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|---|
#include <linux/wait.h> | #include <linux/wait.h> |
#include <linux/delay.h> | #include <linux/delay.h> |
#include <linux/pci.h> | #include <linux/pci.h> |
#include <linux/kthread.h> |
#include <linux/workqueue.h> |
| |
/* Host registers (relative to pci base address): */ | /* Host registers (relative to pci base address): */ |
enum { | enum { |
|
|
|---|
SOCK_MS_DATA = 0x188, | SOCK_MS_DATA = 0x188, |
SOCK_MS_STATUS = 0x18c, | SOCK_MS_STATUS = 0x18c, |
SOCK_MS_SYSTEM = 0x190, | SOCK_MS_SYSTEM = 0x190, |
SOCK_FIFO_ACCESS = 0x200 }; |
SOCK_FIFO_ACCESS = 0x200 |
|
}; |
|
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#define TIFM_IRQ_ENABLE 0x80000000 |
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#define TIFM_IRQ_SOCKMASK(x) (x) |
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#define TIFM_IRQ_CARDMASK(x) ((x) << 8) |
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#define TIFM_IRQ_FIFOMASK(x) ((x) << 16) |
|
#define TIFM_IRQ_SETALL 0xffffffff |
|
| |
#define TIFM_CTRL_LED 0x00000040 | #define TIFM_CTRL_LED 0x00000040 |
#define TIFM_CTRL_FAST_CLK 0x00000100 | #define TIFM_CTRL_FAST_CLK 0x00000100 |
|
|
|---|
#define TIFM_SOCK_STATE_POWERED 0x00000080 | #define TIFM_SOCK_STATE_POWERED 0x00000080 |
| |
#define TIFM_FIFO_ENABLE 0x00000001 /* Meaning of this constant is unverified */ | #define TIFM_FIFO_ENABLE 0x00000001 /* Meaning of this constant is unverified */ |
|
#define TIFM_FIFO_READY 0x00000001 /* Meaning of this constant is unverified */ |
#define TIFM_FIFO_INT_SETALL 0x0000ffff | #define TIFM_FIFO_INT_SETALL 0x0000ffff |
#define TIFM_FIFO_INTMASK 0x00000005 /* Meaning of this constant is unverified */ | #define TIFM_FIFO_INTMASK 0x00000005 /* Meaning of this constant is unverified */ |
| |
#define TIFM_DMA_RESET 0x00000002 /* Meaning of this constant is unverified */ | #define TIFM_DMA_RESET 0x00000002 /* Meaning of this constant is unverified */ |
#define TIFM_DMA_TX 0x00008000 /* Meaning of this constant is unverified */ | #define TIFM_DMA_TX 0x00008000 /* Meaning of this constant is unverified */ |
#define TIFM_DMA_EN 0x00000001 /* Meaning of this constant is unverified */ | #define TIFM_DMA_EN 0x00000001 /* Meaning of this constant is unverified */ |
|
#define TIFM_DMA_TSIZE 0x0000007f /* Meaning of this constant is unverified */ |
| |
typedef enum {FM_NULL = 0, FM_XD = 0x01, FM_MS = 0x02, FM_SD = 0x03} tifm_media_id; |
#define TIFM_TYPE_XD 1 |
|
#define TIFM_TYPE_MS 2 |
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#define TIFM_TYPE_SD 3 |
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|
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struct tifm_device_id { |
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unsigned char type; |
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}; |
| |
struct tifm_driver; | struct tifm_driver; |
struct tifm_dev { | struct tifm_dev { |
char __iomem *addr; |
char __iomem *addr; |
spinlock_t lock; |
spinlock_t lock; |
tifm_media_id media_id; |
unsigned char type; |
unsigned int socket_id; |
unsigned int socket_id; |
| |
void (*signal_irq)(struct tifm_dev *sock, |
void (*event)(struct tifm_dev *sock); |
unsigned int sock_irq_status); |
void (*data_event)(struct tifm_dev *sock); |
| |
struct tifm_driver *drv; |
struct device dev; |
struct device dev; |
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}; | }; |
| |
struct tifm_driver { | struct tifm_driver { |
tifm_media_id *id_table; |
struct tifm_device_id *id_table; |
int (*probe)(struct tifm_dev *dev); |
int (*probe)(struct tifm_dev *dev); |
void (*remove)(struct tifm_dev *dev); |
void (*remove)(struct tifm_dev *dev); |
int (*suspend)(struct tifm_dev *dev, |
int (*suspend)(struct tifm_dev *dev, |
pm_message_t state); |
pm_message_t state); |
int (*resume)(struct tifm_dev *dev); |
int (*resume)(struct tifm_dev *dev); |
| |
struct device_driver driver; | struct device_driver driver; |
}; | }; |
| |
|
/* Socket caps: */ |
|
enum { |
|
TIFM_SOCK_XD_CAP = 0x0001, // socket supports xD cards |
|
TIFM_SOCK_MS_PIF = 0x0002 // socket has Memorystick parallel i/f |
|
}; |
|
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struct tifm_adapter { | struct tifm_adapter { |
char __iomem *addr; | char __iomem *addr; |
spinlock_t lock; | spinlock_t lock; |
unsigned int irq_status; | unsigned int irq_status; |
unsigned int socket_change_set; | unsigned int socket_change_set; |
wait_queue_head_t change_set_notify; |
|
unsigned int id; | unsigned int id; |
unsigned int num_sockets; | unsigned int num_sockets; |
struct tifm_dev **sockets; |
struct completion *finish_me; |
struct task_struct *media_switcher; |
|
|
struct work_struct media_switcher; |
struct class_device cdev; | struct class_device cdev; |
struct device *dev; |
|
| |
void (*eject)(struct tifm_adapter *fm, struct tifm_dev *sock); |
void (*eject)(struct tifm_adapter *fm, |
|
struct tifm_dev *sock); |
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|
|
struct socket_t { |
|
struct tifm_dev *dev; |
|
unsigned int caps; |
|
} sockets[0]; |
}; | }; |
| |
struct tifm_adapter *tifm_alloc_adapter(void); |
struct tifm_adapter *tifm_alloc_adapter(unsigned int num_sockets, |
void tifm_free_device(struct device *dev); |
struct device *dev); |
void tifm_free_adapter(struct tifm_adapter *fm); |
int tifm_add_adapter(struct tifm_adapter *fm); |
int tifm_add_adapter(struct tifm_adapter *fm, int (*mediathreadfn)(void *data)); |
|
void tifm_remove_adapter(struct tifm_adapter *fm); | void tifm_remove_adapter(struct tifm_adapter *fm); |
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm); |
void tifm_free_adapter(struct tifm_adapter *fm); |
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|
|
void tifm_free_device(struct device *dev); |
|
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id, |
|
unsigned char type); |
|
|
int tifm_register_driver(struct tifm_driver *drv); | int tifm_register_driver(struct tifm_driver *drv); |
void tifm_unregister_driver(struct tifm_driver *drv); | void tifm_unregister_driver(struct tifm_driver *drv); |
void tifm_eject(struct tifm_dev *sock); | void tifm_eject(struct tifm_dev *sock); |
|
unsigned int tifm_get_sock_caps(struct tifm_dev *sock); |
int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents, | int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents, |
int direction); | int direction); |
void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents, | void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents, |
int direction); | int direction); |
|
void tifm_queue_work(struct work_struct *work); |
| |
static inline void *tifm_get_drvdata(struct tifm_dev *dev) | static inline void *tifm_get_drvdata(struct tifm_dev *dev) |
{ | { |
|
Lines 149-156
static inline void tifm_set_drvdata(stru
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Link Here
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|---|
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dev_set_drvdata(&dev->dev, data); | dev_set_drvdata(&dev->dev, data); |
} | } |
| |
struct tifm_device_id { |
|
tifm_media_id media_id; |
|
}; |
|
|
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#endif | #endif |
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|
|---|
* | * |
*/ | */ |
| |
#include <linux/tifm.h> |
#include "linux/tifm.h" |
#include <linux/dma-mapping.h> |
#include "linux/pci_ids.h" |
#include <linux/freezer.h> |
|
| |
#define DRIVER_NAME "tifm_7xx1" | #define DRIVER_NAME "tifm_7xx1" |
#define DRIVER_VERSION "0.7" |
#define DRIVER_VERSION "0.8" |
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|
|
#define TIFM_IRQ_ENABLE 0x80000000 |
|
#define TIFM_IRQ_SOCKMASK(x) (x) |
|
#define TIFM_IRQ_CARDMASK(x) ((x) << 8) |
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#define TIFM_IRQ_FIFOMASK(x) ((x) << 16) |
|
#define TIFM_IRQ_SETALL 0xffffffff |
|
|
|
static void tifm_7xx1_dummy_eject(struct tifm_adapter *fm, |
|
struct tifm_dev *sock) |
|
{ |
|
} |
| |
static void tifm_7xx1_eject(struct tifm_adapter *fm, struct tifm_dev *sock) | static void tifm_7xx1_eject(struct tifm_adapter *fm, struct tifm_dev *sock) |
{ | { |
|
Lines 22-28
static void tifm_7xx1_eject(struct tifm_
|
Link Here
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|---|
|
|---|
| |
spin_lock_irqsave(&fm->lock, flags); | spin_lock_irqsave(&fm->lock, flags); |
fm->socket_change_set |= 1 << sock->socket_id; | fm->socket_change_set |= 1 << sock->socket_id; |
wake_up_all(&fm->change_set_notify); |
tifm_queue_work(&fm->media_switcher); |
spin_unlock_irqrestore(&fm->lock, flags); | spin_unlock_irqrestore(&fm->lock, flags); |
} | } |
| |
|
Lines 30-37
static irqreturn_t tifm_7xx1_isr(int irq
|
Link Here
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|---|
|
|---|
{ | { |
struct tifm_adapter *fm = dev_id; | struct tifm_adapter *fm = dev_id; |
struct tifm_dev *sock; | struct tifm_dev *sock; |
unsigned int irq_status; |
unsigned int irq_status, cnt; |
unsigned int sock_irq_status, cnt; |
|
| |
spin_lock(&fm->lock); | spin_lock(&fm->lock); |
irq_status = readl(fm->addr + FM_INTERRUPT_STATUS); | irq_status = readl(fm->addr + FM_INTERRUPT_STATUS); |
|
Lines 44-56
static irqreturn_t tifm_7xx1_isr(int irq
|
Link Here
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|---|
writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE); | writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
| |
for (cnt = 0; cnt < fm->num_sockets; cnt++) { | for (cnt = 0; cnt < fm->num_sockets; cnt++) { |
sock = fm->sockets[cnt]; |
sock = fm->sockets[cnt].dev; |
sock_irq_status = (irq_status >> cnt) |
if (sock) { |
& (TIFM_IRQ_FIFOMASK(1) |
if ((irq_status >> cnt) & TIFM_IRQ_FIFOMASK(1)) |
| TIFM_IRQ_CARDMASK(1)); |
sock->data_event(sock); |
|
if ((irq_status >> cnt) & TIFM_IRQ_CARDMASK(1)) |
if (sock && sock_irq_status) |
sock->event(sock); |
sock->signal_irq(sock, sock_irq_status); |
} |
} | } |
| |
fm->socket_change_set |= irq_status | fm->socket_change_set |= irq_status |
|
Lines 58-114
static irqreturn_t tifm_7xx1_isr(int irq
|
Link Here
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|---|
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} | } |
writel(irq_status, fm->addr + FM_INTERRUPT_STATUS); | writel(irq_status, fm->addr + FM_INTERRUPT_STATUS); |
| |
if (!fm->socket_change_set) |
if (fm->finish_me) |
|
complete_all(fm->finish_me); |
