* Changelog:
* Aug 2002: Manfred Spraul <manfred@colorfullife.com>
* Dynamically adjust the size of the bridge resource
- *
+ *
* May 2003: Dominik Brodowski <linux@brodo.de>
* Merge pci_socket.c and yenta.c into one file
*/
#include <linux/init.h>
#include <linux/pci.h>
-#include <linux/sched.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/module.h>
+#include <linux/io.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/ss.h>
#include <pcmcia/cs.h>
-#include <asm/io.h>
-
#include "yenta_socket.h"
#include "i82365.h"
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!");
-#if 0
-#define debug(x,args...) printk(KERN_DEBUG "%s: " x, __func__ , ##args)
-#else
-#define debug(x,args...)
-#endif
+#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);
+#endif
static unsigned int override_bios;
module_param(override_bios, uint, 0000);
-MODULE_PARM_DESC (override_bios, "yenta ignore bios resource allocation");
+MODULE_PARM_DESC(override_bios, "yenta ignore bios resource allocation");
/*
* Generate easy-to-use ways of reading a cardbus sockets
static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg)
{
u32 val = readl(socket->base + reg);
- debug("%p %04x %08x\n", socket, reg, val);
+ debug("%04x %08x\n", socket, reg, val);
return val;
}
static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val)
{
- debug("%p %04x %08x\n", socket, reg, val);
+ debug("%04x %08x\n", socket, reg, val);
writel(val, socket->base + reg);
readl(socket->base + reg); /* avoid problems with PCI write posting */
}
{
u8 val;
pci_read_config_byte(socket->dev, offset, &val);
- debug("%p %04x %02x\n", socket, offset, val);
+ debug("%04x %02x\n", socket, offset, val);
return val;
}
{
u16 val;
pci_read_config_word(socket->dev, offset, &val);
- debug("%p %04x %04x\n", socket, offset, val);
+ debug("%04x %04x\n", socket, offset, val);
return val;
}
{
u32 val;
pci_read_config_dword(socket->dev, offset, &val);
- debug("%p %04x %08x\n", socket, 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("%p %04x %02x\n", socket, offset, 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("%p %04x %04x\n", socket, offset, 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("%p %04x %08x\n", socket, offset, 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("%p %04x %02x\n", socket, reg, val);
+ debug("%04x %02x\n", socket, reg, val);
return val;
}
u16 val;
val = readb(socket->base + 0x800 + reg);
val |= readb(socket->base + 0x800 + reg + 1) << 8;
- debug("%p %04x %04x\n", socket, reg, val);
+ debug("%04x %04x\n", socket, reg, val);
return val;
}
static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val)
{
- debug("%p %04x %02x\n", socket, reg, 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("%p %04x %04x\n", socket, reg, val);
+ debug("%04x %04x\n", socket, reg, val);
writeb(val, socket->base + 0x800 + reg);
writeb(val >> 8, socket->base + 0x800 + reg + 1);
if (state & CB_CBCARD) {
- val |= SS_CARDBUS;
+ 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;
return 0;
}
-static void yenta_get_power(struct yenta_socket *socket, socket_state_t *state)
-{
- if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) &&
- (socket->flags & YENTA_16BIT_POWER_EXCA)) {
- u8 reg, vcc, vpp;
-
- reg = exca_readb(socket, I365_POWER);
- vcc = reg & I365_VCC_MASK;
- vpp = reg & I365_VPP1_MASK;
- state->Vcc = state->Vpp = 0;
-
- if (socket->flags & YENTA_16BIT_POWER_DF) {
- if (vcc == I365_VCC_3V)
- state->Vcc = 33;
- if (vcc == I365_VCC_5V)
- state->Vcc = 50;
- if (vpp == I365_VPP1_5V)
- state->Vpp = state->Vcc;
- if (vpp == I365_VPP1_12V)
- state->Vpp = 120;
- } else {
- if (reg & I365_VCC_5V) {
- state->Vcc = 50;
- if (vpp == I365_VPP1_5V)
- state->Vpp = 50;
- if (vpp == I365_VPP1_12V)
- state->Vpp = 120;
- }
- }
- } else {
- u32 control;
-
- control = cb_readl(socket, CB_SOCKET_CONTROL);
-
- switch (control & CB_SC_VCC_MASK) {
- case CB_SC_VCC_5V: state->Vcc = 50; break;
- case CB_SC_VCC_3V: state->Vcc = 33; break;
- default: state->Vcc = 0;
- }
-
- switch (control & CB_SC_VPP_MASK) {
- case CB_SC_VPP_12V: state->Vpp = 120; break;
- case CB_SC_VPP_5V: state->Vpp = 50; break;
- case CB_SC_VPP_3V: state->Vpp = 33; break;
- default: state->Vpp = 0;
- }
- }
-}
-
-static int yenta_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
-{
- struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
- u8 reg;
- u32 control;
-
