupt()\n"); + + for (i = 0; i < sockets; i++) { + psock = socket_table[i].psock; + tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT) + | TCIC_ADDR_INDREG | TCIC_SCF1(psock)); + sstat = tcic_getb(TCIC_SSTAT); + latch = sstat ^ socket_table[psock].last_sstat; + socket_table[i].last_sstat = sstat; + if (tcic_getb(TCIC_ICSR) & TCIC_ICSR_CDCHG) { + tcic_setb(TCIC_ICSR, TCIC_ICSR_CLEAR); + quick = 1; + } + if (latch == 0) + continue; + events = (latch & TCIC_SSTAT_CD) ? SS_DETECT : 0; + events |= (latch & TCIC_SSTAT_WP) ? SS_WRPROT : 0; + if (tcic_getw(TCIC_DATA) & TCIC_SCF1_IOSTS) { + events |= (latch & TCIC_SSTAT_LBAT1) ? SS_STSCHG : 0; + } else { + events |= (latch & TCIC_SSTAT_RDY) ? SS_READY : 0; + events |= (latch & TCIC_SSTAT_LBAT1) ? SS_BATDEAD : 0; + events |= (latch & TCIC_SSTAT_LBAT2) ? SS_BATWARN : 0; + } + if (events) { + pcmcia_parse_events(&socket_table[i].socket, events); + } + } + + /* Schedule next poll, if needed */ + if (((cs_irq == 0) || quick) && (!tcic_timer_pending)) { + poll_timer.expires = jiffies + (quick ? poll_quick : poll_interval); + add_timer(&poll_timer); + tcic_timer_pending = 1; + } + active = 0; + + pr_debug("interrupt done\n"); + return IRQ_HANDLED; +} /* tcic_interrupt */ + +static void tcic_timer(u_long data) +{ + pr_debug("tcic_timer()\n"); + tcic_timer_pending = 0; + tcic_interrupt(0, NULL); +} /* tcic_timer */ + +/*====================================================================*/ + +static int tcic_get_status(struct pcmcia_socket *sock, u_int *value) +{ + u_short psock = container_of(sock, struct tcic_socket, socket)->psock; + u_char reg; + + tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT) + | TCIC_ADDR_INDREG | TCIC_SCF1(psock)); + reg = tcic_getb(TCIC_SSTAT); + *value = (reg & TCIC_SSTAT_CD) ? SS_DETECT : 0; + *value |= (reg & TCIC_SSTAT_WP) ? SS_WRPROT : 0; + if (tcic_getw(TCIC_DATA) & TCIC_SCF1_IOSTS) { + *value |= (reg & TCIC_SSTAT_LBAT1) ? SS_STSCHG : 0; + } else { + *value |= (reg & TCIC_SSTAT_RDY) ? SS_READY : 0; + *value |= (reg & TCIC_SSTAT_LBAT1) ? SS_BATDEAD : 0; + *value |= (reg & TCIC_SSTAT_LBAT2) ? SS_BATWARN : 0; + } + reg = tcic_getb(TCIC_PWR); + if (reg & (TCIC_PWR_VCC(psock)|TCIC_PWR_VPP(psock))) + *value |= SS_POWERON; + dev_dbg(&sock->dev, "GetStatus(%d) = %#2.2x\n", psock, *value); + return 0; +} /* tcic_get_status */ + +/*====================================================================*/ + +static int tcic_set_socket(struct pcmcia_socket *sock, socket_state_t *state) +{ + u_short psock = container_of(sock, struct tcic_socket, socket)->psock; + u_char reg; + u_short scf1, scf2; + + dev_dbg(&sock->dev, "SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, " + "io_irq %d, csc_mask %#2.2x)\n", psock, state->flags, + state->Vcc, state->Vpp, state->io_irq, state->csc_mask); + tcic_setw(TCIC_ADDR+2, (psock << TCIC_SS_SHFT) | TCIC_ADR2_INDREG); + + reg = tcic_getb(TCIC_PWR); + reg &= ~(TCIC_PWR_VCC(psock) | TCIC_PWR_VPP(psock)); + + if (state->Vcc == 50) { + switch (state->Vpp) { + case 0: reg |= TCIC_PWR_VCC(psock) | TCIC_PWR_VPP(psock); break; + case 50: reg |= TCIC_PWR_VCC(psock); break; + case 120: reg |= TCIC_PWR_VPP(psock); break; + default: return -EINVAL; + } + } else if (state->Vcc != 0) + return -EINVAL; + + if (reg != tcic_getb(TCIC_PWR)) + tcic_setb(TCIC_PWR, reg); + + reg = TCIC_ILOCK_HOLD_CCLK | TCIC_ILOCK_CWAIT; + if (state->flags & SS_OUTPUT_ENA) { + tcic_setb(TCIC_SCTRL, TCIC_SCTRL_ENA); + reg |= TCIC_ILOCK_CRESENA; + } else + tcic_setb(TCIC_SCTRL, 0); + if (state->flags & SS_RESET) + reg |= TCIC_ILOCK_CRESET; + tcic_aux_setb(TCIC_AUX_ILOCK, reg); + + tcic_setw(TCIC_ADDR, TCIC_SCF1(psock)); + scf1 = TCIC_SCF1_FINPACK; + scf1 |= TCIC_IRQ(state->io_irq); + if (state->flags & SS_IOCARD) { + scf1 |= TCIC_SCF1_IOSTS; + if (state->flags & SS_SPKR_ENA) + scf1 |= TCIC_SCF1_SPKR; + if (state->flags & SS_DMA_MODE) + scf1 |= TCIC_SCF1_DREQ2 << TCIC_SCF1_DMA_SHIFT; + } + tcic_setw(TCIC_DATA, scf1); + + /* Some general setup stuff, and configure status interrupt */ + reg = TCIC_WAIT_ASYNC | TCIC_WAIT_SENSE | to_cycles(250); + tcic_aux_setb(TCIC_AUX_WCTL, reg); + tcic_aux_setw(TCIC_AUX_SYSCFG, TCIC_SYSCFG_AUTOBUSY|0x0a00| + TCIC_IRQ(cs_irq)); + + /* Card status change interrupt mask */ + tcic_setw(TCIC_ADDR, TCIC_SCF2(psock)); + scf2 = TCIC_SCF2_MALL; + if (state->csc_mask & SS_DETECT) scf2 &= ~TCIC_SCF2_MCD; + if (state->flags & SS_IOCARD) { + if (state->csc_mask & SS_STSCHG) reg &= ~TCIC_SCF2_MLBAT1; + } else { + if (state->csc_mask & SS_BATDEAD) reg &= ~TCIC_SCF2_MLBAT1; + if (state->csc_mask & SS_BATWARN) reg &= ~TCIC_SCF2_MLBAT2; + if (state->csc_mask & SS_READY) reg &= ~TCIC_SCF2_MRDY; + } + tcic_setw(TCIC_DATA, scf2); + /* For the ISA bus, the irq should be active-high totem-pole */ + tcic_setb(TCIC_IENA, TCIC_IENA_CDCHG | TCIC_IENA_CFG_HIGH); + + return 0; +} /* tcic_set_socket */ + +/*====================================================================*/ + +static int tcic_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io) +{ + u_short psock = container_of(sock, struct tcic_socket, socket)->psock; + u_int addr; + u_short base, len, ioctl; + + dev_dbg(&sock->dev, "SetIOMap(%d, %d, %#2.2x, %d ns, " + "%#llx-%#llx)\n", psock, io->map, io->flags, io->speed, + (unsigned long long)io->start, (unsigned long long)io->stop); + if ((io->map > 1) || (io->start > 0xffff) || (io->stop > 0xffff) || + (io->stop < io->start)) return -EINVAL; + tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT)); + addr = TCIC_IWIN(psock, io->map); + + base = io->start; len = io->stop - io->start; + /* Check to see that len+1 is power of two, etc */ + if ((len & (len+1)) || (base & len)) return -EINVAL; + base |= (len+1)>>1; + tcic_setw(TCIC_ADDR, addr + TCIC_IBASE_X); + tcic_setw(TCIC_DATA, base); + + ioctl = (psock << TCIC_ICTL_SS_SHFT); + ioctl |= (len == 0) ? TCIC_ICTL_TINY : 0; + ioctl |= (io->flags & MAP_ACTIVE) ? TCIC_ICTL_ENA : 0; + ioctl |= to_cycles(io->speed) & TCIC_ICTL_WSCNT_MASK; + if (!