i82092.c
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上传日期:2013-02-24
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文件大小:22k
- /*
- * Driver for Intel I82092AA PCI-PCMCIA bridge.
- *
- * (C) 2001 Red Hat, Inc.
- *
- * Author: Arjan Van De Ven <arjanv@redhat.com>
- * Loosly based on i82365.c from the pcmcia-cs package
- *
- * $Id: i82092aa.c,v 1.2 2001/10/23 14:43:34 arjanv Exp $
- */
- #include <linux/kernel.h>
- #include <linux/config.h>
- #include <linux/module.h>
- #include <linux/pci.h>
- #include <linux/init.h>
- #include <pcmcia/cs_types.h>
- #include <pcmcia/ss.h>
- #include <pcmcia/cs.h>
- #include <asm/system.h>
- #include <asm/io.h>
- #include "i82092aa.h"
- #include "i82365.h"
- /* PCI core routines */
- static struct pci_device_id i82092aa_pci_ids[] = {
- {
- vendor:PCI_VENDOR_ID_INTEL,
- device:PCI_DEVICE_ID_INTEL_82092AA_0,
- subvendor:PCI_ANY_ID,
- subdevice:PCI_ANY_ID,
- class: 0, class_mask:0,
- },
- {}
- };
- static struct pci_driver i82092aa_pci_drv = {
- name: "i82092aa",
- id_table: i82092aa_pci_ids,
- probe: i82092aa_pci_probe,
- remove: __devexit_p(i82092aa_pci_remove),
- suspend: NULL,
- resume: NULL
- };
- /* the pccard structure and its functions */
- static struct pccard_operations i82092aa_operations = {
- init: i82092aa_init,
- suspend: i82092aa_suspend,
- register_callback: i82092aa_register_callback,
- inquire_socket: i82092aa_inquire_socket,
- get_status: i82092aa_get_status,
- get_socket: i82092aa_get_socket,
- set_socket: i82092aa_set_socket,
- get_io_map: i82092aa_get_io_map,
- set_io_map: i82092aa_set_io_map,
- get_mem_map: i82092aa_get_mem_map,
- set_mem_map: i82092aa_set_mem_map,
- proc_setup: i82092aa_proc_setup,
- };
- /* The card can do upto 4 sockets, allocate a structure for each of them */
- struct socket_info {
- int card_state; /* 0 = no socket,
- 1 = empty socket,
- 2 = card but not initialized,
- 3 = operational card */
- int io_base; /* base io address of the socket */
- socket_cap_t cap;
-
- unsigned int pending_events; /* Pending events on this interface */
-
- void (*handler)(void *info, u_int events);
- /* callback to the driver of the card */
- void *info; /* to be passed to the handler */
-
- struct pci_dev *dev; /* The PCI device for the socket */
- };
- #define MAX_SOCKETS 4
- static struct socket_info sockets[MAX_SOCKETS];
- static int socket_count; /* shortcut */
- static int __init i82092aa_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
- {
- unsigned char configbyte;
- int i;
-
- enter("i82092aa_pci_probe");
-
- if (pci_enable_device(dev))
- return -EIO;
-
- pci_read_config_byte(dev, 0x40, &configbyte); /* PCI Configuration Control */
- switch(configbyte&6) {
- case 0:
- printk(KERN_INFO "i82092aa: configured as a 2 socket device.n");
- socket_count = 2;
- break;
- case 2:
- printk(KERN_INFO "i82092aa: configured as a 1 socket device.n");
- socket_count = 1;
- break;
- case 4:
- case 6:
- printk(KERN_INFO "i82092aa: configured as a 4 socket device.n");
- socket_count = 4;
- break;
-
- default:
- printk(KERN_ERR "i82092aa: Oops, you did something we didn't think of.n");
- return -EIO;
- break;
- }
-
- for (i = 0;i<socket_count;i++) {
- sockets[i].card_state = 1; /* 1 = present but empty */
- sockets[i].io_base = (dev->resource[0].start & ~1);
- if (sockets[i].io_base > 0)
- request_region(sockets[i].io_base, 2, "i82092aa");
-
-
- sockets[i].cap.features |= SS_CAP_PCCARD;
- sockets[i].cap.map_size = 0x1000;
- sockets[i].cap.irq_mask = 0;
- sockets[i].cap.pci_irq = dev->irq;
-
- if (card_present(i)) {
- sockets[i].card_state = 3;
- dprintk(KERN_DEBUG "i82092aa: slot %i is occupiedn",i);
- } else {
- dprintk(KERN_DEBUG "i82092aa: slot %i is vacantn",i);
- }
- }
-
- /* Now, specifiy that all interrupts are to be done as PCI interrupts */
- configbyte = 0xFF; /* bitmask, one bit per event, 1 = PCI interrupt, 0 = ISA interrupt */
- pci_write_config_byte(dev, 0x50, configbyte); /* PCI Interrupt Routing Register */
- /* Register the interrupt handler */
- dprintk(KERN_DEBUG "Requesting interrupt %i n",dev->irq);
- if (request_irq(dev->irq, i82092aa_interrupt, SA_SHIRQ, "i82092aa", i82092aa_interrupt)) {
- printk(KERN_ERR "i82092aa: Failed to register IRQ %d, abortingn", dev->irq);
- return -EIO;
- }
-
-
- if (register_ss_entry(socket_count, &i82092aa_operations) != 0)
- printk(KERN_NOTICE "i82092aa: register_ss_entry() failedn");
- leave("i82092aa_pci_probe");
- return 0;
- }
- static void __devexit i82092aa_pci_remove(struct pci_dev *dev)
- {
- enter("i82092aa_pci_remove");
-
- free_irq(dev->irq, i82092aa_interrupt);
- leave("i82092aa_pci_remove");
- }
- static spinlock_t port_lock = SPIN_LOCK_UNLOCKED;
- /* basic value read/write functions */
- static unsigned char indirect_read(int socket, unsigned short reg)
- {
- unsigned short int port;
- unsigned char val;
- unsigned long flags;
- spin_lock_irqsave(&port_lock,flags);
- reg += socket * 0x40;
- port = sockets[socket].io_base;
- outb(reg,port);
- val = inb(port+1);
- spin_unlock_irqrestore(&port_lock,flags);
- return val;
- }
- static unsigned short indirect_read16(int socket, unsigned short reg)
- {
- unsigned short int port;
- unsigned short tmp;
- unsigned long flags;
- spin_lock_irqsave(&port_lock,flags);
- reg = reg + socket * 0x40;
- port = sockets[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(int socket, unsigned short reg, unsigned char value)
- {
- unsigned short int port;
- unsigned long flags;
- spin_lock_irqsave(&port_lock,flags);
- reg = reg + socket * 0x40;
- port = sockets[socket].io_base;
- outb(reg,port);
- outb(value,port+1);
- spin_unlock_irqrestore(&port_lock,flags);
- }
- static void indirect_setbit(int socket, unsigned short reg, unsigned char mask)
- {
- unsigned short int port;
- unsigned char val;
- unsigned long flags;
- spin_lock_irqsave(&port_lock,flags);
- reg = reg + socket * 0x40;
- port = sockets[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(int socket, unsigned short reg, unsigned char mask)
- {
- unsigned short int port;
- unsigned char val;
- unsigned long flags;
- spin_lock_irqsave(&port_lock,flags);
- reg = reg + socket * 0x40;
- port = sockets[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(int socket, unsigned short reg, unsigned short value)
- {
- unsigned short int port;
- unsigned char val;
- unsigned long flags;
- spin_lock_irqsave(&port_lock,flags);
- reg = reg + socket * 0x40;
- port = sockets[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);
- }
- /* simple helper functions */
- /* External clock time, in nanoseconds. 120 ns = 8.33 MHz */
- static int cycle_time = 120;
- static int to_cycles(int ns)
- {
- if (cycle_time!=0)
- return ns/cycle_time;
- else
- return 0;
- }
-
- static int to_ns(int cycles)
- {
- return cycle_time*cycles;
- }
- /* Interrupt handler functionality */
- static void i82092aa_bh(void *dummy)
- {
- unsigned int events;
- int i;
-
- for (i=0; i < socket_count; i++) {
- events = xchg(&(sockets[i].pending_events),0);
- printk("events = %x n",events);
- if (sockets[i].handler)
- sockets[i].handler(sockets[i].info, events);
- }
- }
-
- static struct tq_struct i82092aa_task = {
- routine: i82092aa_bh
- };
-
- static void i82092aa_interrupt(int irq, void *dev, struct pt_regs *regs)
- {
- int i;
- int loopcount = 0;
-
- unsigned int events, active=0;
-
- /* enter("i82092aa_interrupt");*/
-
- while (1) {
- loopcount++;
- if (loopcount>20) {
- printk(KERN_ERR "i82092aa: infinite eventloop in interrupt n");
- break;
- }
-
- active = 0;
-
- for (i=0;i<socket_count;i++) {
- int csc;
- if (sockets[i].card_state==0) /* Inactive socket, should not happen */
- continue;
-
- csc = indirect_read(i,I365_CSC); /* card status change register */
-
- if ((csc==0) || /* no events on this socket */
- (sockets[i].handler==NULL)) /* no way to handle events */
- continue;
- events = 0;
-
- if (csc & I365_CSC_DETECT) {
- events |= SS_DETECT;
- printk("Card detected in socket %i!n",i);
- }
-
- if (indirect_read(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) {
- sockets[i].pending_events |= events;
- schedule_task(&i82092aa_task);
- }
- active |= events;
- }
-
- if (active==0) /* no more events to handle */
- break;
-
- }
-
- /* leave("i82092aa_interrupt");*/
- }
- /* socket functions */
- static int card_present(int socketno)
- {
- unsigned int val;
- enter("card_present");
-
- if ((socketno<0) || (socketno > MAX_SOCKETS))
- return 0;
- if (sockets[socketno].io_base == 0)
- return 0;
-
- val = indirect_read(socketno, 1); /* Interface status register */
- if ((val&12)==12) {
- leave("card_present 1");
- return 1;
- }
-
- leave("card_present 0");
- return 0;
- }
- static void set_bridge_state(int sock)
- {
- enter("set_bridge_state");
- indirect_write(sock, I365_GBLCTL,0x00);
- indirect_write(sock, I365_GENCTL,0x00);
-
- indirect_setbit(sock, I365_INTCTL,0x08);
- leave("set_bridge_state");
- }
-
- static int i82092aa_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 };
-
- enter("i82092aa_init");
-
- mem.sys_stop = 0x0fff;
- i82092aa_set_socket(s, &dead_socket);
- for (i = 0; i < 2; i++) {
- io.map = i;
- i82092aa_set_io_map(s, &io);
- }
- for (i = 0; i < 5; i++) {
- mem.map = i;
- i82092aa_set_mem_map(s, &mem);
- }
-
- leave("i82092aa_init");
- return 0;
- }
-
- static int i82092aa_suspend(unsigned int sock)
- {
- int retval;
- enter("i82092aa_suspend");
- retval = i82092aa_set_socket(sock, &dead_socket);
- leave("i82092aa_suspend");
- return retval;
- }
-
- static int i82092aa_register_callback(unsigned int sock, void (*handler)(void *, unsigned int), void * info)
- {
- enter("i82092aa_register_callback");
- sockets[sock].handler = handler;
- sockets[sock].info = info;
- if (handler == NULL) {
- MOD_DEC_USE_COUNT;
- } else {
- MOD_INC_USE_COUNT;
- }
- leave("i82092aa_register_callback");
- return 0;
- } /* i82092aa_register_callback */
-
- static int i82092aa_inquire_socket(unsigned int sock, socket_cap_t *cap)
- {
- enter("i82092aa_inquire_socket");
- *cap = sockets[sock].cap;
- leave("i82092aa_inquire_socket");
- return 0;
- } /* i82092aa_inquire_socket */
- static int i82092aa_get_status(unsigned int sock, u_int *value)
- {
- unsigned int status;
-
- enter("i82092aa_get_status");
-
- status = indirect_read(sock,I365_STATUS); /* Interface Status Register */
- *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(sock, 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 */
- leave("i82092aa_get_status");
- return 0;
- }
- static int i82092aa_get_socket(unsigned int sock, socket_state_t *state)
- {
- unsigned char reg,vcc,vpp;
-
- enter("i82092aa_get_socket");
- 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(sock,I365_POWER); /* PCTRL - Power Control Register */
- 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) { /* Can still be 3.3V, in this case the Vcc value will be overwritten later */
- state->Vcc = 50;
-
- if (vpp == I365_VPP1_5V)
- state->Vpp = 50;
- if (vpp == I365_VPP1_12V)
- state->Vpp = 120;
-
- }
-
- if ((reg & I365_VCC_3V)==I365_VCC_3V)
- state->Vcc = 33;
-
-
- /* Now the IO card, RESET flags and IO interrupt */
-
- reg = indirect_read(sock, I365_INTCTL); /* IGENC, Interrupt and General Control */
-
- 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 */
- if (sockets[sock].dev!=NULL)
- state->io_irq = sockets[sock].dev->irq;
-
- /* Card status change */
- reg = indirect_read(sock, I365_CSCINT); /* CSCICR, Card Status Change Interrupt Configuration */
-
- 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;
- }
-
- leave("i82092aa_get_socket");
- return 0;
- }
- static int i82092aa_set_socket(unsigned int sock, socket_state_t *state)
- {
- unsigned char reg;
-
- enter("i82092aa_set_socket");
-
- /* First, set the global controller options */
-
- set_bridge_state(sock);
-
- /* Values for the IGENC register */
-
- reg = 0;
- if (!(state->flags & SS_RESET)) /* The reset bit has "inverse" logic */
- reg = reg | I365_PC_RESET;
- if (state->flags & SS_IOCARD)
- reg = reg | I365_PC_IOCARD;
-
- indirect_write(sock,I365_INTCTL,reg); /* IGENC, Interrupt and General Control Register */
-
- /* Power registers */
-
- reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
-
- if (state->flags & SS_PWR_AUTO) {
- printk("Auto powern");
- reg |= I365_PWR_AUTO; /* automatic power mngmnt */
- }
- if (state->flags & SS_OUTPUT_ENA) {
- printk("Power Enabled n");
- reg |= I365_PWR_OUT; /* enable power */
- }
-
- switch (state->Vcc) {
- case 0:
- break;
- case 50:
- printk("setting voltage to Vcc to 5V on socket %in",sock);
- reg |= I365_VCC_5V;
- break;
- default:
- printk("i82092aa: i82092aa_set_socket called with invalid VCC power value: %i ", state->Vcc);
- leave("i82092aa_set_socket");
- return -EINVAL;
- }
-
-
- switch (state->Vpp) {
- case 0:
- printk("not setting Vpp on socket %in",sock);
- break;
- case 50:
- printk("setting Vpp to 5.0 for socket %in",sock);
- reg |= I365_VPP1_5V | I365_VPP2_5V;
- break;
- case 120:
- printk("setting Vpp to 12.0n");
- reg |= I365_VPP1_12V | I365_VPP2_12V;
- break;
- default:
- printk("i82092aa: i82092aa_set_socket called with invalid VPP power value: %i ", state->Vcc);
- leave("i82092aa_set_socket");
- return -EINVAL;
- }
-
- if (reg != indirect_read(sock,I365_POWER)) /* only write if changed */
- indirect_write(sock,I365_POWER,reg);
-
- /* 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;
-
- }
-
- /* now write the value and clear the (probably bogus) pending stuff by doing a dummy read*/
-
- indirect_write(sock,I365_CSCINT,reg);
- (void)indirect_read(sock,I365_CSC);
- leave("i82092aa_set_socket");
- return 0;
- }
- static int i82092aa_get_io_map(unsigned int sock, struct pccard_io_map *io)
- {
- unsigned char map, ioctl, addr;
-
- enter("i82092aa_get_io_map");
- map = io->map;
- if (map > 1) {
- leave("i82092aa_get_io_map with -EINVAL");
- return -EINVAL;
- }
-
- /* FIXME: How does this fit in with the PCI resource (re)allocation */
- io->start = indirect_read16(sock, I365_IO(map)+I365_W_START);
- io->stop = indirect_read16(sock, I365_IO(map)+I365_W_START);
-
- ioctl = indirect_read(sock,I365_IOCTL); /* IOCREG: I/O Control Register */
- addr = indirect_read(sock,I365_ADDRWIN); /* */
-
- io->speed = to_ns(ioctl & I365_IOCTL_WAIT(map)) ? 1 : 0; /* check this out later */
- io->flags = 0;
-
- if (addr & I365_IOCTL_16BIT(map))
- io->flags |= MAP_AUTOSZ;
-
- leave("i82092aa_get_io_map");
- return 0;
- }
- static int i82092aa_set_io_map(unsigned sock, struct pccard_io_map *io)
- {
- unsigned char map, ioctl;
-
- enter("i82092aa_set_io_map");
-
- map = io->map;
-
- /* Check error conditions */
- if (map > 1) {
- leave("i82092aa_set_io_map with invalid map");
- return -EINVAL;
- }
- if ((io->start > 0xffff) || (io->stop > 0xffff) || (io->stop < io->start)){
- leave("i82092aa_set_io_map with invalid io");
- return -EINVAL;
- }
- /* Turn off the window before changing anything */
- if (indirect_read(sock, I365_ADDRWIN) & I365_ENA_IO(map))
- indirect_resetbit(sock, I365_ADDRWIN, I365_ENA_IO(map));
- /* printk("set_io_map: Setting range to %x - %x n",io->start,io->stop); */
-
- /* write the new values */
- indirect_write16(sock,I365_IO(map)+I365_W_START,io->start);
- indirect_write16(sock,I365_IO(map)+I365_W_STOP,io->stop);
-
- ioctl = indirect_read(sock,I365_IOCTL) & ~I365_IOCTL_MASK(map);
-
- if (io->flags & (MAP_16BIT|MAP_AUTOSZ))
- ioctl |= I365_IOCTL_16BIT(map);
-
- indirect_write(sock,I365_IOCTL,ioctl);
-
- /* Turn the window back on if needed */
- if (io->flags & MAP_ACTIVE)
- indirect_setbit(sock,I365_ADDRWIN,I365_ENA_IO(map));
-
- leave("i82092aa_set_io_map");
- return 0;
- }
- static int i82092aa_get_mem_map(unsigned sock, struct pccard_mem_map *mem)
- {
- unsigned short base, i;
- unsigned char map, addr;
-
- enter("i82092aa_get_mem_map");
-
- mem->flags = 0;
- mem->speed = 0;
- map = mem->map;
- if (map > 4) {
- leave("i82092aa_get_mem_map: -EINVAL");
- return -EINVAL;
- }
-
- addr = indirect_read(sock, I365_ADDRWIN);
-
- if (addr & I365_ENA_MEM(map))
- mem->flags |= MAP_ACTIVE; /* yes this mapping is active */
-
- base = I365_MEM(map);
-
- /* Find the start address - this register also has mapping info */
-
- i = indirect_read16(sock,base+I365_W_START);
- if (i & I365_MEM_16BIT)
- mem->flags |= MAP_16BIT;
- if (i & I365_MEM_0WS)
- mem->flags |= MAP_0WS;
-
- mem->sys_start = ((unsigned long)(i & 0x0fff) << 12);
-
- /* Find the end address - this register also has speed info */
- i = indirect_read16(sock,base+I365_W_STOP);
- if (i & I365_MEM_WS0)
- mem->speed = 1;
- if (i & I365_MEM_WS1)
- mem->speed += 2;
- mem->speed = to_ns(mem->speed);
- mem->sys_stop = ( (unsigned long)(i & 0x0fff) << 12) + 0x0fff;
-
- /* Find the card start address, also some more MAP attributes */
-
- i = indirect_read16(sock, base+I365_W_OFF);
- if (i & I365_MEM_WRPROT)
- mem->flags |= MAP_WRPROT;
- if (i & I365_MEM_REG)
- mem->flags |= MAP_ATTRIB;
- mem->card_start = ( (unsigned long)(i & 0x3fff)<12) + mem->sys_start;
- mem->card_start &= 0x3ffffff;
-
- printk("Card %i is from %lx to %lx n",sock,mem->sys_start,mem->sys_stop);
-
- leave("i82092aa_get_mem_map");
- return 0;
-
- }
- static int i82092aa_set_mem_map(unsigned sock, struct pccard_mem_map *mem)
- {
- unsigned short base, i;
- unsigned char map;
-
- enter("i82092aa_set_mem_map");
-
- map = mem->map;
- if (map > 4) {
- leave("i82092aa_set_mem_map: invalid map");
- return -EINVAL;
- }
-
-
- if ( (mem->card_start > 0x3ffffff) || (mem->sys_start > mem->sys_stop) ||
- (mem->speed > 1000) ) {
- leave("i82092aa_set_mem_map: invalid address / speed");
- printk("invalid mem map for socket %i : %lx to %lx with a start of %x n",sock,mem->sys_start, mem->sys_stop, mem->card_start);
- return -EINVAL;
- }
-
- /* Turn off the window before changing anything */
- if (indirect_read(sock, I365_ADDRWIN) & I365_ENA_MEM(map))
- indirect_resetbit(sock, I365_ADDRWIN, I365_ENA_MEM(map));
-
-
- /* printk("set_mem_map: Setting map %i range to %x - %x on socket %i, speed is %i, active = %i n",map, mem->sys_start,mem->sys_stop,sock,mem->speed,mem->flags & MAP_ACTIVE); */
- /* write the start address */
- base = I365_MEM(map);
- i = (mem->sys_start >> 12) & 0x0fff;
- if (mem->flags & MAP_16BIT)
- i |= I365_MEM_16BIT;
- if (mem->flags & MAP_0WS)
- i |= I365_MEM_0WS;
- indirect_write16(sock,base+I365_W_START,i);
-
- /* write the stop address */
-
- i= (mem->sys_stop >> 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(sock,base+I365_W_STOP,i);
-
- /* card start */
-
- i = ((mem->card_start - mem->sys_start) >> 12) & 0x3fff;
- if (mem->flags & MAP_WRPROT)
- i |= I365_MEM_WRPROT;
- if (mem->flags & MAP_ATTRIB) {
- /* printk("requesting attribute memory for socket %in",sock);*/
- i |= I365_MEM_REG;
- } else {
- /* printk("requesting normal memory for socket %in",sock);*/
- }
- indirect_write16(sock,base+I365_W_OFF,i);
-
- /* Enable the window if necessary */
- if (mem->flags & MAP_ACTIVE)
- indirect_setbit(sock, I365_ADDRWIN, I365_ENA_MEM(map));
-
- leave("i82092aa_set_mem_map");
- return 0;
- }
- static void i82092aa_proc_setup(unsigned int sock, struct proc_dir_entry *base)
- {
-
- }
- /* Module stuff */
- static int i82092aa_module_init(void)
- {
- enter("i82092aa_module_init");
- pci_register_driver(&i82092aa_pci_drv);
- leave("i82092aa_module_init");
- return 0;
- }
- static void i82092aa_module_exit(void)
- {
- enter("i82092aa_module_exit");
- pci_unregister_driver(&i82092aa_pci_drv);
- unregister_ss_entry(&i82092aa_operations);
- if (sockets[0].io_base>0)
- release_region(sockets[0].io_base, 2);
- leave("i82092aa_module_exit");
- }
- module_init(i82092aa_module_init);
- module_exit(i82092aa_module_exit);