system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-11-05 18:22:52 +00:00
Code Issues Projects Releases Packages Wiki Activity
freebsd-src/sys/pccard/pcic.c
Warner Losh 6e73d499d8 Add probing support for the vadem VG365 and the Vadem VG465 pcic chips. 
We do the same thing we do with all the other Vadem chips and print the
right identification for these chips.  Tested with the 365, and inferred
for the 465.

This allows the cheapo PCMCIA card that I got from necx to print the right
chip number on boot.
1998-08-25 22:46:44 +00:00

1147 lines
27 KiB
C
Raw Blame History

/*
* Intel PCIC or compatible Controller driver
* May be built using LKM to make a loadable module.
*-------------------------------------------------------------------------
*
* Copyright (c) 1995 Andrew McRae. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* pcic98 : PC9801 original PCMCIA controller code for NS/A,Ne,NX/C,NR/L.
* by Noriyuki Hosobuchi <yj8n-hsbc@asahi-net.or.jp>
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/select.h>
#include <sys/interrupt.h>
#include <machine/clock.h>
#include <i386/isa/icu.h>
#include <i386/isa/isa_device.h>
#include <pccard/i82365.h>
#ifdef PC98
#include <pccard/pcic98reg.h>
#endif
#include <pccard/cardinfo.h>
#include <pccard/driver.h>
#include <pccard/slot.h>
/*
* Prototypes for interrupt handler.
*/
static inthand2_t pcicintr;
static int pcic_ioctl __P((struct slot *, int, caddr_t));
static int pcic_power __P((struct slot *));
static timeout_t pcic_reset;
static void pcic_resume(struct slot *);
static void pcic_disable __P((struct slot *));
static void pcic_mapirq __P((struct slot *, int));
static timeout_t pcictimeout;
static struct callout_handle pcictimeout_ch
= CALLOUT_HANDLE_INITIALIZER(&pcictimeout_ch);
#ifdef LKM
static int pcic_handle __P((struct lkm_table *lkmtp, int cmd));
#endif
static int pcic_memory(struct slot *, int);
static int pcic_io(struct slot *, int);
static u_int build_freelist(u_int);
/*
* Per-slot data table.
*/
static struct pcic_slot {
int slotnum; /* My slot number */
int index; /* Index register */
int data; /* Data register */
int offset; /* Offset value for index */
char controller; /* Device type */
char revision; /* Device Revision */
struct slot *slt; /* Back ptr to slot */
u_char (*getb)(struct pcic_slot *, int);
void (*putb)(struct pcic_slot *, int, u_char);
u_char *regs; /* Pointer to regs in mem */
} pcic_slots[PCIC_MAX_SLOTS];
static int pcic_irq;
static unsigned pcic_imask;
static struct slot_ctrl cinfo;
/*
* Internal inline functions for accessing the PCIC.
*/
/*
* Read a register from the PCIC.
*/
static __inline unsigned char
getb1(struct pcic_slot *sp, int reg)
{
outb(sp->index, sp->offset + reg);
return inb(sp->data);
}
static __inline unsigned char
getb2(struct pcic_slot *sp, int reg)
{
return (sp->regs[reg]);
}
/*
* Write a register on the PCIC
*/
static __inline void
putb1(struct pcic_slot *sp, int reg, unsigned char val)
{
outb(sp->index, sp->offset + reg);
outb(sp->data, val);
}
static __inline void
putb2(struct pcic_slot *sp, int reg, unsigned char val)
{
sp->regs[reg] = val;
}
/*
* Clear bit(s) of a register.
*/
static __inline void
clrb(struct pcic_slot *sp, int reg, unsigned char mask)
{
sp->putb(sp, reg, sp->getb(sp, reg) & ~mask);
}
/*
* Set bit(s) of a register
*/
static __inline void
setb(struct pcic_slot *sp, int reg, unsigned char mask)
{
sp->putb(sp, reg, sp->getb(sp, reg) | mask);
}
/*
* Write a 16 bit value to 2 adjacent PCIC registers
*/
static __inline void
putw(struct pcic_slot *sp, int reg, unsigned short word)
{
sp->putb(sp, reg, word & 0xFF);
sp->putb(sp, reg + 1, (word >> 8) & 0xff);
}
/*
* Loadable kernel module interface.
