mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1455 lines
39 KiB
1455 lines
39 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* Regular cardbus driver ("yenta_socket") |
|
* |
|
* (C) Copyright 1999, 2000 Linus Torvalds |
|
* |
|
* Changelog: |
|
* Aug 2002: Manfred Spraul <[email protected]> |
|
* Dynamically adjust the size of the bridge resource |
|
* |
|
* May 2003: Dominik Brodowski <[email protected]> |
|
* Merge pci_socket.c and yenta.c into one file |
|
*/ |
|
#include <linux/init.h> |
|
#include <linux/pci.h> |
|
#include <linux/workqueue.h> |
|
#include <linux/interrupt.h> |
|
#include <linux/delay.h> |
|
#include <linux/module.h> |
|
#include <linux/io.h> |
|
#include <linux/slab.h> |
|
|
|
#include <pcmcia/ss.h> |
|
|
|
#include "yenta_socket.h" |
|
#include "i82365.h" |
|
|
|
static bool disable_clkrun; |
|
module_param(disable_clkrun, bool, 0444); |
|
MODULE_PARM_DESC(disable_clkrun, |
|
"If PC card doesn't function properly, please try this option (TI and Ricoh bridges only)"); |
|
|
|
static bool isa_probe = 1; |
|
module_param(isa_probe, bool, 0444); |
|
MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing"); |
|
|
|
static bool pwr_irqs_off; |
|
module_param(pwr_irqs_off, bool, 0644); |
|
MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!"); |
|
|
|
static char o2_speedup[] = "default"; |
|
module_param_string(o2_speedup, o2_speedup, sizeof(o2_speedup), 0444); |
|
MODULE_PARM_DESC(o2_speedup, "Use prefetch/burst for O2-bridges: 'on', 'off' " |
|
"or 'default' (uses recommended behaviour for the detected bridge)"); |
|
|
|
/* |
|
* Only probe "regular" interrupts, don't |
|
* touch dangerous spots like the mouse irq, |
|
* because there are mice that apparently |
|
* get really confused if they get fondled |
|
* too intimately. |
|
* |
|
* Default to 11, 10, 9, 7, 6, 5, 4, 3. |
|
*/ |
|
static u32 isa_interrupts = 0x0ef8; |
|
|
|
|
|
#define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args) |
|
|
|
/* Don't ask.. */ |
|
#define to_cycles(ns) ((ns)/120) |
|
#define to_ns(cycles) ((cycles)*120) |
|
|
|
/* |
|
* yenta PCI irq probing. |
|
* currently only used in the TI/EnE initialization code |
|
*/ |
|
#ifdef CONFIG_YENTA_TI |
|
static int yenta_probe_cb_irq(struct yenta_socket *socket); |
|
static unsigned int yenta_probe_irq(struct yenta_socket *socket, |
|
u32 isa_irq_mask); |
|
#endif |
|
|
|
|
|
static unsigned int override_bios; |
|
module_param(override_bios, uint, 0000); |
|
MODULE_PARM_DESC(override_bios, "yenta ignore bios resource allocation"); |
|
|
|
/* |
|
* Generate easy-to-use ways of reading a cardbus sockets |
|
* regular memory space ("cb_xxx"), configuration space |
|
* ("config_xxx") and compatibility space ("exca_xxxx") |
|
*/ |
|
static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg) |
|
{ |
|
u32 val = readl(socket->base + reg); |
|
debug("%04x %08x\n", socket, reg, val); |
|
return val; |
|
} |
|
|
|
static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val) |
|
{ |
|
debug("%04x %08x\n", socket, reg, val); |
|
writel(val, socket->base + reg); |
|
readl(socket->base + reg); /* avoid problems with PCI write posting */ |
|
} |
|
|
|
static inline u8 config_readb(struct yenta_socket *socket, unsigned offset) |
|
{ |
|
u8 val; |
|
pci_read_config_byte(socket->dev, offset, &val); |
|
debug("%04x %02x\n", socket, offset, val); |
|
return val; |
|
} |
|
|
|
static inline u16 config_readw(struct yenta_socket *socket, unsigned offset) |
|
{ |
|
u16 val; |
|
pci_read_config_word(socket->dev, offset, &val); |
|
debug("%04x %04x\n", socket, offset, val); |
|
return val; |
|
} |
|
|
|
static inline u32 config_readl(struct yenta_socket *socket, unsigned offset) |
|
{ |
|
u32 val; |
|
pci_read_config_dword(socket->dev, offset, &val); |
|
debug("%04x %08x\n", socket, offset, val); |
|
return val; |
|
} |
|
|
|
static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val) |
|
{ |
|
debug("%04x %02x\n", socket, offset, val); |
|
pci_write_config_byte(socket->dev, offset, val); |
|
} |
|
|
|
static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val) |
|
{ |
|
debug("%04x %04x\n", socket, offset, val); |
|
pci_write_config_word(socket->dev, offset, val); |
|
} |
|
|
|
static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val) |
|
{ |
|
debug("%04x %08x\n", socket, offset, val); |
|
pci_write_config_dword(socket->dev, offset, val); |
|
} |
|
|
|
static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg) |
|
{ |
|
u8 val = readb(socket->base + 0x800 + reg); |
|
debug("%04x %02x\n", socket, reg, val); |
|
return val; |
|
} |
|
|
|
/* |
|
static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg) |
|
{ |
|
u16 val; |
|
val = readb(socket->base + 0x800 + reg); |
|
val |= readb(socket->base + 0x800 + reg + 1) << 8; |
|
debug("%04x %04x\n", socket, reg, val); |
|
return val; |
|
} |
|
*/ |
|
|
|
static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val) |
|
{ |
|
debug("%04x %02x\n", socket, reg, val); |
|
writeb(val, socket->base + 0x800 + reg); |
|
readb(socket->base + 0x800 + reg); /* PCI write posting... */ |
|
} |
|
|
|
static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val) |
|
{ |
|
