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-rw-r--r--package/broadcom-diag/src/diag.c120
-rw-r--r--package/broadcom-diag/src/diag.h1
-rw-r--r--package/broadcom-diag/src/gpio.h6
3 files changed, 109 insertions, 18 deletions
diff --git a/package/broadcom-diag/src/diag.c b/package/broadcom-diag/src/diag.c
index 168f81d..ccbaee2 100644
--- a/package/broadcom-diag/src/diag.c
+++ b/package/broadcom-diag/src/diag.c
@@ -123,6 +123,7 @@ enum {
WNR834BV1,
WNR834BV2,
WNDR3400V1,
+ WNDR3700V3,
/* Trendware */
TEW411BRPP,
@@ -927,6 +928,28 @@ static struct platform_t __initdata platforms[] = {
{ .name = "usb", .gpio = 1 << 2, .polarity = REVERSE },
},
},
+ [WNDR3700V3] = {
+ .name = "Netgear WNDR3700 V3",
+ .buttons = {
+ /* { .name = "usb", .gpio = 1 << 1 }, */ /* this button doesn't seem to exist. */
+ { .name = "wlan", .gpio = 1 << 2 },
+ { .name = "reset", .gpio = 1 << 3 },
+ { .name = "wps", .gpio = 1 << 4 },
+ /* { .name = "switch", .gpio = 1 << 5 },*/ /* nvram get gpio5=robo_reset */
+ },
+ .leds = {
+ { .name = "power", .gpio = (1 << 0) | GPIO_TYPE_SHIFT, .polarity = REVERSE },
+ { .name = "diag", .gpio = (1 << 1) | GPIO_TYPE_SHIFT, .polarity = REVERSE },
+ /* WAN LED doesn't respond to GPIO control. The switch is probably driving it.
+ * { .name = "wan", .gpio = (1 << 2) | GPIO_TYPE_SHIFT, .polarity = REVERSE },
+ */
+ { .name = "wlan2g", .gpio = (1 << 3) | GPIO_TYPE_SHIFT, .polarity = REVERSE },
+ { .name = "wlan5g", .gpio = (1 << 4) | GPIO_TYPE_SHIFT, .polarity = REVERSE },
+ { .name = "usb", .gpio = (1 << 5) | GPIO_TYPE_SHIFT, .polarity = REVERSE },
+ { .name = "wps", .gpio = (1 << 6) | GPIO_TYPE_SHIFT, .polarity = REVERSE },
+ { .name = "wlan", .gpio = (1 << 7) | GPIO_TYPE_SHIFT, .polarity = REVERSE },
+ },
+ },
/* Trendware */
[TEW411BRPP] = {
.name = "Trendware TEW411BRP+",
@@ -1308,6 +1331,8 @@ static struct platform_t __init *platform_detect(void)
return &platforms[WR850GV2V3];
case BCM47XX_BOARD_NETGEAR_WNDR3400V1:
return &platforms[WNDR3400V1];
+ case BCM47XX_BOARD_NETGEAR_WNDR3700V3:
+ return &platforms[WNDR3700V3];
case BCM47XX_BOARD_UNKNOWN:
case BCM47XX_BOARD_NON:
printk(MODULE_NAME ": unknown board found, try legacy detect\n");
@@ -1476,13 +1501,23 @@ static void register_leds(struct led_t *l)
if (l->gpio & gpiomask)
continue;
- if (l->gpio & GPIO_TYPE_EXTIF) {
+ switch (l->gpio & GPIO_TYPE_MASK) {
+ case GPIO_TYPE_EXTIF:
l->state = 0;
set_led_extif(l);
- } else {
+ break;
+ case GPIO_TYPE_SHIFT:
+ mask |= (SHIFTREG_DATA | SHIFTREG_CLK);
+ oe_mask |= (SHIFTREG_DATA | SHIFTREG_CLK);
+ l->state = (l->polarity != NORMAL);
+ set_led_shift(l);
+ break;
+ case GPIO_TYPE_NORMAL:
+ default:
if (l->polarity != INPUT) oe_mask |= l->gpio;
mask |= l->gpio;
val |= (l->polarity == NORMAL)?0:l->gpio;
+ break;
}
if (l->polarity == INPUT) continue;
@@ -1518,20 +1553,68 @@ static void set_led_extif(struct led_t *led)
*addr;
}
+/*
+ * This should be extended to allow the platform to specify the pins and width
+ * of the shift register. They're hardcoded for now because only the WNDR3700v3
+ * uses it.