- control = cb_readl(socket, CB_SOCKET_CONTROL);
-
- yenta_get_power(socket, state);
- state->io_irq = socket->io_irq;
-
- if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) {
- u16 bridge = config_readw(socket, CB_BRIDGE_CONTROL);
- if (bridge & CB_BRIDGE_CRST)
- state->flags |= SS_RESET;
- return 0;
- }
-
- /* 16-bit card state.. */
- reg = exca_readb(socket, I365_POWER);
- state->flags = (reg & I365_PWR_AUTO) ? SS_PWR_AUTO : 0;
- state->flags |= (reg & I365_PWR_OUT) ? SS_OUTPUT_ENA : 0;
-
- reg = exca_readb(socket, I365_INTCTL);
- state->flags |= (reg & I365_PC_RESET) ? 0 : SS_RESET;
- state->flags |= (reg & I365_PC_IOCARD) ? SS_IOCARD : 0;
-
- reg = exca_readb(socket, I365_CSCINT);
- state->csc_mask = (reg & I365_CSC_DETECT) ? SS_DETECT : 0;
- if (state->flags & SS_IOCARD) {
- state->csc_mask |= (reg & I365_CSC_STSCHG) ? SS_STSCHG : 0;
- } else {
- state->csc_mask |= (reg & I365_CSC_BVD1) ? SS_BATDEAD : 0;
- state->csc_mask |= (reg & I365_CSC_BVD2) ? SS_BATWARN : 0;
- state->csc_mask |= (reg & I365_CSC_READY) ? SS_READY : 0;
- }
-
- 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 */
/* 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;
+ 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;
+ 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;
+ 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;
+ case 50:
+ reg |= I365_VPP1_5V | I365_VPP2_5V;
+ break;
+ case 120:
+ reg |= I365_VPP1_12V | I365_VPP2_12V;
+ break;
}
}
} 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;
+ 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;
+ 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);
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
u16 bridge;
- yenta_set_power(socket, state);
+ /* 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) {
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 (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 = I365_CSC_DETECT;
if (state->flags & SS_IOCARD) {
- if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG;
+ if (state->csc_mask & SS_STSCHG)
+ reg |= I365_CSC_STSCHG;
} else {
- if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1;
- if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2;
- if (state->csc_mask & SS_READY) reg |= I365_CSC_READY;
+ if (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)
+ 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;
}
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);
+ 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)
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;
+ 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);
-static irqreturn_t yenta_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t yenta_interrupt(int irq, void *dev_id)
{
unsigned int events;
struct yenta_socket *socket = (struct yenta_socket *) dev_id;
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) {
if (events)
pcmcia_parse_events(&socket->socket, events);
- if (cb_event || csc)
- return IRQ_HANDLED;
-
- return IRQ_NONE;
+ return IRQ_HANDLED;
}
static void yenta_interrupt_wrapper(unsigned long data)
{
struct yenta_socket *socket = (struct yenta_socket *) data;
- yenta_interrupt(0, (void *)socket, NULL);
+ yenta_interrupt(0, (void *)socket);
socket->poll_timer.expires = jiffies + HZ;
add_timer(&socket->poll_timer);
}
* 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_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
int i;
size = BRIDGE_MEM_MAX;
if (size > avail/8) {
- size=(avail+1)/8;
+ size = (avail+1)/8;
/* round size down to next power of 2 */
i = 0;
while ((size /= 2) != 0)
do {
if (allocate_resource(root, res, size, start, end, align,
- NULL, NULL)==0) {
+ NULL, NULL) == 0) {
return 1;
}
size = size/2;
u32 min)
{
int i;
- for (i=0; i<PCI_BUS_NUM_RESOURCES; i++) {
- struct resource * root = socket->dev->bus->resource[i];
+ for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
+ struct resource *root = socket->dev->bus->resource[i];
if (!root)
continue;
static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end)
{
- struct resource *root, *res;
+ struct pci_dev *dev = socket->dev;
+ struct resource *res;
struct pci_bus_region region;
unsigned mask;
- res = socket->dev->resource + PCI_BRIDGE_RESOURCES + nr;
+ res = dev->resource + PCI_BRIDGE_RESOURCES + nr;
/* Already allocated? */
if (res->parent)
return 0;
if (type & IORESOURCE_IO)
mask = ~3;
- res->name = socket->dev->subordinate->name;