debug("%04x %04x\n", socket, reg, val); |
|
writeb(val, socket->base + 0x800 + reg); |
|
writeb(val >> 8, socket->base + 0x800 + reg + 1); |
|
|
|
/* PCI write posting... */ |
|
readb(socket->base + 0x800 + reg); |
|
readb(socket->base + 0x800 + reg + 1); |
|
} |
|
|
|
static ssize_t show_yenta_registers(struct device *yentadev, struct device_attribute *attr, char *buf) |
|
{ |
|
struct yenta_socket *socket = dev_get_drvdata(yentadev); |
|
int offset = 0, i; |
|
|
|
offset = sysfs_emit(buf, "CB registers:"); |
|
for (i = 0; i < 0x24; i += 4) { |
|
unsigned val; |
|
if (!(i & 15)) |
|
offset += sysfs_emit_at(buf, offset, "\n%02x:", i); |
|
val = cb_readl(socket, i); |
|
offset += sysfs_emit_at(buf, offset, " %08x", val); |
|
} |
|
|
|
offset += sysfs_emit_at(buf, offset, "\n\nExCA registers:"); |
|
for (i = 0; i < 0x45; i++) { |
|
unsigned char val; |
|
if (!(i & 7)) { |
|
if (i & 8) { |
|
memcpy(buf + offset, " -", 2); |
|
offset += 2; |
|
} else |
|
offset += sysfs_emit_at(buf, offset, "\n%02x:", i); |
|
} |
|
val = exca_readb(socket, i); |
|
offset += sysfs_emit_at(buf, offset, " %02x", val); |
|
} |
|
sysfs_emit_at(buf, offset, "\n"); |
|
return offset; |
|
} |
|
|
|
static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL); |
|
|
|
/* |
|
* Ugh, mixed-mode cardbus and 16-bit pccard state: things depend |
|
* on what kind of card is inserted.. |
|
*/ |
|
static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value) |
|
{ |
|
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
|
unsigned int val; |
|
u32 state = cb_readl(socket, CB_SOCKET_STATE); |
|
|
|
val = (state & CB_3VCARD) ? SS_3VCARD : 0; |
|
val |= (state & CB_XVCARD) ? SS_XVCARD : 0; |
|
val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING; |
|
val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0; |
|
|
|
|
|
if (state & CB_CBCARD) { |
|
val |= SS_CARDBUS; |
|
val |= (state & CB_CARDSTS) ? SS_STSCHG : 0; |
|
val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT; |
|
val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0; |
|
} else if (state & CB_16BITCARD) { |
|
u8 status = exca_readb(socket, I365_STATUS); |
|
val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0; |
|
if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { |
|
val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG; |
|
} else { |
|
val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD; |
|
val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN; |
|
} |
|
val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0; |
|
val |= (status & I365_CS_READY) ? SS_READY : 0; |
|
val |= (status & I365_CS_POWERON) ? SS_POWERON : 0; |
|
} |
|
|
|
*value = val; |
|
return 0; |
|
} |
|
|
|
static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state) |
|
{ |
|
/* some birdges require to use the ExCA registers to power 16bit cards */ |
|
if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) && |
|
(socket->flags & YENTA_16BIT_POWER_EXCA)) { |
|
u8 reg, old; |
|
reg = old = exca_readb(socket, I365_POWER); |
|
reg &= ~(I365_VCC_MASK | I365_VPP1_MASK | I365_VPP2_MASK); |
|
|
|
/* i82365SL-DF style */ |
|
if (socket->flags & YENTA_16BIT_POWER_DF) { |
|
switch (state->Vcc) { |
|
case 33: |
|
reg |= I365_VCC_3V; |
|
break; |
|
case 50: |
|
reg |= I365_VCC_5V; |
|
break; |
|
default: |
|
reg = 0; |
|
break; |
|
} |
|
switch (state->Vpp) { |
|
case 33: |
|
case 50: |
|
reg |= I365_VPP1_5V; |
|
break; |
|
case 120: |
|
reg |= I365_VPP1_12V; |
|
break; |
|
} |
|
} else { |
|
/* i82365SL-B style */ |
|
switch (state->Vcc) { |
|
case 50: |
|
reg |= I365_VCC_5V; |
|
break; |
|
default: |
|
reg = 0; |
|
break; |
|
} |
|
switch (state->Vpp) { |
|
case 50: |
|
reg |= I365_VPP1_5V | I365_VPP2_5V; |
|
break; |
|
case 120: |
|
reg |= I365_VPP1_12V | I365_VPP2_12V; |
|
break; |
|
} |
|
} |
|
|
|
if (reg != old) |
|
exca_writeb(socket, I365_POWER, reg); |
|
} else { |
|
u32 reg = 0; /* CB_SC_STPCLK? */ |
|
switch (state->Vcc) { |
|
case 33: |
|
reg = CB_SC_VCC_3V; |
|
break; |
|
case 50: |
|
reg = CB_SC_VCC_5V; |
|
break; |
|
default: |
|
reg = 0; |
|
break; |
|
} |
|
switch (state->Vpp) { |
|
case 33: |
|
reg |= CB_SC_VPP_3V; |
|
break; |
|
case 50: |
|
reg |= CB_SC_VPP_5V; |
|
break; |
|
case 120: |
|
reg |= CB_SC_VPP_12V; |
|
break; |
|
} |
|
if (reg != cb_readl(socket, CB_SOCKET_CONTROL)) |
|
cb_writel(socket, CB_SOCKET_CONTROL, reg); |
|
} |
|
} |
|
|
|
static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state) |
|
{ |
|
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
|
u16 bridge; |
|
|
|
/* if powering down: do it immediately */ |
|
if (state->Vcc == 0) |
|
yenta_set_power(socket, state); |
|
|
|
socket->io_irq = state->io_irq; |
|
bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR); |
|
if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) { |
|
u8 intr; |
|
bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0; |
|
|
|
/* ISA interrupt control? */ |
|
intr = exca_readb(socket, I365_INTCTL); |
|
intr = (intr & ~0xf); |
|
if (!socket->dev->irq) { |
|
intr |= socket->cb_irq ? socket->cb_irq : state->io_irq; |
|
bridge |= CB_BRIDGE_INTR; |
|
} |
|
exca_writeb(socket, I365_INTCTL, intr); |
|
} else { |
|
u8 reg; |
|
|
|
reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA); |
|
reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET; |
|
reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0; |
|
if (state->io_irq != socket->dev->irq) { |
|
reg |= state->io_irq; |
|
bridge |= CB_BRIDGE_INTR; |
|
} |
|
exca_writeb(socket, I365_INTCTL, reg); |
|
|
|
reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK); |
|
reg |= I365_PWR_NORESET; |
|
if (state->flags & SS_PWR_AUTO) |
|
reg |= I365_PWR_AUTO; |
|
if (state->flags & SS_OUTPUT_ENA) |
|
reg |= I365_PWR_OUT; |
|
if (exca_readb(socket, I365_POWER) != reg) |
|
exca_writeb(socket, I365_POWER, reg); |
|
|
|
/* CSC interrupt: no ISA irq for CSC */ |
|
reg = exca_readb(socket, I365_CSCINT); |
|
reg &= I365_CSC_IRQ_MASK; |
|
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; |
|
} |
|
exca_writeb(socket, I365_CSCINT, reg); |
|
exca_readb(socket, I365_CSC); |
|
if (sock->zoom_video) |
|
sock->zoom_video(sock, state->flags & SS_ZVCARD); |
|
} |
|
config_writew(socket, CB_BRIDGE_CONTROL, bridge); |
|
/* Socket event mask: get card insert/remove events.. */ |
|
cb_writel(socket, CB_SOCKET_EVENT, -1); |
|
cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); |
|
|
|
/* if powering up: do it as the last step when the socket is configured */ |
|
if (state->Vcc != 0) |
|
yenta_set_power(socket, state); |
|
return 0; |
|
} |
|
|
|
static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io) |
|
{ |
|
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
|
int map; |
|
unsigned char ioctl, addr, enable; |
|
|
|
map = io->map; |
|
|
|
if (map > 1) |
|
return -EINVAL; |
|
|
|
enable = I365_ENA_IO(map); |
|
addr = exca_readb(socket, I365_ADDRWIN); |
|
|
|
/* Disable the window before changing it.. */ |
|
if (addr & enable) { |
|
addr &= ~enable; |
|
exca_writeb(socket, I365_ADDRWIN, addr); |
|
} |
|
|
|
exca_writew(socket, I365_IO(map)+I365_W_START, io->start); |
|
exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop); |
|
|
|
ioctl = exca_readb(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); |
|
exca_writeb(socket, I365_IOCTL, ioctl); |
|
|
|
if (io->flags & MAP_ACTIVE) |
|
exca_writeb(socket, I365_ADDRWIN, addr | enable); |
|
return 0; |
|
} |
|
|
|
static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem) |
|
{ |
|
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
|
struct pci_bus_region region; |
|
int map; |
|
unsigned char addr, enable; |
|
unsigned int start, stop, card_start; |
|
unsigned short word; |
|
|
|
pcibios_resource_to_bus(socket->dev->bus, ®ion, mem->res); |
|
|
|
map = mem->map; |
|
start = region.start; |
|
stop = region.end; |
|
card_start = mem->card_start; |
|
|
|
if (map > 4 || start > stop || ((start ^ stop) >> 24) || |
|
(card_start >> 26) || mem->speed > 1000) |
|
return -EINVAL; |
|
|
|
enable = I365_ENA_MEM(map); |
|
addr = exca_readb(socket, I365_ADDRWIN); |
|
if (addr & enable) { |
|
addr &= ~enable; |
|
exca_writeb(socket, I365_ADDRWIN, addr); |
|
} |
|
|
|
exca_writeb(socket, CB_MEM_PAGE(map), start >> 24); |
|
|
|
word = (start >> 12) & 0x0fff; |
|
if (mem->flags & MAP_16BIT) |
|
word |= I365_MEM_16BIT; |
|
if (mem->flags & MAP_0WS) |
|
word |= I365_MEM_0WS; |
|
exca_writew(socket, I365_MEM(map) + I365_W_START, word); |
|
|
|
word = (stop >> 12) & 0x0fff; |
|
switch (to_cycles(mem->speed)) { |
|
case 0: |
|
break; |
|
case 1: |
|
word |= I365_MEM_WS0; |
|
break; |
|
case 2: |
|
word |= I365_MEM_WS1; |
|
break; |
|
default: |
|
word |= I365_MEM_WS1 | I365_MEM_WS0; |
|
break; |
|
} |
|
exca_writew(socket, I365_MEM(map) + I365_W_STOP, word); |
|
|
|
word = ((card_start - start) >> 12) & 0x3fff; |
|
if (mem->flags & MAP_WRPROT) |
|
word |= I365_MEM_WRPROT; |
|
if (mem->flags & MAP_ATTRIB) |
|
word |= I365_MEM_REG; |
|
exca_writew(socket, I365_MEM(map) + I365_W_OFF, word); |
|
|
|
if (mem->flags & MAP_ACTIVE) |
|
exca_writeb(socket, I365_ADDRWIN, addr | enable); |
|
return 0; |
|
} |
|
|
|
|
|
|
|
static irqreturn_t yenta_interrupt(int irq, void *dev_id) |
|
{ |
|
unsigned int events; |
|
struct yenta_socket *socket = (struct yenta_socket *) dev_id; |
|
u8 csc; |
|
u32 cb_event; |
|
|
|
/* Clear interrupt status for the event */ |
|
cb_event = cb_readl(socket, CB_SOCKET_EVENT); |
|
cb_writel(socket, CB_SOCKET_EVENT, cb_event); |
|
|
|
csc = exca_readb(socket, I365_CSC); |
|
|
|
if (!(cb_event || csc)) |
|
return IRQ_NONE; |
|
|
|
events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ; |
|
events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0; |
|
if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { |
|
events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0; |
|
} else { |
|
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->socket, events); |
|
|
|
return IRQ_HANDLED; |
|
} |
|
|
|
static void yenta_interrupt_wrapper(struct timer_list *t) |
|
{ |
|
struct yenta_socket *socket = from_timer(socket, t, poll_timer); |
|
|
|
yenta_interrupt(0, (void *)socket); |
|
socket->poll_timer.expires = jiffies + HZ; |
|
add_timer(&socket->poll_timer); |
|
} |
|
|
|
static void yenta_clear_maps(struct yenta_socket *socket) |
|
{ |
|
int i; |
|
struct resource res = { .start = 0, .end = 0x0fff }; |
|
pccard_io_map io = { 0, 0, 0, 0, 1 }; |
|
pccard_mem_map mem = { .res = &res, }; |
|
|
|
yenta_set_socket(&socket->socket, &dead_socket); |
|
for (i = 0; i < 2; i++) { |
|
io.map = i; |
|
yenta_set_io_map(&socket->socket, &io); |
|
} |
|
for (i = 0; i < 5; i++) { |
|
mem.map = i; |
|
yenta_set_mem_map(&socket->socket, &mem); |
|
} |
|
} |
|
|
|
/* redoes voltage interrogation if required */ |
|
static void yenta_interrogate(struct yenta_socket *socket) |
|
{ |
|
u32 state; |
|
|
|
state = cb_readl(socket, CB_SOCKET_STATE); |
|
if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) || |
|
(state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) || |
|
((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD))) |
|
cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST); |
|
} |
|
|
|
/* Called at resume and initialization events */ |
|
static int yenta_sock_init(struct pcmcia_socket *sock) |
|
{ |
|
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
|
|
|
exca_writeb(socket, I365_GBLCTL, 0x00); |
|
exca_writeb(socket, I365_GENCTL, 0x00); |
|
|
|
/* Redo card voltage interrogation */ |
|
yenta_interrogate(socket); |
|
|
|
yenta_clear_maps(socket); |
|
|
|
if (socket->type && socket->type->sock_init) |
|
socket->type->sock_init(socket); |
|
|
|
/* Re-enable CSC interrupts */ |
|
cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); |
|
|
|
return 0; |
|
} |
|
|
|
static int yenta_sock_suspend(struct pcmcia_socket *sock) |
|
{ |
|
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
|
|
|
/* Disable CSC interrupts */ |
|
cb_writel(socket, CB_SOCKET_MASK, 0x0); |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* Use an adaptive allocation for the memory resource, |
|
* sometimes the memory behind pci bridges is limited: |
|
* 1/8 of the size of the io window of the parent. |
|
* max 4 MB, min 16 kB. We try very hard to not get below |
|
* the "ACC" values, though. |
|
*/ |
|
#define BRIDGE_MEM_MAX (4*1024*1024) |
|
#define BRIDGE_MEM_ACC (128*1024) |
|
#define BRIDGE_MEM_MIN (16*1024) |
|
|
|
#define BRIDGE_IO_MAX 512 |
|
#define BRIDGE_IO_ACC 256 |
|
#define BRIDGE_IO_MIN 32 |
|
|
|
#ifndef PCIBIOS_MIN_CARDBUS_IO |
|
#define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO |
|
#endif |
|
|
|
static int yenta_search_one_res(struct resource *root, struct resource *res, |
|
u32 min) |
|
{ |
|
u32 align, size, start, end; |
|
|
|
if (res->flags & IORESOURCE_IO) { |
|
align = 1024; |
|
size = BRIDGE_IO_MAX; |
|
start = PCIBIOS_MIN_CARDBUS_IO; |
|
end = ~0U; |
|
} else { |
|
unsigned long avail = root->end - root->start; |
|
int i; |
|
size = BRIDGE_MEM_MAX; |
|
if (size > avail/8) { |
|
size = (avail+1)/8; |
|
/* round size down to next power of 2 */ |
|
i = 0; |
|
while ((size /= 2) != 0) |
|
i++; |
|
size = 1 << i; |
|
} |
|
if (size < min) |
|
size = min; |
|
align = size; |
|
start = PCIBIOS_MIN_MEM; |
|
end = ~0U; |
|
} |
|
|
|
do { |
|
if (allocate_resource(root, res, size, start, end, align, |
|
NULL, NULL) == 0) { |
|
return 1; |
|
} |
|
size = size/2; |
|
align = size; |
|
} while (size >= min); |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static int yenta_search_res(struct yenta_socket *socket, struct resource *res, |
|
u32 min) |
|
{ |
|
struct resource *root; |
|
int i; |
|
|
|
pci_bus_for_each_resource(socket->dev->bus, root, i) { |
|
if (!root) |
|
continue; |
|
|
|
if ((res->flags ^ root->flags) & |
|
(IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH)) |
|
continue; /* Wrong type */ |
|
|
|
if (yenta_search_one_res(root, res, min)) |
|
return 1; |
|
} |
|
return 0; |
|
} |
|
|
|
static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end) |
|
{ |
|
struct pci_dev *dev = socket->dev; |
|
struct resource *res; |
|
struct pci_bus_region region; |
|
unsigned mask; |
|
|
|
res = &dev->resource[nr]; |
|
/* Already allocated? */ |
|
if (res->parent) |
|
return 0; |
|
|
|
/* The granularity of the memory limit is 4kB, on IO it's 4 bytes */ |
|
mask = ~0xfff; |
|
if (type & IORESOURCE_IO) |
|
mask = ~3; |
|
|
|
res->name = dev->subordinate->name; |
|
res->flags = type; |
|
|
|
region.start = config_readl(socket, addr_start) & mask; |
|
region.end = config_readl(socket, addr_end) | ~mask; |
|
if (region.start && region.end > region.start && !override_bios) { |
|
pcibios_bus_to_resource(dev->bus, res, ®ion); |
|
if (pci_claim_resource(dev, nr) == 0) |
|
return 0; |
|
dev_info(&dev->dev, |
|
"Preassigned resource %d busy or not available, reconfiguring...\n", |
|
nr); |
|
} |
|
|
|
if (type & IORESOURCE_IO) { |
|
if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) || |
|
(yenta_search_res(socket, res, BRIDGE_IO_ACC)) || |
|
(yenta_search_res(socket, res, BRIDGE_IO_MIN))) |
|
return 1; |
|
} else { |
|
if (type & IORESOURCE_PREFETCH) { |
|
if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || |
|
(yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || |
|
(yenta_search_res(socket, res, BRIDGE_MEM_MIN))) |
|
return 1; |
|
/* Approximating prefetchable by non-prefetchable */ |
|
res->flags = IORESOURCE_MEM; |
|
} |
|
if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || |
|
(yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || |
|
(yenta_search_res(socket, res, BRIDGE_MEM_MIN))) |