|
else if (!fm->socket_change_set) |
writel(TIFM_IRQ_ENABLE, fm->addr + FM_SET_INTERRUPT_ENABLE); | writel(TIFM_IRQ_ENABLE, fm->addr + FM_SET_INTERRUPT_ENABLE); |
else | else |
wake_up_all(&fm->change_set_notify); |
tifm_queue_work(&fm->media_switcher); |
| |
spin_unlock(&fm->lock); | spin_unlock(&fm->lock); |
return IRQ_HANDLED; | return IRQ_HANDLED; |
} | } |
| |
static tifm_media_id tifm_7xx1_toggle_sock_power(char __iomem *sock_addr, |
static unsigned char tifm_7xx1_toggle_sock_power(char __iomem *sock_addr, |
int is_x2) |
unsigned int caps) |
{ | { |
unsigned int s_state; | unsigned int s_state; |
int cnt; | int cnt; |
| |
writel(0x0e00, sock_addr + SOCK_CONTROL); | writel(0x0e00, sock_addr + SOCK_CONTROL); |
| |
for (cnt = 0; cnt < 100; cnt++) { |
/* half a second should be enough */ |
|
for (cnt = 16; cnt <= 256; cnt <<= 1) { |
if (!(TIFM_SOCK_STATE_POWERED | if (!(TIFM_SOCK_STATE_POWERED |
& readl(sock_addr + SOCK_PRESENT_STATE))) | & readl(sock_addr + SOCK_PRESENT_STATE))) |
break; | break; |
msleep(10); |
|
|
msleep(cnt); |
} | } |
| |
s_state = readl(sock_addr + SOCK_PRESENT_STATE); | s_state = readl(sock_addr + SOCK_PRESENT_STATE); |
if (!(TIFM_SOCK_STATE_OCCUPIED & s_state)) | if (!(TIFM_SOCK_STATE_OCCUPIED & s_state)) |
return FM_NULL; |
return 0; |
| |
if (is_x2) { |
writel(readl(sock_addr + SOCK_CONTROL) | TIFM_CTRL_LED, |
writel((s_state & 7) | 0x0c00, sock_addr + SOCK_CONTROL); |
sock_addr + SOCK_CONTROL); |
} else { |
|
// SmartMedia cards need extra 40 msec |
if (caps & TIFM_SOCK_XD_CAP) { |
if (((readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7) == 1) | if (((readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7) == 1) |
msleep(40); | msleep(40); |
writel(readl(sock_addr + SOCK_CONTROL) | TIFM_CTRL_LED, |
|
sock_addr + SOCK_CONTROL); |
|
msleep(10); |
|
writel((s_state & 0x7) | 0x0c00 | TIFM_CTRL_LED, |
|
sock_addr + SOCK_CONTROL); |
|
} | } |
|
writel((s_state & 7) | 0x0c00, sock_addr + SOCK_CONTROL); |
|
msleep(10); |
| |
for (cnt = 0; cnt < 100; cnt++) { |
for (cnt = 16; cnt <= 256; cnt <<= 1) { |
if ((TIFM_SOCK_STATE_POWERED | if ((TIFM_SOCK_STATE_POWERED |
& readl(sock_addr + SOCK_PRESENT_STATE))) | & readl(sock_addr + SOCK_PRESENT_STATE))) |
break; | break; |
msleep(10); |
|
|
msleep(cnt); |
} | } |
| |
if (!is_x2) |
writel(readl(sock_addr + SOCK_CONTROL) & (~TIFM_CTRL_LED), |
writel(readl(sock_addr + SOCK_CONTROL) & (~TIFM_CTRL_LED), |
sock_addr + SOCK_CONTROL); |
sock_addr + SOCK_CONTROL); |
|
| |
return (readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7; | return (readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7; |
} | } |
|
Lines 119-245
tifm_7xx1_sock_addr(char __iomem *base_a
|
Link Here
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|
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return base_addr + ((sock_num + 1) << 10); | return base_addr + ((sock_num + 1) << 10); |
} | } |
| |
static int tifm_7xx1_switch_media(void *data) |
static void tifm_7xx1_switch_media(struct work_struct *work) |
{ | { |
struct tifm_adapter *fm = data; |
struct tifm_adapter *fm = container_of(work, struct tifm_adapter, |
unsigned long flags; |
media_switcher); |
tifm_media_id media_id; |
|
char *card_name = "xx"; |
|
int cnt, rc; |
|
struct tifm_dev *sock; | struct tifm_dev *sock; |
unsigned int socket_change_set; |
unsigned long flags; |
|
unsigned char media_id; |
while (1) { |
unsigned int socket_change_set, cnt; |
rc = wait_event_interruptible(fm->change_set_notify, |
|
fm->socket_change_set); |
|
if (rc == -ERESTARTSYS) |
|
try_to_freeze(); |
|
| |
spin_lock_irqsave(&fm->lock, flags); |
spin_lock_irqsave(&fm->lock, flags); |
socket_change_set = fm->socket_change_set; |
socket_change_set = fm->socket_change_set; |
fm->socket_change_set = 0; |
fm->socket_change_set = 0; |
| |
dev_dbg(fm->dev, "checking media set %x\n", |
dev_dbg(fm->cdev.dev, "checking media set %x\n", |
socket_change_set); |
socket_change_set); |
| |
if (kthread_should_stop()) |
if (!socket_change_set) { |
socket_change_set = (1 << fm->num_sockets) - 1; |
|
spin_unlock_irqrestore(&fm->lock, flags); | spin_unlock_irqrestore(&fm->lock, flags); |
|
return; |
|
} |
| |
if (!socket_change_set) |
for (cnt = 0; cnt < fm->num_sockets; cnt++) { |
|
if (!(socket_change_set & (1 << cnt))) |
continue; | continue; |
|
sock = fm->sockets[cnt].dev; |
spin_lock_irqsave(&fm->lock, flags); |
if (sock) { |
for (cnt = 0; cnt < fm->num_sockets; cnt++) { |
printk(KERN_INFO |
if (!(socket_change_set & (1 << cnt))) |
"%s : demand removing card from socket %u:%u\n", |
continue; |
fm->cdev.class_id, fm->id, cnt); |
sock = fm->sockets[cnt]; |
fm->sockets[cnt].dev = NULL; |
if (sock) { |
|
printk(KERN_INFO DRIVER_NAME |
|
": demand removing card from socket %d\n", |
|
cnt); |
|
fm->sockets[cnt] = NULL; |
|
spin_unlock_irqrestore(&fm->lock, flags); |
|
device_unregister(&sock->dev); |
|
spin_lock_irqsave(&fm->lock, flags); |
|
writel(0x0e00, |
|
tifm_7xx1_sock_addr(fm->addr, cnt) |
|
+ SOCK_CONTROL); |
|
} |
|
if (kthread_should_stop()) |
|
continue; |
|
|
|
spin_unlock_irqrestore(&fm->lock, flags); | spin_unlock_irqrestore(&fm->lock, flags); |
media_id = tifm_7xx1_toggle_sock_power( |
device_unregister(&sock->dev); |
tifm_7xx1_sock_addr(fm->addr, cnt), |
spin_lock_irqsave(&fm->lock, flags); |
fm->num_sockets == 2); |
writel(0x0e00, tifm_7xx1_sock_addr(fm->addr, cnt) |
if (media_id) { |
+ SOCK_CONTROL); |
sock = tifm_alloc_device(fm); |
|
if (sock) { |
|
sock->addr = tifm_7xx1_sock_addr(fm->addr, |
|
cnt); |
|
sock->media_id = media_id; |
|
sock->socket_id = cnt; |
|
switch (media_id) { |
|
case 1: |
|
card_name = "xd"; |
|
break; |
|
case 2: |
|
card_name = "ms"; |
|
break; |
|
case 3: |
|
card_name = "sd"; |
|
break; |
|
default: |
|
tifm_free_device(&sock->dev); |
|
spin_lock_irqsave(&fm->lock, flags); |
|
continue; |
|
} |
|
snprintf(sock->dev.bus_id, BUS_ID_SIZE, |
|
"tifm_%s%u:%u", card_name, |
|
fm->id, cnt); |
|
printk(KERN_INFO DRIVER_NAME |
|
": %s card detected in socket %d\n", |
|
card_name, cnt); |
|
if (!device_register(&sock->dev)) { |
|
spin_lock_irqsave(&fm->lock, flags); |
|
if (!fm->sockets[cnt]) { |
|
fm->sockets[cnt] = sock; |
|
sock = NULL; |
|
} |
|
spin_unlock_irqrestore(&fm->lock, flags); |
|
} |
|
if (sock) |
|
tifm_free_device(&sock->dev); |
|
} |
|
spin_lock_irqsave(&fm->lock, flags); |
|
} |
|
} | } |
| |
if (!kthread_should_stop()) { |
spin_unlock_irqrestore(&fm->lock, flags); |
writel(TIFM_IRQ_FIFOMASK(socket_change_set) |
|
| TIFM_IRQ_CARDMASK(socket_change_set), |
media_id = tifm_7xx1_toggle_sock_power( |
fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
tifm_7xx1_sock_addr(fm->addr, cnt), |
writel(TIFM_IRQ_FIFOMASK(socket_change_set) |
fm->sockets[cnt].caps); |
| TIFM_IRQ_CARDMASK(socket_change_set), |
|
fm->addr + FM_SET_INTERRUPT_ENABLE); |
// tifm_alloc_device will check if media_id is valid |
writel(TIFM_IRQ_ENABLE, |
sock = tifm_alloc_device(fm, cnt, media_id); |
fm->addr + FM_SET_INTERRUPT_ENABLE); |
if (sock) { |
spin_unlock_irqrestore(&fm->lock, flags); |
sock->addr = tifm_7xx1_sock_addr(fm->addr, cnt); |
} else { |
|
for (cnt = 0; cnt < fm->num_sockets; cnt++) { |
if (!device_register(&sock->dev)) { |
if (fm->sockets[cnt]) |
spin_lock_irqsave(&fm->lock, flags); |
fm->socket_change_set |= 1 << cnt; |
if (!fm->sockets[cnt].dev) { |
} |
fm->sockets[cnt].dev = sock; |
if (!fm->socket_change_set) { |
sock = NULL; |
spin_unlock_irqrestore(&fm->lock, flags); |
} |
return 0; |
|
} else { |
|
spin_unlock_irqrestore(&fm->lock, flags); | spin_unlock_irqrestore(&fm->lock, flags); |
} | } |
|
if (sock) |
|
tifm_free_device(&sock->dev); |
} | } |
|
spin_lock_irqsave(&fm->lock, flags); |
} | } |
return 0; |
|
|
writel(TIFM_IRQ_FIFOMASK(socket_change_set) |
|
| TIFM_IRQ_CARDMASK(socket_change_set), |
|
fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
|
|
|
writel(TIFM_IRQ_FIFOMASK(socket_change_set) |
|
| TIFM_IRQ_CARDMASK(socket_change_set), |
|
fm->addr + FM_SET_INTERRUPT_ENABLE); |
|
|
|
writel(TIFM_IRQ_ENABLE, fm->addr + FM_SET_INTERRUPT_ENABLE); |
|
spin_unlock_irqrestore(&fm->lock, flags); |
} | } |
| |
#ifdef CONFIG_PM | #ifdef CONFIG_PM |
|
Lines 258-266
static int tifm_7xx1_suspend(struct pci_
|
Link Here
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|---|
|
|---|
static int tifm_7xx1_resume(struct pci_dev *dev) | static int tifm_7xx1_resume(struct pci_dev *dev) |
{ | { |
struct tifm_adapter *fm = pci_get_drvdata(dev); | struct tifm_adapter *fm = pci_get_drvdata(dev); |
int cnt, rc; |
int rc; |
|
unsigned int good_sockets = 0, bad_sockets = 0; |
unsigned long flags; | unsigned long flags; |
tifm_media_id new_ids[fm->num_sockets]; |
unsigned char new_ids[fm->num_sockets]; |
|
DECLARE_COMPLETION_ONSTACK(finish_resume); |
| |
pci_set_power_state(dev, PCI_D0); | pci_set_power_state(dev, PCI_D0); |
pci_restore_state(dev); | pci_restore_state(dev); |
|
Lines 271-315
static int tifm_7xx1_resume(struct pci_d
|
Link Here
|
|---|
|
|---|
| |
dev_dbg(&dev->dev, "resuming host\n"); | dev_dbg(&dev->dev, "resuming host\n"); |
| |
for (cnt = 0; cnt < fm->num_sockets; cnt++) |
for (rc = 0; rc < fm->num_sockets; rc++) |
new_ids[cnt] = tifm_7xx1_toggle_sock_power( |
new_ids[rc] = tifm_7xx1_toggle_sock_power( |
tifm_7xx1_sock_addr(fm->addr, cnt), |
tifm_7xx1_sock_addr(fm->addr, rc), |
fm->num_sockets == 2); |
fm->sockets[rc].caps); |
spin_lock_irqsave(&fm->lock, flags); | spin_lock_irqsave(&fm->lock, flags); |
fm->socket_change_set = 0; |
for (rc = 0; rc < fm->num_sockets; rc++) { |
for (cnt = 0; cnt < fm->num_sockets; cnt++) { |
if (fm->sockets[rc].dev) { |
if (fm->sockets[cnt]) { |
if (fm->sockets[rc].dev->type == new_ids[rc]) |
if (fm->sockets[cnt]->media_id == new_ids[cnt]) |
good_sockets |= 1 << rc; |
fm->socket_change_set |= 1 << cnt; |
else |
|
bad_sockets |= 1 << rc; |
fm->sockets[cnt]->media_id = new_ids[cnt]; |
|
} | } |
} | } |
| |
writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1), | writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1), |
fm->addr + FM_SET_INTERRUPT_ENABLE); | fm->addr + FM_SET_INTERRUPT_ENABLE); |
if (!fm->socket_change_set) { |
dev_dbg(&dev->dev, "change sets on resume: good %x, bad %x\n", |
spin_unlock_irqrestore(&fm->lock, flags); |
good_sockets, bad_sockets); |
return 0; |
|
} else { |
fm->socket_change_set = 0; |
fm->socket_change_set = 0; |
if (good_sockets) { |
|
fm->finish_me = &finish_resume; |