(io->flags & MAP_AUTOSZ)) { + ioctl |= TCIC_ICTL_QUIET; + ioctl |= (io->flags & MAP_16BIT) ? TCIC_ICTL_BW_16 : TCIC_ICTL_BW_8; + } + tcic_setw(TCIC_ADDR, addr + TCIC_ICTL_X); + tcic_setw(TCIC_DATA, ioctl); + + return 0; +} /* tcic_set_io_map */ + +/*====================================================================*/ + +static int tcic_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem) +{ + u_short psock = container_of(sock, struct tcic_socket, socket)->psock; + u_short addr, ctl; + u_long base, len, mmap; + + dev_dbg(&sock->dev, "SetMemMap(%d, %d, %#2.2x, %d ns, " + "%#llx-%#llx, %#x)\n", psock, mem->map, mem->flags, + mem->speed, (unsigned long long)mem->res->start, + (unsigned long long)mem->res->end, mem->card_start); + if ((mem->map > 3) || (mem->card_start > 0x3ffffff) || + (mem->res->start > 0xffffff) || (mem->res->end > 0xffffff) || + (mem->res->start > mem->res->end) || (mem->speed > 1000)) + return -EINVAL; + tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT)); + addr = TCIC_MWIN(psock, mem->map); + + base = mem->res->start; len = mem->res->end - mem->res->start; + if ((len & (len+1)) || (base & len)) return -EINVAL; + if (len == 0x0fff) + base = (base >> TCIC_MBASE_HA_SHFT) | TCIC_MBASE_4K_BIT; + else + base = (base | (len+1)>>1) >> TCIC_MBASE_HA_SHFT; + tcic_setw(TCIC_ADDR, addr + TCIC_MBASE_X); + tcic_setw(TCIC_DATA, base); + + mmap = mem->card_start - mem->res->start; + mmap = (mmap >> TCIC_MMAP_CA_SHFT) & TCIC_MMAP_CA_MASK; + if (mem->flags & MAP_ATTRIB) mmap |= TCIC_MMAP_REG; + tcic_setw(TCIC_ADDR, addr + TCIC_MMAP_X); + tcic_setw(TCIC_DATA, mmap); + + ctl = TCIC_MCTL_QUIET | (psock << TCIC_MCTL_SS_SHFT); + ctl |= to_cycles(mem->speed) & TCIC_MCTL_WSCNT_MASK; + ctl |= (mem->flags & MAP_16BIT) ? 0 : TCIC_MCTL_B8; + ctl |= (mem->flags & MAP_WRPROT) ? TCIC_MCTL_WP : 0; + ctl |= (mem->flags & MAP_ACTIVE) ? TCIC_MCTL_ENA : 0; + tcic_setw(TCIC_ADDR, addr + TCIC_MCTL_X); + tcic_setw(TCIC_DATA, ctl); + + return 0; +} /* tcic_set_mem_map */ + +/*====================================================================*/ + +static int tcic_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; + tcic_set_io_map(s, &io); + } + for (i = 0; i < 5; i++) { + mem.map = i; + tcic_set_mem_map(s, &mem); + } + return 0; +} + +static struct pccard_operations tcic_operations = { + .init = tcic_init, + .get_status = tcic_get_status, + .set_socket = tcic_set_socket, + .set_io_map = tcic_set_io_map, + .set_mem_map = tcic_set_mem_map, +}; + +/*====================================================================*/ + +module_init(init_tcic); +module_exit(exit_tcic); |