*/
#ifdef LKM
/*
* This defines the lkm_misc module use by modload
* to define the module name.
*/
MOD_MISC(pcic);
/*
* Module handler that processes loads and unloads.
* Once the module is loaded, the probe routine
* is called to install the slots (if any).
*/
static int
pcic_handle(struct lkm_table *lkmtp, int cmd)
{
int err = 0; /* default = success*/
switch(cmd) {
case LKM_E_LOAD:
/*
* Don't load twice! (lkmexists() is exported by kern_lkm.c)
*/
if (lkmexists(lkmtp))
return(EEXIST);
/*
* Call the probe routine to find the slots. If
* no slots exist, then don't bother loading the module.
*/
if (pcic_probe() == 0)
return(ENODEV);
break; /* Success*/
/*
* Attempt to unload the slot driver.
*/
case LKM_E_UNLOAD:
printf("Unloading PCIC driver\n");
err = pcic_unload(lkmtp, cmd);
break; /* Success*/
default: /* we only understand load/unload*/
err = EINVAL;
break;
}
return(err);
}
/*
* External entry point; should generally match name of .o file. The
* arguments are always the same for all loaded modules. The "load",
* "unload", and "stat" functions in "DISPATCH" will be called under
* their respective circumstances unless their value is "lkm_nullcmd".
* If called, they are called with the same arguments (cmd is included to
* allow the use of a single function, ver is included for version
* matching between modules and the kernel loader for the modules).
*
* Since we expect to link in the kernel and add external symbols to
* the kernel symbol name space in a future version, generally all
* functions used in the implementation of a particular module should
* be static unless they are expected to be seen in other modules or
* to resolve unresolved symbols alread existing in the kernel (the
* second case is not likely to ever occur).
*
* The entry point should return 0 unless it is refusing load (in which
* case it should return an errno from errno.h).
*/
int
pcic_mod(struct lkm_table *lkmtp, int cmd, int ver)
{
MOD_DISPATCH(pcic, lkmtp, cmd, ver,
pcic_handle, pcic_handle, lkm_nullcmd);
}
/*
* pcic_unload - Called when unloading a LKM.
* Disables interrupts and resets PCIC.
*/
static int
pcic_unload(struct lkm_table *lkmtp, int cmd)
{
int slot;
struct pcic_slot *sp = pcic_slots;
untimeout(pcictimeout, 0, pcictimeout_ch);
if (pcic_irq) {
for (slot = 0; slot < PCIC_MAX_SLOTS; slot++, sp++) {
if (sp->slt)
sp->putb(sp, PCIC_STAT_INT, 0);
}
unregister_intr(pcic_irq, pcicintr);
}
pccard_remove_controller(&cinfo);
return(0);
}
#endif /* LKM */
#if 0
static void
pcic_dump_attributes(unsigned char *scratch, int maxlen)
{
int i,j,k;
i = 0;
while (scratch[i] != 0xff && i < maxlen) {
unsigned char link = scratch[i+2];
/*
* Dump attribute memory
*/
if (scratch[i]) {
printf("[%02x] ", i);
for (j = 0; j < 2 * link + 4 && j < 128; j += 2)
printf("%02x ", scratch[j + i]);
printf("\n");
}
i += 4 + 2 * link;
}
}
#endif
static void
nullfunc(void *unused)
{
/* empty */
}
static u_int
build_freelist(u_int pcic_mask)
{
int irq;
u_int mask, freemask;
/* No free IRQs (yet). */
freemask = 0;
/* Walk through all of the IRQ's and find any that aren't allocated. */
for (irq = 1; irq < ICU_LEN; irq++) {
/*
* If the PCIC controller can't generate it, don't
* bother checking to see if it it's free.
*/
mask = 1 << irq;
if (!(mask & pcic_mask)) continue;
/* See if the IRQ is free. */
if (register_intr(irq, 0, 0, nullfunc, NULL, irq) == 0) {
/* Give it back, but add it to the mask */
INTRMASK(freemask, mask);
unregister_intr(irq, nullfunc);
}
}
#ifdef PCIC_DEBUG
printf("Freelist of IRQ's <0x%x>\n", freemask);
#endif
return freemask;
}
/*
* entry point from main code to map/unmap memory context.
