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Code

forward port diag changes from whiterussian, add extra abstraction for the gpio stuff

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5478 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2006-11-09 07:35:27 +00:00
parent 739f869ca4
commit 2c4d27ff3b
3 changed files with 417 additions and 330 deletions
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544
package/broadcom-diag/src/diag.c
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@ -18,7 +18,7 @@
* along with this program; if not, write to the Free Software * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* *
* $Id$ * $Id:$
*/ */
#include <linux/module.h> #include <linux/module.h>
#include <linux/pci.h> #include <linux/pci.h>
@ -37,79 +37,15 @@
#define INIT_WORK INIT_TQUEUE #define INIT_WORK INIT_TQUEUE
#define schedule_work schedule_task #define schedule_work schedule_task
#define work_struct tq_struct #define work_struct tq_struct
#define sbh bcm947xx_sbh
#define sbh_lock bcm947xx_sbh_lock
#endif #endif
#include <typedefs.h> #include "gpio.h"
#include <osl.h> #include "diag.h"
#include <bcmdevs.h> #define getvar(str) (nvram_get(str)?:"")
#include <sbutils.h>
#include <sbconfig.h>
#include <sbchipc.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
#include <sbmips.h>
#else
#include <hndcpu.h>
#endif
#define MODULE_NAME "diag"
#define MAX_GPIO 8
#define FLASH_TIME HZ/6
#define EXTIF_ADDR 0x1f000000
#define EXTIF_UART (EXTIF_ADDR + 0x00800000)
/* For LEDs */
#define GPIO_TYPE_NORMAL (0x0 << 24)
#define GPIO_TYPE_EXTIF (0x1 << 24)
#define GPIO_TYPE_MASK (0xf << 24)
static unsigned int gpiomask = 0; static unsigned int gpiomask = 0;
module_param(gpiomask, int, 0644); module_param(gpiomask, int, 0644);
enum polarity_t {
REVERSE = 0,
NORMAL = 1,
};
enum {
PROC_BUTTON,
PROC_LED,
PROC_MODEL,
PROC_GPIOMASK
};
struct prochandler_t {
int type;
void *ptr;
};
struct button_t {
struct prochandler_t proc;
char *name;
u16 gpio;
u8 polarity;
u8 pressed;
unsigned long seen;
};
struct led_t {
struct prochandler_t proc;
char *name;
u32 gpio;
u8 polarity;
u8 flash;
u8 state;
};
struct platform_t {
char *name;
struct button_t buttons[MAX_GPIO];
struct led_t leds[MAX_GPIO];
};
enum { enum {
/* Linksys */ /* Linksys */
WAP54GV1, WAP54GV1,
@ -149,13 +85,13 @@ enum {
/* Motorola */ /* Motorola */
WE800G, WE800G,
WR850GV1, WR850GV1,
WR850GV2, WR850GV2V3,
/* Belkin */ /* Belkin */
BELKIN_UNKNOWN, BELKIN_UNKNOWN,
}; };
static struct platform_t platforms[] = { static struct platform_t __initdata platforms[] = {
/* Linksys */ /* Linksys */
[WAP54GV1] = { [WAP54GV1] = {
.name = "Linksys WAP54G V1", .name = "Linksys WAP54G V1",
@ -190,7 +126,7 @@ static struct platform_t platforms[] = {
}, },
}, },
[WRT54G] = { [WRT54G] = {
.name = "Linksys WRT54G*", .name = "Linksys WRT54G/GS/GL",
.buttons = { .buttons = {
{ .name = "reset", .gpio = 1 << 6 }, { .name = "reset", .gpio = 1 << 6 },
{ .name = "ses", .gpio = 1 << 4 }, { .name = "ses", .gpio = 1 << 4 },
@ -291,12 +227,14 @@ static struct platform_t platforms[] = {
.name = "Buffalo WHR-G54S", .name = "Buffalo WHR-G54S",
.buttons = { .buttons = {
{ .name = "reset", .gpio = 1 << 4 }, { .name = "reset", .gpio = 1 << 4 },
{ .name = "bridge", .gpio = 1 << 5 },
{ .name = "ses", .gpio = 1 << 0 }, { .name = "ses", .gpio = 1 << 0 },
}, },
.leds = { .leds = {
{ .name = "diag", .gpio = 1 << 1, .polarity = REVERSE }, { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
{ .name = "internal", .gpio = 1 << 3, .polarity = REVERSE }, { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
{ .name = "ses", .gpio = 1 << 6, .polarity = REVERSE }, { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
{ .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
}, },
}, },
[WBR2_G54] = { [WBR2_G54] = {
@ -422,21 +360,21 @@ static struct platform_t platforms[] = {
.leds = { .leds = {
{ .name = "power", .gpio = 1 << 4, .polarity = NORMAL }, { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
{ .name = "diag", .gpio = 1 << 3, .polarity = REVERSE }, { .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
{ .name = "modem", .gpio = 1 << 6, .polarity = NORMAL }, { .name = "dmz", .gpio = 1 << 6, .polarity = NORMAL },
{ .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE }, { .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
{ .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE }, { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
}, },
}, },
[WR850GV2] = { [WR850GV2V3] = {
.name = "Motorola WR850G V2", .name = "Motorola WR850G V2/V3",
.buttons = { .buttons = {
{ .name = "reset", .gpio = 1 << 5 }, { .name = "reset", .gpio = 1 << 5 },
}, },
.leds = { .leds = {
{ .name = "diag", .gpio = 1 << 1, .polarity = REVERSE }, { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
{ .name = "wlan", .gpio = 1 << 0, .polarity = NORMAL }, { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
{ .name = "modem_green",.gpio = 1 << 6, .polarity = REVERSE }, { .name = "dmz", .gpio = 1 << 6, .polarity = REVERSE },
{ .name = "modem_red", .gpio = 1 << 7, .polarity = REVERSE }, { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
}, },
}, },
/* Belkin */ /* Belkin */
@ -454,25 +392,6 @@ static struct platform_t platforms[] = {
}, },
}; };
extern void *sbh;
extern spinlock_t sbh_lock;
extern char *nvram_get(char *str);
static struct proc_dir_entry *diag, *leds;
static struct platform_t platform;
static void led_flash(unsigned long dummy);
#define getvar(str) (nvram_get(str)?:"")
static void set_led_extif(struct led_t *led)
{
volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (led->gpio & ~GPIO_TYPE_MASK);
if (led->state)
*addr = 0xFF;
else
*addr;
}
static struct platform_t __init *platform_detect(void) static struct platform_t __init *platform_detect(void)
{ {
char *boardnum, *boardtype, *buf; char *boardnum, *boardtype, *buf;
@ -505,7 +424,7 @@ static struct platform_t __init *platform_detect(void)
if (!strncmp(boardtype, "bcm94710dev", 11)) { if (!strncmp(boardtype, "bcm94710dev", 11)) {
if (!strcmp(boardnum, "42")) if (!strcmp(boardnum, "42"))
return &platforms[WRT54GV1]; return &platforms[WRT54GV1];
if (simple_strtoul(boardnum, NULL, 9) == 2) if (simple_strtoul(boardnum, NULL, 0) == 2)
return &platforms[WAP54GV1]; return &platforms[WAP54GV1];
} }
if (!strncmp(getvar("hardware_version"), "WL500-", 6)) if (!strncmp(getvar("hardware_version"), "WL500-", 6))
@ -513,10 +432,10 @@ static struct platform_t __init *platform_detect(void)
if (!strncmp(getvar("hardware_version"), "WL300-", 6)) { if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
/* Either WL-300g or WL-HDD, do more extensive checks */ /* Either WL-300g or WL-HDD, do more extensive checks */
if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) && if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
(simple_strtoul(getvar("et1phyaddr"), NULL, 9) == 1)) (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
return &platforms[WLHDD]; return &platforms[WLHDD];
if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) && if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
(simple_strtoul(getvar("et1phyaddr"), NULL, 9) == 10)) (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
return &platforms[WL300G]; return &platforms[WL300G];
} }
@ -554,21 +473,173 @@ static struct platform_t __init *platform_detect(void)
return &platforms[BUFFALO_UNKNOWN]; return &platforms[BUFFALO_UNKNOWN];
} }
if (!strcmp(getvar("CFEver"), "MotoWRv203"))
return &platforms[WR850GV2]; if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
!strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
return &platforms[WR850GV2V3];
}
/* not found */ /* not found */
return NULL; return NULL;
} }
static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos); static void register_buttons(struct button_t *b)
static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, void *data); {
static struct file_operations diag_proc_fops = { for (; b->name; b++)
read: diag_proc_read, platform.button_mask |= b->gpio;
write: diag_proc_write
};
platform.button_mask &= ~gpiomask;
gpio_outen(platform.button_mask, 0);
gpio_control(platform.button_mask, 0);
platform.button_polarity = gpio_in() & platform.button_mask;
gpio_intpolarity(platform.button_mask, platform.button_polarity);
gpio_intmask(platform.button_mask, platform.button_mask);
gpio_set_irqenable(1, button_handler);
}
static void unregister_buttons(struct button_t *b)
{
gpio_intmask(platform.button_mask, 0);
gpio_set_irqenable(0, button_handler);
}
static void hotplug_button(struct event_t *event)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
#else
call_usermodehelper (event->argv[0], event->argv, event->envp);
#endif
kfree(event);
}
static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
{
struct button_t *b;
u32 in, changed;
in = gpio_in() & platform.button_mask;
gpio_intpolarity(platform.button_mask, in);
changed = platform.button_polarity ^ in;
platform.button_polarity = in;
for (b = platform.buttons; b->name; b++) {
struct event_t *event;
if (!(b->gpio & changed)) continue;
b->pressed ^= 1;
if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
int i;
char *scratch = event->buf;
i = 0;
event->argv[i++] = hotplug_path;
event->argv[i++] = "button";
event->argv[i] = 0;
i = 0;
event->envp[i++] = "HOME=/";
event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
event->envp[i++] = scratch;
scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
event->envp[i++] = scratch;
scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
event->envp[i++] = scratch;
scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
event->envp[i] = 0;
INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
schedule_work(&event->wq);
}
b->seen = jiffies;
}
return IRQ_HANDLED;
}
static void register_leds(struct led_t *l)
{
struct proc_dir_entry *p;
u32 mask = 0;
u32 val = 0;
leds = proc_mkdir("led", diag);
if (!leds)
return;
for(; l->name; l++) {
if (l->gpio & gpiomask)
continue;
if (l->gpio & GPIO_TYPE_EXTIF) {
l->state = 0;
set_led_extif(l);
} else {
mask |= l->gpio;
val |= (l->polarity == NORMAL)?0:l->gpio;
}
if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
l->proc.type = PROC_LED;
l->proc.ptr = l;
p->data = (void *) &l->proc;
p->proc_fops = &diag_proc_fops;
}
}
gpio_outen(mask, mask);
gpio_control(mask, 0);
gpio_out(mask, val);
}
static void unregister_leds(struct led_t *l)
{
for(; l->name; l++)
remove_proc_entry(l->name, leds);
remove_proc_entry("led", diag);
}
static void set_led_extif(struct led_t *led)
{
gpio_set_extif(led->gpio, led->state);
}
static void led_flash(unsigned long dummy) {
struct led_t *l;
u32 mask = 0;
u8 extif_blink = 0;
for (l = platform.leds; l->name; l++) {
if (l->flash) {
if (l->gpio & GPIO_TYPE_EXTIF) {
extif_blink = 1;
l->state = !l->state;
set_led_extif(l);
} else {
mask |= l->gpio;
}
}
}
mask &= ~gpiomask;
if (mask) {
u32 val = ~gpio_in();
gpio_outen(mask, mask);
gpio_control(mask, 0);
gpio_out(mask, val);
}
if (mask || extif_blink) {
mod_timer(&led_timer, jiffies + FLASH_TIME);
}
}
static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos) static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
{ {
@ -595,8 +666,8 @@ static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t
if (led->gpio & GPIO_TYPE_EXTIF) { if (led->gpio & GPIO_TYPE_EXTIF) {
len = sprintf(page, "%d\n", led->state); len = sprintf(page, "%d\n", led->state);
} else { } else {
int in = (sb_gpioin(sbh) & led->gpio ? 1 : 0); u32 in = (gpio_in() & led->gpio ? 1 : 0);
int p = (led->polarity == NORMAL ? 0 : 1); u8 p = (led->polarity == NORMAL ? 0 : 1);
len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0)); len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
} }
} }
@ -606,7 +677,7 @@ static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t
len = sprintf(page, "%s\n", platform.name); len = sprintf(page, "%s\n", platform.name);
break; break;
case PROC_GPIOMASK: case PROC_GPIOMASK:
len = sprintf(page, "%d\n", gpiomask); len = sprintf(page, "0x%04x\n", gpiomask);
break; break;
} }
} }
@ -627,7 +698,7 @@ static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t
} }
static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, void *data) static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
{ {
#ifdef LINUX_2_4 #ifdef LINUX_2_4
struct inode *inode = file->f_dentry->d_inode; struct inode *inode = file->f_dentry->d_inode;
@ -654,9 +725,6 @@ static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count,
struct led_t *led = (struct led_t *) handler->ptr; struct led_t *led = (struct led_t *) handler->ptr;
int p = (led->polarity == NORMAL ? 0 : 1); int p = (led->polarity == NORMAL ? 0 : 1);
if (!(led->gpio & GPIO_TYPE_EXTIF) && (led->gpio & gpiomask))
break;
if (page[0] == 'f') { if (page[0] == 'f') {
led->flash = 1; led->flash = 1;
led_flash(0); led_flash(0);
@ -666,15 +734,25 @@ static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count,
led->state = p ^ ((page[0] == '1') ? 1 : 0); led->state = p ^ ((page[0] == '1') ? 1 : 0);
set_led_extif(led); set_led_extif(led);
} else { } else {
sb_gpioouten(sbh, led->gpio, led->gpio, GPIO_DRV_PRIORITY); gpio_outen(led->gpio, led->gpio);
sb_gpiocontrol(sbh, led->gpio, 0, GPIO_DRV_PRIORITY); gpio_control(led->gpio, 0);
sb_gpioout(sbh, led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0), GPIO_DRV_PRIORITY); gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
} }
} }
break; break;
} }
case PROC_GPIOMASK: case PROC_GPIOMASK:
gpiomask = simple_strtoul(page, NULL, 16); gpiomask = simple_strtoul(page, NULL, 0);
if (platform.buttons) {
unregister_buttons(platform.buttons);
register_buttons(platform.buttons);
}
if (platform.leds) {
unregister_leds(platform.leds);
register_leds(platform.leds);
}
break; break;
} }
ret = count; ret = count;
@ -684,216 +762,6 @@ static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count,
return ret; return ret;
} }
struct event_t {
struct work_struct tq;
char buf[256];
char *argv[3];
char *envp[6];
};
static void hotplug_button(struct event_t *event)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
#else
call_usermodehelper (event->argv[0], event->argv, event->envp);
#endif
kfree(event);
}
static void set_irqenable(int enabled)
{
unsigned int coreidx;
unsigned long flags;
chipcregs_t *cc;
spin_lock_irqsave(sbh_lock, flags);
coreidx = sb_coreidx(sbh);
if ((cc = sb_setcore(sbh, SB_CC, 0))) {
int intmask;
intmask = readl(&cc->intmask);
if (enabled)
intmask |= CI_GPIO;
else
intmask &= ~CI_GPIO;
writel(intmask, &cc->intmask);
}
sb_setcoreidx(sbh, coreidx);
spin_unlock_irqrestore(sbh_lock, flags);
}
static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
{
struct button_t *b;
int in = sb_gpioin(sbh);
struct event_t *event;
set_irqenable(0);
for (b = platform.buttons; b->name; b++) {
if (b->gpio & gpiomask)
continue;
if (b->polarity != (in & b->gpio)) {
b->pressed ^= 1;
if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
int i;
char *scratch = event->buf;
i = 0;
event->argv[i++] = hotplug_path;
event->argv[i++] = "button";
event->argv[i] = 0;
i = 0;
event->envp[i++] = "HOME=/";
event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
event->envp[i++] = scratch;
scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
event->envp[i++] = scratch;
scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
event->envp[i++] = scratch;
scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
event->envp[i] = 0;
INIT_WORK(&event->tq, (void *)(void *)hotplug_button, (void *)event);
schedule_work(&event->tq);
}
b->seen = jiffies;
b->polarity ^= b->gpio;
sb_gpiointpolarity(sbh, b->gpio, b->polarity, GPIO_DRV_PRIORITY);
}
}
set_irqenable(1);
return IRQ_HANDLED;
}
static struct timer_list led_timer = {
function: &led_flash
};
static void led_flash(unsigned long dummy) {
struct led_t *l;
unsigned mask = 0;
unsigned extif_blink = 0;
for (l = platform.leds; l->name; l++) {
if (l->flash) {
if (l->gpio & GPIO_TYPE_EXTIF) {
extif_blink = 1;
l->state = !l->state;
set_led_extif(l);
} else {
mask |= l->gpio;
}
}
}
mask &= ~gpiomask;
if (mask) {
unsigned val;
val = ~sb_gpioin(sbh);
val &= mask;
sb_gpioouten(sbh, mask, mask, GPIO_DRV_PRIORITY);
sb_gpiocontrol(sbh, mask, 0, GPIO_DRV_PRIORITY);
sb_gpioout(sbh, mask, val, GPIO_DRV_PRIORITY);
}
if (mask || extif_blink) {
mod_timer(&led_timer, jiffies + FLASH_TIME);
}
}
static void __init register_buttons(struct button_t *b)
{
int irq = sb_irq(sbh) + 2;
request_irq(irq, button_handler, SA_SHIRQ | SA_SAMPLE_RANDOM, "gpio", button_handler);
for (; b->name; b++) {
if (b->gpio & gpiomask)
continue;
sb_gpioouten(sbh, b->gpio,0, GPIO_DRV_PRIORITY);
sb_gpiocontrol(sbh, b->gpio,0, GPIO_DRV_PRIORITY);
b->polarity = sb_gpioin(sbh) & b->gpio;
sb_gpiointpolarity(sbh, b->gpio, b->polarity, GPIO_DRV_PRIORITY);
sb_gpiointmask(sbh, b->gpio, b->gpio, GPIO_DRV_PRIORITY);
}
set_irqenable(1);
}
static void __exit unregister_buttons(struct button_t *b)
{
int irq = sb_irq(sbh) + 2;
for (; b->name; b++)
sb_gpiointmask(sbh, b->gpio, 0, GPIO_DRV_PRIORITY);
free_irq(irq, button_handler);
}
static void __init register_leds(struct led_t *l)
{
struct proc_dir_entry *p;
leds = proc_mkdir("led", diag);
if (!leds)
return;
for(; l->name; l++) {
if (l->gpio & gpiomask)
continue;
if (l->gpio & GPIO_TYPE_EXTIF) {
l->state = 0;
set_led_extif(l);
} else {
sb_gpioouten(sbh, l->gpio, l->gpio, GPIO_DRV_PRIORITY);
sb_gpiocontrol(sbh, l->gpio, 0, GPIO_DRV_PRIORITY);
sb_gpioout(sbh, l->gpio, (l->polarity == NORMAL)?0:l->gpio, GPIO_DRV_PRIORITY);
}
if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
l->proc.type = PROC_LED;
l->proc.ptr = l;
p->data = (void *) &l->proc;
p->proc_fops = &diag_proc_fops;
}
}
}
static void __exit unregister_leds(struct led_t *l)
{
for(; l->name; l++)
remove_proc_entry(l->name, leds);
remove_proc_entry("led", diag);
}
static void __exit diag_exit(void)
{
del_timer(&led_timer);
if (platform.buttons)
unregister_buttons(platform.buttons);
if (platform.leds)
unregister_leds(platform.leds);
remove_proc_entry("model", diag);
remove_proc_entry("gpiomask", diag);
remove_proc_entry("diag", NULL);
}
static struct prochandler_t proc_model = { .type = PROC_MODEL };
static struct prochandler_t proc_gpiomask = { .type = PROC_GPIOMASK };
static int __init diag_init(void) static int __init diag_init(void)
{ {
static struct proc_dir_entry *p; static struct proc_dir_entry *p;
@ -932,6 +800,22 @@ static int __init diag_init(void)
return 0; return 0;
} }
static void __exit diag_exit(void)
{
del_timer(&led_timer);
if (platform.buttons)
unregister_buttons(platform.buttons);
if (platform.leds)
unregister_leds(platform.leds);
remove_proc_entry("model", diag);
remove_proc_entry("gpiomask", diag);
remove_proc_entry("diag", NULL);
}
module_init(diag_init); module_init(diag_init);
module_exit(diag_exit); module_exit(diag_exit);

125
package/broadcom-diag/src/diag.h Normal file
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@ -0,0 +1,125 @@
/*
* diag.h - GPIO interface driver for Broadcom boards
*
* Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
* Felix Fietkau <nbd@openwrt.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Id:$
*/
#define MODULE_NAME "diag"
#define MAX_GPIO 8
#define FLASH_TIME HZ/6
enum polarity_t {
REVERSE = 0,
NORMAL = 1,
};
enum {
PROC_BUTTON,
PROC_LED,
PROC_MODEL,
PROC_GPIOMASK
};
struct prochandler_t {
int type;
void *ptr;
};
struct button_t {
struct prochandler_t proc;
char *name;
u32 gpio;
unsigned long seen;
u8 pressed;
};
struct led_t {
struct prochandler_t proc;
char *name;
u32 gpio;
u8 polarity;
u8 flash;
u8 state;
};
struct platform_t {
char *name;
struct button_t buttons[MAX_GPIO];
u32 button_mask;
u32 button_polarity;
struct led_t leds[MAX_GPIO];
};
struct event_t {
struct work_struct wq;
char buf[256];
char *argv[3];
char *envp[6];
};
extern char *nvram_get(char *str);
static struct platform_t platform;
/* buttons */
static void register_buttons(struct button_t *b);
static void unregister_buttons(struct button_t *b);
static void hotplug_button(struct event_t *event);
static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs);
/* leds */
static void register_leds(struct led_t *l);
static void unregister_leds(struct led_t *l);
static void set_led_extif(struct led_t *led);
static void led_flash(unsigned long dummy);
/* 2.4 compatibility */
#ifndef TIMER_INITIALIZER
#define TIMER_INITIALIZER(_function, _expires, _data) \
{ \
/* _expires and _data currently unused */ \
function: _function \
}
#endif
static struct timer_list led_timer = TIMER_INITIALIZER(&led_flash, 0, 0);
/* proc */
static struct proc_dir_entry *diag, *leds;
static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos);
static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos);
static struct file_operations diag_proc_fops = {
read: diag_proc_read,
write: diag_proc_write
};
static struct prochandler_t proc_model = { .type = PROC_MODEL };
static struct prochandler_t proc_gpiomask = { .type = PROC_GPIOMASK };

78
package/broadcom-diag/src/gpio.h Normal file
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@ -0,0 +1,78 @@
#ifndef __DIAG_GPIO_H
#define __DIAG_GPIO_H
#include <typedefs.h>
#include <osl.h>
#include <bcmdevs.h>
#include <sbutils.h>
#include <sbconfig.h>
#include <sbchipc.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
#include <sbmips.h>
#else
#include <hndcpu.h>
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
#define sbh bcm947xx_sbh
#define sbh_lock bcm947xx_sbh_lock
#endif
#define EXTIF_ADDR 0x1f000000
#define EXTIF_UART (EXTIF_ADDR + 0x00800000)
#define GPIO_TYPE_NORMAL (0x0 << 24)
#define GPIO_TYPE_EXTIF (0x1 << 24)
#define GPIO_TYPE_MASK (0xf << 24)
extern void *sbh;
extern spinlock_t sbh_lock;
#define gpio_in() sb_gpioin(sbh)
#define gpio_out(mask, value) sb_gpioout(sbh, mask, ((value) & (mask)), GPIO_DRV_PRIORITY)
#define gpio_outen(mask, value) sb_gpioouten(sbh, mask, value, GPIO_DRV_PRIORITY)
#define gpio_control(mask, value) sb_gpiocontrol(sbh, mask, value, GPIO_DRV_PRIORITY)
#define gpio_intmask(mask, value) sb_gpiointmask(sbh, mask, value, GPIO_DRV_PRIORITY)
#define gpio_intpolarity(mask, value) sb_gpiointpolarity(sbh, mask, value, GPIO_DRV_PRIORITY)
static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *, struct pt_regs *))
{
unsigned int coreidx;
unsigned long flags;
chipcregs_t *cc;
int irq;
spin_lock_irqsave(sbh_lock, flags);
coreidx = sb_coreidx(sbh);
irq = sb_irq(sbh) + 2;
if (enabled)
request_irq(irq, handler, SA_SHIRQ | SA_SAMPLE_RANDOM, "gpio", handler);
else
free_irq(irq, handler);
if ((cc = sb_setcore(sbh, SB_CC, 0))) {
int intmask;
intmask = readl(&cc->intmask);
if (enabled)
intmask |= CI_GPIO;
else
intmask &= ~CI_GPIO;
writel(intmask, &cc->intmask);
}
sb_setcoreidx(sbh, coreidx);
spin_unlock_irqrestore(sbh_lock, flags);
}
static inline void gpio_set_extif(int gpio, int value)
{
volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (gpio & ~GPIO_TYPE_MASK);
if (value)
*addr = 0xFF;
else
*addr;
}
#endif