|
return 1; |
|
} |
|
|
|
dev_info(&dev->dev, |
|
"no resource of type %x available, trying to continue...\n", |
|
type); |
|
res->start = res->end = res->flags = 0; |
|
return 0; |
|
} |
|
|
|
static void yenta_free_res(struct yenta_socket *socket, int nr) |
|
{ |
|
struct pci_dev *dev = socket->dev; |
|
struct resource *res; |
|
|
|
res = &dev->resource[nr]; |
|
if (res->start != 0 && res->end != 0) |
|
release_resource(res); |
|
|
|
res->start = res->end = res->flags = 0; |
|
} |
|
|
|
/* |
|
* Allocate the bridge mappings for the device.. |
|
*/ |
|
static void yenta_allocate_resources(struct yenta_socket *socket) |
|
{ |
|
int program = 0; |
|
program += yenta_allocate_res(socket, PCI_CB_BRIDGE_IO_0_WINDOW, |
|
IORESOURCE_IO, |
|
PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0); |
|
program += yenta_allocate_res(socket, PCI_CB_BRIDGE_IO_1_WINDOW, |
|
IORESOURCE_IO, |
|
PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1); |
|
program += yenta_allocate_res(socket, PCI_CB_BRIDGE_MEM_0_WINDOW, |
|
IORESOURCE_MEM | IORESOURCE_PREFETCH, |
|
PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0); |
|
program += yenta_allocate_res(socket, PCI_CB_BRIDGE_MEM_1_WINDOW, |
|
IORESOURCE_MEM, |
|
PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1); |
|
if (program) |
|
pci_setup_cardbus(socket->dev->subordinate); |
|
} |
|
|
|
|
|
/* |
|
* Free the bridge mappings for the device.. |
|
*/ |
|
static void yenta_free_resources(struct yenta_socket *socket) |
|
{ |
|
yenta_free_res(socket, PCI_CB_BRIDGE_IO_0_WINDOW); |
|
yenta_free_res(socket, PCI_CB_BRIDGE_IO_1_WINDOW); |
|
yenta_free_res(socket, PCI_CB_BRIDGE_MEM_0_WINDOW); |
|
yenta_free_res(socket, PCI_CB_BRIDGE_MEM_1_WINDOW); |
|
} |
|
|
|
|
|
/* |
|
* Close it down - release our resources and go home.. |
|
*/ |
|
static void yenta_close(struct pci_dev *dev) |
|
{ |
|
struct yenta_socket *sock = pci_get_drvdata(dev); |
|
|
|
/* Remove the register attributes */ |
|
device_remove_file(&dev->dev, &dev_attr_yenta_registers); |
|
|
|
/* we don't want a dying socket registered */ |
|
pcmcia_unregister_socket(&sock->socket); |
|
|
|
/* Disable all events so we don't die in an IRQ storm */ |
|
cb_writel(sock, CB_SOCKET_MASK, 0x0); |
|
exca_writeb(sock, I365_CSCINT, 0); |
|
|
|
if (sock->cb_irq) |
|
free_irq(sock->cb_irq, sock); |
|
else |
|
del_timer_sync(&sock->poll_timer); |
|
|
|
iounmap(sock->base); |
|
yenta_free_resources(sock); |
|
|
|
pci_release_regions(dev); |
|
pci_disable_device(dev); |
|
pci_set_drvdata(dev, NULL); |
|
kfree(sock); |
|
} |
|
|
|
|
|
static struct pccard_operations yenta_socket_operations = { |
|
.init = yenta_sock_init, |
|
.suspend = yenta_sock_suspend, |
|
.get_status = yenta_get_status, |
|
.set_socket = yenta_set_socket, |
|
.set_io_map = yenta_set_io_map, |
|
.set_mem_map = yenta_set_mem_map, |
|
}; |
|
|
|
|
|
#ifdef CONFIG_YENTA_TI |
|
#include "ti113x.h" |
|
#endif |
|
#ifdef CONFIG_YENTA_RICOH |
|
#include "ricoh.h" |
|
#endif |
|
#ifdef CONFIG_YENTA_TOSHIBA |
|
#include "topic.h" |
|
#endif |
|
#ifdef CONFIG_YENTA_O2 |
|
#include "o2micro.h" |
|
#endif |
|
|
|
enum { |
|
CARDBUS_TYPE_DEFAULT = -1, |
|
CARDBUS_TYPE_TI, |
|
CARDBUS_TYPE_TI113X, |
|
CARDBUS_TYPE_TI12XX, |
|
CARDBUS_TYPE_TI1250, |
|
CARDBUS_TYPE_RICOH, |
|
CARDBUS_TYPE_TOPIC95, |
|
CARDBUS_TYPE_TOPIC97, |
|
CARDBUS_TYPE_O2MICRO, |
|
CARDBUS_TYPE_ENE, |
|
}; |
|
|
|
/* |
|
* Different cardbus controllers have slightly different |
|
* initialization sequences etc details. List them here.. |
|
*/ |
|
static struct cardbus_type cardbus_type[] = { |
|
#ifdef CONFIG_YENTA_TI |
|
[CARDBUS_TYPE_TI] = { |
|
.override = ti_override, |
|
.save_state = ti_save_state, |
|
.restore_state = ti_restore_state, |
|
.sock_init = ti_init, |
|
}, |
|
[CARDBUS_TYPE_TI113X] = { |
|
.override = ti113x_override, |
|
.save_state = ti_save_state, |
|
.restore_state = ti_restore_state, |
|
.sock_init = ti_init, |
|
}, |
|
[CARDBUS_TYPE_TI12XX] = { |
|
.override = ti12xx_override, |
|
.save_state = ti_save_state, |
|
.restore_state = ti_restore_state, |
|
.sock_init = ti_init, |
|
}, |
|
[CARDBUS_TYPE_TI1250] = { |
|
.override = ti1250_override, |
|
.save_state = ti_save_state, |
|
.restore_state = ti_restore_state, |
|
.sock_init = ti_init, |
|
}, |
|
[CARDBUS_TYPE_ENE] = { |
|
.override = ene_override, |
|
.save_state = ti_save_state, |
|
.restore_state = ti_restore_state, |
|
.sock_init = ti_init, |
|
}, |
|
#endif |
|
#ifdef CONFIG_YENTA_RICOH |
|
[CARDBUS_TYPE_RICOH] = { |
|
.override = ricoh_override, |
|
.save_state = ricoh_save_state, |
|
.restore_state = ricoh_restore_state, |
|
}, |
|
#endif |
|
#ifdef CONFIG_YENTA_TOSHIBA |
|
[CARDBUS_TYPE_TOPIC95] = { |
|
.override = topic95_override, |
|
}, |
|
[CARDBUS_TYPE_TOPIC97] = { |
|
.override = topic97_override, |
|
}, |
|
#endif |
|
#ifdef CONFIG_YENTA_O2 |
|
[CARDBUS_TYPE_O2MICRO] = { |
|
.override = o2micro_override, |
|
.restore_state = o2micro_restore_state, |
|
}, |
|
#endif |
|
}; |
|
|
|
|
|
static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask) |
|
{ |
|
int i; |
|
unsigned long val; |
|
u32 mask; |
|
u8 reg; |
|
|
|
/* |
|
* Probe for usable interrupts using the force |
|
* register to generate bogus card status events. |
|
*/ |
|
cb_writel(socket, CB_SOCKET_EVENT, -1); |
|
cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); |
|
reg = exca_readb(socket, I365_CSCINT); |
|
exca_writeb(socket, I365_CSCINT, 0); |
|
val = probe_irq_on() & isa_irq_mask; |
|
for (i = 1; i < 16; i++) { |
|
if (!((val >> i) & 1)) |
|
continue; |
|
exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4)); |
|
cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); |
|
udelay(100); |
|
cb_writel(socket, CB_SOCKET_EVENT, -1); |
|
} |
|
cb_writel(socket, CB_SOCKET_MASK, 0); |
|
exca_writeb(socket, I365_CSCINT, reg); |
|
|
|
mask = probe_irq_mask(val) & 0xffff; |
|
|
|
return mask; |
|
} |
|
|
|
|
|
/* |
|
* yenta PCI irq probing. |
|
* currently only used in the TI/EnE initialization code |
|
*/ |
|
#ifdef CONFIG_YENTA_TI |
|
|
|
/* interrupt handler, only used during probing */ |
|
static irqreturn_t yenta_probe_handler(int irq, void *dev_id) |
|
{ |
|
struct yenta_socket *socket = (struct yenta_socket *) dev_id; |
|
u8 csc; |
|
u32 cb_event; |
|
|
|
/* Clear interrupt status for the event */ |
|
cb_event = cb_readl(socket, CB_SOCKET_EVENT); |
|
cb_writel(socket, CB_SOCKET_EVENT, -1); |
|
csc = exca_readb(socket, I365_CSC); |
|
|
|
if (cb_event || csc) { |
|
socket->probe_status = 1; |
|
return IRQ_HANDLED; |
|
} |
|
|
|
return IRQ_NONE; |
|
} |
|
|
|
/* probes the PCI interrupt, use only on override functions */ |
|
static int yenta_probe_cb_irq(struct yenta_socket *socket) |
|
{ |
|
u8 reg = 0; |
|
|
|
if (!socket->cb_irq) |
|
return -1; |
|
|
|
socket->probe_status = 0; |
|
|
|
if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) { |
|
dev_warn(&socket->dev->dev, |
|
"request_irq() in yenta_probe_cb_irq() failed!\n"); |
|
return -1; |
|
} |
|
|
|
/* generate interrupt, wait */ |
|
if (!socket->dev->irq) |
|
reg = exca_readb(socket, I365_CSCINT); |
|
exca_writeb(socket, I365_CSCINT, reg | I365_CSC_STSCHG); |
|
cb_writel(socket, CB_SOCKET_EVENT, -1); |
|
cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); |
|
cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); |
|
|
|
msleep(100); |
|
|
|
/* disable interrupts */ |
|
cb_writel(socket, CB_SOCKET_MASK, 0); |
|
exca_writeb(socket, I365_CSCINT, reg); |
|
cb_writel(socket, CB_SOCKET_EVENT, -1); |
|
exca_readb(socket, I365_CSC); |
|
|
|
free_irq(socket->cb_irq, socket); |
|
|
|
return (int) socket->probe_status; |
|
} |
|
|
|
#endif /* CONFIG_YENTA_TI */ |
|
|
|
|
|
/* |
|
* Set static data that doesn't need re-initializing.. |
|
*/ |
|
static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask) |
|
{ |
|
socket->socket.pci_irq = socket->cb_irq; |
|
if (isa_probe) |
|
socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask); |
|
else |
|
socket->socket.irq_mask = 0; |
|
|
|
dev_info(&socket->dev->dev, "ISA IRQ mask 0x%04x, PCI irq %d\n", |
|
socket->socket.irq_mask, socket->cb_irq); |
|
} |
|
|
|
/* |
|
* Initialize the standard cardbus registers |
|
*/ |
|
static void yenta_config_init(struct yenta_socket *socket) |
|
{ |
|
u16 bridge; |
|
struct pci_dev *dev = socket->dev; |
|
struct pci_bus_region region; |
|
|
|
pcibios_resource_to_bus(socket->dev->bus, ®ion, &dev->resource[0]); |
|
|
|
config_writel(socket, CB_LEGACY_MODE_BASE, 0); |
|
config_writel(socket, PCI_BASE_ADDRESS_0, region.start); |
|
config_writew(socket, PCI_COMMAND, |
|
PCI_COMMAND_IO | |
|
PCI_COMMAND_MEMORY | |
|
PCI_COMMAND_MASTER | |
|
PCI_COMMAND_WAIT); |
|
|
|
/* MAGIC NUMBERS! Fixme */ |
|
config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4); |
|
config_writeb(socket, PCI_LATENCY_TIMER, 168); |
|
config_writel(socket, PCI_PRIMARY_BUS, |
|
(176 << 24) | /* sec. latency timer */ |
|
((unsigned int)dev->subordinate->busn_res.end << 16) | /* subordinate bus */ |
|
((unsigned int)dev->subordinate->busn_res.start << 8) | /* secondary bus */ |
|
dev->subordinate->primary); /* primary bus */ |
|
|
|
/* |
|
* Set up the bridging state: |
|
* - enable write posting. |
|
* - memory window 0 prefetchable, window 1 non-prefetchable |
|
* - PCI interrupts enabled if a PCI interrupt exists.. |
|
*/ |
|
bridge = config_readw(socket, CB_BRIDGE_CONTROL); |
|
bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN); |
|
bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN; |
|
config_writew(socket, CB_BRIDGE_CONTROL, bridge); |
|
} |
|
|
|
/** |
|
* yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge |
|
* @cardbus_bridge: The PCI bus which the CardBus bridge bridges to |
|
* |
|
* Checks if devices on the bus which the CardBus bridge bridges to would be |
|
* invisible during PCI scans because of a misconfigured subordinate number |
|
* of the parent brige - some BIOSes seem to be too lazy to set it right. |
|
* Does the fixup carefully by checking how far it can go without conflicts. |
|
* See http://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information. |
|
*/ |
|
static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge) |
|
{ |
|
struct pci_bus *sibling; |
|
unsigned char upper_limit; |
|
/* |
|
* We only check and fix the parent bridge: All systems which need |
|
* this fixup that have been reviewed are laptops and the only bridge |