*/
static int
pcic_memory(struct slot *slt, int win)
{
struct pcic_slot *sp = slt->cdata;
struct mem_desc *mp = &slt->mem[win];
int reg = mp->window * PCIC_MEMSIZE + PCIC_MEMBASE;
#ifdef PC98
if (sp->controller == PCIC_PC98) {
if (mp->flags & MDF_ACTIVE) {
/* slot = 0, window = 0, sys_addr = 0xda000, length = 8KB */
unsigned char x;
if ((unsigned long)mp->start != 0xda000) {
printf("sys_addr must be 0xda000. requested address = 0x%x\n",
mp->start);
return(EINVAL);
}
/* omajinai ??? */
outb(PCIC98_REG0, 0);
x = inb(PCIC98_REG1);
x &= 0xfc;
x |= 0x02;
outb(PCIC98_REG1, x);
outw(PCIC98_REG_PAGOFS, 0);
if (mp->flags & MDF_ATTR) {
outb(PCIC98_REG6, inb(PCIC98_REG6) | PCIC98_ATTRMEM);
}else{
outb(PCIC98_REG6, inb(PCIC98_REG6) & (~PCIC98_ATTRMEM));
}
outb(PCIC98_REG_WINSEL, PCIC98_MAPWIN);
#if 0
if (mp->flags & MDF_16BITS == 1) { /* 16bit */
outb(PCIC98_REG2, inb(PCIC98_REG2) & (~PCIC98_8BIT));
}else{ /* 8bit */
outb(PCIC98_REG2, inb(PCIC98_REG2) | PCIC98_8BIT);
}
#endif
}else{
outb(PCIC98_REG_WINSEL, PCIC98_UNMAPWIN);
}
return 0;
}
#endif /* PC98 */
if (mp->flags & MDF_ACTIVE) {
unsigned long sys_addr = (uintptr_t)(void *)mp->start >> 12;
/*
* Write the addresses, card offsets and length.
* The values are all stored as the upper 12 bits of the
* 24 bit address i.e everything is allocated as 4 Kb chunks.
*/
putw(sp, reg, sys_addr & 0xFFF);
putw(sp, reg+2, (sys_addr + (mp->size >> 12) - 1) & 0xFFF);
putw(sp, reg+4, ((mp->card >> 12) - sys_addr) & 0x3FFF);
#if 0
printf("card offs = card_adr = 0x%x 0x%x, sys_addr = 0x%x\n",
mp->card, ((mp->card >> 12) - sys_addr) & 0x3FFF,
sys_addr);
#endif
/*
* Each 16 bit register has some flags in the upper bits.
*/
if (mp->flags & MDF_16BITS)
setb(sp, reg+1, PCIC_DATA16);
if (mp->flags & MDF_ZEROWS)
setb(sp, reg+1, PCIC_ZEROWS);
if (mp->flags & MDF_WS0)
setb(sp, reg+3, PCIC_MW0);
if (mp->flags & MDF_WS1)
setb(sp, reg+3, PCIC_MW1);
if (mp->flags & MDF_ATTR)
setb(sp, reg+5, PCIC_REG);
if (mp->flags & MDF_WP)
setb(sp, reg+5, PCIC_WP);
#if 0
printf("Slot number %d, reg 0x%x, offs 0x%x\n",
sp->slotnum, reg, sp->offset);
printf("Map window to sys addr 0x%x for %d bytes, card 0x%x\n",
mp->start, mp->size, mp->card);
printf("regs are: 0x%02x%02x 0x%02x%02x 0x%02x%02x flags 0x%x\n",
sp->getb(sp, reg), sp->getb(sp, reg+1),
sp->getb(sp, reg+2), sp->getb(sp, reg+3),
sp->getb(sp, reg+4), sp->getb(sp, reg+5),
mp->flags);
#endif
/*
* Enable the memory window. By experiment, we need a delay.