spin_unlock_irqrestore(&fm->lock, flags); | spin_unlock_irqrestore(&fm->lock, flags); |
|
rc = wait_for_completion_timeout(&finish_resume, HZ); |
|
dev_dbg(&dev->dev, "wait returned %d\n", rc); |
|
writel(TIFM_IRQ_FIFOMASK(good_sockets) |
|
| TIFM_IRQ_CARDMASK(good_sockets), |
|
fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
|
writel(TIFM_IRQ_FIFOMASK(good_sockets) |
|
| TIFM_IRQ_CARDMASK(good_sockets), |
|
fm->addr + FM_SET_INTERRUPT_ENABLE); |
|
spin_lock_irqsave(&fm->lock, flags); |
|
fm->finish_me = NULL; |
|
fm->socket_change_set ^= good_sockets & fm->socket_change_set; |
} | } |
| |
wait_event_timeout(fm->change_set_notify, fm->socket_change_set, HZ); |
fm->socket_change_set |= bad_sockets; |
|
if (fm->socket_change_set) |
|
tifm_queue_work(&fm->media_switcher); |
| |
spin_lock_irqsave(&fm->lock, flags); |
spin_unlock_irqrestore(&fm->lock, flags); |
writel(TIFM_IRQ_FIFOMASK(fm->socket_change_set) |
|
| TIFM_IRQ_CARDMASK(fm->socket_change_set), |
|
fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
|
writel(TIFM_IRQ_FIFOMASK(fm->socket_change_set) |
|
| TIFM_IRQ_CARDMASK(fm->socket_change_set), |
|
fm->addr + FM_SET_INTERRUPT_ENABLE); |
|
writel(TIFM_IRQ_ENABLE, | writel(TIFM_IRQ_ENABLE, |
fm->addr + FM_SET_INTERRUPT_ENABLE); | fm->addr + FM_SET_INTERRUPT_ENABLE); |
fm->socket_change_set = 0; |
|
| |
spin_unlock_irqrestore(&fm->lock, flags); |
|
return 0; | return 0; |
} | } |
| |
|
Lines 345-364
static int tifm_7xx1_probe(struct pci_de
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Link Here
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|---|
| |
pci_intx(dev, 1); | pci_intx(dev, 1); |
| |
fm = tifm_alloc_adapter(); |
fm = tifm_alloc_adapter(dev->device == PCI_DEVICE_ID_TI_XX21_XX11_FM |
|
? 4 : 2, &dev->dev); |
if (!fm) { | if (!fm) { |
rc = -ENOMEM; | rc = -ENOMEM; |
goto err_out_int; | goto err_out_int; |
} | } |
| |
fm->dev = &dev->dev; |
switch (fm->num_sockets) { |
fm->num_sockets = (dev->device == PCI_DEVICE_ID_TI_XX21_XX11_FM) |
case 2: |
? 4 : 2; |
fm->sockets[0].caps |= TIFM_SOCK_MS_PIF; |
fm->sockets = kzalloc(sizeof(struct tifm_dev*) * fm->num_sockets, |
break; |
GFP_KERNEL); |
case 4: |
if (!fm->sockets) |
fm->sockets[0].caps |= TIFM_SOCK_XD_CAP; |
goto err_out_free; |
fm->sockets[1].caps |= TIFM_SOCK_XD_CAP; |
|
fm->sockets[2].caps |= TIFM_SOCK_XD_CAP | TIFM_SOCK_MS_PIF; |
|
fm->sockets[3].caps |= TIFM_SOCK_XD_CAP; |
|
break; |
|
} |
| |
|
INIT_WORK(&fm->media_switcher, tifm_7xx1_switch_media); |
fm->eject = tifm_7xx1_eject; | fm->eject = tifm_7xx1_eject; |
pci_set_drvdata(dev, fm); | pci_set_drvdata(dev, fm); |
| |
|
Lines 367-385
static int tifm_7xx1_probe(struct pci_de
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Link Here
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|---|
|
|---|
if (!fm->addr) | if (!fm->addr) |
goto err_out_free; | goto err_out_free; |
| |
rc = request_irq(dev->irq, tifm_7xx1_isr, IRQF_SHARED, DRIVER_NAME, fm); |
rc = request_irq(dev->irq, tifm_7xx1_isr, SA_SHIRQ, DRIVER_NAME, fm); |
if (rc) | if (rc) |
goto err_out_unmap; | goto err_out_unmap; |
| |
init_waitqueue_head(&fm->change_set_notify); |
rc = tifm_add_adapter(fm); |
rc = tifm_add_adapter(fm, tifm_7xx1_switch_media); |
|
if (rc) | if (rc) |
goto err_out_irq; | goto err_out_irq; |
| |
writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
|
writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1), | writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1), |
fm->addr + FM_SET_INTERRUPT_ENABLE); | fm->addr + FM_SET_INTERRUPT_ENABLE); |
wake_up_process(fm->media_switcher); |
|
return 0; | return 0; |
| |
err_out_irq: | err_out_irq: |
|
|
|---|
static void tifm_7xx1_remove(struct pci_dev *dev) | static void tifm_7xx1_remove(struct pci_dev *dev) |
{ | { |
struct tifm_adapter *fm = pci_get_drvdata(dev); | struct tifm_adapter *fm = pci_get_drvdata(dev); |
unsigned long flags; |
|
| |
|
fm->eject = tifm_7xx1_dummy_eject; |
writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE); | writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE); |
mmiowb(); | mmiowb(); |
free_irq(dev->irq, fm); | free_irq(dev->irq, fm); |
| |
spin_lock_irqsave(&fm->lock, flags); |
|
fm->socket_change_set = (1 << fm->num_sockets) - 1; |
|
spin_unlock_irqrestore(&fm->lock, flags); |
|
|
|
kthread_stop(fm->media_switcher); |
|
|
|
tifm_remove_adapter(fm); | tifm_remove_adapter(fm); |
| |
pci_set_drvdata(dev, NULL); | pci_set_drvdata(dev, NULL); |
|
|
|---|
* | * |
*/ | */ |
| |
#include <linux/tifm.h> |
#include "linux/tifm.h" |
#include <linux/init.h> | #include <linux/init.h> |
#include <linux/idr.h> | #include <linux/idr.h> |
| |
#define DRIVER_NAME "tifm_core" | #define DRIVER_NAME "tifm_core" |
#define DRIVER_VERSION "0.7" |
#define DRIVER_VERSION "0.8" |
| |
|
static struct workqueue_struct *workqueue; |
static DEFINE_IDR(tifm_adapter_idr); | static DEFINE_IDR(tifm_adapter_idr); |
static DEFINE_SPINLOCK(tifm_adapter_lock); | static DEFINE_SPINLOCK(tifm_adapter_lock); |
| |
static tifm_media_id *tifm_device_match(tifm_media_id *ids, |
static const char *tifm_media_type_name(unsigned char type, unsigned char nt) |
struct tifm_dev *dev) |
|
{ | { |
while (*ids) { |
const char *card_type_name[3][3] = { |
if (dev->media_id == *ids) |
{ "SmartMedia/xD", "MemoryStick", "MMC/SD" }, |
return ids; |
{ "XD", "MS", "SD"}, |
ids++; |
{ "xd", "ms", "sd"} |
} |
}; |
return NULL; |
|
|
if (nt > 2 || type < 1 || type > 3) |
|
return NULL; |
|
return card_type_name[nt][type - 1]; |
} | } |
| |
static int tifm_match(struct device *dev, struct device_driver *drv) |
static int tifm_dev_match(struct tifm_dev *sock, struct tifm_device_id *id) |
{ | { |
struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev); |
if (sock->type == id->type) |
struct tifm_driver *fm_drv; |
|
|
|
fm_drv = container_of(drv, struct tifm_driver, driver); |
|
if (!fm_drv->id_table) |
|
return -EINVAL; |
|
if (tifm_device_match(fm_drv->id_table, fm_dev)) |
|
return 1; | return 1; |
return -ENODEV; |
return 0; |
|
} |
|
|
|
static int tifm_bus_match(struct device *dev, struct device_driver *drv) |
|
{ |
|
struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev); |
|
struct tifm_driver *fm_drv = container_of(drv, struct tifm_driver, |
|
driver); |
|
struct tifm_device_id *ids = fm_drv->id_table; |
|
|
|
if (ids) { |
|
while (ids->type) { |
|
if (tifm_dev_match(sock, ids)) |
|
return 1; |
|
++ids; |
|
} |
|
} |
|
return 0; |
} | } |
| |
static int tifm_uevent(struct device *dev, char **envp, int num_envp, | static int tifm_uevent(struct device *dev, char **envp, int num_envp, |
char *buffer, int buffer_size) | char *buffer, int buffer_size) |
{ | { |
struct tifm_dev *fm_dev; |
struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev); |
int i = 0; | int i = 0; |
int length = 0; | int length = 0; |
const char *card_type_name[] = {"INV", "SM", "MS", "SD"}; |
|
| |
if (!dev || !(fm_dev = container_of(dev, struct tifm_dev, dev))) |
|
return -ENODEV; |
|
if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, | if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, |
"TIFM_CARD_TYPE=%s", card_type_name[fm_dev->media_id])) |
"TIFM_CARD_TYPE=%s", |
|
tifm_media_type_name(sock->type, 1))) |
return -ENOMEM; | return -ENOMEM; |
| |
return 0; | return 0; |
} | } |
| |
|
static int tifm_device_probe(struct device *dev) |
|
{ |
|
struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev); |
|
struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver, |
|
driver); |
|
int rc = -ENODEV; |
|
|
|
get_device(dev); |
|
if (dev->driver && drv->probe) { |
|
rc = drv->probe(sock); |
|
if (!rc) |
|
return 0; |
|
} |
|
put_device(dev); |
|
return rc; |
|
} |
|
|
|
static void tifm_dummy_event(struct tifm_dev *sock) |
|
{ |
|
return; |
|
} |
|
|
|
static int tifm_device_remove(struct device *dev) |
|
{ |
|
struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev); |
|
struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver, |
|
driver); |
|
|
|
if (dev->driver && drv->remove) { |
|
sock->event = tifm_dummy_event; |
|
sock->data_event = tifm_dummy_event; |
|
drv->remove(sock); |
|
sock->dev.driver = NULL; |
|
} |
|
|
|
put_device(dev); |
|
return 0; |
|
} |
|
|
#ifdef CONFIG_PM | #ifdef CONFIG_PM |
| |
static int tifm_device_suspend(struct device *dev, pm_message_t state) | static int tifm_device_suspend(struct device *dev, pm_message_t state) |
{ | { |
struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev); |
struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev); |
struct tifm_driver *drv = fm_dev->drv; |
struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver, |
|
driver); |
| |
if (drv && drv->suspend) |
if (dev->driver && drv->suspend) |
return drv->suspend(fm_dev, state); |
return drv->suspend(sock, state); |
return 0; | return 0; |
} | } |
| |
static int tifm_device_resume(struct device *dev) | static int tifm_device_resume(struct device *dev) |
{ | { |
struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev); |
struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev); |
struct tifm_driver *drv = fm_dev->drv; |
struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver, |
|
driver); |
| |
if (drv && drv->resume) |
if (dev->driver && drv->resume) |
return drv->resume(fm_dev); |
return drv->resume(sock); |
return 0; | return 0; |
} | } |
| |
|
Lines 89-107
static int tifm_device_resume(struct dev
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Link Here
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#endif /* CONFIG_PM */ | #endif /* CONFIG_PM */ |
| |
|
static ssize_t type_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev); |
|
return sprintf(buf, "%x", sock->type); |
|
} |
|
|
|
static struct device_attribute tifm_dev_attrs[] = { |
|
__ATTR(type, S_IRUGO, type_show, NULL), |
|
__ATTR_NULL |
|
}; |
|
|
static struct bus_type tifm_bus_type = { | static struct bus_type tifm_bus_type = { |
.name = "tifm", |
.name = "tifm", |
.match = tifm_match, |
.dev_attrs = tifm_dev_attrs, |
.uevent = tifm_uevent, |
.match = tifm_bus_match, |
.suspend = tifm_device_suspend, |
.uevent = tifm_uevent, |
.resume = tifm_device_resume |
.probe = tifm_device_probe, |
|
.remove = tifm_device_remove, |
|
.suspend = tifm_device_suspend, |
|
.resume = tifm_device_resume |
}; | }; |
| |
static void tifm_free(struct class_device *cdev) | static void tifm_free(struct class_device *cdev) |
