1 files changed, 903 insertions, 0 deletions

diff --git a/drivers/pcmcia/tcic.c b/drivers/pcmcia/tcic.c
new file mode 100644
index 000000000000..aacbbb5f055d
--- /dev/null
+++ b/drivers/pcmcia/tcic.c
@@ -0,0 +1,903 @@
+/*======================================================================
+
+    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/slab.h>
+#include <linux/timer.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <linux/device.h>
+#include <linux/bitops.h>
+
+#include <asm/io.h>
+#include <asm/system.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/ss.h>
+#include "tcic.h"
+
+#ifdef DEBUG
+static int pc_debug;
+
+module_param(pc_debug, int, 0644);
+static const char version[] =
+"tcic.c 1.111 2000/02/15 04:13:12 (David Hinds)";
+
+#define debug(lvl, fmt, arg...) do {                            \
+        if (pc_debug > (lvl))                                   \
+                printk(KERN_DEBUG "tcic: " fmt , ## arg);       \
+} while (0)
+#else
+#define debug(lvl, fmt, arg...) do { } while (0)
+#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 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 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, struct pt_regs *regs);
+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 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 volatile u_int irq_hits;
+
+static irqreturn_t __init tcic_irq_count(int irq, void *dev, struct pt_regs *regs)
+{
+    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 int tcic_drv_suspend(struct device *dev, pm_message_t state, u32 level)
+{
+        int ret = 0;
+        if (level == SUSPEND_SAVE_STATE)
+                ret = pcmcia_socket_dev_suspend(dev, state);
+        return ret;
+}
+
+static int tcic_drv_resume(struct device *dev, u32 level)
+{
+        int ret = 0;
+        if (level == RESUME_RESTORE_STATE)
+                ret = pcmcia_socket_dev_resume(dev);
+        return ret;
+}
+
+static struct device_driver tcic_driver = {
+        .name = "tcic-pcmcia",
+        .bus = &platform_bus_type,
+        .suspend = tcic_drv_suspend,
+        .resume = tcic_drv_resume,
+};
+
+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 (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 ");
+        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);
+        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(", %d sockets\n" KERN_INFO "  irq list (", sockets);
+    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, 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.dev = &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);
+    driver_unregister(&tcic_driver);
+} /* exit_tcic */
+
+/*====================================================================*/
+
+static irqreturn_t 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 IRQ_NONE;
+    } else
+        active = 1;
+
+    debug(2, "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;
+    
+    debug(2, "interrupt done\n");
+    return IRQ_HANDLED;
+} /* tcic_interrupt */
+
+static void tcic_timer(u_long data)
+{
+    debug(2, "tcic_timer()\n");
+    tcic_timer_pending = 0;
+    tcic_interrupt(0, NULL, 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;
+    debug(1, "GetStatus(%d) = %#2.2x\n", psock, *value);
+    return 0;
+} /* tcic_get_status */
+  
+/*====================================================================*/
+
+static int tcic_get_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;
+    
+    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, "GetSocket(%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);
+    return 0;
+} /* tcic_get_socket */
+
+/*====================================================================*/
+
+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;
+
+    debug(1, "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;
+    
+    debug(1, "SetIOMap(%d, %d, %#2.2x, %d ns, "
+          "%#lx-%#lx)\n", psock, 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_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;
+
+    debug(1, "SetMemMap(%d, %d, %#2.2x, %d ns, "
+          "%#lx-%#lx, %#x)\n", psock, mem->map, mem->flags,
+          mem->speed, mem->res->start, 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,
+        .get_socket        = tcic_get_socket,
+        .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);