*/
setb(sp, PCIC_ADDRWINE, (1<<win) | PCIC_MEMCS16);
DELAY(50);
} else {
#if 0
printf("Unmapping window %d\n", win);
#endif
clrb(sp, PCIC_ADDRWINE, 1<<win);
putw(sp, reg, 0);
putw(sp, reg+2, 0);
putw(sp, reg+4, 0);
}
return(0);
}
/*
* pcic_io - map or unmap I/O context
*/
static int
pcic_io(struct slot *slt, int win)
{
int mask, reg;
struct pcic_slot *sp = slt->cdata;
struct io_desc *ip = &slt->io[win];
#ifdef PC98
if (sp->controller == PCIC_PC98) {
unsigned char x;
#if 0
if (win =! 0) {
printf("pcic98:Illegal PCIC I/O window request(%d)!", win);
return(EINVAL);
}
#endif
if (ip->flags & IODF_ACTIVE) {
unsigned short base;
x = inb(PCIC98_REG2) & 0x0f;
if (! (ip->flags & IODF_16BIT))
x |= PCIC98_8BIT;
if (ip->size > 16) /* 128bytes mapping */
x |= PCIC98_MAP128;
x |= PCIC98_IOMEMORY;
outb(PCIC98_REG2, x);
base = 0x80d0;
outw(PCIC98_REG4, base); /* 98side IO base */
outw(PCIC98_REG5, ip->start); /* card side IO base */
#ifdef PCIC_DEBUG
printf("pcic98: IO mapped 0x%04x(98) -> 0x%04x(Card) and width %d bytes\n",
base, ip->start, ip->size);
#endif
ip->start = base;
}else{
outb(PCIC98_REG2, inb(PCIC98_REG2) & (~PCIC98_IOMEMORY));
}
return 0;
}
#endif
switch (win) {
case 0:
mask = PCIC_IO0_EN;
reg = PCIC_IO0;
break;
case 1:
mask = PCIC_IO1_EN;
reg = PCIC_IO1;
break;
default:
panic("Illegal PCIC I/O window request!");
}
if (ip->flags & IODF_ACTIVE) {
unsigned char x, ioctlv;
#ifdef PCIC_DEBUG
printf("Map I/O 0x%x (size 0x%x) on Window %d\n", ip->start, ip->size, win);
#endif /* PCIC_DEBUG */
putw(sp, reg, ip->start);
putw(sp, reg+2, ip->start+ip->size-1);
x = 0;
if (ip->flags & IODF_ZEROWS)
x |= PCIC_IO_0WS;
if (ip->flags & IODF_WS)
x |= PCIC_IO_WS;
if (ip->flags & IODF_CS16)
x |= PCIC_IO_CS16;
if (ip->flags & IODF_16BIT)
x |= PCIC_IO_16BIT;
/*
* Extract the current flags and merge with new flags.
* Flags for window 0 in lower nybble, and in upper nybble
* for window 1.
*/
ioctlv = sp->getb(sp, PCIC_IOCTL);
DELAY(100);
switch (win) {
case 0:
sp->putb(sp, PCIC_IOCTL, x | (ioctlv & 0xf0));
break;
case 1:
sp->putb(sp, PCIC_IOCTL, (x << 4) | (ioctlv & 0xf));
break;
}
DELAY(100);
setb(sp, PCIC_ADDRWINE, mask);
DELAY(100);
} else {
clrb(sp, PCIC_ADDRWINE, mask);
DELAY(100);
putw(sp, reg, 0);
putw(sp, reg + 2, 0);
}
return(0);
}
/*
* Look for an Intel PCIC (or compatible).
* For each available slot, allocate a PC-CARD slot.
*/
/*
* VLSI 82C146 has incompatibilities about the I/O address
* of slot 1. Assume it's the only PCIC whose vendor ID is 0x84,
* contact Nate Williams <nate@FreeBSD.org> if incorrect.
*/
int
pcic_probe(void)
{
int slotnum, i, validslots = 0;
u_int free_irqs;
struct slot *slt;
struct pcic_slot *sp;
unsigned char c;
static int maybe_vlsi = 0;
/* Determine the list of free interrupts */
free_irqs = build_freelist(PCIC_INT_MASK_ALLOWED);
/*
* Initialise controller information structure.
*/
cinfo.mapmem = pcic_memory;
cinfo.mapio = pcic_io;
cinfo.ioctl = pcic_ioctl;
cinfo.power = pcic_power;
cinfo.mapirq = pcic_mapirq;
cinfo.reset = pcic_reset;
cinfo.disable = pcic_disable;
cinfo.resume = pcic_resume;
cinfo.maxmem = PCIC_MEM_WIN;
cinfo.maxio = PCIC_IO_WIN;
cinfo.irqs = free_irqs;
cinfo.imask = &pcic_imask;
#ifdef LKM
bzero(pcic_slots, sizeof(pcic_slots));
#endif
sp = pcic_slots;
for (slotnum = 0; slotnum < PCIC_MAX_SLOTS; slotnum++, sp++) {
/*
* Initialise the PCIC slot table.
*/
sp->getb = getb1;
sp->putb = putb1;
if (slotnum < 4) {
sp->index = PCIC_INDEX_0;
sp->data = PCIC_DATA_0;
sp->offset = slotnum * PCIC_SLOT_SIZE;
} else {
sp->index = PCIC_INDEX_1;
sp->data = PCIC_DATA_1;
sp->offset = (slotnum - 4) * PCIC_SLOT_SIZE;
}
/*
* XXX - Screwed up slot 1 on the VLSI chips. According to
* the Linux PCMCIA code from David Hinds, working chipsets
* return 0x84 from their (correct) ID ports, while the broken
* ones would need to be probed at the new offset we set after
* we assume it's broken.
*/
if (slotnum == 1 && maybe_vlsi && sp->getb(sp, PCIC_ID_REV) != 0x84) {
sp->index += 4;
sp->data += 4;
sp->offset = PCIC_SLOT_SIZE << 1;
}
/*
* see if there's a PCMCIA controller here
* Intel PCMCIA controllers use 0x82 and 0x83
* IBM clone chips use 0x88 and 0x89, apparently
*/
c = sp->getb(sp, PCIC_ID_REV);
sp->revision = -1;
switch(c) {
/*
* 82365 or clones.
*/
case 0x82:
case 0x83:
sp->controller = PCIC_I82365;
sp->revision = c & 1;
/*
* Now check for VADEM chips.
*/
outb(sp->index, 0x0E);
outb(sp->index, 0x37);
setb(sp, 0x3A, 0x40);
c = sp->getb(sp, PCIC_ID_REV);
if (c & 0x08) {
switch (sp->revision = c & 7) {
case 1:
sp->controller = PCIC_VG365;
break;
case 2:
sp->controller = PCIC_VG465;
break;
case 3:
sp->controller = PCIC_VG468;
break;
default:
sp->controller = PCIC_VG469;
break;
}
clrb(sp, 0x3A, 0x40);
}
/*
* Check for RICOH RF5C396 PCMCIA Controller
*/
c = sp->getb(sp, 0x3a);
if (c == 0xb2) {
sp->controller = PCIC_RF5C396;
}
break;
/*
* VLSI chips.
*/
case 0x84:
sp->controller = PCIC_VLSI;
maybe_vlsi = 1;
break;
case 0x88:
case 0x89:
sp->controller = PCIC_IBM;
sp->revision = c & 1;
break;
case 0x8a:
sp->controller = PCIC_IBM_KING;
sp->revision = c & 1;
break;
default:
continue;
}
/*
* Check for Cirrus logic chips.
*/
sp->putb(sp, 0x1F, 0);
c = sp->getb(sp, 0x1F);
if ((c & 0xC0) == 0xC0) {
c = sp->getb(sp, 0x1F);
if ((c & 0xC0) == 0) {
if (c & 0x20)
sp->controller = PCIC_PD672X;
else
sp->controller = PCIC_PD6710;
sp->revision = 8 - ((c & 0x1F) >> 2);
}
}
switch(sp->controller) {
case PCIC_I82365:
cinfo.name = "Intel 82365";
break;
case PCIC_IBM:
cinfo.name = "IBM PCIC";
break;
case PCIC_IBM_KING:
cinfo.name = "IBM KING PCMCIA Controller";
break;
case PCIC_PD672X:
cinfo.name = "Cirrus Logic PD672X";
break;
case PCIC_PD6710:
cinfo.name = "Cirrus Logic PD6710";
break;
case PCIC_VG365:
cinfo.name = "Vadem 365";
break;
case PCIC_VG465:
cinfo.name = "Vadem 465";
break;
case PCIC_VG468:
cinfo.name = "Vadem 468";
break;
case PCIC_VG469:
cinfo.name = "Vadem 469";
break;
case PCIC_RF5C396:
cinfo.name = "Ricoh RF5C396";
break;
case PCIC_VLSI:
cinfo.name = "VLSI 82C146";
break;
default:
cinfo.name = "Unknown!";
break;
}
/*
* OK it seems we have a PCIC or lookalike.
* Allocate a slot and initialise the data structures.
*/
validslots++;
sp->slotnum = slotnum;
slt = pccard_alloc_slot(&cinfo);
if (slt == 0)
continue;
slt->cdata = sp;
sp->slt = slt;
/*
* If we haven't allocated an interrupt for the controller,
* then attempt to get one.
*/
if (pcic_irq == 0) {
pcic_imask = soft_imask;
pcic_irq = pccard_alloc_intr(free_irqs,
pcicintr, 0, &pcic_imask, NULL);
if (pcic_irq < 0)
printf("pcic: failed to allocate IRQ\n");
else
printf("pcic: controller irq %d\n", pcic_irq);
}
/*
* Modem cards send the speaker audio (dialing noises)
* to the host's speaker. Cirrus Logic PCIC chips must
* enable this. There is also a Low Power Dynamic Mode bit
* that claims to reduce power consumption by 30%, so
* enable it and hope for the best.
*/
if (sp->controller == PCIC_PD672X) {
setb(sp, PCIC_MISC1, PCIC_SPKR_EN);
setb(sp, PCIC_MISC2, PCIC_LPDM_EN);
}
/*
* Check for a card in this slot.
*/
setb(sp, PCIC_POWER, PCIC_PCPWRE| PCIC_DISRST);
if ((sp->getb(sp, PCIC_STATUS) & PCIC_CD) != PCIC_CD) {
slt->laststate = slt->state = empty;
} else {
slt->laststate = slt->state = filled;
pccard_event(sp->slt, card_inserted);
}
/*
* Assign IRQ for slot changes
*/
if (pcic_irq > 0)
sp->putb(sp, PCIC_STAT_INT, (pcic_irq << 4) | 0xF);
}
#ifdef PC98
if (validslots == 0) {
sp = pcic_slots;
slotnum = 0;
if (inb(PCIC98_REG0) != 0xff) {
sp->controller = PCIC_PC98;
sp->revision = 0;
cinfo.name = "PC98 Original";
cinfo.maxmem = 1;
cinfo.maxio = 1;
/* cinfo.irqs = PCIC_INT_MASK_ALLOWED;*/
cinfo.irqs = 0x1468;
validslots++;
sp->slotnum = slotnum;
slt = pccard_alloc_slot(&cinfo);
if (slt == 0) {
printf("pcic98: slt == NULL\n");
goto pcic98_probe_end;
}
slt->cdata = sp;
sp->slt = slt;
/* Check for a card in this slot */
if (inb(PCIC98_REG1) & PCIC98_CARDEXIST) {
/* PCMCIA card exist */
slt->laststate = slt->state = filled;
pccard_event(sp->slt, card_inserted);
} else {
slt->laststate = slt->state = empty;
}
}
pcic98_probe_end:
}
#endif /* PC98 */
if (validslots && pcic_irq <= 0)
pcictimeout_ch = timeout(pcictimeout, 0, hz/2);
return(validslots);
}
/*
* ioctl calls - Controller specific ioctls
*/
static int
pcic_ioctl(struct slot *slt, int cmd, caddr_t data)
{
struct pcic_slot *sp = slt->cdata;
switch(cmd) {
default:
return(EINVAL);
/*
* Get/set PCIC registers
*/
case PIOCGREG:
((struct pcic_reg *)data)->value =
sp->getb(sp, ((struct pcic_reg *)data)->reg);
break;
case PIOCSREG:
sp->putb(sp, ((struct pcic_reg *)data)->reg,
((struct pcic_reg *)data)->value);
break;
}
return(0);
}
/*
* pcic_power - Enable the power of the slot according to
* the parameters in the power structure(s).
*/
static int
pcic_power(struct slot *slt)
{
unsigned char reg = PCIC_DISRST|PCIC_PCPWRE;
struct pcic_slot *sp = slt->cdata;
switch(sp->controller) {
#ifdef PC98
case PCIC_PC98:
reg = inb(PCIC98_REG6) & (~PCIC98_VPP12V);
switch(slt->pwr.vpp) {
default:
return(EINVAL);
case 50:
break;
case 120:
reg |= PCIC98_VPP12V;
break;
}
outb(PCIC98_REG6, reg);
DELAY(100*1000);
reg = inb(PCIC98_REG2) & (~PCIC98_VCC3P3V);
switch(slt->pwr.vcc) {
default:
return(EINVAL);
case 33:
reg |= PCIC98_VCC3P3V;
break;
case 50:
break;
}
outb(PCIC98_REG2, reg);
DELAY(100*1000);
return (0);
#endif
case PCIC_PD672X:
case PCIC_PD6710:
case PCIC_VG365:
case PCIC_VG465:
case PCIC_VG468:
case PCIC_VG469:
case PCIC_RF5C396:
case PCIC_VLSI:
case PCIC_IBM_KING:
switch(slt->pwr.vpp) {
default:
return(EINVAL);
case 0:
break;
case 50:
case 33:
reg |= PCIC_VPP_5V;
break;
case 120:
reg |= PCIC_VPP_12V;
break;
}
switch(slt->pwr.vcc) {
default:
return(EINVAL);
case 0:
break;
case 33:
if (sp->controller == PCIC_IBM_KING) {
reg |= PCIC_VCC_5V_KING;
break;
}
reg |= PCIC_VCC_3V;
if ((sp->controller == PCIC_VG468) ||
(sp->controller == PCIC_VG469) ||
(sp->controller == PCIC_VG465) ||
(sp->controller == PCIC_VG365))
setb(sp, 0x2f, 0x03) ;
else
setb(sp, 0x16, 0x02);
break;
case 50:
if (sp->controller == PCIC_IBM_KING) {
reg |= PCIC_VCC_5V_KING;
break;
}
reg |= PCIC_VCC_5V;
if ((sp->controller == PCIC_VG468) ||
(sp->controller == PCIC_VG469) ||
(sp->controller == PCIC_VG465) ||
(sp->controller == PCIC_VG365))
clrb(sp, 0x2f, 0x03) ;
else
clrb(sp, 0x16, 0x02);
break;
}
break;
}
sp->putb(sp, PCIC_POWER, reg);
DELAY(300*1000);
if (slt->pwr.vcc) {
reg |= PCIC_OUTENA;
sp->putb(sp, PCIC_POWER, reg);
DELAY(100*1000);
}
/* Some chips are smarter than us it seems, so if we weren't
* allowed to use 5V, try 3.3 instead
*/
if (!(sp->getb(sp, PCIC_STATUS) & 0x40) && slt->pwr.vcc == 50) {
slt->pwr.vcc = 33;
slt->pwr.vpp = 0;
return (pcic_power(slt));
}
return(0);
}
/*
* tell the PCIC which irq we want to use. only the following are legal:
* 3, 4, 5, 7, 9, 10, 11, 12, 14, 15
*/
static void
pcic_mapirq(struct slot *slt, int irq)
{
struct pcic_slot *sp = slt->cdata;
#ifdef PC98
if (sp->controller == PCIC_PC98) {
unsigned char x;
switch (irq) {
case 3:
x = PCIC98_INT0; break;
case 5:
x = PCIC98_INT1; break;
case 6:
x = PCIC98_INT2; break;
case 10:
x = PCIC98_INT4; break;
case 12:
x = PCIC98_INT5; break;
case 0: /* disable */
x = PCIC98_INTDISABLE;
break;
default:
printf("pcic98: illegal irq %d\n", irq);
return;
}
#ifdef PCIC_DEBUG
printf("pcic98: irq=%d mapped.\n", irq);
#endif
outb(PCIC98_REG3, x);
return;
}
#endif
if (irq == 0)
clrb(sp, PCIC_INT_GEN, 0xF);
else
sp->putb(sp, PCIC_INT_GEN,
(sp->getb(sp, PCIC_INT_GEN) & 0xF0) | irq);
}
/*
* pcic_reset - Reset the card and enable initial power.
*/
static void
pcic_reset(void *chan)
{
struct slot *slt = chan;
struct pcic_slot *sp = slt->cdata;
#ifdef PC98
if (sp->controller == PCIC_PC98) {
outb(PCIC98_REG0, 0);
outb(PCIC98_REG2, inb(PCIC98_REG2) & (~PCIC98_IOMEMORY));
outb(PCIC98_REG3, PCIC98_INTDISABLE);
outb(PCIC98_REG2, inb(PCIC98_REG2) & (~PCIC98_VCC3P3V));
outb(PCIC98_REG6, inb(PCIC98_REG6) & (~PCIC98_VPP12V));
outb(PCIC98_REG1, 0);
selwakeup(&slt->selp);
return;
}
#endif
switch (slt->insert_seq) {
case 0: /* Something funny happended on the way to the pub... */
return;
case 1: /* Assert reset */
clrb(sp, PCIC_INT_GEN, PCIC_CARDRESET);
slt->insert_seq = 2;
timeout(pcic_reset, (void *)slt, hz/4);
return;
case 2: /* Deassert it again */
setb(sp, PCIC_INT_GEN, PCIC_CARDRESET|PCIC_IOCARD);
slt->insert_seq = 3;
timeout(pcic_reset, (void *)slt, hz/4);
return;
case 3: /* Wait if card needs more time */
if (!sp->getb(sp, PCIC_STATUS) & PCIC_READY) {
timeout(pcic_reset, (void *)slt, hz/10);
return;
}
}
slt->insert_seq = 0;
if (sp->controller == PCIC_PD672X || sp->controller == PCIC_PD6710) {
sp->putb(sp, PCIC_TIME_SETUP0, 0x1);
sp->putb(sp, PCIC_TIME_CMD0, 0x6);
sp->putb(sp, PCIC_TIME_RECOV0, 0x0);
sp->putb(sp, PCIC_TIME_SETUP1, 1);
sp->putb(sp, PCIC_TIME_CMD1, 0xf);
sp->putb(sp, PCIC_TIME_RECOV1, 0);
}
selwakeup(&slt->selp);
}
/*
* pcic_disable - Disable the slot.
*/
static void
pcic_disable(struct slot *slt)
{
struct pcic_slot *sp = slt->cdata;
#ifdef PC98
if (sp->controller == PCIC_PC98) {
return;
}
#endif
sp->putb(sp, PCIC_INT_GEN, 0);
sp->putb(sp, PCIC_POWER, 0);
}
/*
* PCIC timer. If the controller doesn't have a free IRQ to use
* or if interrupt steering doesn't work, poll the controller for
* insertion/removal events.
*/
static void
pcictimeout(void *chan)
{
pcicintr(NULL);
pcictimeout_ch = timeout(pcictimeout, 0, hz/2);
}
/*
* PCIC Interrupt handler.
* Check each slot in turn, and read the card status change
* register. If this is non-zero, then a change has occurred
* on this card, so send an event to the main code.
*/
static void
pcicintr(void *unused)
{
int slot, s;
unsigned char chg;
struct pcic_slot *sp = pcic_slots;
#ifdef PC98
if (sp->controller == PCIC_PC98) {
slot = 0;
s = splhigh();
/* Check for a card in this slot */
if (inb(PCIC98_REG1) & PCIC98_CARDEXIST) {
if (sp->slt->laststate != filled) {
pccard_event(sp->slt, card_inserted);
}
} else {
if (sp->slt->laststate != empty) {
pccard_event(sp->slt, card_removed);
}
}
splx(s);
return;
}
#endif /* PC98 */
s = splhigh();
for (slot = 0; slot < PCIC_MAX_SLOTS; slot++, sp++)
if (sp->slt && (chg = sp->getb(sp, PCIC_STAT_CHG)) != 0)
if (chg & PCIC_CDTCH) {
if ((sp->getb(sp, PCIC_STATUS) & PCIC_CD) ==
PCIC_CD) {
pccard_event(sp->slt, card_inserted);
} else {
pccard_event(sp->slt, card_removed);
}
}
splx(s);
}
/*
* pcic_resume - Suspend/resume support for PCIC
*/
static void
pcic_resume(struct slot *slt)
{
struct pcic_slot *sp = slt->cdata;
if (pcic_irq > 0)
sp->putb(sp, PCIC_STAT_INT, (pcic_irq << 4) | 0xF);
if (sp->controller == PCIC_PD672X) {
setb(sp, PCIC_MISC1, PCIC_SPKR_EN);
setb(sp, PCIC_MISC2, PCIC_LPDM_EN);
}
}
Reference in a new issue View git blame Copy permalink