+ 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(socket->dev, res, ®ion);
- root = pci_find_parent_resource(socket->dev, res);
- if (root && (request_resource(root, res) == 0))
+ pcibios_bus_to_resource(dev, res, ®ion);
+ if (pci_claim_resource(dev, PCI_BRIDGE_RESOURCES + nr) == 0)
return 0;
- printk(KERN_INFO "yenta %s: Preassigned resource %d busy or not available, reconfiguring...\n",
- pci_name(socket->dev), nr);
+ dev_printk(KERN_INFO, &dev->dev,
+ "Preassigned resource %d busy or not available, "
+ "reconfiguring...\n",
+ nr);
}
if (type & IORESOURCE_IO) {
return 1;
}
- printk(KERN_INFO "yenta %s: no resource of type %x available, trying to continue...\n",
- pci_name(socket->dev), type);
+ dev_printk(KERN_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_resources(struct yenta_socket *socket)
{
int i;
- for (i=0;i<4;i++) {
+ for (i = 0; i < 4; i++) {
struct resource *res;
res = socket->dev->resource + PCI_BRIDGE_RESOURCES + i;
if (res->start != 0 && res->end != 0)
/*
* Close it down - release our resources and go home..
*/
-static void yenta_close(struct pci_dev *dev)
+static void __devexit yenta_close(struct pci_dev *dev)
{
struct yenta_socket *sock = pci_get_drvdata(dev);
/* 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);
.init = yenta_sock_init,
.suspend = yenta_sock_suspend,
.get_status = yenta_get_status,
- .get_socket = yenta_get_socket,
.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,
* 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,
},
+#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
+#ifdef CONFIG_YENTA_TI
[CARDBUS_TYPE_ENE] = {
.override = ene_override,
.save_state = ti_save_state,
.restore_state = ti_restore_state,
.sock_init = ti_init,
},
+#endif
};
}
+/*
+ * 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 pt_regs *regs)
+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;
+ u32 cb_event;
/* Clear interrupt status for the event */
cb_event = cb_readl(socket, CB_SOCKET_EVENT);
socket->probe_status = 0;
- if (request_irq(socket->cb_irq, yenta_probe_handler, SA_SHIRQ, "yenta", socket)) {
- printk(KERN_WARNING "Yenta: request_irq() in yenta_probe_cb_irq() failed!\n");
+ if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) {
+ dev_printk(KERN_WARNING, &socket->dev->dev,
+ "request_irq() in yenta_probe_cb_irq() failed!\n");
return -1;
}
return (int) socket->probe_status;
}
+#endif /* CONFIG_YENTA_TI */
/*
else
socket->socket.irq_mask = 0;
- printk(KERN_INFO "Yenta: ISA IRQ mask 0x%04x, PCI irq %d\n",
- socket->socket.irq_mask, socket->cb_irq);
+ dev_printk(KERN_INFO, &socket->dev->dev,
+ "ISA IRQ mask 0x%04x, PCI irq %d\n",
+ socket->socket.irq_mask, socket->cb_irq);
}
/*
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 list_head *tmp;
+ 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->subordinate >= cardbus_bridge->subordinate)
+ 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->subordinate;
+
+ /* check the bus ranges of all silbling bridges to prevent overlap */
+ list_for_each(tmp, &bridge_to_fix->parent->children) {
+ struct pci_bus *silbling = pci_bus_b(tmp);
+ /*
+ * If the silbling 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 silbling's range:
+ */
+ if (silbling->secondary > bridge_to_fix->subordinate
+ && silbling->secondary <= upper_limit)
+ upper_limit = silbling->secondary - 1;
+ }
+
+ /* Show that the wanted subordinate number is not possible: */
+ if (cardbus_bridge->subordinate > upper_limit)
+ dev_printk(KERN_WARNING, &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->subordinate < upper_limit) {
+
+ /* use the highest number of the hidden bus, within limits */
+ unsigned char subordinate_to_assign =
+ min(cardbus_bridge->subordinate, upper_limit);
+
+ dev_printk(KERN_INFO, &bridge_to_fix->dev,
+ "Raising subordinate bus# of parent "
+ "bus (#%02x) from #%02x to #%02x\n",
+ bridge_to_fix->number,
+ bridge_to_fix->subordinate, subordinate_to_assign);
+
+ /* Save the new subordinate in the bus struct of the bridge */
+ bridge_to_fix->subordinate = 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->subordinate);
+ }
+}
+
/*
* 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 __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_id *id)
+static int __devinit yenta_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
struct yenta_socket *socket;
int ret;
* Bail out if so.
