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path: root/drivers/pcmcia/pd6729.c
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-rw-r--r--drivers/pcmcia/pd6729.c871
1 files changed, 871 insertions, 0 deletions
diff --git a/drivers/pcmcia/pd6729.c b/drivers/pcmcia/pd6729.c
new file mode 100644
index 000000000000..3f4364341d8d
--- /dev/null
+++ b/drivers/pcmcia/pd6729.c
@@ -0,0 +1,871 @@
+/*
+ * Driver for the Cirrus PD6729 PCI-PCMCIA bridge.
+ *
+ * Based on the i82092.c driver.
+ *
+ * This software may be used and distributed according to the terms of
+ * the GNU General Public License, incorporated herein by reference.
+ */
+
+#include <linux/kernel.h>
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/workqueue.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+
+#include <pcmcia/cs_types.h>
+#include <pcmcia/ss.h>
+#include <pcmcia/cs.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+
+#include "pd6729.h"
+#include "i82365.h"
+#include "cirrus.h"
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Driver for the Cirrus PD6729 PCI-PCMCIA bridge");
+MODULE_AUTHOR("Jun Komuro <komurojun-mbn@nifty.com>");
+
+#define MAX_SOCKETS 2
+
+/*
+ * simple helper functions
+ * External clock time, in nanoseconds. 120 ns = 8.33 MHz
+ */
+#define to_cycles(ns) ((ns)/120)
+
+#ifndef NO_IRQ
+#define NO_IRQ ((unsigned int)(0))
+#endif
+
+/*
+ * PARAMETERS
+ * irq_mode=n
+ * Specifies the interrupt delivery mode. The default (1) is to use PCI
+ * interrupts; a value of 0 selects ISA interrupts. This must be set for
+ * correct operation of PCI card readers.
+ *
+ * irq_list=i,j,...
+ * This list limits the set of interrupts that can be used by PCMCIA
+ * cards.
+ * The default list is 3,4,5,7,9,10,11.
+ * (irq_list parameter is not used, if irq_mode = 1)
+ */
+
+static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */
+static int irq_list[16];
+static int irq_list_count = 0;
+
+module_param(irq_mode, int, 0444);
+module_param_array(irq_list, int, &irq_list_count, 0444);
+MODULE_PARM_DESC(irq_mode,
+ "interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1");
+MODULE_PARM_DESC(irq_list, "interrupts that can be used by PCMCIA cards");
+
+static DEFINE_SPINLOCK(port_lock);
+
+/* basic value read/write functions */
+
+static unsigned char indirect_read(struct pd6729_socket *socket,
+ unsigned short reg)
+{
+ unsigned long port;
+ unsigned char val;
+ unsigned long flags;
+
+ spin_lock_irqsave(&port_lock, flags);
+ reg += socket->number * 0x40;
+ port = socket->io_base;
+ outb(reg, port);
+ val = inb(port + 1);
+ spin_unlock_irqrestore(&port_lock, flags);
+
+ return val;
+}
+
+static unsigned short indirect_read16(struct pd6729_socket *socket,
+ unsigned short reg)
+{
+ unsigned long port;
+ unsigned short tmp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&port_lock, flags);
+ reg = reg + socket->number * 0x40;
+ port = socket->io_base;
+ outb(reg, port);
+ tmp = inb(port + 1);
+ reg++;
+ outb(reg, port);
+ tmp = tmp | (inb(port + 1) << 8);
+ spin_unlock_irqrestore(&port_lock, flags);
+
+ return tmp;
+}
+
+static void indirect_write(struct pd6729_socket *socket, unsigned short reg,
+ unsigned char value)
+{
+ unsigned long port;
+ unsigned long flags;
+
+ spin_lock_irqsave(&port_lock, flags);
+ reg = reg + socket->number * 0x40;
+ port = socket->io_base;
+ outb(reg, port);
+ outb(value, port + 1);
+ spin_unlock_irqrestore(&port_lock, flags);
+}
+
+static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg,
+ unsigned char mask)
+{
+ unsigned long port;
+ unsigned char val;
+ unsigned long flags;
+
+ spin_lock_irqsave(&port_lock, flags);
+ reg = reg + socket->number * 0x40;
+ port = socket->io_base;
+ outb(reg, port);
+ val = inb(port + 1);
+ val |= mask;
+ outb(reg, port);
+ outb(val, port + 1);
+ spin_unlock_irqrestore(&port_lock, flags);
+}
+
+static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg,
+ unsigned char mask)
+{
+ unsigned long port;
+ unsigned char val;
+ unsigned long flags;
+
+ spin_lock_irqsave(&port_lock, flags);
+ reg = reg + socket->number * 0x40;
+ port = socket->io_base;
+ outb(reg, port);
+ val = inb(port + 1);
+ val &= ~mask;
+ outb(reg, port);
+ outb(val, port + 1);
+ spin_unlock_irqrestore(&port_lock, flags);
+}
+
+static void indirect_write16(struct pd6729_socket *socket, unsigned short reg,
+ unsigned short value)
+{
+ unsigned long port;
+ unsigned char val;
+ unsigned long flags;
+
+ spin_lock_irqsave(&port_lock, flags);
+ reg = reg + socket->number * 0x40;
+ port = socket->io_base;
+
+ outb(reg, port);
+ val = value & 255;
+ outb(val, port + 1);
+
+ reg++;
+
+ outb(reg, port);
+ val = value >> 8;
+ outb(val, port + 1);
+ spin_unlock_irqrestore(&port_lock, flags);
+}
+
+/* Interrupt handler functionality */
+
+static irqreturn_t pd6729_interrupt(int irq, void *dev, struct pt_regs *regs)
+{
+ struct pd6729_socket *socket = (struct pd6729_socket *)dev;
+ int i;
+ int loopcount = 0;
+ int handled = 0;
+ unsigned int events, active = 0;
+
+ while (1) {
+ loopcount++;
+ if (loopcount > 20) {
+ printk(KERN_ERR "pd6729: infinite eventloop "
+ "in interrupt\n");
+ break;
+ }
+
+ active = 0;
+
+ for (i = 0; i < MAX_SOCKETS; i++) {
+ unsigned int csc;
+
+ /* card status change register */
+ csc = indirect_read(&socket[i], I365_CSC);
+ if (csc == 0) /* no events on this socket */
+ continue;
+
+ handled = 1;
+ events = 0;
+
+ if (csc & I365_CSC_DETECT) {
+ events |= SS_DETECT;
+ dprintk("Card detected in socket %i!\n", i);
+ }
+
+ if (indirect_read(&socket[i], I365_INTCTL)
+ & I365_PC_IOCARD) {
+ /* For IO/CARDS, bit 0 means "read the card" */
+ events |= (csc & I365_CSC_STSCHG)
+ ? SS_STSCHG : 0;
+ } else {
+ /* Check for battery/ready events */
+ events |= (csc & I365_CSC_BVD1)
+ ? SS_BATDEAD : 0;
+ events |= (csc & I365_CSC_BVD2)
+ ? SS_BATWARN : 0;
+ events |= (csc & I365_CSC_READY)
+ ? SS_READY : 0;
+ }
+
+ if (events) {
+ pcmcia_parse_events(&socket[i].socket, events);
+ }
+ active |= events;
+ }
+
+ if (active == 0) /* no more events to handle */
+ break;
+ }
+ return IRQ_RETVAL(handled);
+}
+
+/* socket functions */
+
+static void pd6729_interrupt_wrapper(unsigned long data)
+{
+ struct pd6729_socket *socket = (struct pd6729_socket *) data;
+
+ pd6729_interrupt(0, (void *)socket, NULL);
+ mod_timer(&socket->poll_timer, jiffies + HZ);
+}
+
+static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value)
+{
+ struct pd6729_socket *socket
+ = container_of(sock, struct pd6729_socket, socket);
+ unsigned int status;
+ unsigned int data;
+ struct pd6729_socket *t;
+
+ /* Interface Status Register */
+ status = indirect_read(socket, I365_STATUS);
+ *value = 0;
+
+ if ((status & I365_CS_DETECT) == I365_CS_DETECT) {
+ *value |= SS_DETECT;
+ }
+
+ /*
+ * IO cards have a different meaning of bits 0,1
+ * Also notice the inverse-logic on the bits
+ */
+ if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) {
+ /* IO card */
+ if (!(status & I365_CS_STSCHG))
+ *value |= SS_STSCHG;
+ } else {
+ /* non I/O card */