|
* which needed fixing was the parent bridge of the CardBus bridge: |
|
*/ |
|
struct pci_bus *bridge_to_fix = cardbus_bridge->parent; |
|
|
|
/* Check bus numbers are already set up correctly: */ |
|
if (bridge_to_fix->busn_res.end >= cardbus_bridge->busn_res.end) |
|
return; /* The subordinate number is ok, nothing to do */ |
|
|
|
if (!bridge_to_fix->parent) |
|
return; /* Root bridges are ok */ |
|
|
|
/* stay within the limits of the bus range of the parent: */ |
|
upper_limit = bridge_to_fix->parent->busn_res.end; |
|
|
|
/* check the bus ranges of all sibling bridges to prevent overlap */ |
|
list_for_each_entry(sibling, &bridge_to_fix->parent->children, |
|
node) { |
|
/* |
|
* If the sibling has a higher secondary bus number |
|
* and it's secondary is equal or smaller than our |
|
* current upper limit, set the new upper limit to |
|
* the bus number below the sibling's range: |
|
*/ |
|
if (sibling->busn_res.start > bridge_to_fix->busn_res.end |
|
&& sibling->busn_res.start <= upper_limit) |
|
upper_limit = sibling->busn_res.start - 1; |
|
} |
|
|
|
/* Show that the wanted subordinate number is not possible: */ |
|
if (cardbus_bridge->busn_res.end > upper_limit) |
|
dev_warn(&cardbus_bridge->dev, |
|
"Upper limit for fixing this bridge's parent bridge: #%02x\n", |
|
upper_limit); |
|
|
|
/* If we have room to increase the bridge's subordinate number, */ |
|
if (bridge_to_fix->busn_res.end < upper_limit) { |
|
|
|
/* use the highest number of the hidden bus, within limits */ |
|
unsigned char subordinate_to_assign = |
|
min_t(int, cardbus_bridge->busn_res.end, upper_limit); |
|
|
|
dev_info(&bridge_to_fix->dev, |
|
"Raising subordinate bus# of parent bus (#%02x) from #%02x to #%02x\n", |
|
bridge_to_fix->number, |
|
(int)bridge_to_fix->busn_res.end, |
|
subordinate_to_assign); |
|
|
|
/* Save the new subordinate in the bus struct of the bridge */ |
|
bridge_to_fix->busn_res.end = subordinate_to_assign; |
|
|
|
/* and update the PCI config space with the new subordinate */ |
|
pci_write_config_byte(bridge_to_fix->self, |
|
PCI_SUBORDINATE_BUS, bridge_to_fix->busn_res.end); |
|
} |
|
} |
|
|
|
/* |
|
* Initialize a cardbus controller. Make sure we have a usable |
|
* interrupt, and that we can map the cardbus area. Fill in the |
|
* socket information structure.. |
|
*/ |
|
static int yenta_probe(struct pci_dev *dev, const struct pci_device_id *id) |
|
{ |
|
struct yenta_socket *socket; |
|
int ret; |
|
|
|
/* |
|
* If we failed to assign proper bus numbers for this cardbus |
|
* controller during PCI probe, its subordinate pci_bus is NULL. |
|
* Bail out if so. |
|
*/ |
|
if (!dev->subordinate) { |
|
dev_err(&dev->dev, "no bus associated! (try 'pci=assign-busses')\n"); |
|
return -ENODEV; |
|
} |
|
|
|
socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL); |
|
if (!socket) |
|
return -ENOMEM; |
|
|
|
/* prepare pcmcia_socket */ |
|
socket->socket.ops = ¥ta_socket_operations; |
|
socket->socket.resource_ops = &pccard_nonstatic_ops; |
|
socket->socket.dev.parent = &dev->dev; |
|
socket->socket.driver_data = socket; |
|
socket->socket.owner = THIS_MODULE; |
|
socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD; |
|
socket->socket.map_size = 0x1000; |
|
socket->socket.cb_dev = dev; |
|
|
|
/* prepare struct yenta_socket */ |
|
socket->dev = dev; |
|
pci_set_drvdata(dev, socket); |
|
|
|
/* |
|
* Do some basic sanity checking.. |
|
*/ |
|
if (pci_enable_device(dev)) { |
|
ret = -EBUSY; |
|
goto free; |
|
} |
|
|
|
ret = pci_request_regions(dev, "yenta_socket"); |
|
if (ret) |
|
goto disable; |
|
|
|
if (!pci_resource_start(dev, 0)) { |
|
dev_err(&dev->dev, "No cardbus resource!\n"); |
|
ret = -ENODEV; |
|
goto release; |
|
} |
|
|
|
/* |
|
* Ok, start setup.. Map the cardbus registers, |
|
* and request the IRQ. |
|
*/ |
|
socket->base = ioremap(pci_resource_start(dev, 0), 0x1000); |
|
if (!socket->base) { |
|
ret = -ENOMEM; |
|
goto release; |
|
} |
|
|
|
/* |
|
* report the subsystem vendor and device for help debugging |
|
* the irq stuff... |
|
*/ |
|
dev_info(&dev->dev, "CardBus bridge found [%04x:%04x]\n", |
|
dev->subsystem_vendor, dev->subsystem_device); |
|
|
|
yenta_config_init(socket); |
|
|
|
/* Disable all events */ |
|
cb_writel(socket, CB_SOCKET_MASK, 0x0); |
|
|
|
/* Set up the bridge regions.. */ |
|
yenta_allocate_resources(socket); |
|
|
|
socket->cb_irq = dev->irq; |
|
|
|
/* Do we have special options for the device? */ |
|
if (id->driver_data != CARDBUS_TYPE_DEFAULT && |
|
id->driver_data < ARRAY_SIZE(cardbus_type)) { |
|
socket->type = &cardbus_type[id->driver_data]; |
|
|
|
ret = socket->type->override(socket); |
|
if (ret < 0) |
|
goto unmap; |
|
} |
|
|
|
/* We must finish initialization here */ |
|
|
|
if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) { |
|
/* No IRQ or request_irq failed. Poll */ |
|
socket->cb_irq = 0; /* But zero is a valid IRQ number. */ |
|
timer_setup(&socket->poll_timer, yenta_interrupt_wrapper, 0); |
|
mod_timer(&socket->poll_timer, jiffies + HZ); |
|
dev_info(&dev->dev, |
|
"no PCI IRQ, CardBus support disabled for this socket.\n"); |
|
dev_info(&dev->dev, |
|
"check your BIOS CardBus, BIOS IRQ or ACPI settings.\n"); |