+ */
+static void shiftreg_output(unsigned int val)
+{
+ unsigned int mask;
+
+ bcm47xx_gpio_out(SHIFTREG_DATA, SHIFTREG_DATA); /* init off, pull high */
+ bcm47xx_gpio_out(SHIFTREG_CLK, 0); /* init reset */
+
+ /* shift 8 times */
+ for(mask = 1 << (SHIFTREG_MAX_BITS-1); mask; mask >>= 1)
+ {
+ bcm47xx_gpio_out(SHIFTREG_DATA, (val & mask) ? SHIFTREG_DATA : 0);
+ bcm47xx_gpio_out(SHIFTREG_CLK, SHIFTREG_CLK); /* pull high to trigger */
+ bcm47xx_gpio_out(SHIFTREG_CLK, 0); /* reset to low */
+ }
+}
+
+static void set_led_shift(struct led_t *led)
+{
+ static u32 shiftreg = 0;
+ u32 old = shiftreg;
+ u32 pin = (led->gpio & ~GPIO_TYPE_MASK);
+
+ if (led->state) {
+ shiftreg |= pin;
+ } else {
+ shiftreg &= ~pin;
+ }
+
+ /* Clock the bits out. */
+ if (shiftreg != old) {
+ shiftreg_output(shiftreg);
+ }
+}
+
+
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;
- }
+ if (!l->flash) continue;
+ switch (l->gpio & GPIO_TYPE_MASK) {
+ case GPIO_TYPE_EXTIF:
+ extif_blink = 1;
+ l->state = !l->state;
+ set_led_extif(l);
+ break;
+ case GPIO_TYPE_SHIFT:
+ extif_blink = 1;
+ l->state = !l->state;
+ set_led_shift(l);
+ break;
+ case GPIO_TYPE_NORMAL:
+ default:
+ mask |= l->gpio;
+ break;
}
}
@@ -1562,16 +1645,14 @@ static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t
switch (handler->type) {
case PROC_LED: {
struct led_t * led = (struct led_t *) handler->ptr;
+ u8 p = (led->polarity == NORMAL ? 0 : 1);
if (led->flash) {
len = sprintf(page, "f\n");
+ } else if ((led->gpio & GPIO_TYPE_MASK) != GPIO_TYPE_NORMAL) {
+ len = sprintf(page, "%d\n", ((led->state ^ p) ? 1 : 0));
} else {
- if (led->gpio & GPIO_TYPE_EXTIF) {
- len = sprintf(page, "%d\n", led->state);
- } else {
- u32 in = (bcm47xx_gpio_in(~0) & led->gpio ? 1 : 0);
- u8 p = (led->polarity == NORMAL ? 0 : 1);
- len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
- }
+ u32 in = (bcm47xx_gpio_in(~0) & led->gpio ? 1 : 0);
+ len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
}
break;
}
@@ -1628,9 +1709,12 @@ static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count,
led_flash(0);
} else {
led->flash = 0;
- if (led->gpio & GPIO_TYPE_EXTIF) {
+ if ((led->gpio & GPIO_TYPE_MASK) == GPIO_TYPE_EXTIF) {
led->state = p ^ ((page[0] == '1') ? 1 : 0);
set_led_extif(led);
+ } else if ((led->gpio & GPIO_TYPE_MASK) == GPIO_TYPE_SHIFT) {
+ led->state = p ^ ((page[0] == '1') ? 1 : 0);
+ set_led_shift(led);
} else {
bcm47xx_gpio_outen(led->gpio, led->gpio);
bcm47xx_gpio_control(led->gpio, 0);
diff --git a/package/broadcom-diag/src/diag.h b/package/broadcom-diag/src/diag.h
index 698c376..d9b5b00 100644
--- a/package/broadcom-diag/src/diag.h
+++ b/package/broadcom-diag/src/diag.h
@@ -104,6 +104,7 @@ 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 set_led_shift(struct led_t *led);
static void led_flash(unsigned long dummy);
/* 2.4 compatibility */
diff --git a/package/broadcom-diag/src/gpio.h b/package/broadcom-diag/src/gpio.h
index d0e3e06..8bd3fe0 100644
--- a/package/broadcom-diag/src/gpio.h
+++ b/package/broadcom-diag/src/gpio.h
@@ -9,8 +9,14 @@
#define EXTIF_ADDR 0x1f000000
#define EXTIF_UART (EXTIF_ADDR + 0x00800000)
+/* GPIO pins driving LEDs through a shift register */
+#define SHIFTREG_DATA (1 << 6)
+#define SHIFTREG_CLK (1 << 7)
+#define SHIFTREG_MAX_BITS 8
+
#define GPIO_TYPE_NORMAL (0x0 << 24)
#define GPIO_TYPE_EXTIF (0x1 << 24)
+#define GPIO_TYPE_SHIFT (0x2 << 24)
#define GPIO_TYPE_MASK (0xf << 24)
#endif /* __DIAG_GPIO_H */
generated by cgit v1.1 at 2024-12-12 04:35:20 +0000