tcic.c
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上传日期:2013-04-10
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- /*======================================================================
- 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/init.h>
- #include <linux/types.h>
- #include <linux/fcntl.h>
- #include <linux/string.h>
- #include <asm/io.h>
- #include <asm/bitops.h>
- #include <asm/segment.h>
- #include <asm/system.h>
- #include <linux/kernel.h>
- #include <linux/errno.h>
- #include <linux/sched.h>
- #include <linux/slab.h>
- #include <linux/timer.h>
- #include <linux/ioport.h>
- #include <linux/delay.h>
- #include <linux/proc_fs.h>
- #include <pcmcia/version.h>
- #include <pcmcia/cs_types.h>
- #include <pcmcia/cs.h>
- #include <pcmcia/ss.h>
- #include "tcic.h"
- #ifdef PCMCIA_DEBUG
- static int pc_debug = PCMCIA_DEBUG;
- MODULE_PARM(pc_debug, "i");
- static const char *version =
- "tcic.c 1.111 2000/02/15 04:13:12 (David Hinds)";
- #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
- #else
- #define DEBUG(n, args...)
- #endif
- 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 int 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] = { -1 };
- /* The card status change interrupt -- 0 means autoselect */
- static int cs_irq = 0;
- /* Poll status interval -- 0 means default to interrupt */
- static int poll_interval = 0;
- /* 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_PARM(tcic_base, "i");
- MODULE_PARM(ignore, "i");
- MODULE_PARM(do_scan, "i");
- MODULE_PARM(irq_mask, "i");
- MODULE_PARM(irq_list, "1-16i");
- MODULE_PARM(cs_irq, "i");
- MODULE_PARM(poll_interval, "i");
- MODULE_PARM(poll_quick, "i");
- MODULE_PARM(cycle_time, "i");
- /*====================================================================*/
- static void tcic_interrupt(int irq, void *dev, struct pt_regs *regs);
- static void tcic_timer(u_long data);
- static struct pccard_operations tcic_operations;
- typedef struct socket_info_t {
- u_short psock;
- void (*handler)(void *info, u_int events);
- void *info;
- u_char last_sstat;
- u_char id;
- } socket_info_t;
- static struct timer_list poll_timer;
- static int tcic_timer_pending = 0;
- static int sockets;
- static socket_info_t socket_table[2];
- static socket_cap_t tcic_cap = {
- /* only 16-bit cards, memory windows must be size-aligned */
- SS_CAP_PCCARD | SS_CAP_MEM_ALIGN,
- 0x4cf8, /* irq 14, 11, 10, 7, 6, 5, 4, 3 */
- 0x1000, /* 4K minimum window size */
- 0, 0 /* No PCI or CardBus support */
- };
- /*====================================================================*/
- /* 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 PCMCIA_DEBUG_X
- static u_char tcic_getb(u_char reg)
- {
- u_char val = inb(tcic_base+reg);
- printk(KERN_DEBUG "tcic_getb(%#x) = %#xn", 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(%#x) = %#xn", tcic_base+reg, val);
- return val;
- }
- static void tcic_setb(u_char reg, u_char data)
- {
- printk(KERN_DEBUG "tcic_setb(%#x, %#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(%#x, %#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 PCMCIA_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 u_char tcic_aux_getb(u_short reg)
- {
- u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg;
- tcic_setb(TCIC_MODE, mode);
- return tcic_getb(TCIC_AUX);
- }
- 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 int to_ns(int cycles)
- {
- return (cycles*cycle_time)/2 + 14;
- }
- /*====================================================================*/
- static volatile u_int irq_hits;
- static void __init irq_count(int irq, void *dev, struct pt_regs *regs)
- {
- irq_hits++;
- }
- static u_int __init try_irq(int irq)
- {
- u_short cfg;
- irq_hits = 0;
- if (request_irq(irq, irq_count, 0, "irq scan", irq_count) != 0)
- return -1;
- mdelay(10);
- if (irq_hits) {