{ | { |
struct tifm_adapter *fm = container_of(cdev, struct tifm_adapter, cdev); | struct tifm_adapter *fm = container_of(cdev, struct tifm_adapter, cdev); |
| |
kfree(fm->sockets); |
|
kfree(fm); | kfree(fm); |
} | } |
| |
|
Lines 110-137
static struct class tifm_adapter_class =
|
Link Here
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|---|
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|---|
.release = tifm_free | .release = tifm_free |
}; | }; |
| |
struct tifm_adapter *tifm_alloc_adapter(void) |
struct tifm_adapter *tifm_alloc_adapter(unsigned int num_sockets, |
|
struct device *dev) |
{ | { |
struct tifm_adapter *fm; | struct tifm_adapter *fm; |
| |
fm = kzalloc(sizeof(struct tifm_adapter), GFP_KERNEL); |
fm = kzalloc(sizeof(struct tifm_adapter) |
|
+ sizeof(struct socket_t) * num_sockets, GFP_KERNEL); |
if (fm) { | if (fm) { |
fm->cdev.class = &tifm_adapter_class; | fm->cdev.class = &tifm_adapter_class; |
spin_lock_init(&fm->lock); |
fm->cdev.dev = dev; |
class_device_initialize(&fm->cdev); | class_device_initialize(&fm->cdev); |
|
spin_lock_init(&fm->lock); |
|
fm->num_sockets = num_sockets; |
} | } |
return fm; | return fm; |
} | } |
EXPORT_SYMBOL(tifm_alloc_adapter); | EXPORT_SYMBOL(tifm_alloc_adapter); |
| |
void tifm_free_adapter(struct tifm_adapter *fm) |
int tifm_add_adapter(struct tifm_adapter *fm) |
{ |
|
class_device_put(&fm->cdev); |
|
} |
|
EXPORT_SYMBOL(tifm_free_adapter); |
|
|
|
int tifm_add_adapter(struct tifm_adapter *fm, |
|
int (*mediathreadfn)(void *data)) |
|
{ | { |
int rc; | int rc; |
| |
|
Lines 141-199
int tifm_add_adapter(struct tifm_adapter
|
Link Here
|
|---|
|
|---|
spin_lock(&tifm_adapter_lock); | spin_lock(&tifm_adapter_lock); |
rc = idr_get_new(&tifm_adapter_idr, fm, &fm->id); | rc = idr_get_new(&tifm_adapter_idr, fm, &fm->id); |
spin_unlock(&tifm_adapter_lock); | spin_unlock(&tifm_adapter_lock); |
if (!rc) { |
if (rc) |
snprintf(fm->cdev.class_id, BUS_ID_SIZE, "tifm%u", fm->id); |
return rc; |
fm->media_switcher = kthread_create(mediathreadfn, |
|
fm, "tifm/%u", fm->id); |
|
|
|
if (!IS_ERR(fm->media_switcher)) |
|
return class_device_add(&fm->cdev); |
|
| |
|
snprintf(fm->cdev.class_id, BUS_ID_SIZE, "tifm%u", fm->id); |
|
rc = class_device_add(&fm->cdev); |
|
if (rc) { |
spin_lock(&tifm_adapter_lock); | spin_lock(&tifm_adapter_lock); |
idr_remove(&tifm_adapter_idr, fm->id); | idr_remove(&tifm_adapter_idr, fm->id); |
spin_unlock(&tifm_adapter_lock); | spin_unlock(&tifm_adapter_lock); |
rc = -ENOMEM; |
return rc; |
} | } |
return rc; |
|
|
return 0; |
} | } |
EXPORT_SYMBOL(tifm_add_adapter); | EXPORT_SYMBOL(tifm_add_adapter); |
| |
void tifm_remove_adapter(struct tifm_adapter *fm) | void tifm_remove_adapter(struct tifm_adapter *fm) |
{ | { |
class_device_del(&fm->cdev); |
unsigned int cnt; |
|
|
|
flush_workqueue(workqueue); |
|
for (cnt = 0; cnt < fm->num_sockets; ++cnt) { |
|
if (fm->sockets[cnt].dev) |
|
device_unregister(&fm->sockets[cnt].dev->dev); |
|
} |
| |
spin_lock(&tifm_adapter_lock); | spin_lock(&tifm_adapter_lock); |
idr_remove(&tifm_adapter_idr, fm->id); | idr_remove(&tifm_adapter_idr, fm->id); |
spin_unlock(&tifm_adapter_lock); | spin_unlock(&tifm_adapter_lock); |
|
class_device_del(&fm->cdev); |
} | } |
EXPORT_SYMBOL(tifm_remove_adapter); | EXPORT_SYMBOL(tifm_remove_adapter); |
| |
void tifm_free_device(struct device *dev) |
void tifm_free_adapter(struct tifm_adapter *fm) |
{ | { |
struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev); |
class_device_put(&fm->cdev); |
kfree(fm_dev); |
|
} | } |
EXPORT_SYMBOL(tifm_free_device); |
EXPORT_SYMBOL(tifm_free_adapter); |
| |
static void tifm_dummy_signal_irq(struct tifm_dev *sock, |
void tifm_free_device(struct device *dev) |
unsigned int sock_irq_status) |
|
{ | { |
return; |
struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev); |
|
kfree(sock); |
} | } |
|
EXPORT_SYMBOL(tifm_free_device); |
| |
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm) |
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id, |
|
unsigned char type) |
{ | { |
struct tifm_dev *dev = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL); |
struct tifm_dev *sock = NULL; |
| |
if (dev) { |
if (!tifm_media_type_name(type, 0)) |
spin_lock_init(&dev->lock); |
return sock; |
| |
dev->dev.parent = fm->dev; |
sock = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL); |
dev->dev.bus = &tifm_bus_type; |
if (sock) { |
dev->dev.release = tifm_free_device; |
spin_lock_init(&sock->lock); |
dev->signal_irq = tifm_dummy_signal_irq; |
sock->type = type; |
|
sock->socket_id = id; |
|
sock->event = tifm_dummy_event; |
|
sock->data_event = tifm_dummy_event; |
|
|
|
sock->dev.parent = fm->cdev.dev; |
|
sock->dev.bus = &tifm_bus_type; |
|
sock->dev.dma_mask = fm->cdev.dev->dma_mask; |
|
sock->dev.release = tifm_free_device; |
|
|
|
snprintf(sock->dev.bus_id, BUS_ID_SIZE, |
|
"tifm_%s%u:%u", tifm_media_type_name(type, 2), |
|
fm->id, id); |
|
printk(KERN_INFO DRIVER_NAME |
|
": %s card detected in socket %u:%u\n", |
|
tifm_media_type_name(type, 0), fm->id, id); |
} | } |
return dev; |
return sock; |
} | } |
EXPORT_SYMBOL(tifm_alloc_device); | EXPORT_SYMBOL(tifm_alloc_device); |
| |
|
Lines 218-271
void tifm_unmap_sg(struct tifm_dev *sock
|
Link Here
|
|---|
|
|---|
} | } |
EXPORT_SYMBOL(tifm_unmap_sg); | EXPORT_SYMBOL(tifm_unmap_sg); |
| |
static int tifm_device_probe(struct device *dev) |
void tifm_queue_work(struct work_struct *work) |
{ | { |
struct tifm_driver *drv; |
queue_work(workqueue, work); |
struct tifm_dev *fm_dev; |
|
int rc = 0; |
|
const tifm_media_id *id; |
|
|
|
drv = container_of(dev->driver, struct tifm_driver, driver); |
|
fm_dev = container_of(dev, struct tifm_dev, dev); |
|
get_device(dev); |
|
if (!fm_dev->drv && drv->probe && drv->id_table) { |
|
rc = -ENODEV; |
|
id = tifm_device_match(drv->id_table, fm_dev); |
|
if (id) |
|
rc = drv->probe(fm_dev); |
|
if (rc >= 0) { |
|
rc = 0; |
|
fm_dev->drv = drv; |
|
} |
|
} |
|
if (rc) |
|
put_device(dev); |
|
return rc; |
|
} |
|
|
|
static int tifm_device_remove(struct device *dev) |
|
{ |
|
struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev); |
|
struct tifm_driver *drv = fm_dev->drv; |
|
|
|
if (drv) { |
|
fm_dev->signal_irq = tifm_dummy_signal_irq; |
|
if (drv->remove) |
|
drv->remove(fm_dev); |
|
fm_dev->drv = NULL; |
|
} |
|
|
|
put_device(dev); |
|
return 0; |
|
} | } |
|
EXPORT_SYMBOL(tifm_queue_work); |
| |
int tifm_register_driver(struct tifm_driver *drv) | int tifm_register_driver(struct tifm_driver *drv) |
{ | { |
drv->driver.bus = &tifm_bus_type; | drv->driver.bus = &tifm_bus_type; |
drv->driver.probe = tifm_device_probe; |
|
drv->driver.remove = tifm_device_remove; |
|
drv->driver.suspend = tifm_device_suspend; |
|
drv->driver.resume = tifm_device_resume; |
|
| |
return driver_register(&drv->driver); | return driver_register(&drv->driver); |
} | } |
|
Lines 279-291
EXPORT_SYMBOL(tifm_unregister_driver);
|
Link Here
|
|---|
|
|---|
| |
static int __init tifm_init(void) | static int __init tifm_init(void) |
{ | { |
int rc = bus_register(&tifm_bus_type); |
int rc; |
| |
if (!rc) { |
workqueue = create_freezeable_workqueue("tifm"); |
rc = class_register(&tifm_adapter_class); |
if (!workqueue) |
if (rc) |
return -ENOMEM; |
bus_unregister(&tifm_bus_type); |
|
} |
rc = bus_register(&tifm_bus_type); |
|
|
|
if (rc) |
|
goto err_out_wq; |
|
|
|
rc = class_register(&tifm_adapter_class); |
|
if (!rc) |
|
return 0; |
|
|
|
bus_unregister(&tifm_bus_type); |
|
|
|
err_out_wq: |
|
destroy_workqueue(workqueue); |
| |
return rc; | return rc; |
} | } |
|
Lines 294-299
static void __exit tifm_exit(void)
|
Link Here
|
|---|
|
|---|
{ | { |
class_unregister(&tifm_adapter_class); | class_unregister(&tifm_adapter_class); |
bus_unregister(&tifm_bus_type); | bus_unregister(&tifm_bus_type); |
|
destroy_workqueue(workqueue); |
} | } |
| |
subsys_initcall(tifm_init); | subsys_initcall(tifm_init); |
|
|
|---|
* it under the terms of the GNU General Public License version 2 as | * it under the terms of the GNU General Public License version 2 as |
* published by the Free Software Foundation. | * published by the Free Software Foundation. |
* | * |
|
* Special thanks to Brad Campbell for extensive testing of this driver. |
|
* |
*/ | */ |
| |
| |
#include <linux/tifm.h> |
#include "linux/tifm.h" |
#include <linux/mmc/protocol.h> | #include <linux/mmc/protocol.h> |
#include <linux/mmc/host.h> | #include <linux/mmc/host.h> |
#include <linux/highmem.h> | #include <linux/highmem.h> |
#include <asm/io.h> | #include <asm/io.h> |
| |
#define DRIVER_NAME "tifm_sd" | #define DRIVER_NAME "tifm_sd" |
#define DRIVER_VERSION "0.7" |
#define DRIVER_VERSION "0.8" |
| |
static int no_dma = 0; | static int no_dma = 0; |
static int fixed_timeout = 0; | static int fixed_timeout = 0; |
|
Lines 36-44
module_param(fixed_timeout, bool, 0644);
|
Link Here
|
|---|
|
|---|
#define TIFM_MMCSD_INAB 0x0080 /* abort / initialize command */ | #define TIFM_MMCSD_INAB 0x0080 /* abort / initialize command */ |
#define TIFM_MMCSD_READ 0x8000 | #define TIFM_MMCSD_READ 0x8000 |
| |
#define TIFM_MMCSD_DATAMASK 0x401d /* set bits: CERR, EOFB, BRS, CB, EOC */ |
|
#define TIFM_MMCSD_ERRMASK 0x01e0 /* set bits: CCRC, CTO, DCRC, DTO */ | #define TIFM_MMCSD_ERRMASK 0x01e0 /* set bits: CCRC, CTO, DCRC, DTO */ |
#define TIFM_MMCSD_EOC 0x0001 /* end of command phase */ | #define TIFM_MMCSD_EOC 0x0001 /* end of command phase */ |
|
#define TIFM_MMCSD_CD 0x0002 /* card detect */ |
#define TIFM_MMCSD_CB 0x0004 /* card enter busy state */ | #define TIFM_MMCSD_CB 0x0004 /* card enter busy state */ |
#define TIFM_MMCSD_BRS 0x0008 /* block received/sent */ | #define TIFM_MMCSD_BRS 0x0008 /* block received/sent */ |
#define TIFM_MMCSD_EOFB 0x0010 /* card exit busy state */ | #define TIFM_MMCSD_EOFB 0x0010 /* card exit busy state */ |
|
Lines 48-55
module_param(fixed_timeout, bool, 0644);
|
Link Here
|
|---|
|
|---|
#define TIFM_MMCSD_CCRC 0x0100 /* command crc error */ | #define TIFM_MMCSD_CCRC 0x0100 /* command crc error */ |
#define TIFM_MMCSD_AF 0x0400 /* fifo almost full */ | #define TIFM_MMCSD_AF 0x0400 /* fifo almost full */ |
#define TIFM_MMCSD_AE 0x0800 /* fifo almost empty */ | #define TIFM_MMCSD_AE 0x0800 /* fifo almost empty */ |
|
#define TIFM_MMCSD_OCRB 0x1000 /* OCR busy */ |
|
#define TIFM_MMCSD_CIRQ 0x2000 /* card irq (cmd40/sdio) */ |