*/
if (!dev->subordinate) {
- printk(KERN_ERR "Yenta: no bus associated with %s! "
- "(try 'pci=assign-busses')\n", pci_name(dev));
+ dev_printk(KERN_ERR, &dev->dev, "no bus associated! "
+ "(try 'pci=assign-busses')\n");
return -ENODEV;
}
- socket = kmalloc(sizeof(struct yenta_socket), GFP_KERNEL);
+ socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL);
if (!socket)
return -ENOMEM;
- memset(socket, 0, sizeof(*socket));
/* prepare pcmcia_socket */
socket->socket.ops = ¥ta_socket_operations;
socket->socket.resource_ops = &pccard_nonstatic_ops;
- socket->socket.dev.dev = &dev->dev;
+ 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;
goto disable;
if (!pci_resource_start(dev, 0)) {
- printk(KERN_ERR "No cardbus resource!\n");
+ dev_printk(KERN_ERR, &dev->dev, "No cardbus resource!\n");
ret = -ENODEV;
goto release;
}
* report the subsystem vendor and device for help debugging
* the irq stuff...
*/
- printk(KERN_INFO "Yenta: CardBus bridge found at %s [%04x:%04x]\n",
- pci_name(dev), dev->subsystem_vendor, dev->subsystem_device);
+ dev_printk(KERN_INFO, &dev->dev, "CardBus bridge found [%04x:%04x]\n",
+ dev->subsystem_vendor, dev->subsystem_device);
yenta_config_init(socket);
/* We must finish initialization here */
- if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, SA_SHIRQ, "yenta", socket)) {
+ 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. */
init_timer(&socket->poll_timer);
socket->poll_timer.data = (unsigned long)socket;
socket->poll_timer.expires = jiffies + HZ;
add_timer(&socket->poll_timer);
- printk(KERN_INFO "Yenta: no PCI IRQ, CardBus support disabled for this socket.\n"
- KERN_INFO "Yenta: check your BIOS CardBus, BIOS IRQ or ACPI settings.\n");
+ dev_printk(KERN_INFO, &dev->dev,
+ "no PCI IRQ, CardBus support disabled for this "
+ "socket.\n");
+ dev_printk(KERN_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);
- printk(KERN_INFO "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE));
+ dev_printk(KERN_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 == 0) {
/* Add the yenta register attributes */
- device_create_file(&dev->dev, &dev_attr_yenta_registers);
- goto out;
+ ret = device_create_file(&dev->dev, &dev_attr_yenta_registers);
+ if (ret == 0)
+ goto out;
+
+ /* error path... */
+ pcmcia_unregister_socket(&socket->socket);
}
unmap:
return ret;
}
-
-static int yenta_dev_suspend (struct pci_dev *dev, pm_message_t state)
+#ifdef CONFIG_PM
+static int yenta_dev_suspend_noirq(struct device *dev)
{
- struct yenta_socket *socket = pci_get_drvdata(dev);
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct yenta_socket *socket = pci_get_drvdata(pdev);
int ret;
- ret = pcmcia_socket_dev_suspend(&dev->dev, state);
+ ret = pcmcia_socket_dev_suspend(dev);
- if (socket) {
- if (socket->type && socket->type->save_state)
- socket->type->save_state(socket);
+ if (!socket)
+ return ret;
- /* FIXME: pci_save_state needs to have a better interface */
- pci_save_state(dev);
- pci_read_config_dword(dev, 16*4, &socket->saved_state[0]);
- pci_read_config_dword(dev, 17*4, &socket->saved_state[1]);
- pci_disable_device(dev);
+ if (socket->type && socket->type->save_state)
+ socket->type->save_state(socket);
- /*
- * Some laptops (IBM T22) do not like us putting the Cardbus
- * bridge into D3. At a guess, some other laptop will
- * probably require this, so leave it commented out for now.