- free_irq(irq, 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, 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, irq_count, 0, "x", irq_count) == 0)) {
- mask1 |= (1 << i);
- free_irq(i, 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) &&
- (check_region(base, num) != 0) && ((base & 0xfeef) != 0x02e8))
- return 1;
- else
- 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 int __init init_tcic(void)
- {
- int i, sock;
- u_int mask, scan;
- servinfo_t serv;
- DEBUG(0, "%sn", version);
- pcmcia_get_card_services_info(&serv);
- if (serv.Revision != CS_RELEASE_CODE) {
- printk(KERN_NOTICE "tcic: Card Services release "
- "does not match!n");
- return -1;
- }
-
- printk(KERN_INFO "Databook TCIC-2 PCMCIA probe: ");
- sock = 0;
- if (check_region(tcic_base, 16) == 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) {
- /* 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;
- }
- }
- } else
- printk("could not allocate ports, ");
- if (sock == 0) {
- printk("not found.n");
- return -ENODEV;
- }
- request_region(tcic_base, 16, "tcic-2");
- sockets = 0;
- for (i = 0; i < sock; i++) {
- if ((i == ignore) || is_active(i)) continue;
- socket_table[sockets].psock = i;
- socket_table[sockets].handler = NULL;
- socket_table[sockets].info = NULL;
- socket_table[sockets].id = get_tcic_id();
- 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(", %d socketsn" KERN_INFO " irq list (", sockets);
- if (irq_list[0] == -1)
- mask = irq_mask;
- else
- for (i = mask = 0; i < 16; i++)
- mask |= (1<<irq_list[i]);
- mask &= tcic_cap.irq_mask;
- /* Scan interrupts */
- mask = irq_scan(mask);
- tcic_cap.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 (tcic_cap.irq_mask & (1 << 11))
- printk("sktirq is irq 11, ");
- if (cs_irq != 0)
- printk("status change on irq %dn", cs_irq);
- else
- printk("polled status, interval = %d msn",
- 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, NULL);
- if (register_ss_entry(sockets, &tcic_operations) != 0) {
- printk(KERN_NOTICE "tcic: register_ss_entry() failedn");
- release_region(tcic_base, 16);
- if (cs_irq != 0)
- free_irq(cs_irq, tcic_interrupt);
- return -ENODEV;
- }
- return 0;
-
- } /* init_tcic */
- /*====================================================================*/
- static void __exit exit_tcic(void)
- {
- u_long flags;
- unregister_ss_entry(&tcic_operations);
- save_flags(flags);
- cli();
- if (cs_irq != 0) {
- tcic_aux_setw(TCIC_AUX_SYSCFG, TCIC_SYSCFG_AUTOBUSY|0x0a00);
- free_irq(cs_irq, tcic_interrupt);
- }
- if (tcic_timer_pending)
- del_timer(&poll_timer);
- restore_flags(flags);
- release_region(tcic_base, 16);
- } /* exit_tcic */
- /*====================================================================*/
- static u_int pending_events[2];
- static spinlock_t pending_event_lock = SPIN_LOCK_UNLOCKED;
- static void tcic_bh(void *dummy)
- {
- u_int events;
- int i;
- for (i=0; i < sockets; i++) {
- spin_lock_irq(&pending_event_lock);
- events = pending_events[i];
- pending_events[i] = 0;
- spin_unlock_irq(&pending_event_lock);
- if (socket_table[i].handler)
- socket_table[i].handler(socket_table[i].info, events);
- }
- }
- static struct tq_struct tcic_task = {
- routine: tcic_bh
- };
- static void tcic_interrupt(int irq, void *dev, struct pt_regs *regs)
- {
- 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;
- } else
- active = 1;
- DEBUG(2, "tcic: 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) || (socket_table[psock].handler == NULL))
- 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) {
- spin_lock(&pending_event_lock);
- pending_events[i] |= events;
- spin_unlock(&pending_event_lock);
- schedule_task(&tcic_task);
- }
- }
- /* 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;
-
- DEBUG(2, "tcic: interrupt donen");
-
- } /* tcic_interrupt */
- static void tcic_timer(u_long data)
- {
- DEBUG(2, "tcic: tcic_timer()n");