#define TIFM_MMCSD_CERR 0x4000 /* card status error */ | #define TIFM_MMCSD_CERR 0x4000 /* card status error */ |
| |
|
#define TIFM_MMCSD_ODTO 0x0040 /* open drain / extended timeout */ |
|
#define TIFM_MMCSD_CARD_RO 0x0200 /* card is read-only */ |
|
|
#define TIFM_MMCSD_FIFO_SIZE 0x0020 | #define TIFM_MMCSD_FIFO_SIZE 0x0020 |
| |
#define TIFM_MMCSD_RSP_R0 0x0000 | #define TIFM_MMCSD_RSP_R0 0x0000 |
|
Lines 67-163
module_param(fixed_timeout, bool, 0644);
|
Link Here
|
|---|
|
|---|
#define TIFM_MMCSD_CMD_AC 0x2000 | #define TIFM_MMCSD_CMD_AC 0x2000 |
#define TIFM_MMCSD_CMD_ADTC 0x3000 | #define TIFM_MMCSD_CMD_ADTC 0x3000 |
| |
typedef enum { |
#define TIFM_MMCSD_MAX_BLOCK_SIZE 0x0800 |
IDLE = 0, |
|
CMD, /* main command ended */ |
|
BRS, /* block transfer finished */ |
|
SCMD, /* stop command ended */ |
|
CARD, /* card left busy state */ |
|
FIFO, /* FIFO operation completed (uncertain) */ |
|
READY |
|
} card_state_t; |
|
| |
enum { | enum { |
FIFO_RDY = 0x0001, /* hardware dependent value */ |
CMD_READY = 0x0001, |
EJECT = 0x0004, |
FIFO_READY = 0x0002, |
EJECT_DONE = 0x0008, |
BRS_READY = 0x0004, |
CARD_BUSY = 0x0010, |
SCMD_ACTIVE = 0x0008, |
OPENDRAIN = 0x0040, /* hardware dependent value */ |
SCMD_READY = 0x0010, |
CARD_EVENT = 0x0100, /* hardware dependent value */ |
CARD_BUSY = 0x0020, |
CARD_RO = 0x0200, /* hardware dependent value */ |
DATA_CARRY = 0x0040 |
FIFO_EVENT = 0x10000 }; /* hardware dependent value */ |
}; |
| |
struct tifm_sd { | struct tifm_sd { |
struct tifm_dev *dev; |
struct tifm_dev *dev; |
| |
unsigned int flags; |
unsigned short eject:1, |
card_state_t state; |
open_drain:1, |
unsigned int clk_freq; |
no_dma:1; |
unsigned int clk_div; |
unsigned short cmd_flags; |
unsigned long timeout_jiffies; |
|
|
unsigned int clk_freq; |
|
unsigned int clk_div; |
|
unsigned long timeout_jiffies; |
| |
struct tasklet_struct finish_tasklet; | struct tasklet_struct finish_tasklet; |
struct timer_list timer; | struct timer_list timer; |
struct mmc_request *req; | struct mmc_request *req; |
wait_queue_head_t notify; |
|
|
|
size_t written_blocks; |
|
size_t buffer_size; |
|
size_t buffer_pos; |
|
| |
|
int sg_len; |
|
int sg_pos; |
|
unsigned int block_pos; |
|
struct scatterlist bounce_buf; |
|
unsigned char bounce_buf_data[TIFM_MMCSD_MAX_BLOCK_SIZE]; |
}; | }; |
| |
static char* tifm_sd_data_buffer(struct mmc_data *data) |
/* for some reason, host won't respond correctly to readw/writew */ |
|
static void tifm_sd_read_fifo(struct tifm_sd *host, struct page *pg, |
|
unsigned int off, unsigned int cnt) |
{ | { |
return page_address(data->sg->page) + data->sg->offset; |
struct tifm_dev *sock = host->dev; |
|
unsigned char *buf; |
|
unsigned int pos = 0, val; |
|
|
|
buf = kmap_atomic(pg, KM_BIO_DST_IRQ) + off; |
|
if (host->cmd_flags & DATA_CARRY) { |
|
buf[pos++] = host->bounce_buf_data[0]; |
|
host->cmd_flags &= ~DATA_CARRY; |
|
} |
|
|
|
while (pos < cnt) { |
|
val = readl(sock->addr + SOCK_MMCSD_DATA); |
|
buf[pos++] = val & 0xff; |
|
if (pos == cnt) { |
|
host->bounce_buf_data[0] = (val >> 8) & 0xff; |
|
host->cmd_flags |= DATA_CARRY; |
|
break; |
|
} |
|
buf[pos++] = (val >> 8) & 0xff; |
|
} |
|
kunmap_atomic(buf - off, KM_BIO_DST_IRQ); |
} | } |
| |
static int tifm_sd_transfer_data(struct tifm_dev *sock, struct tifm_sd *host, |
static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg, |
unsigned int host_status) |
unsigned int off, unsigned int cnt) |
{ | { |
struct mmc_command *cmd = host->req->cmd; |
struct tifm_dev *sock = host->dev; |
unsigned int t_val = 0, cnt = 0; |
unsigned char *buf; |
char *buffer; |
unsigned int pos = 0, val; |
| |
if (host_status & TIFM_MMCSD_BRS) { |
buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + off; |
/* in non-dma rx mode BRS fires when fifo is still not empty */ |
if (host->cmd_flags & DATA_CARRY) { |
if (no_dma && (cmd->data->flags & MMC_DATA_READ)) { |
val = host->bounce_buf_data[0] | ((buf[pos++] << 8) & 0xff00); |
buffer = tifm_sd_data_buffer(host->req->data); |
writel(val, sock->addr + SOCK_MMCSD_DATA); |
while (host->buffer_size > host->buffer_pos) { |
host->cmd_flags &= ~DATA_CARRY; |
t_val = readl(sock->addr + SOCK_MMCSD_DATA); |
} |
buffer[host->buffer_pos++] = t_val & 0xff; |
|
buffer[host->buffer_pos++] = |
while (pos < cnt) { |
(t_val >> 8) & 0xff; |
val = buf[pos++]; |
} |
if (pos == cnt) { |
|
host->bounce_buf_data[0] = val & 0xff; |
|
host->cmd_flags |= DATA_CARRY; |
|
break; |
} | } |
return 1; |
val |= (buf[pos++] << 8) & 0xff00; |
} else if (no_dma) { |
writel(val, sock->addr + SOCK_MMCSD_DATA); |
buffer = tifm_sd_data_buffer(host->req->data); |
} |
if ((cmd->data->flags & MMC_DATA_READ) && |
kunmap_atomic(buf - off, KM_BIO_SRC_IRQ); |
(host_status & TIFM_MMCSD_AF)) { |
} |
for (cnt = 0; cnt < TIFM_MMCSD_FIFO_SIZE; cnt++) { |
|
t_val = readl(sock->addr + SOCK_MMCSD_DATA); |
static void tifm_sd_transfer_data(struct tifm_sd *host) |
if (host->buffer_size > host->buffer_pos) { |
{ |
buffer[host->buffer_pos++] = |
struct mmc_data *r_data = host->req->cmd->data; |
t_val & 0xff; |
struct scatterlist *sg = r_data->sg; |
buffer[host->buffer_pos++] = |
unsigned int off, cnt, t_size = TIFM_MMCSD_FIFO_SIZE * 2; |
(t_val >> 8) & 0xff; |
unsigned int p_off, p_cnt; |
} |
struct page *pg; |
} |
|
} else if ((cmd->data->flags & MMC_DATA_WRITE) |
if (host->sg_pos == host->sg_len) |
&& (host_status & TIFM_MMCSD_AE)) { |
return; |
for (cnt = 0; cnt < TIFM_MMCSD_FIFO_SIZE; cnt++) { |
while (t_size) { |
if (host->buffer_size > host->buffer_pos) { |
cnt = sg[host->sg_pos].length - host->block_pos; |
t_val = buffer[host->buffer_pos++] |
if (!cnt) { |
& 0x00ff; |
host->block_pos = 0; |
t_val |= ((buffer[host->buffer_pos++]) |
host->sg_pos++; |
<< 8) & 0xff00; |
if (host->sg_pos == host->sg_len) { |
writel(t_val, |
if ((r_data->flags & MMC_DATA_WRITE) |
sock->addr + SOCK_MMCSD_DATA); |
&& DATA_CARRY) |
} |
writel(host->bounce_buf_data[0], |
|
host->dev->addr |
|
+ SOCK_MMCSD_DATA); |
|
|
|
return; |
} | } |
|
cnt = sg[host->sg_pos].length; |
|
} |
|
off = sg[host->sg_pos].offset + host->block_pos; |
|
|
|
pg = nth_page(sg[host->sg_pos].page, off >> PAGE_SHIFT); |
|
p_off = offset_in_page(off); |
|
p_cnt = PAGE_SIZE - p_off; |
|
p_cnt = min(p_cnt, cnt); |
|
p_cnt = min(p_cnt, t_size); |
|
|
|
if (r_data->flags & MMC_DATA_READ) |
|
tifm_sd_read_fifo(host, pg, p_off, p_cnt); |
|
else if (r_data->flags & MMC_DATA_WRITE) |
|
tifm_sd_write_fifo(host, pg, p_off, p_cnt); |
|
|
|
t_size -= p_cnt; |
|
host->block_pos += p_cnt; |
|
} |
|
} |
|
|
|
static void tifm_sd_copy_page(struct page *dst, unsigned int dst_off, |
|
struct page *src, unsigned int src_off, |
|
unsigned int count) |
|
{ |
|
unsigned char *src_buf = kmap_atomic(src, KM_BIO_SRC_IRQ) + src_off; |
|
unsigned char *dst_buf = kmap_atomic(dst, KM_BIO_DST_IRQ) + dst_off; |
|
|
|
memcpy(dst_buf, src_buf, count); |
|
|
|
kunmap_atomic(dst_buf - dst_off, KM_BIO_DST_IRQ); |
|
kunmap_atomic(src_buf - src_off, KM_BIO_SRC_IRQ); |
|
} |
|
|
|
static void tifm_sd_bounce_block(struct tifm_sd *host, struct mmc_data *r_data) |
|
{ |
|
struct scatterlist *sg = r_data->sg; |
|
unsigned int t_size = r_data->blksz; |
|
unsigned int off, cnt; |
|
unsigned int p_off, p_cnt; |
|
struct page *pg; |
|
|
|
dev_dbg(&host->dev->dev, "bouncing block\n"); |
|
while (t_size) { |
|
cnt = sg[host->sg_pos].length - host->block_pos; |
|
if (!cnt) { |
|
host->block_pos = 0; |
|
host->sg_pos++; |
|
if (host->sg_pos == host->sg_len) |
|
return; |
|
cnt = sg[host->sg_pos].length; |
} | } |
|
off = sg[host->sg_pos].offset + host->block_pos; |
|
|
|
pg = nth_page(sg[host->sg_pos].page, off >> PAGE_SHIFT); |
|
p_off = offset_in_page(off); |
|
p_cnt = PAGE_SIZE - p_off; |
|
p_cnt = min(p_cnt, cnt); |
|
p_cnt = min(p_cnt, t_size); |
|
|
|
if (r_data->flags & MMC_DATA_WRITE) |
|
tifm_sd_copy_page(host->bounce_buf.page, |
|
r_data->blksz - t_size, |
|
pg, p_off, p_cnt); |
|
else if (r_data->flags & MMC_DATA_READ) |
|
tifm_sd_copy_page(pg, p_off, host->bounce_buf.page, |
|
r_data->blksz - t_size, p_cnt); |
|
|
|
t_size -= p_cnt; |
|
host->block_pos += p_cnt; |
|
} |
|
} |
|
|
|
int tifm_sd_set_dma_data(struct tifm_sd *host, struct mmc_data *r_data) |
|
{ |
|
struct tifm_dev *sock = host->dev; |
|
unsigned int t_size = TIFM_DMA_TSIZE * r_data->blksz; |
|
unsigned int dma_len, dma_blk_cnt, dma_off; |
|
struct scatterlist *sg = NULL; |
|
unsigned long flags; |
|
|
|
if (host->sg_pos == host->sg_len) |
|
return 1; |
|
|
|
if (host->cmd_flags & DATA_CARRY) { |
|
host->cmd_flags &= ~DATA_CARRY; |
|
local_irq_save(flags); |
|
tifm_sd_bounce_block(host, r_data); |
|
local_irq_restore(flags); |
|
if (host->sg_pos == host->sg_len) |
|
return 1; |
|
} |
|
|
|
while (1) { |
|
dma_len = sg_dma_len(&r_data->sg[host->sg_pos]) |
|
- host->block_pos; |
|
if (dma_len) |
|
break; |
|
host->block_pos = 0; |
|
host->sg_pos++; |
|
if (host->sg_pos == host->sg_len) |
|
return 1; |
|
} |
|
|
|
if (dma_len < t_size) { |
|
dma_blk_cnt = dma_len / r_data->blksz; |
|
dma_off = host->block_pos; |
|
host->block_pos += dma_blk_cnt * r_data->blksz; |
|
} else { |
|
dma_blk_cnt = TIFM_DMA_TSIZE; |
|
dma_off = host->block_pos; |
|
host->block_pos += t_size; |
} | } |
|
|
|
if (dma_blk_cnt) |
|
sg = &r_data->sg[host->sg_pos]; |
|
else if (dma_len) { |
|
if (r_data->flags & MMC_DATA_WRITE) { |
|
local_irq_save(flags); |
|
tifm_sd_bounce_block(host, r_data); |
|
local_irq_restore(flags); |
|
} else |
|
host->cmd_flags |= DATA_CARRY; |
|
|
|
sg = &host->bounce_buf; |
|
dma_off = 0; |
|
dma_blk_cnt = 1; |
|
} else |
|
return 1; |
|
|
|
dev_dbg(&sock->dev, "setting dma for %d blocks\n", dma_blk_cnt); |
|
writel(sg_dma_address(sg) + dma_off, sock->addr + SOCK_DMA_ADDRESS); |
|
if (r_data->flags & MMC_DATA_WRITE) |
|
writel((dma_blk_cnt << 8) | TIFM_DMA_TX | TIFM_DMA_EN, |
|
sock->addr + SOCK_DMA_CONTROL); |
|
else |
|
writel((dma_blk_cnt << 8) | TIFM_DMA_EN, |
|
sock->addr + SOCK_DMA_CONTROL); |
|
|
return 0; | return 0; |
} | } |
| |
|
Lines 207-213
static void tifm_sd_exec(struct tifm_sd
|
Link Here
|
|---|
|
|---|
{ | { |
struct tifm_dev *sock = host->dev; | struct tifm_dev *sock = host->dev; |
unsigned int cmd_mask = tifm_sd_op_flags(cmd) | | unsigned int cmd_mask = tifm_sd_op_flags(cmd) | |
(host->flags & OPENDRAIN); |
(host->open_drain ? TIFM_MMCSD_ODTO : 0); |
| |
if (cmd->data && (cmd->data->flags & MMC_DATA_READ)) | if (cmd->data && (cmd->data->flags & MMC_DATA_READ)) |
cmd_mask |= TIFM_MMCSD_READ; | cmd_mask |= TIFM_MMCSD_READ; |
|
Lines 232-422
static void tifm_sd_fetch_resp(struct mm
|
Link Here
|
|---|
|
|---|
| readl(sock->addr + SOCK_MMCSD_RESPONSE + 0x00); | | readl(sock->addr + SOCK_MMCSD_RESPONSE + 0x00); |
} | } |
| |
static void tifm_sd_process_cmd(struct tifm_dev *sock, struct tifm_sd *host, |
static void tifm_sd_check_status(struct tifm_sd *host) |
unsigned int host_status) |
|
{ | { |
|
struct tifm_dev *sock = host->dev; |
struct mmc_command *cmd = host->req->cmd; | struct mmc_command *cmd = host->req->cmd; |
| |
change_state: |
if (cmd->error != MMC_ERR_NONE) |
switch (host->state) { |
goto finish_request; |
case IDLE: |
|
|
if (!(host->cmd_flags & CMD_READY)) |
return; | return; |
case CMD: |
|
if (host_status & (TIFM_MMCSD_EOC | TIFM_MMCSD_CERR)) { |
if (cmd->data) { |
tifm_sd_fetch_resp(cmd, sock); |
if (cmd->data->error != MMC_ERR_NONE) { |
if (cmd->data) { |
if ((host->cmd_flags & SCMD_ACTIVE) |
host->state = BRS; |
&& !(host->cmd_flags & SCMD_READY)) |
} else { |
return; |
host->state = READY; |
|
} |
goto finish_request; |
goto change_state; |
|
} |
|
break; |
|
case BRS: |
|
if (tifm_sd_transfer_data(sock, host, host_status)) { |
|
if (cmd->data->flags & MMC_DATA_WRITE) { |
|
host->state = CARD; |
|
} else { |
|
if (no_dma) { |
|
if (host->req->stop) { |
|
tifm_sd_exec(host, host->req->stop); |
|
host->state = SCMD; |
|
} else { |
|
host->state = READY; |
|
} |
|
} else { |
|
host->state = FIFO; |
|
} |
|
} |
|
goto change_state; |
|
} |
|
break; |
|
case SCMD: |
|
if (host_status & TIFM_MMCSD_EOC) { |
|
tifm_sd_fetch_resp(host->req->stop, sock); |
|
host->state = READY; |
|
goto change_state; |
|
} | } |
break; |
|
case CARD: |
if (!(host->cmd_flags & BRS_READY)) |
dev_dbg(&sock->dev, "waiting for CARD, have %zd blocks\n", |
return; |
host->written_blocks); |
|
if (!(host->flags & CARD_BUSY) |
if (!(host->no_dma || (host->cmd_flags & FIFO_READY))) |
&& (host->written_blocks == cmd->data->blocks)) { |
return; |
if (no_dma) { |
|
if (host->req->stop) { |
if (cmd->data->flags & MMC_DATA_WRITE) { |
|
if (host->req->stop) { |
|
if (!(host->cmd_flags & SCMD_ACTIVE)) { |
|
host->cmd_flags |= SCMD_ACTIVE; |
|
writel(TIFM_MMCSD_EOFB |
|
| readl(sock->addr |
|
+ SOCK_MMCSD_INT_ENABLE), |
|
sock->addr |
|
+ SOCK_MMCSD_INT_ENABLE); |
tifm_sd_exec(host, host->req->stop); | tifm_sd_exec(host, host->req->stop); |
host->state = SCMD; |
return; |
} else { | } else { |
host->state = READY; |
if (!(host->cmd_flags & SCMD_READY) |
|
|| (host->cmd_flags & CARD_BUSY)) |
|
return; |
|
writel((~TIFM_MMCSD_EOFB) |
|
& readl(sock->addr |
|
+ SOCK_MMCSD_INT_ENABLE), |
|
sock->addr |
|
+ SOCK_MMCSD_INT_ENABLE); |
} | } |
} else { | } else { |
host->state = FIFO; |
if (host->cmd_flags & CARD_BUSY) |
|
return; |
|
writel((~TIFM_MMCSD_EOFB) |
|
& readl(sock->addr |
|
+ SOCK_MMCSD_INT_ENABLE), |
|
sock->addr + SOCK_MMCSD_INT_ENABLE); |
} | } |
goto change_state; |
} else { |
} |
|
break; |
|
case FIFO: |
|
if (host->flags & FIFO_RDY) { |
|
host->flags &= ~FIFO_RDY; |
|
if (host->req->stop) { | if (host->req->stop) { |
tifm_sd_exec(host, host->req->stop); |
if (!(host->cmd_flags & SCMD_ACTIVE)) { |
host->state = SCMD; |
host->cmd_flags |= SCMD_ACTIVE; |
} else { |
tifm_sd_exec(host, host->req->stop); |
host->state = READY; |
return; |
|
} else { |
|
if (!(host->cmd_flags & SCMD_READY)) |
|
return; |
|
} |
} | } |
goto change_state; |
|
} | } |
break; |
|
case READY: |
|
tasklet_schedule(&host->finish_tasklet); |
|
return; |
|
} | } |
|
finish_request: |
|
tasklet_schedule(&host->finish_tasklet); |
} | } |
| |
/* Called from interrupt handler */ | /* Called from interrupt handler */ |
static void tifm_sd_signal_irq(struct tifm_dev *sock, |
static void tifm_sd_data_event(struct tifm_dev *sock) |
unsigned int sock_irq_status) |
|
{ | { |
struct tifm_sd *host; | struct tifm_sd *host; |
unsigned int host_status = 0, fifo_status = 0; |
unsigned int fifo_status = 0; |
int error_code = 0; |
struct mmc_data *r_data = NULL; |
| |
spin_lock(&sock->lock); | spin_lock(&sock->lock); |
host = mmc_priv((struct mmc_host*)tifm_get_drvdata(sock)); | host = mmc_priv((struct mmc_host*)tifm_get_drvdata(sock)); |
|
fifo_status = readl(sock->addr + SOCK_DMA_FIFO_STATUS); |
|
dev_dbg(&sock->dev, "data event: fifo_status %x, flags %x\n", |
|
fifo_status, host->cmd_flags); |
| |
if (sock_irq_status & FIFO_EVENT) { |
if (host->req) { |
fifo_status = readl(sock->addr + SOCK_DMA_FIFO_STATUS); |
r_data = host->req->cmd->data; |
writel(fifo_status, sock->addr + SOCK_DMA_FIFO_STATUS); |
|
| |
host->flags |= fifo_status & FIFO_RDY; |
if (r_data && (fifo_status & TIFM_FIFO_READY)) { |
|
if (tifm_sd_set_dma_data(host, r_data)) { |
|
host->cmd_flags |= FIFO_READY; |
|
tifm_sd_check_status(host); |
|
} |
|
} |
} | } |
| |
if (sock_irq_status & CARD_EVENT) { |
writel(fifo_status, sock->addr + SOCK_DMA_FIFO_STATUS); |
host_status = readl(sock->addr + SOCK_MMCSD_STATUS); |
spin_unlock(&sock->lock); |
writel(host_status, sock->addr + SOCK_MMCSD_STATUS); |
} |
| |
if (!host->req) |
/* Called from interrupt handler */ |
goto done; |
static void tifm_sd_event(struct tifm_dev *sock) |
|
{ |
|
struct tifm_sd *host; |
|
unsigned int host_status = 0; |
|
int cmd_error = MMC_ERR_NONE; |
|
struct mmc_command *cmd = NULL; |
|
unsigned long flags; |
|
|
|
spin_lock(&sock->lock); |
|
host = mmc_priv((struct mmc_host*)tifm_get_drvdata(sock)); |
|
host_status = readl(sock->addr + SOCK_MMCSD_STATUS); |
|
dev_dbg(&sock->dev, "host event: host_status %x, flags %x\n", |
|
host_status, host->cmd_flags); |
|
|
|
if (host->req) { |
|
cmd = host->req->cmd; |
| |
if (host_status & TIFM_MMCSD_ERRMASK) { | if (host_status & TIFM_MMCSD_ERRMASK) { |
if (host_status & (TIFM_MMCSD_CTO | TIFM_MMCSD_DTO)) |
writel(host_status & TIFM_MMCSD_ERRMASK, |
error_code = MMC_ERR_TIMEOUT; |
sock->addr + SOCK_MMCSD_STATUS); |
else if (host_status |
if (host_status & TIFM_MMCSD_CTO) |
& (TIFM_MMCSD_CCRC | TIFM_MMCSD_DCRC)) |
cmd_error = MMC_ERR_TIMEOUT; |
error_code = MMC_ERR_BADCRC; |
else if (host_status & TIFM_MMCSD_CCRC) |
|
cmd_error = MMC_ERR_BADCRC; |
|
|
|
if (cmd->data) { |
|
if (host_status & TIFM_MMCSD_DTO) |
|
cmd->data->error = MMC_ERR_TIMEOUT; |
|
else if (host_status & TIFM_MMCSD_DCRC) |
|
cmd->data->error = MMC_ERR_BADCRC; |
|
} |
| |
writel(TIFM_FIFO_INT_SETALL, | writel(TIFM_FIFO_INT_SETALL, |
sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR); | sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR); |
writel(TIFM_DMA_RESET, sock->addr + SOCK_DMA_CONTROL); | writel(TIFM_DMA_RESET, sock->addr + SOCK_DMA_CONTROL); |
| |
if (host->req->stop) { | if (host->req->stop) { |
if (host->state == SCMD) { |
if (host->cmd_flags & SCMD_ACTIVE) { |
host->req->stop->error = error_code; |
host->req->stop->error = cmd_error; |
} else if (host->state == BRS |
host->cmd_flags |= SCMD_READY; |
|| host->state == CARD |
} else { |
|| host->state == FIFO) { |
cmd->error = cmd_error; |
host->req->cmd->error = error_code; |
host->cmd_flags |= SCMD_ACTIVE; |
tifm_sd_exec(host, host->req->stop); | tifm_sd_exec(host, host->req->stop); |
host->state = SCMD; |
|
goto done; | goto done; |
} else { |
|
host->req->cmd->error = error_code; |
|
} | } |
} else { |
} else |
host->req->cmd->error = error_code; |
cmd->error = cmd_error; |
|
} else { |
|
if (host_status & (TIFM_MMCSD_EOC | TIFM_MMCSD_CERR)) { |
|
if (!(host->cmd_flags & CMD_READY)) { |
|
host->cmd_flags |= CMD_READY; |
|
tifm_sd_fetch_resp(cmd, sock); |
|
} else if (host->cmd_flags & SCMD_ACTIVE) { |
|
host->cmd_flags |= SCMD_READY; |
|
tifm_sd_fetch_resp(host->req->stop, |
|
sock); |
|
} |
} | } |
host->state = READY; |
if (host_status & TIFM_MMCSD_BRS) |
|
host->cmd_flags |= BRS_READY; |
} | } |
| |
if (host_status & TIFM_MMCSD_CB) |
if (host->no_dma && cmd->data) { |
host->flags |= CARD_BUSY; |
if (host_status & TIFM_MMCSD_AE) |
if ((host_status & TIFM_MMCSD_EOFB) |
writel(host_status & TIFM_MMCSD_AE, |
&& (host->flags & CARD_BUSY)) { |
sock->addr + SOCK_MMCSD_STATUS); |
host->written_blocks++; |
|
host->flags &= ~CARD_BUSY; |
if (host_status & (TIFM_MMCSD_AE | TIFM_MMCSD_AF |
|
| TIFM_MMCSD_BRS)) { |
|
local_irq_save(flags); |
|
tifm_sd_transfer_data(host); |
|
local_irq_restore(flags); |
|
host_status &= ~TIFM_MMCSD_AE; |
|
} |
} | } |
} |
|
|
|
if (host->req) |
|
tifm_sd_process_cmd(sock, host, host_status); |
|
done: |
|
dev_dbg(&sock->dev, "host_status %x, fifo_status %x\n", |
|
host_status, fifo_status); |
|
spin_unlock(&sock->lock); |
|
} |
|
|
|
static void tifm_sd_prepare_data(struct tifm_sd *host, struct mmc_command *cmd) |
|
{ |
|
struct tifm_dev *sock = host->dev; |
|
unsigned int dest_cnt; |
|
|
|
/* DMA style IO */ |
|
dev_dbg(&sock->dev, "setting dma for %d blocks\n", |
|
cmd->data->blocks); |
|
writel(TIFM_FIFO_INT_SETALL, |
|
sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR); |
|
writel(ilog2(cmd->data->blksz) - 2, |
|
sock->addr + SOCK_FIFO_PAGE_SIZE); |
|
writel(TIFM_FIFO_ENABLE, sock->addr + SOCK_FIFO_CONTROL); |
|
writel(TIFM_FIFO_INTMASK, sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET); |
|
|
|
dest_cnt = (cmd->data->blocks) << 8; |
|
| |
writel(sg_dma_address(cmd->data->sg), sock->addr + SOCK_DMA_ADDRESS); |
if (host_status & TIFM_MMCSD_EOFB) |
|
host->cmd_flags &= ~CARD_BUSY; |
|
else if (host_status & TIFM_MMCSD_CB) |
|
host->cmd_flags |= CARD_BUSY; |
| |
writel(cmd->data->blocks - 1, sock->addr + SOCK_MMCSD_NUM_BLOCKS); |
tifm_sd_check_status(host); |
writel(cmd->data->blksz - 1, sock->addr + SOCK_MMCSD_BLOCK_LEN); |
|
|
|
if (cmd->data->flags & MMC_DATA_WRITE) { |
|
writel(TIFM_MMCSD_TXDE, sock->addr + SOCK_MMCSD_BUFFER_CONFIG); |
|
writel(dest_cnt | TIFM_DMA_TX | TIFM_DMA_EN, |
|
sock->addr + SOCK_DMA_CONTROL); |
|
} else { |
|
writel(TIFM_MMCSD_RXDE, sock->addr + SOCK_MMCSD_BUFFER_CONFIG); |
|
writel(dest_cnt | TIFM_DMA_EN, sock->addr + SOCK_DMA_CONTROL); |
|
} | } |
|
done: |
|
writel(host_status, sock->addr + SOCK_MMCSD_STATUS); |
|
spin_unlock(&sock->lock); |
} | } |
| |
static void tifm_sd_set_data_timeout(struct tifm_sd *host, | static void tifm_sd_set_data_timeout(struct tifm_sd *host, |
|
Lines 452-597
static void tifm_sd_request(struct mmc_h
|
Link Here
|
|---|
|
|---|
struct tifm_sd *host = mmc_priv(mmc); | struct tifm_sd *host = mmc_priv(mmc); |
struct tifm_dev *sock = host->dev; | struct tifm_dev *sock = host->dev; |
unsigned long flags; | unsigned long flags; |
int sg_count = 0; |
|
struct mmc_data *r_data = mrq->cmd->data; | struct mmc_data *r_data = mrq->cmd->data; |
| |
spin_lock_irqsave(&sock->lock, flags); | spin_lock_irqsave(&sock->lock, flags); |
if (host->flags & EJECT) { |
if (host->eject) { |
spin_unlock_irqrestore(&sock->lock, flags); | spin_unlock_irqrestore(&sock->lock, flags); |
goto err_out; | goto err_out; |
} | } |
| |
if (host->req) { | if (host->req) { |
printk(KERN_ERR DRIVER_NAME ": unfinished request detected\n"); |
printk(KERN_ERR "%s : unfinished request detected\n", |
|
sock->dev.bus_id); |
spin_unlock_irqrestore(&sock->lock, flags); | spin_unlock_irqrestore(&sock->lock, flags); |
goto err_out; | goto err_out; |
} | } |
| |
|
host->cmd_flags = 0; |
|
host->block_pos = 0; |
|
host->sg_pos = 0; |
|
|
if (r_data) { | if (r_data) { |
tifm_sd_set_data_timeout(host, r_data); | tifm_sd_set_data_timeout(host, r_data); |
| |
sg_count = tifm_map_sg(sock, r_data->sg, r_data->sg_len, |
if ((r_data->flags & MMC_DATA_WRITE) && !mrq->stop) |
mrq->cmd->flags & MMC_DATA_WRITE |
writel(TIFM_MMCSD_EOFB |
? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); |
| readl(sock->addr + SOCK_MMCSD_INT_ENABLE), |
if (sg_count != 1) { |
sock->addr + SOCK_MMCSD_INT_ENABLE); |
printk(KERN_ERR DRIVER_NAME |
|
": scatterlist map failed\n"); |
if (host->no_dma) { |
spin_unlock_irqrestore(&sock->lock, flags); |
writel(TIFM_MMCSD_BUFINT |
goto err_out; |
| readl(sock->addr + SOCK_MMCSD_INT_ENABLE), |
} |
sock->addr + SOCK_MMCSD_INT_ENABLE); |
|
writel(((TIFM_MMCSD_FIFO_SIZE - 1) << 8) |
host->written_blocks = 0; |
| (TIFM_MMCSD_FIFO_SIZE - 1), |
host->flags &= ~CARD_BUSY; |
sock->addr + SOCK_MMCSD_BUFFER_CONFIG); |
tifm_sd_prepare_data(host, mrq->cmd); |
|
} |
|
|
|
host->req = mrq; |
|
mod_timer(&host->timer, jiffies + host->timeout_jiffies); |
|
host->state = CMD; |
|
writel(TIFM_CTRL_LED | readl(sock->addr + SOCK_CONTROL), |
|
sock->addr + SOCK_CONTROL); |
|
tifm_sd_exec(host, mrq->cmd); |
|
spin_unlock_irqrestore(&sock->lock, flags); |
|
return; |
|
|
|
err_out: |
|
if (sg_count > 0) |
|
tifm_unmap_sg(sock, r_data->sg, r_data->sg_len, |
|
(r_data->flags & MMC_DATA_WRITE) |
|
? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); |
|
|
|
mrq->cmd->error = MMC_ERR_TIMEOUT; |
|
mmc_request_done(mmc, mrq); |
|
} |
|
|
|
static void tifm_sd_end_cmd(unsigned long data) |
|
{ |
|
struct tifm_sd *host = (struct tifm_sd*)data; |
|
struct tifm_dev *sock = host->dev; |
|
struct mmc_host *mmc = tifm_get_drvdata(sock); |
|
struct mmc_request *mrq; |
|
struct mmc_data *r_data = NULL; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&sock->lock, flags); |
|
|
|
del_timer(&host->timer); |
|
mrq = host->req; |
|
host->req = NULL; |
|
host->state = IDLE; |
|
|
|
if (!mrq) { |
|
printk(KERN_ERR DRIVER_NAME ": no request to complete?\n"); |
|
spin_unlock_irqrestore(&sock->lock, flags); |
|
return; |
|
} |
|
| |
r_data = mrq->cmd->data; |
host->sg_len = r_data->sg_len; |
if (r_data) { |
|
if (r_data->flags & MMC_DATA_WRITE) { |
|
r_data->bytes_xfered = host->written_blocks |
|
* r_data->blksz; |
|
} else { | } else { |
r_data->bytes_xfered = r_data->blocks - |
host->bounce_buf.offset |
readl(sock->addr + SOCK_MMCSD_NUM_BLOCKS) - 1; |
= offset_in_page(host->bounce_buf_data); |
r_data->bytes_xfered *= r_data->blksz; |
host->bounce_buf.length = r_data->blksz; |
r_data->bytes_xfered += r_data->blksz - |
|
readl(sock->addr + SOCK_MMCSD_BLOCK_LEN) + 1; |
if(1 != tifm_map_sg(sock, &host->bounce_buf, 1, |
} |
r_data->flags & MMC_DATA_WRITE |
tifm_unmap_sg(sock, r_data->sg, r_data->sg_len, |
? PCI_DMA_TODEVICE |
(r_data->flags & MMC_DATA_WRITE) |
: PCI_DMA_FROMDEVICE)) { |
? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); |
printk(KERN_ERR "%s : scatterlist map failed\n", |
} |
sock->dev.bus_id); |
|
spin_unlock_irqrestore(&sock->lock, flags); |
writel((~TIFM_CTRL_LED) & readl(sock->addr + SOCK_CONTROL), |
goto err_out; |
sock->addr + SOCK_CONTROL); |
} |
|
host->sg_len = tifm_map_sg(sock, r_data->sg, |
spin_unlock_irqrestore(&sock->lock, flags); |
r_data->sg_len, |
mmc_request_done(mmc, mrq); |
r_data->flags |
} |
& MMC_DATA_WRITE |
|
? PCI_DMA_TODEVICE |
static void tifm_sd_request_nodma(struct mmc_host *mmc, struct mmc_request *mrq) |
: PCI_DMA_FROMDEVICE); |
{ |
if (host->sg_len < 1) { |
struct tifm_sd *host = mmc_priv(mmc); |
printk(KERN_ERR "%s : scatterlist map failed\n", |
struct tifm_dev *sock = host->dev; |
sock->dev.bus_id); |
unsigned long flags; |
tifm_unmap_sg(sock, &host->bounce_buf, 1, |
struct mmc_data *r_data = mrq->cmd->data; |
r_data->flags & MMC_DATA_WRITE |
|
? PCI_DMA_TODEVICE |
spin_lock_irqsave(&sock->lock, flags); |
: PCI_DMA_FROMDEVICE); |
if (host->flags & EJECT) { |
spin_unlock_irqrestore(&sock->lock, flags); |
spin_unlock_irqrestore(&sock->lock, flags); |
goto err_out; |
goto err_out; |
} |
} |
|
|
|
if (host->req) { |
|
printk(KERN_ERR DRIVER_NAME ": unfinished request detected\n"); |
|
spin_unlock_irqrestore(&sock->lock, flags); |
|
goto err_out; |
|
} |
|
| |
if (r_data) { |
writel(TIFM_FIFO_INT_SETALL, |
tifm_sd_set_data_timeout(host, r_data); |
sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR); |
|
writel(ilog2(r_data->blksz) - 2, |
|
sock->addr + SOCK_FIFO_PAGE_SIZE); |
|
writel(TIFM_FIFO_ENABLE, |
|
sock->addr + SOCK_FIFO_CONTROL); |
|
writel(TIFM_FIFO_INTMASK, |
|
sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET); |
|
|
|
if (r_data->flags & MMC_DATA_WRITE) |
|
writel(TIFM_MMCSD_TXDE, |
|
sock->addr + SOCK_MMCSD_BUFFER_CONFIG); |
|
else |
|
writel(TIFM_MMCSD_RXDE, |
|
sock->addr + SOCK_MMCSD_BUFFER_CONFIG); |
| |
host->buffer_size = mrq->cmd->data->blocks |
tifm_sd_set_dma_data(host, r_data); |
* mrq->cmd->data->blksz; |
} |
| |
writel(TIFM_MMCSD_BUFINT |
writel(r_data->blocks - 1, |
| readl(sock->addr + SOCK_MMCSD_INT_ENABLE), |
sock->addr + SOCK_MMCSD_NUM_BLOCKS); |
sock->addr + SOCK_MMCSD_INT_ENABLE); |
writel(r_data->blksz - 1, |
writel(((TIFM_MMCSD_FIFO_SIZE - 1) << 8) |
sock->addr + SOCK_MMCSD_BLOCK_LEN); |
| (TIFM_MMCSD_FIFO_SIZE - 1), |
|
sock->addr + SOCK_MMCSD_BUFFER_CONFIG); |
|
|
|
host->written_blocks = 0; |
|
host->flags &= ~CARD_BUSY; |
|
host->buffer_pos = 0; |
|
writel(r_data->blocks - 1, sock->addr + SOCK_MMCSD_NUM_BLOCKS); |
|
writel(r_data->blksz - 1, sock->addr + SOCK_MMCSD_BLOCK_LEN); |
|
} | } |
| |
host->req = mrq; | host->req = mrq; |
mod_timer(&host->timer, jiffies + host->timeout_jiffies); | mod_timer(&host->timer, jiffies + host->timeout_jiffies); |
host->state = CMD; |
|
writel(TIFM_CTRL_LED | readl(sock->addr + SOCK_CONTROL), | writel(TIFM_CTRL_LED | readl(sock->addr + SOCK_CONTROL), |
sock->addr + SOCK_CONTROL); | sock->addr + SOCK_CONTROL); |
tifm_sd_exec(host, mrq->cmd); | tifm_sd_exec(host, mrq->cmd); |
|
|
|---|
mmc_request_done(mmc, mrq); | mmc_request_done(mmc, mrq); |
} | } |
| |
static void tifm_sd_end_cmd_nodma(unsigned long data) |
static void tifm_sd_end_cmd(unsigned long data) |
{ | { |
struct tifm_sd *host = (struct tifm_sd*)data; | struct tifm_sd *host = (struct tifm_sd*)data; |
struct tifm_dev *sock = host->dev; | struct tifm_dev *sock = host->dev; |
|
Lines 617-684
static void tifm_sd_end_cmd_nodma(unsign
|
Link Here
|
|---|
|
|---|
del_timer(&host->timer); | del_timer(&host->timer); |
mrq = host->req; | mrq = host->req; |
host->req = NULL; | host->req = NULL; |
host->state = IDLE; |
|
| |
if (!mrq) { | if (!mrq) { |
printk(KERN_ERR DRIVER_NAME ": no request to complete?\n"); |
printk(KERN_ERR " %s : no request to complete?\n", |
|
sock->dev.bus_id); |
spin_unlock_irqrestore(&sock->lock, flags); | spin_unlock_irqrestore(&sock->lock, flags); |
return; | return; |
} | } |
| |
r_data = mrq->cmd->data; | r_data = mrq->cmd->data; |
if (r_data) { | if (r_data) { |
writel((~TIFM_MMCSD_BUFINT) & |
if (host->no_dma) { |
readl(sock->addr + SOCK_MMCSD_INT_ENABLE), |
writel((~TIFM_MMCSD_BUFINT) |
sock->addr + SOCK_MMCSD_INT_ENABLE); |
& readl(sock->addr + SOCK_MMCSD_INT_ENABLE), |
|
sock->addr + SOCK_MMCSD_INT_ENABLE); |
if (r_data->flags & MMC_DATA_WRITE) { |
|
r_data->bytes_xfered = host->written_blocks |
|
* r_data->blksz; |
|
} else { | } else { |
r_data->bytes_xfered = r_data->blocks - |
tifm_unmap_sg(sock, &host->bounce_buf, 1, |
readl(sock->addr + SOCK_MMCSD_NUM_BLOCKS) - 1; |
(r_data->flags & MMC_DATA_WRITE) |
r_data->bytes_xfered *= r_data->blksz; |
? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); |
r_data->bytes_xfered += r_data->blksz - |
tifm_unmap_sg(sock, r_data->sg, r_data->sg_len, |
readl(sock->addr + SOCK_MMCSD_BLOCK_LEN) + 1; |
(r_data->flags & MMC_DATA_WRITE) |
|
? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); |
} | } |
host->buffer_pos = 0; |
|
host->buffer_size = 0; |
r_data->bytes_xfered = r_data->blocks |
|
- readl(sock->addr + SOCK_MMCSD_NUM_BLOCKS) - 1; |
|
r_data->bytes_xfered *= r_data->blksz; |
|
r_data->bytes_xfered += r_data->blksz |
|
- readl(sock->addr + SOCK_MMCSD_BLOCK_LEN) + 1; |
} | } |
| |
writel((~TIFM_CTRL_LED) & readl(sock->addr + SOCK_CONTROL), | writel((~TIFM_CTRL_LED) & readl(sock->addr + SOCK_CONTROL), |
sock->addr + SOCK_CONTROL); | sock->addr + SOCK_CONTROL); |
| |
spin_unlock_irqrestore(&sock->lock, flags); | spin_unlock_irqrestore(&sock->lock, flags); |
|
|
mmc_request_done(mmc, mrq); | mmc_request_done(mmc, mrq); |
} | } |
| |
static void tifm_sd_terminate(struct tifm_sd *host) |
|
{ |
|
struct tifm_dev *sock = host->dev; |
|
unsigned long flags; |
|
|
|
writel(0, sock->addr + SOCK_MMCSD_INT_ENABLE); |
|
mmiowb(); |
|
spin_lock_irqsave(&sock->lock, flags); |
|
host->flags |= EJECT; |
|
if (host->req) { |
|
writel(TIFM_FIFO_INT_SETALL, |
|
sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR); |
|
writel(0, sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET); |
|
tasklet_schedule(&host->finish_tasklet); |
|
} |
|
spin_unlock_irqrestore(&sock->lock, flags); |
|
} |
|
|
|
static void tifm_sd_abort(unsigned long data) | static void tifm_sd_abort(unsigned long data) |
{ | { |
struct tifm_sd *host = (struct tifm_sd*)data; | struct tifm_sd *host = (struct tifm_sd*)data; |
| |
printk(KERN_ERR DRIVER_NAME |
printk(KERN_ERR |
": card failed to respond for a long period of time"); |
"%s : card failed to respond for a long period of time " |
|
"(%x, %x)\n", |
|
host->dev->dev.bus_id, host->req->cmd->opcode, host->cmd_flags); |
| |
tifm_sd_terminate(host); |
|
tifm_eject(host->dev); | tifm_eject(host->dev); |
} | } |
| |
|
Lines 691-698
static void tifm_sd_ios(struct mmc_host
|
Link Here
|
|---|
|
|---|
| |
spin_lock_irqsave(&sock->lock, flags); | spin_lock_irqsave(&sock->lock, flags); |
| |
dev_dbg(&sock->dev, "Setting bus width %d, power %d\n", ios->bus_width, |
dev_dbg(&sock->dev, "ios: clock = %u, vdd = %x, bus_mode = %x, " |
ios->power_mode); |
"chip_select = %x, power_mode = %x, bus_width = %x\n", |
|
ios->clock, ios->vdd, ios->bus_mode, ios->chip_select, |
|
ios->power_mode, ios->bus_width); |
|
|
if (ios->bus_width == MMC_BUS_WIDTH_4) { | if (ios->bus_width == MMC_BUS_WIDTH_4) { |
writel(TIFM_MMCSD_4BBUS | readl(sock->addr + SOCK_MMCSD_CONFIG), | writel(TIFM_MMCSD_4BBUS | readl(sock->addr + SOCK_MMCSD_CONFIG), |
sock->addr + SOCK_MMCSD_CONFIG); | sock->addr + SOCK_MMCSD_CONFIG); |
|
Lines 737-777
static void tifm_sd_ios(struct mmc_host
|
Link Here
|
|---|
|
|---|
& readl(sock->addr + SOCK_MMCSD_CONFIG)), | & readl(sock->addr + SOCK_MMCSD_CONFIG)), |
sock->addr + SOCK_MMCSD_CONFIG); | sock->addr + SOCK_MMCSD_CONFIG); |
| |
if (ios->bus_mode == MMC_BUSMODE_OPENDRAIN) |
host->open_drain = (ios->bus_mode == MMC_BUSMODE_OPENDRAIN); |
host->flags |= OPENDRAIN; |
|
else |
|
host->flags &= ~OPENDRAIN; |
|
| |
/* chip_select : maybe later */ | /* chip_select : maybe later */ |
//vdd | //vdd |
//power is set before probe / after remove | //power is set before probe / after remove |
//I believe, power_off when already marked for eject is sufficient to |
|
// allow removal. |
|
if ((host->flags & EJECT) && ios->power_mode == MMC_POWER_OFF) { |
|
host->flags |= EJECT_DONE; |
|
wake_up_all(&host->notify); |
|
} |
|
| |
spin_unlock_irqrestore(&sock->lock, flags); | spin_unlock_irqrestore(&sock->lock, flags); |
} | } |
| |
static int tifm_sd_ro(struct mmc_host *mmc) | static int tifm_sd_ro(struct mmc_host *mmc) |
{ | { |
int rc; |
int rc = 0; |
struct tifm_sd *host = mmc_priv(mmc); | struct tifm_sd *host = mmc_priv(mmc); |
struct tifm_dev *sock = host->dev; | struct tifm_dev *sock = host->dev; |
unsigned long flags; | unsigned long flags; |
| |
spin_lock_irqsave(&sock->lock, flags); | spin_lock_irqsave(&sock->lock, flags); |
|
if (TIFM_MMCSD_CARD_RO & readl(sock->addr + SOCK_PRESENT_STATE)) |
host->flags |= (CARD_RO & readl(sock->addr + SOCK_PRESENT_STATE)); |
rc = 1; |
rc = (host->flags & CARD_RO) ? 1 : 0; |
|
|
|
spin_unlock_irqrestore(&sock->lock, flags); | spin_unlock_irqrestore(&sock->lock, flags); |
return rc; | return rc; |
} | } |
| |
static struct mmc_host_ops tifm_sd_ops = { |
static const struct mmc_host_ops tifm_sd_ops = { |
.request = tifm_sd_request, | .request = tifm_sd_request, |
.set_ios = tifm_sd_ios, | .set_ios = tifm_sd_ios, |
.get_ro = tifm_sd_ro | .get_ro = tifm_sd_ro |
|
Lines 792-798
static int tifm_sd_initialize_host(struc
|
Link Here
|
|---|
|
|---|
sock->addr + SOCK_MMCSD_CONFIG); | sock->addr + SOCK_MMCSD_CONFIG); |
| |
/* wait up to 0.51 sec for reset */ | /* wait up to 0.51 sec for reset */ |
for (rc = 2; rc <= 256; rc <<= 1) { |
for (rc = 32; rc <= 256; rc <<= 1) { |
if (1 & readl(sock->addr + SOCK_MMCSD_SYSTEM_STATUS)) { | if (1 & readl(sock->addr + SOCK_MMCSD_SYSTEM_STATUS)) { |
rc = 0; | rc = 0; |
break; | break; |
|
Lines 801-808
static int tifm_sd_initialize_host(struc
|
Link Here
|
|---|
|
|---|
} | } |
| |
if (rc) { | if (rc) { |
printk(KERN_ERR DRIVER_NAME |
printk(KERN_ERR "%s : controller failed to reset\n", |
": controller failed to reset\n"); |
sock->dev.bus_id); |
return -ENODEV; | return -ENODEV; |
} | } |
| |
|
Lines 815-822
static int tifm_sd_initialize_host(struc
|
Link Here
|
|---|
|
|---|
writel(64, sock->addr + SOCK_MMCSD_COMMAND_TO); | writel(64, sock->addr + SOCK_MMCSD_COMMAND_TO); |
writel(TIFM_MMCSD_INAB, sock->addr + SOCK_MMCSD_COMMAND); | writel(TIFM_MMCSD_INAB, sock->addr + SOCK_MMCSD_COMMAND); |
| |
/* INAB should take much less than reset */ |
for (rc = 16; rc <= 64; rc <<= 1) { |
for (rc = 1; rc <= 16; rc <<= 1) { |
|
host_status = readl(sock->addr + SOCK_MMCSD_STATUS); | host_status = readl(sock->addr + SOCK_MMCSD_STATUS); |
writel(host_status, sock->addr + SOCK_MMCSD_STATUS); | writel(host_status, sock->addr + SOCK_MMCSD_STATUS); |
if (!(host_status & TIFM_MMCSD_ERRMASK) | if (!(host_status & TIFM_MMCSD_ERRMASK) |
|
Lines 828-839
static int tifm_sd_initialize_host(struc
|
Link Here
|
|---|
|
|---|
} | } |
| |
if (rc) { | if (rc) { |
printk(KERN_ERR DRIVER_NAME |
printk(KERN_ERR |
": card not ready - probe failed on initialization\n"); |
"%s : card not ready - probe failed on initialization\n", |
|
sock->dev.bus_id); |
return -ENODEV; | return -ENODEV; |
} | } |
| |
writel(TIFM_MMCSD_DATAMASK | TIFM_MMCSD_ERRMASK, |
writel(TIFM_MMCSD_CERR | TIFM_MMCSD_BRS | TIFM_MMCSD_EOC |
|
| TIFM_MMCSD_ERRMASK, |
sock->addr + SOCK_MMCSD_INT_ENABLE); | sock->addr + SOCK_MMCSD_INT_ENABLE); |
mmiowb(); | mmiowb(); |
| |
|
Lines 848-854
static int tifm_sd_probe(struct tifm_dev
|
Link Here
|
|---|
|
|---|
| |
if (!(TIFM_SOCK_STATE_OCCUPIED | if (!(TIFM_SOCK_STATE_OCCUPIED |
& readl(sock->addr + SOCK_PRESENT_STATE))) { | & readl(sock->addr + SOCK_PRESENT_STATE))) { |
printk(KERN_WARNING DRIVER_NAME ": card gone, unexpectedly\n"); |
printk(KERN_WARNING "%s : card gone, unexpectedly\n", |
|
sock->dev.bus_id); |
return rc; | return rc; |
} | } |
| |
|
Lines 857-897
static int tifm_sd_probe(struct tifm_dev
|
Link Here
|
|---|
|
|---|
return -ENOMEM; | return -ENOMEM; |
| |
host = mmc_priv(mmc); | host = mmc_priv(mmc); |
|
host->no_dma = no_dma; |
tifm_set_drvdata(sock, mmc); | tifm_set_drvdata(sock, mmc); |
host->dev = sock; | host->dev = sock; |
host->timeout_jiffies = msecs_to_jiffies(1000); | host->timeout_jiffies = msecs_to_jiffies(1000); |
| |
init_waitqueue_head(&host->notify); |
host->bounce_buf.page = virt_to_page(host->bounce_buf_data); |
tasklet_init(&host->finish_tasklet, |
|
no_dma ? tifm_sd_end_cmd_nodma : tifm_sd_end_cmd, |
tasklet_init(&host->finish_tasklet, tifm_sd_end_cmd, |
(unsigned long)host); | (unsigned long)host); |
setup_timer(&host->timer, tifm_sd_abort, (unsigned long)host); | setup_timer(&host->timer, tifm_sd_abort, (unsigned long)host); |
| |
tifm_sd_ops.request = no_dma ? tifm_sd_request_nodma : tifm_sd_request; |
|
mmc->ops = &tifm_sd_ops; | mmc->ops = &tifm_sd_ops; |
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; | mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; |
mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE; | mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE; |
mmc->f_min = 20000000 / 60; | mmc->f_min = 20000000 / 60; |
mmc->f_max = 24000000; | mmc->f_max = 24000000; |
mmc->max_hw_segs = 1; |
|
mmc->max_phys_segs = 1; |
// mmc->max_blk_count = 2048; |
// limited by DMA counter - it's safer to stick with |
// mmc->max_hw_segs = mmc->max_blk_count; |
// block counter has 11 bits though |
mmc->max_hw_segs = 16; |
mmc->max_blk_count = 256; |
// mmc->max_blk_size = min(2048, PAGE_SIZE); |
// 2k maximum hw block length |
// mmc->max_seg_size = mmc->max_blk_count * mmc->max_blk_size; |
mmc->max_blk_size = 2048; |
mmc->max_seg_size = 127 * 2048; |
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count; |
|
mmc->max_seg_size = mmc->max_req_size; |
mmc->max_phys_segs = mmc->max_hw_segs; |
sock->signal_irq = tifm_sd_signal_irq; |
mmc->max_sectors = 127 * mmc->max_phys_segs; |
|
|
|
// mmc->max_req_size = mmc->max_seg_size; |
|
|
|
sock->event = tifm_sd_event; |
|
sock->data_event = tifm_sd_data_event; |
rc = tifm_sd_initialize_host(host); | rc = tifm_sd_initialize_host(host); |
| |
if (!rc) | if (!rc) |
rc = mmc_add_host(mmc); | rc = mmc_add_host(mmc); |
if (rc) |
if (!rc) |
goto out_free_mmc; |
return 0; |
| |
return 0; |
|
out_free_mmc: |
|
mmc_free_host(mmc); | mmc_free_host(mmc); |
return rc; | return rc; |
} | } |
|
Lines 900-918
static void tifm_sd_remove(struct tifm_d
|
Link Here
|
|---|
|
|---|
{ | { |
struct mmc_host *mmc = tifm_get_drvdata(sock); | struct mmc_host *mmc = tifm_get_drvdata(sock); |
struct tifm_sd *host = mmc_priv(mmc); | struct tifm_sd *host = mmc_priv(mmc); |
|
unsigned long flags; |
| |
del_timer_sync(&host->timer); |
|
tifm_sd_terminate(host); |
|
wait_event_timeout(host->notify, host->flags & EJECT_DONE, |
|
host->timeout_jiffies); |
|
tasklet_kill(&host->finish_tasklet); | tasklet_kill(&host->finish_tasklet); |
|
spin_lock_irqsave(&sock->lock, flags); |
|
host->eject = 1; |
|
writel(0, sock->addr + SOCK_MMCSD_INT_ENABLE); |
|
mmiowb(); |
|
|
|
if (host->req) { |
|
writel(TIFM_FIFO_INT_SETALL, |
|
sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR); |
|
writel(0, sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET); |
|
host->req->cmd->error = MMC_ERR_TIMEOUT; |
|
if (host->req->stop) |
|
host->req->stop->error = MMC_ERR_TIMEOUT; |
|
tasklet_schedule(&host->finish_tasklet); |
|
} |
|
spin_unlock_irqrestore(&sock->lock, flags); |
|
// temporary hack |
|
msleep(1000); |
mmc_remove_host(mmc); | mmc_remove_host(mmc); |
|
dev_dbg(&sock->dev, "after remove\n"); |
| |
/* The meaning of the bit majority in this constant is unknown. */ | /* The meaning of the bit majority in this constant is unknown. */ |
writel(0xfff8 & readl(sock->addr + SOCK_CONTROL), | writel(0xfff8 & readl(sock->addr + SOCK_CONTROL), |
sock->addr + SOCK_CONTROL); | sock->addr + SOCK_CONTROL); |
| |
tifm_set_drvdata(sock, NULL); |
|
mmc_free_host(mmc); | mmc_free_host(mmc); |
} | } |
| |
|
Lines 934-947
static int tifm_sd_resume(struct tifm_de
|
Link Here
|
|---|
|
|---|
{ | { |
struct mmc_host *mmc = tifm_get_drvdata(sock); | struct mmc_host *mmc = tifm_get_drvdata(sock); |
struct tifm_sd *host = mmc_priv(mmc); | struct tifm_sd *host = mmc_priv(mmc); |
|
int rc; |
| |
if (sock->media_id != FM_SD |
rc = tifm_sd_initialize_host(host); |
|| tifm_sd_initialize_host(host)) { |
dev_dbg(&sock->dev, "resume initialize %d\n", rc); |
tifm_eject(sock); |
|
return 0; |
if (rc) |
} else { |
host->eject = 1; |
return mmc_resume_host(mmc); |
else |
} |
rc = mmc_resume_host(mmc); |
|
|
|
return rc; |
} | } |
| |
#else | #else |
|
Lines 951-958
static int tifm_sd_resume(struct tifm_de
|
Link Here
|
|---|
|
|---|
| |
#endif /* CONFIG_PM */ | #endif /* CONFIG_PM */ |
| |
static tifm_media_id tifm_sd_id_tbl[] = { |
static struct tifm_device_id tifm_sd_id_tbl[] = { |
FM_SD, 0 |
{ TIFM_TYPE_SD }, { } |
}; | }; |
| |
static struct tifm_driver tifm_sd_driver = { | static struct tifm_driver tifm_sd_driver = { |