|
} else { |
|
socket->socket.features |= SS_CAP_CARDBUS; |
|
} |
|
|
|
/* Figure out what the dang thing can do for the PCMCIA layer... */ |
|
yenta_interrogate(socket); |
|
yenta_get_socket_capabilities(socket, isa_interrupts); |
|
dev_info(&dev->dev, "Socket status: %08x\n", |
|
cb_readl(socket, CB_SOCKET_STATE)); |
|
|
|
yenta_fixup_parent_bridge(dev->subordinate); |
|
|
|
/* Register it with the pcmcia layer.. */ |
|
ret = pcmcia_register_socket(&socket->socket); |
|
if (ret) |
|
goto free_irq; |
|
|
|
/* Add the yenta register attributes */ |
|
ret = device_create_file(&dev->dev, &dev_attr_yenta_registers); |
|
if (ret) |
|
goto unregister_socket; |
|
|
|
return ret; |
|
|
|
/* error path... */ |
|
unregister_socket: |
|
pcmcia_unregister_socket(&socket->socket); |
|
free_irq: |
|
if (socket->cb_irq) |
|
free_irq(socket->cb_irq, socket); |
|
else |
|
del_timer_sync(&socket->poll_timer); |
|
unmap: |
|
iounmap(socket->base); |
|
yenta_free_resources(socket); |
|
release: |
|
pci_release_regions(dev); |
|
disable: |
|
pci_disable_device(dev); |
|
free: |
|
pci_set_drvdata(dev, NULL); |
|
kfree(socket); |
|
return ret; |
|
} |
|
|
|
#ifdef CONFIG_PM_SLEEP |
|
static int yenta_dev_suspend_noirq(struct device *dev) |
|
{ |
|
struct pci_dev *pdev = to_pci_dev(dev); |
|
struct yenta_socket *socket = pci_get_drvdata(pdev); |
|
|
|
if (!socket) |
|
return 0; |
|
|
|
if (socket->type && socket->type->save_state) |
|
socket->type->save_state(socket); |
|
|
|
pci_save_state(pdev); |
|
pci_read_config_dword(pdev, 16*4, &socket->saved_state[0]); |
|
pci_read_config_dword(pdev, 17*4, &socket->saved_state[1]); |
|
pci_disable_device(pdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int yenta_dev_resume_noirq(struct device *dev) |
|
{ |
|
struct pci_dev *pdev = to_pci_dev(dev); |
|
struct yenta_socket *socket = pci_get_drvdata(pdev); |
|
int ret; |
|
|
|
if (!socket) |
|
return 0; |
|
|
|
pci_write_config_dword(pdev, 16*4, socket->saved_state[0]); |
|
pci_write_config_dword(pdev, 17*4, socket->saved_state[1]); |
|
|
|
ret = pci_enable_device(pdev); |
|
if (ret) |
|
return ret; |
|
|
|
pci_set_master(pdev); |
|
|
|
if (socket->type && socket->type->restore_state) |
|
socket->type->restore_state(socket); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct dev_pm_ops yenta_pm_ops = { |
|
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(yenta_dev_suspend_noirq, yenta_dev_resume_noirq) |
|
}; |
|
|
|
#define YENTA_PM_OPS (¥ta_pm_ops) |
|
#else |
|
#define YENTA_PM_OPS NULL |
|
#endif |
|
|
|
#define CB_ID(vend, dev, type) \ |
|
{ \ |
|
.vendor = vend, \ |
|
.device = dev, \ |
|
.subvendor = PCI_ANY_ID, \ |
|
.subdevice = PCI_ANY_ID, \ |
|
.class = PCI_CLASS_BRIDGE_CARDBUS << 8, \ |
|
.class_mask = ~0, \ |
|
.driver_data = CARDBUS_TYPE_##type, \ |
|
} |
|
|
|
static const struct pci_device_id yenta_table[] = { |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI), |
|
|
|
/* |
|
* TBD: Check if these TI variants can use more |
|
* advanced overrides instead. (I can't get the |
|
* data sheets for these devices. --rmk) |
|
*/ |
|
#ifdef CONFIG_YENTA_TI |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI), |
|
|
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X), |
|
|
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX), |
|
|
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250), |
|
|
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX), |
|
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX), |
|
|
|
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, ENE), |
|
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, ENE), |
|
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, ENE), |
|
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, ENE), |
|
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE), |
|
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE), |
|
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE), |
|
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE), |
|
#endif /* CONFIG_YENTA_TI */ |
|
|
|
#ifdef CONFIG_YENTA_RICOH |
|
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH), |
|
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH), |
|
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH), |
|
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH), |
|
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH), |
|
#endif |
|
|
|
#ifdef CONFIG_YENTA_TOSHIBA |
|
CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95), |
|
CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97), |
|
CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97), |
|
#endif |
|
|
|
#ifdef CONFIG_YENTA_O2 |
|
CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO), |
|
#endif |
|
|
|
/* match any cardbus bridge */ |
|
CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT), |
|
{ /* all zeroes */ } |
|
}; |
|
MODULE_DEVICE_TABLE(pci, yenta_table); |
|
|
|
|
|
static struct pci_driver yenta_cardbus_driver = { |
|
.name = "yenta_cardbus", |
|
.id_table = yenta_table, |
|
.probe = yenta_probe, |
|
.remove = yenta_close, |
|
.driver.pm = YENTA_PM_OPS, |
|
}; |
|
|
|
module_pci_driver(yenta_cardbus_driver); |
|
|
|
MODULE_LICENSE("GPL");
|
|
|