+ if (!(status & I365_CS_BVD1))
+ *value |= SS_BATDEAD;
+ if (!(status & I365_CS_BVD2))
+ *value |= SS_BATWARN;
+ }
+
+ if (status & I365_CS_WRPROT)
+ *value |= SS_WRPROT; /* card is write protected */
+
+ if (status & I365_CS_READY)
+ *value |= SS_READY; /* card is not busy */
+
+ if (status & I365_CS_POWERON)
+ *value |= SS_POWERON; /* power is applied to the card */
+
+ t = (socket->number) ? socket : socket + 1;
+ indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA);
+ data = indirect_read16(t, PD67_EXT_DATA);
+ *value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD;
+
+ return 0;
+}
+
+
+static int pd6729_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
+{
+ struct pd6729_socket *socket
+ = container_of(sock, struct pd6729_socket, socket);
+ unsigned char reg, vcc, vpp;
+
+ state->flags = 0;
+ state->Vcc = 0;
+ state->Vpp = 0;
+ state->io_irq = 0;
+ state->csc_mask = 0;
+
+ /* First the power status of the socket */
+ reg = indirect_read(socket, I365_POWER);
+
+ if (reg & I365_PWR_AUTO)
+ state->flags |= SS_PWR_AUTO; /* Automatic Power Switch */
+
+ if (reg & I365_PWR_OUT)
+ state->flags |= SS_OUTPUT_ENA; /* Output signals are enabled */
+
+ vcc = reg & I365_VCC_MASK; vpp = reg & I365_VPP1_MASK;
+
+ if (reg & I365_VCC_5V) {
+ state->Vcc = (indirect_read(socket, PD67_MISC_CTL_1) &
+ PD67_MC1_VCC_3V) ? 33 : 50;
+
+ if (vpp == I365_VPP1_5V) {
+ if (state->Vcc == 50)
+ state->Vpp = 50;
+ else
+ state->Vpp = 33;
+ }
+ if (vpp == I365_VPP1_12V)
+ state->Vpp = 120;
+ }
+
+ /* Now the IO card, RESET flags and IO interrupt */
+ reg = indirect_read(socket, I365_INTCTL);
+
+ if ((reg & I365_PC_RESET) == 0)
+ state->flags |= SS_RESET;
+ if (reg & I365_PC_IOCARD)
+ state->flags |= SS_IOCARD; /* This is an IO card */
+
+ /* Set the IRQ number */
+ state->io_irq = socket->card_irq;
+
+ /* Card status change */
+ reg = indirect_read(socket, I365_CSCINT);
+
+ if (reg & I365_CSC_DETECT)
+ state->csc_mask |= SS_DETECT; /* Card detect is enabled */
+
+ if (state->flags & SS_IOCARD) {/* IO Cards behave different */
+ if (reg & I365_CSC_STSCHG)
+ state->csc_mask |= SS_STSCHG;
+ } else {
+ if (reg & I365_CSC_BVD1)
+ state->csc_mask |= SS_BATDEAD;
+ if (reg & I365_CSC_BVD2)
+ state->csc_mask |= SS_BATWARN;
+ if (reg & I365_CSC_READY)
+ state->csc_mask |= SS_READY;
+ }
+
+ return 0;
+}
+
+static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
+{
+ struct pd6729_socket *socket
+ = container_of(sock, struct pd6729_socket, socket);
+ unsigned char reg, data;
+
+ /* First, set the global controller options */
+ indirect_write(socket, I365_GBLCTL, 0x00);
+ indirect_write(socket, I365_GENCTL, 0x00);
+
+ /* Values for the IGENC register */
+ socket->card_irq = state->io_irq;
+
+ reg = 0;
+ /* The reset bit has "inverse" logic */
+ if (!(state->flags & SS_RESET))
+ reg |= I365_PC_RESET;
+ if (state->flags & SS_IOCARD)
+ reg |= I365_PC_IOCARD;
+
+ /* IGENC, Interrupt and General Control Register */
+ indirect_write(socket, I365_INTCTL, reg);
+
+ /* Power registers */
+
+ reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
+
+ if (state->flags & SS_PWR_AUTO) {
+ dprintk("Auto power\n");
+ reg |= I365_PWR_AUTO; /* automatic power mngmnt */
+ }
+ if (state->flags & SS_OUTPUT_ENA) {
+ dprintk("Power Enabled\n");
+ reg |= I365_PWR_OUT; /* enable power */
+ }
+
+ switch (state->Vcc) {
+ case 0:
+ break;
+ case 33:
+ dprintk("setting voltage to Vcc to 3.3V on socket %i\n",
+ socket->number);
+ reg |= I365_VCC_5V;
+ indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
+ break;
+ case 50:
+ dprintk("setting voltage to Vcc to 5V on socket %i\n",
+ socket->number);
+ reg |= I365_VCC_5V;
+ indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
+ break;
+ default:
+ dprintk("pd6729: pd6729_set_socket called with "
+ "invalid VCC power value: %i\n",
+ state->Vcc);
+ return -EINVAL;
+ }
+
+ switch (state->Vpp) {
+ case 0:
+ dprintk("not setting Vpp on socket %i\n", socket->number);
+ break;
+ case 33:
+ case 50:
+ dprintk("setting Vpp to Vcc for socket %i\n", socket->number);
+ reg |= I365_VPP1_5V;
+ break;
+ case 120:
+ dprintk("setting Vpp to 12.0\n");
+ reg |= I365_VPP1_12V;
+ break;
+ default:
+ dprintk("pd6729: pd6729_set_socket called with invalid VPP power value: %i\n",
+ state->Vpp);
+ return -EINVAL;
+ }
+
+ /* only write if changed */
+ if (reg != indirect_read(socket, I365_POWER))
+ indirect_write(socket, I365_POWER, reg);
+
+ if (irq_mode == 1) {
+ /* all interrupts are to be done as PCI interrupts */
+ data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ;
+ } else
+ data = 0;
+
+ indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1);
+ indirect_write(socket, PD67_EXT_DATA, data);
+
+ /* Enable specific interrupt events */
+
+ reg = 0x00;
+ 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;
+ }
+ if (irq_mode == 1)
+ reg |= 0x30; /* management IRQ: PCI INTA# = "irq 3" */
+ indirect_write(socket, I365_CSCINT, reg);
+
+ reg = indirect_read(socket, I365_INTCTL);
+ if (irq_mode == 1)
+ reg |= 0x03; /* card IRQ: PCI INTA# = "irq 3" */
+ else
+ reg |= socket->card_irq;
+ indirect_write(socket, I365_INTCTL, reg);
+
+ /* now clear the (probably bogus) pending stuff by doing a dummy read */
+ (void)indirect_read(socket, I365_CSC);
+
+ return 0;
+}
+
+static int pd6729_set_io_map(struct pcmcia_socket *sock,
+ struct pccard_io_map *io)
+{
+ struct pd6729_socket *socket
+ = container_of(sock, struct pd6729_socket, socket);
+ unsigned char map, ioctl;
+
+ map = io->map;
+
+ /* Check error conditions */
+ if (map > 1) {
+ dprintk("pd6729_set_io_map with invalid map");
+ return -EINVAL;
+ }
+
+ /* Turn off the window before changing anything */
+ if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map))
+ indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
+
+ /* dprintk("set_io_map: Setting range to %x - %x\n",
+ io->start, io->stop);*/
+
+ /* write the new values */
+ indirect_write16(socket, I365_IO(map)+I365_W_START, io->start);
+ indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop);
+
+ ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(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);
+
+ indirect_write(socket, I365_IOCTL, ioctl);
+
+ /* Turn the window back on if needed */
+ if (io->flags & MAP_ACTIVE)
+ indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
+
+ return 0;
+}
+
+static int pd6729_set_mem_map(struct pcmcia_socket *sock,
+ struct pccard_mem_map *mem)
+{
+ struct pd6729_socket *socket
+ = container_of(sock, struct pd6729_socket, socket);
+ unsigned short base, i;
+ unsigned char map;
+
+ map = mem->map;
+ if (map > 4) {
+ printk("pd6729_set_mem_map: invalid map");
+ return -EINVAL;
+ }
+
+ if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) {
+ printk("pd6729_set_mem_map: invalid address / speed");
+ return -EINVAL;
+ }
+
+ /* Turn off the window before changing anything */
+ if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map))
+ indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
+