- tcic_timer_pending = 0;
- tcic_interrupt(0, NULL, NULL);
- } /* tcic_timer */
- /*====================================================================*/
- static int tcic_register_callback(unsigned int lsock, void (*handler)(void *, unsigned int), void * info)
- {
- socket_table[lsock].handler = handler;
- socket_table[lsock].info = info;
- if (handler == NULL) {
- MOD_DEC_USE_COUNT;
- } else {
- MOD_INC_USE_COUNT;
- }
- return 0;
- } /* tcic_register_callback */
- /*====================================================================*/
- static int tcic_get_status(unsigned int lsock, u_int *value)
- {
- u_short psock = socket_table[lsock].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;
- DEBUG(1, "tcic: GetStatus(%d) = %#2.2xn", lsock, *value);
- return 0;
- } /* tcic_get_status */
-
- /*====================================================================*/
- static int tcic_inquire_socket(unsigned int lsock, socket_cap_t *cap)
- {
- *cap = tcic_cap;
- return 0;
- } /* tcic_inquire_socket */
- /*====================================================================*/
- static int tcic_get_socket(unsigned int lsock, socket_state_t *state)
- {
- u_short psock = socket_table[lsock].psock;
- u_char reg;
- u_short scf1, scf2;
-
- tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT)
- | TCIC_ADDR_INDREG | TCIC_SCF1(psock));
- scf1 = tcic_getw(TCIC_DATA);
- state->flags = (scf1 & TCIC_SCF1_IOSTS) ? SS_IOCARD : 0;
- state->flags |= (scf1 & TCIC_SCF1_DMA_MASK) ? SS_DMA_MODE : 0;
- state->flags |= (scf1 & TCIC_SCF1_SPKR) ? SS_SPKR_ENA : 0;
- if (tcic_getb(TCIC_SCTRL) & TCIC_SCTRL_ENA)
- state->flags |= SS_OUTPUT_ENA;
- state->io_irq = scf1 & TCIC_SCF1_IRQ_MASK;
- if (state->io_irq == 1) state->io_irq = 11;
- reg = tcic_getb(TCIC_PWR);
- state->Vcc = state->Vpp = 0;
- if (reg & TCIC_PWR_VCC(psock)) {
- if (reg & TCIC_PWR_VPP(psock))
- state->Vcc = 50;
- else
- state->Vcc = state->Vpp = 50;
- } else {
- if (reg & TCIC_PWR_VPP(psock)) {
- state->Vcc = 50;
- state->Vpp = 120;
- }
- }
- reg = tcic_aux_getb(TCIC_AUX_ILOCK);
- state->flags |= (reg & TCIC_ILOCK_CRESET) ? SS_RESET : 0;
- /* Card status change interrupt mask */
- tcic_setw(TCIC_ADDR, TCIC_SCF2(psock));
- scf2 = tcic_getw(TCIC_DATA);
- state->csc_mask = (scf2 & TCIC_SCF2_MCD) ? 0 : SS_DETECT;
- if (state->flags & SS_IOCARD) {
- state->csc_mask |= (scf2 & TCIC_SCF2_MLBAT1) ? 0 : SS_STSCHG;
- } else {
- state->csc_mask |= (scf2 & TCIC_SCF2_MLBAT1) ? 0 : SS_BATDEAD;
- state->csc_mask |= (scf2 & TCIC_SCF2_MLBAT2) ? 0 : SS_BATWARN;
- state->csc_mask |= (scf2 & TCIC_SCF2_MRDY) ? 0 : SS_READY;
- }
- DEBUG(1, "tcic: GetSocket(%d) = flags %#3.3x, Vcc %d, Vpp %d, "
- "io_irq %d, csc_mask %#2.2xn", lsock, state->flags,
- state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
- return 0;
- } /* tcic_get_socket */
- /*====================================================================*/
- static int tcic_set_socket(unsigned int lsock, socket_state_t *state)
- {
- u_short psock = socket_table[lsock].psock;
- u_char reg;
- u_short scf1, scf2;
- DEBUG(1, "tcic: SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
- "io_irq %d, csc_mask %#2.2x)n", lsock, 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_get_io_map(unsigned int lsock, struct pccard_io_map *io)
- {
- u_short psock = socket_table[lsock].psock;
- u_short base, ioctl;
- u_int addr;
-
- if (io->map > 1) return -EINVAL;
- tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT));
- addr = TCIC_IWIN(psock, io->map);
- 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)
- io->start = io->stop = base;
- else {
- io->start = base & (base-1);
- io->stop = io->start + (base ^ (base-1));
- }
- io->speed = to_ns(ioctl & TCIC_ICTL_WSCNT_MASK);
- io->flags = (ioctl & TCIC_ICTL_ENA) ? MAP_ACTIVE : 0;
- switch (ioctl & TCIC_ICTL_BW_MASK) {
- case TCIC_ICTL_BW_DYN:
- io->flags |= MAP_AUTOSZ; break;
- case TCIC_ICTL_BW_16:
- io->flags |= MAP_16BIT; break;
- default:
- break;
- }
- DEBUG(1, "tcic: GetIOMap(%d, %d) = %#2.2x, %d ns, "
- "%#4.4x-%#4.4xn", lsock, io->map, io->flags,
- io->speed, io->start, io->stop);
- return 0;
- } /* tcic_get_io_map */
- /*====================================================================*/
- static int tcic_set_io_map(unsigned int lsock, struct pccard_io_map *io)
- {
- u_short psock = socket_table[lsock].psock;
- u_int addr;
- u_short base, len, ioctl;
-
- DEBUG(1, "tcic: SetIOMap(%d, %d, %#2.2x, %d ns, "
- "%#4.4x-%#4.4x)n", lsock, io->map, io->flags,
- io->speed, io->start, 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_get_mem_map(unsigned int lsock, struct pccard_mem_map *mem)
- {
- u_short psock = socket_table[lsock].psock;
- u_short addr, ctl;
- u_long base, mmap;
-
- if (mem->map > 3) return -EINVAL;
- tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT));
- addr = TCIC_MWIN(psock, mem->map);
-
- tcic_setw(TCIC_ADDR, addr + TCIC_MBASE_X);
- base = tcic_getw(TCIC_DATA);
- if (base & TCIC_MBASE_4K_BIT) {
- mem->sys_start = base & TCIC_MBASE_HA_MASK;
- mem->sys_stop = mem->sys_start;
- } else {
- base &= TCIC_MBASE_HA_MASK;
- mem->sys_start = (base & (base-1));
- mem->sys_stop = mem->sys_start + (base ^ (base-1));
- }
- mem->sys_start = mem->sys_start << TCIC_MBASE_HA_SHFT;
- mem->sys_stop = (mem->sys_stop << TCIC_MBASE_HA_SHFT) + 0x0fff;
-
- tcic_setw(TCIC_ADDR, addr + TCIC_MMAP_X);
- mmap = tcic_getw(TCIC_DATA);
- mem->flags = (mmap & TCIC_MMAP_REG) ? MAP_ATTRIB : 0;
- mmap &= TCIC_MMAP_CA_MASK;
- mem->card_start = mem->sys_start + (mmap << TCIC_MMAP_CA_SHFT);
- mem->card_start &= 0x3ffffff;
-
- tcic_setw(TCIC_ADDR, addr + TCIC_MCTL_X);
- ctl = tcic_getw(TCIC_DATA);
- mem->flags |= (ctl & TCIC_MCTL_ENA) ? MAP_ACTIVE : 0;
- mem->flags |= (ctl & TCIC_MCTL_B8) ? 0 : MAP_16BIT;
- mem->flags |= (ctl & TCIC_MCTL_WP) ? MAP_WRPROT : 0;
- mem->speed = to_ns(ctl & TCIC_MCTL_WSCNT_MASK);
-
- DEBUG(1, "tcic: GetMemMap(%d, %d) = %#2.2x, %d ns, "
- "%#5.5lx-%#5.5lx, %#5.5xn", lsock, mem->map, mem->flags,
- mem->speed, mem->sys_start, mem->sys_stop, mem->card_start);
- return 0;
- } /* tcic_get_mem_map */
- /*====================================================================*/
-
- static int tcic_set_mem_map(unsigned int lsock, struct pccard_mem_map *mem)
- {
- u_short psock = socket_table[lsock].psock;
- u_short addr, ctl;
- u_long base, len, mmap;
- DEBUG(1, "tcic: SetMemMap(%d, %d, %#2.2x, %d ns, "
- "%#5.5lx-%#5.5lx, %#5.5x)n", lsock, mem->map, mem->flags,
- mem->speed, mem->sys_start, mem->sys_stop, mem->card_start);
- if ((mem->map > 3) || (mem->card_start > 0x3ffffff) ||
- (mem->sys_start > 0xffffff) || (mem->sys_stop > 0xffffff) ||
- (mem->sys_start > mem->sys_stop) || (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->sys_start; len = mem->sys_stop - mem->sys_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->sys_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 void tcic_proc_setup(unsigned int sock, struct proc_dir_entry *base)
- {
- }
- static int tcic_init(unsigned int s)
- {
- int i;
- pccard_io_map io = { 0, 0, 0, 0, 1 };
- pccard_mem_map mem = { 0, 0, 0, 0, 0, 0 };
- mem.sys_stop = 0x1000;
- tcic_set_socket(s, &dead_socket);
- 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 int tcic_suspend(unsigned int sock)
- {
- return tcic_set_socket(sock, &dead_socket);
- }
- static struct pccard_operations tcic_operations = {
- tcic_init,
- tcic_suspend,
- tcic_register_callback,
- tcic_inquire_socket,
- tcic_get_status,
- tcic_get_socket,
- tcic_set_socket,
- tcic_get_io_map,
- tcic_set_io_map,
- tcic_get_mem_map,
- tcic_set_mem_map,
- tcic_proc_setup
- };
- /*====================================================================*/
- module_init(init_tcic);
- module_exit(exit_tcic);