- */
- /* pci_set_power_state(dev, 3); */
- }
+ 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);
+
+ /*
+ * Some laptops (IBM T22) do not like us putting the Cardbus
+ * bridge into D3. At a guess, some other laptop will
+ * probably require this, so leave it commented out for now.
+ */
+ /* pci_set_power_state(dev, 3); */
return ret;
}
-
-static int yenta_dev_resume (struct pci_dev *dev)
+static int yenta_dev_resume_noirq(struct device *dev)
{
- struct yenta_socket *socket = pci_get_drvdata(dev);
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct yenta_socket *socket = pci_get_drvdata(pdev);
+ int ret;
- if (socket) {
- pci_set_power_state(dev, 0);
- /* FIXME: pci_restore_state needs to have a better interface */
- pci_restore_state(dev);
- pci_write_config_dword(dev, 16*4, socket->saved_state[0]);
- pci_write_config_dword(dev, 17*4, socket->saved_state[1]);
- pci_enable_device(dev);
- pci_set_master(dev);
-
- if (socket->type && socket->type->restore_state)
- socket->type->restore_state(socket);
- }
+ 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;
- return pcmcia_socket_dev_resume(&dev->dev);
+ pci_set_master(pdev);
+
+ if (socket->type && socket->type->restore_state)
+ socket->type->restore_state(socket);
+
+ pcmcia_socket_dev_early_resume(dev);
+ return 0;
+}
+
+static int yenta_dev_resume(struct device *dev)
+{
+ pcmcia_socket_dev_late_resume(dev);
+ return 0;
}
+static const struct dev_pm_ops yenta_pm_ops = {
+ .suspend_noirq = yenta_dev_suspend_noirq,
+ .resume_noirq = yenta_dev_resume_noirq,
+ .resume = yenta_dev_resume,
+ .freeze_noirq = yenta_dev_suspend_noirq,
+ .thaw_noirq = yenta_dev_resume_noirq,
+ .thaw = yenta_dev_resume,
+ .poweroff_noirq = yenta_dev_suspend_noirq,
+ .restore_noirq = yenta_dev_resume_noirq,
+ .restore = yenta_dev_resume,
+};
+
+#define YENTA_PM_OPS (¥ta_pm_ops)
+#else
+#define YENTA_PM_OPS NULL
+#endif
-#define CB_ID(vend,dev,type) \
+#define CB_ID(vend, dev, type) \
{ \
.vendor = vend, \
.device = dev, \
.driver_data = CARDBUS_TYPE_##type, \
}
-static struct pci_device_id yenta_table [] = {
+static struct pci_device_id yenta_table[] = {
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI),
/*
* 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_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_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),
.id_table = yenta_table,
.probe = yenta_probe,
.remove = __devexit_p(yenta_close),
- .suspend = yenta_dev_suspend,
- .resume = yenta_dev_resume,
+ .driver.pm = YENTA_PM_OPS,
};
static int __init yenta_socket_init(void)
{
- return pci_register_driver (¥ta_cardbus_driver);
+ return pci_register_driver(¥ta_cardbus_driver);
}
-static void __exit yenta_socket_exit (void)
+static void __exit yenta_socket_exit(void)
{
- pci_unregister_driver (¥ta_cardbus_driver);
+ pci_unregister_driver(¥ta_cardbus_driver);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff