forward port diag changes from whiterussian, add extra abstraction for the gpio stuff
SVN-Revision: 5478
This commit is contained in:
Felix Fietkau
parent
4e32115f2d
commit
b592d36cb1
@ -18,7 +18,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Id$
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* $Id:$
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*/
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#include <linux/module.h>
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#include <linux/pci.h>
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@ -37,79 +37,15 @@
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#define INIT_WORK INIT_TQUEUE
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#define schedule_work schedule_task
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#define work_struct tq_struct
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#define sbh bcm947xx_sbh
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#define sbh_lock bcm947xx_sbh_lock
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#endif
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#include <typedefs.h>
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#include <osl.h>
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#include <bcmdevs.h>
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#include <sbutils.h>
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#include <sbconfig.h>
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#include <sbchipc.h>
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
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#include <sbmips.h>
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#else
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#include <hndcpu.h>
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#endif
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#define MODULE_NAME "diag"
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#define MAX_GPIO 8
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#define FLASH_TIME HZ/6
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#define EXTIF_ADDR 0x1f000000
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#define EXTIF_UART (EXTIF_ADDR + 0x00800000)
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/* For LEDs */
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#define GPIO_TYPE_NORMAL (0x0 << 24)
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#define GPIO_TYPE_EXTIF (0x1 << 24)
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#define GPIO_TYPE_MASK (0xf << 24)
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#include "gpio.h"
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#include "diag.h"
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#define getvar(str) (nvram_get(str)?:"")
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static unsigned int gpiomask = 0;
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module_param(gpiomask, int, 0644);
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enum polarity_t {
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REVERSE = 0,
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NORMAL = 1,
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};
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enum {
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PROC_BUTTON,
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PROC_LED,
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PROC_MODEL,
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PROC_GPIOMASK
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};
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struct prochandler_t {
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int type;
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void *ptr;
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};
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struct button_t {
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struct prochandler_t proc;
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char *name;
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u16 gpio;
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u8 polarity;
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u8 pressed;
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unsigned long seen;
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};
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struct led_t {
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struct prochandler_t proc;
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char *name;
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u32 gpio;
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u8 polarity;
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u8 flash;
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u8 state;
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};
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struct platform_t {
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char *name;
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struct button_t buttons[MAX_GPIO];
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struct led_t leds[MAX_GPIO];
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};
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enum {
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/* Linksys */
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WAP54GV1,
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@ -149,13 +85,13 @@ enum {
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/* Motorola */
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WE800G,
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WR850GV1,
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WR850GV2,
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WR850GV2V3,
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/* Belkin */
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BELKIN_UNKNOWN,
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};
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static struct platform_t platforms[] = {
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static struct platform_t __initdata platforms[] = {
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/* Linksys */
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[WAP54GV1] = {
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.name = "Linksys WAP54G V1",
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@ -190,7 +126,7 @@ static struct platform_t platforms[] = {
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},
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},
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[WRT54G] = {
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.name = "Linksys WRT54G*",
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.name = "Linksys WRT54G/GS/GL",
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.buttons = {
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{ .name = "reset", .gpio = 1 << 6 },
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{ .name = "ses", .gpio = 1 << 4 },
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@ -291,12 +227,14 @@ static struct platform_t platforms[] = {
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.name = "Buffalo WHR-G54S",
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.buttons = {
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{ .name = "reset", .gpio = 1 << 4 },
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{ .name = "bridge", .gpio = 1 << 5 },
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{ .name = "ses", .gpio = 1 << 0 },
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},
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.leds = {
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{ .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
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{ .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
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{ .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
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{ .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
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{ .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
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},
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},
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[WBR2_G54] = {
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@ -422,21 +360,21 @@ static struct platform_t platforms[] = {
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.leds = {
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{ .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
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{ .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
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{ .name = "modem", .gpio = 1 << 6, .polarity = NORMAL },
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{ .name = "dmz", .gpio = 1 << 6, .polarity = NORMAL },
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{ .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
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{ .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
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},
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},
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[WR850GV2] = {
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.name = "Motorola WR850G V2",
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[WR850GV2V3] = {
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.name = "Motorola WR850G V2/V3",
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.buttons = {
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{ .name = "reset", .gpio = 1 << 5 },
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},
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.leds = {
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{ .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
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{ .name = "wlan", .gpio = 1 << 0, .polarity = NORMAL },
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{ .name = "modem_green",.gpio = 1 << 6, .polarity = REVERSE },
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{ .name = "modem_red", .gpio = 1 << 7, .polarity = REVERSE },
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{ .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
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{ .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
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{ .name = "dmz", .gpio = 1 << 6, .polarity = REVERSE },
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{ .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
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},
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},
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/* Belkin */
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@ -454,25 +392,6 @@ static struct platform_t platforms[] = {
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},
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};
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extern void *sbh;
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extern spinlock_t sbh_lock;
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extern char *nvram_get(char *str);
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static struct proc_dir_entry *diag, *leds;
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static struct platform_t platform;
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static void led_flash(unsigned long dummy);
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#define getvar(str) (nvram_get(str)?:"")
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static void set_led_extif(struct led_t *led)
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{
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volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (led->gpio & ~GPIO_TYPE_MASK);
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if (led->state)
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*addr = 0xFF;
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else
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*addr;
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}
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static struct platform_t __init *platform_detect(void)
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{
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char *boardnum, *boardtype, *buf;
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@ -505,7 +424,7 @@ static struct platform_t __init *platform_detect(void)
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if (!strncmp(boardtype, "bcm94710dev", 11)) {
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if (!strcmp(boardnum, "42"))
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return &platforms[WRT54GV1];
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if (simple_strtoul(boardnum, NULL, 9) == 2)
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if (simple_strtoul(boardnum, NULL, 0) == 2)
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return &platforms[WAP54GV1];
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}
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if (!strncmp(getvar("hardware_version"), "WL500-", 6))
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@ -513,10 +432,10 @@ static struct platform_t __init *platform_detect(void)
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if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
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/* Either WL-300g or WL-HDD, do more extensive checks */
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if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
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(simple_strtoul(getvar("et1phyaddr"), NULL, 9) == 1))
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(simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
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return &platforms[WLHDD];
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if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
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(simple_strtoul(getvar("et1phyaddr"), NULL, 9) == 10))
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(simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
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return &platforms[WL300G];
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}
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@ -554,21 +473,173 @@ static struct platform_t __init *platform_detect(void)
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return &platforms[BUFFALO_UNKNOWN];
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}
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if (!strcmp(getvar("CFEver"), "MotoWRv203"))
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return &platforms[WR850GV2];
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if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
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!strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
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return &platforms[WR850GV2V3];
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}
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/* not found */
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return NULL;
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}
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static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos);
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static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, void *data);
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static struct file_operations diag_proc_fops = {
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read: diag_proc_read,
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write: diag_proc_write
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};
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static void register_buttons(struct button_t *b)
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{
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for (; b->name; b++)
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platform.button_mask |= b->gpio;
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platform.button_mask &= ~gpiomask;
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gpio_outen(platform.button_mask, 0);
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gpio_control(platform.button_mask, 0);
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platform.button_polarity = gpio_in() & platform.button_mask;
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gpio_intpolarity(platform.button_mask, platform.button_polarity);
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gpio_intmask(platform.button_mask, platform.button_mask);
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gpio_set_irqenable(1, button_handler);
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}
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static void unregister_buttons(struct button_t *b)
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{
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gpio_intmask(platform.button_mask, 0);
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gpio_set_irqenable(0, button_handler);
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}
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static void hotplug_button(struct event_t *event)
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{
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
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call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
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#else
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call_usermodehelper (event->argv[0], event->argv, event->envp);
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#endif
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kfree(event);
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}
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static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
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{
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struct button_t *b;
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u32 in, changed;
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in = gpio_in() & platform.button_mask;
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gpio_intpolarity(platform.button_mask, in);
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changed = platform.button_polarity ^ in;
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platform.button_polarity = in;
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for (b = platform.buttons; b->name; b++) {
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struct event_t *event;
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if (!(b->gpio & changed)) continue;
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b->pressed ^= 1;
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if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
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int i;
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char *scratch = event->buf;
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i = 0;
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event->argv[i++] = hotplug_path;
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event->argv[i++] = "button";
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event->argv[i] = 0;
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i = 0;
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event->envp[i++] = "HOME=/";
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event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
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event->envp[i++] = scratch;
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scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
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event->envp[i++] = scratch;
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scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
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event->envp[i++] = scratch;
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scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
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event->envp[i] = 0;
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INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
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schedule_work(&event->wq);
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}
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b->seen = jiffies;
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}
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return IRQ_HANDLED;
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}
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static void register_leds(struct led_t *l)
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{
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struct proc_dir_entry *p;
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u32 mask = 0;
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u32 val = 0;
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leds = proc_mkdir("led", diag);
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if (!leds)
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return;
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for(; l->name; l++) {
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if (l->gpio & gpiomask)
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continue;
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if (l->gpio & GPIO_TYPE_EXTIF) {
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l->state = 0;
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set_led_extif(l);
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} else {
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mask |= l->gpio;
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val |= (l->polarity == NORMAL)?0:l->gpio;
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}
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if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
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l->proc.type = PROC_LED;
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l->proc.ptr = l;
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p->data = (void *) &l->proc;
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p->proc_fops = &diag_proc_fops;
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}
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}
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gpio_outen(mask, mask);
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gpio_control(mask, 0);
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gpio_out(mask, val);
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}
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static void unregister_leds(struct led_t *l)
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{
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for(; l->name; l++)
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remove_proc_entry(l->name, leds);
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remove_proc_entry("led", diag);
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}
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static void set_led_extif(struct led_t *led)
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{
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gpio_set_extif(led->gpio, led->state);
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}
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static void led_flash(unsigned long dummy) {
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struct led_t *l;
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u32 mask = 0;
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u8 extif_blink = 0;
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for (l = platform.leds; l->name; l++) {
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if (l->flash) {
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if (l->gpio & GPIO_TYPE_EXTIF) {
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extif_blink = 1;
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l->state = !l->state;
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set_led_extif(l);
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} else {
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mask |= l->gpio;
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}
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}
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}
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mask &= ~gpiomask;
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if (mask) {
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u32 val = ~gpio_in();
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gpio_outen(mask, mask);
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gpio_control(mask, 0);
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gpio_out(mask, val);
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}
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if (mask || extif_blink) {
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mod_timer(&led_timer, jiffies + FLASH_TIME);
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}
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}
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static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
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{
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@ -595,8 +666,8 @@ static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t
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if (led->gpio & GPIO_TYPE_EXTIF) {
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len = sprintf(page, "%d\n", led->state);
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} else {
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int in = (sb_gpioin(sbh) & led->gpio ? 1 : 0);
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int p = (led->polarity == NORMAL ? 0 : 1);
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u32 in = (gpio_in() & led->gpio ? 1 : 0);
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u8 p = (led->polarity == NORMAL ? 0 : 1);
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len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
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}
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}
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@ -606,7 +677,7 @@ static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t
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len = sprintf(page, "%s\n", platform.name);
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break;
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case PROC_GPIOMASK:
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len = sprintf(page, "%d\n", gpiomask);
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len = sprintf(page, "0x%04x\n", gpiomask);
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break;
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}
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}
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@ -627,7 +698,7 @@ static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t
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}
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static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, void *data)
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static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
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{
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#ifdef LINUX_2_4
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struct inode *inode = file->f_dentry->d_inode;
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@ -654,9 +725,6 @@ static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count,
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struct led_t *led = (struct led_t *) handler->ptr;
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int p = (led->polarity == NORMAL ? 0 : 1);
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if (!(led->gpio & GPIO_TYPE_EXTIF) && (led->gpio & gpiomask))
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break;
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if (page[0] == 'f') {
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led->flash = 1;
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led_flash(0);
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@ -666,15 +734,25 @@ static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count,
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led->state = p ^ ((page[0] == '1') ? 1 : 0);
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set_led_extif(led);
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} else {
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sb_gpioouten(sbh, led->gpio, led->gpio, GPIO_DRV_PRIORITY);
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sb_gpiocontrol(sbh, led->gpio, 0, GPIO_DRV_PRIORITY);
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sb_gpioout(sbh, led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0), GPIO_DRV_PRIORITY);
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gpio_outen(led->gpio, led->gpio);
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gpio_control(led->gpio, 0);
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gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
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}
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}
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break;
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}
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case PROC_GPIOMASK:
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gpiomask = simple_strtoul(page, NULL, 16);
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gpiomask = simple_strtoul(page, NULL, 0);
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if (platform.buttons) {
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unregister_buttons(platform.buttons);
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register_buttons(platform.buttons);
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||||
}
|
||||
|
||||
if (platform.leds) {
|
||||
unregister_leds(platform.leds);
|
||||
register_leds(platform.leds);
|
||||
}
|
||||
break;
|
||||
}
|
||||
ret = count;
|
||||
@ -684,216 +762,6 @@ static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count,
|
||||
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 struct proc_dir_entry *p;
|
||||
@ -932,6 +800,22 @@ static int __init diag_init(void)
|
||||
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_exit(diag_exit);
|
||||
|
||||
|
||||
125
package/broadcom-diag/src/diag.h
Normal file
125
package/broadcom-diag/src/diag.h
Normal file
@ -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
78
package/broadcom-diag/src/gpio.h
Normal file
@ -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
|
||||
Loading…
Reference in New Issue
Block a user