+ /* write the start address */
+ 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;
+ indirect_write16(socket, base + I365_W_START, i);
+
+ /* write the stop address */
+
+ 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;
+ }
+
+ indirect_write16(socket, base + I365_W_STOP, i);
+
+ /* Take care of high byte */
+ indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map));
+ indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24);
+
+ /* card start */
+
+ i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
+ if (mem->flags & MAP_WRPROT)
+ i |= I365_MEM_WRPROT;
+ if (mem->flags & MAP_ATTRIB) {
+ /* dprintk("requesting attribute memory for socket %i\n",
+ socket->number);*/
+ i |= I365_MEM_REG;
+ } else {
+ /* dprintk("requesting normal memory for socket %i\n",
+ socket->number);*/
+ }
+ indirect_write16(socket, base + I365_W_OFF, i);
+
+ /* Enable the window if necessary */
+ if (mem->flags & MAP_ACTIVE)
+ indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
+
+ return 0;
+}
+
+static int pd6729_init(struct pcmcia_socket *sock)
+{
+ int i;
+ struct resource res = { .end = 0x0fff };
+ pccard_io_map io = { 0, 0, 0, 0, 1 };
+ pccard_mem_map mem = { .res = &res, };
+
+ pd6729_set_socket(sock, &dead_socket);
+ for (i = 0; i < 2; i++) {
+ io.map = i;
+ pd6729_set_io_map(sock, &io);
+ }
+ for (i = 0; i < 5; i++) {
+ mem.map = i;
+ pd6729_set_mem_map(sock, &mem);
+ }
+
+ return 0;
+}
+
+
+/* the pccard structure and its functions */
+static struct pccard_operations pd6729_operations = {
+ .init = pd6729_init,
+ .get_status = pd6729_get_status,
+ .get_socket = pd6729_get_socket,
+ .set_socket = pd6729_set_socket,
+ .set_io_map = pd6729_set_io_map,
+ .set_mem_map = pd6729_set_mem_map,
+};
+
+static irqreturn_t pd6729_test(int irq, void *dev, struct pt_regs *regs)
+{
+ dprintk("-> hit on irq %d\n", irq);
+ return IRQ_HANDLED;
+}
+
+static int pd6729_check_irq(int irq, int flags)
+{
+ if (request_irq(irq, pd6729_test, flags, "x", pd6729_test) != 0)
+ return -1;
+ free_irq(irq, pd6729_test);
+ return 0;
+}
+
+static u_int __init pd6729_isa_scan(void)
+{
+ u_int mask0, mask = 0;
+ int i;
+
+ if (irq_mode == 1) {
+ printk(KERN_INFO "pd6729: PCI card interrupts, "
+ "PCI status changes\n");
+ return 0;
+ }
+
+ if (irq_list_count == 0)
+ mask0 = 0xffff;
+ else
+ for (i = mask0 = 0; i < irq_list_count; i++)
+ mask0 |= (1<<irq_list[i]);
+
+ mask0 &= PD67_MASK;
+
+ /* just find interrupts that aren't in use */
+ for (i = 0; i < 16; i++)
+ if ((mask0 & (1 << i)) && (pd6729_check_irq(i, 0) == 0))
+ mask |= (1 << i);
+
+ printk(KERN_INFO "pd6729: ISA irqs = ");
+ for (i = 0; i < 16; i++)
+ if (mask & (1<<i))
+ printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i);
+
+ if (mask == 0) printk("none!");
+
+ printk(" polling status changes.\n");
+
+ return mask;
+}
+
+static int __devinit pd6729_pci_probe(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ int i, j, ret;
+ u_int mask;
+ char configbyte;
+ struct pd6729_socket *socket;
+
+ socket = kmalloc(sizeof(struct pd6729_socket) * MAX_SOCKETS,
+ GFP_KERNEL);
+ if (!socket)
+ return -ENOMEM;
+
+ memset(socket, 0, sizeof(struct pd6729_socket) * MAX_SOCKETS);
+
+ if ((ret = pci_enable_device(dev)))
+ goto err_out_free_mem;
+
+ printk(KERN_INFO "pd6729: Cirrus PD6729 PCI to PCMCIA Bridge "
+ "at 0x%lx on irq %d\n", pci_resource_start(dev, 0), dev->irq);
+ /*
+ * Since we have no memory BARs some firmware may not
+ * have had PCI_COMMAND_MEMORY enabled, yet the device needs it.
+ */
+ pci_read_config_byte(dev, PCI_COMMAND, &configbyte);
+ if (!(configbyte & PCI_COMMAND_MEMORY)) {
+ printk(KERN_DEBUG "pd6729: Enabling PCI_COMMAND_MEMORY.\n");
+ configbyte |= PCI_COMMAND_MEMORY;
+ pci_write_config_byte(dev, PCI_COMMAND, configbyte);
+ }
+
+ ret = pci_request_regions(dev, "pd6729");
+ if (ret) {
+ printk(KERN_INFO "pd6729: pci request region failed.\n");
+ goto err_out_disable;
+ }
+
+ if (dev->irq == NO_IRQ)
+ irq_mode = 0; /* fall back to ISA interrupt mode */
+
+ mask = pd6729_isa_scan();
+ if (irq_mode == 0 && mask == 0) {
+ printk(KERN_INFO "pd6729: no ISA interrupt is available.\n");
+ goto err_out_free_res;
+ }
+
+ for (i = 0; i < MAX_SOCKETS; i++) {
+ socket[i].io_base = pci_resource_start(dev, 0);
+ socket[i].socket.features |= SS_CAP_PCCARD;
+ socket[i].socket.map_size = 0x1000;
+ socket[i].socket.irq_mask = mask;
+ socket[i].socket.pci_irq = dev->irq;
+ socket[i].socket.owner = THIS_MODULE;
+
+ socket[i].number = i;
+
+ socket[i].socket.ops = &pd6729_operations;
+ socket[i].socket.resource_ops = &pccard_nonstatic_ops;
+ socket[i].socket.dev.dev = &dev->dev;
+ socket[i].socket.driver_data = &socket[i];
+ }
+
+ pci_set_drvdata(dev, socket);
+ if (irq_mode == 1) {
+ /* Register the interrupt handler */
+ if ((ret = request_irq(dev->irq, pd6729_interrupt, SA_SHIRQ,
+ "pd6729", socket))) {
+ printk(KERN_ERR "pd6729: Failed to register irq %d, "
+ "aborting\n", dev->irq);
+ goto err_out_free_res;
+ }
+ } else {
+ /* poll Card status change */
+ init_timer(&socket->poll_timer);
+ socket->poll_timer.function = pd6729_interrupt_wrapper;
+ socket->poll_timer.data = (unsigned long)socket;
+ socket->poll_timer.expires = jiffies + HZ;
+ add_timer(&socket->poll_timer);
+ }
+
+ for (i = 0; i < MAX_SOCKETS; i++) {
+ ret = pcmcia_register_socket(&socket[i].socket);
+ if (ret) {
+ printk(KERN_INFO "pd6729: pcmcia_register_socket "
+ "failed.\n");
+ for (j = 0; j < i ; j++)
+ pcmcia_unregister_socket(&socket[j].socket);
+ goto err_out_free_res2;
+ }
+ }
+
+ return 0;
+
+ err_out_free_res2:
+ if (irq_mode == 1)
+ free_irq(dev->irq, socket);
+ else
+ del_timer_sync(&socket->poll_timer);
+ err_out_free_res:
+ pci_release_regions(dev);
+ err_out_disable:
+ pci_disable_device(dev);
+
+ err_out_free_mem:
+ kfree(socket);
+ return ret;
+}
+
+static void __devexit pd6729_pci_remove(struct pci_dev *dev)
+{
+ int i;
+ struct pd6729_socket *socket = pci_get_drvdata(dev);
+
+ for (i = 0; i < MAX_SOCKETS; i++) {
+ /* Turn off all interrupt sources */
+ indirect_write(&socket[i], I365_CSCINT, 0);
+ indirect_write(&socket[i], I365_INTCTL, 0);
+
+ pcmcia_unregister_socket(&socket[i].socket);
+ }
+
+ if (irq_mode == 1)
+ free_irq(dev->irq, socket);
+ else
+ del_timer_sync(&socket->poll_timer);
+ pci_release_regions(dev);
+ pci_disable_device(dev);
+
+ kfree(socket);
+}
+
+static int pd6729_socket_suspend(struct pci_dev *dev, pm_message_t state)
+{
+ return pcmcia_socket_dev_suspend(&dev->dev, state);
+}
+
+static int pd6729_socket_resume(struct pci_dev *dev)
+{
+ return pcmcia_socket_dev_resume(&dev->dev);
+}
+
+static struct pci_device_id pd6729_pci_ids[] = {
+ {
+ .vendor = PCI_VENDOR_ID_CIRRUS,
+ .device = PCI_DEVICE_ID_CIRRUS_6729,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);
+
+static struct pci_driver pd6729_pci_drv = {
+ .name = "pd6729",
+ .id_table = pd6729_pci_ids,
+ .probe = pd6729_pci_probe,
+ .remove = __devexit_p(pd6729_pci_remove),
+ .suspend = pd6729_socket_suspend,
+ .resume = pd6729_socket_resume,
+};
+
+static int pd6729_module_init(void)
+{
+ return pci_register_driver(&pd6729_pci_drv);
+}
+
+static void pd6729_module_exit(void)
+{
+ pci_unregister_driver(&pd6729_pci_drv);
+}
+
+module_init(pd6729_module_init);
+module_exit(pd6729_module_exit);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 00:00:44 +0100