brcm47xx: use libgpio instaed of implementing the gpio interface ourself.

SVN-Revision: 32992

5 files changed, 98 insertions, 266 deletions

diff --git a/package/broadcom-diag/src/diag.c b/package/broadcom-diag/src/diag.c
index 090fc5e3d5..cf6d789c29 100644
--- a/package/broadcom-diag/src/diag.c
+++ b/package/broadcom-diag/src/diag.c
@@ -156,9 +156,9 @@ static void __init bcm4780_init(void) {
 
 		/* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 		printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
-		gpio_outen(pin, pin);
-		gpio_control(pin, 0);
-		gpio_out(pin, pin);
+		bcm47xx_gpio_outen(pin, pin);
+		bcm47xx_gpio_control(pin, 0);
+		bcm47xx_gpio_out(pin, pin);
 
 		/* Wait 5s, so the HDD can spin up */
 		set_current_state(TASK_INTERRUPTIBLE);
@@ -168,14 +168,14 @@ static void __init bcm4780_init(void) {
 static void __init NetCenter_init(void) {
 		/* unset pin 6 (+12V) */
 		int pin = 1 << 6;
-		gpio_outen(pin, pin);
-		gpio_control(pin, 0);
-		gpio_out(pin, pin);
+		bcm47xx_gpio_outen(pin, pin);
+		bcm47xx_gpio_control(pin, 0);
+		bcm47xx_gpio_out(pin, pin);
 		/* unset pin 1 (turn off red led, blue will light alone if +5V comes up) */
 		pin = 1 << 1;
-		gpio_outen(pin, pin);
-		gpio_control(pin, 0);
-		gpio_out(pin, pin);
+		bcm47xx_gpio_outen(pin, pin);
+		bcm47xx_gpio_control(pin, 0);
+		bcm47xx_gpio_out(pin, pin);
 		/* unset pin 3 (+5V) and wait 5 seconds (harddisk spin up) */
 		bcm4780_init();
 }
@@ -184,9 +184,9 @@ static void __init bcm57xx_init(void) {
 	int pin = 1 << 2;
 
 	/* FIXME: switch comes up, but port mappings/vlans not right */
-	gpio_outen(pin, pin);
-	gpio_control(pin, 0);
-	gpio_out(pin, pin);
+	bcm47xx_gpio_outen(pin, pin);
+	bcm47xx_gpio_control(pin, 0);
+	bcm47xx_gpio_out(pin, pin);
 }
 
 static struct platform_t __initdata platforms[] = {
@@ -1283,6 +1283,42 @@ static struct platform_t __init *platform_detect(void)
 	return NULL;
 }
 
+static inline void ssb_maskset32(struct ssb_device *dev,
+				  u16 offset, u32 mask, u32 set)
+{
+	ssb_write32(dev, offset, (ssb_read32(dev, offset) & mask) | set);
+}
+
+static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *))
+{
+	int irq;
+
+	irq = gpio_to_irq(0);
+	if (irq == -EINVAL) return;
+	
+	if (enabled) {
+		if (request_irq(irq, handler, IRQF_SHARED | IRQF_SAMPLE_RANDOM, "gpio", handler))
+			return;
+	} else {
+		free_irq(irq, handler);
+	}
+
+	switch (bcm47xx_bus_type) {
+#ifdef CONFIG_BCM47XX_SSB
+	case BCM47XX_BUS_TYPE_SSB:
+		if (bcm47xx_bus.ssb.chipco.dev)
+			ssb_maskset32(bcm47xx_bus.ssb.chipco.dev, SSB_CHIPCO_IRQMASK, ~SSB_CHIPCO_IRQ_GPIO, (enabled ? SSB_CHIPCO_IRQ_GPIO : 0));
+		break;
+#endif
+#ifdef CONFIG_BCM47XX_BCMA
+	case BCM47XX_BUS_TYPE_BCMA:
+		if (bcm47xx_bus.bcma.bus.drv_cc.core)
+			bcma_maskset32(bcm47xx_bus.bcma.bus.drv_cc.core, BCMA_CC_IRQMASK, ~BCMA_CC_IRQ_GPIO, (enabled ? BCMA_CC_IRQ_GPIO : 0));
+		break;
+#endif
+	}
+}
+
 static void register_buttons(struct button_t *b)
 {
 	for (; b->name; b++)
@@ -1290,18 +1326,18 @@ static void register_buttons(struct button_t *b)
 
 	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_setintmask(platform.button_mask, platform.button_mask);
+	bcm47xx_gpio_outen(platform.button_mask, 0);
+	bcm47xx_gpio_control(platform.button_mask, 0);
+	platform.button_polarity = bcm47xx_gpio_in(~0) & platform.button_mask;
+	bcm47xx_gpio_polarity(platform.button_mask, platform.button_polarity);
+	bcm47xx_gpio_intmask(platform.button_mask, platform.button_mask);
 
 	gpio_set_irqenable(1, button_handler);
 }
 
 static void unregister_buttons(struct button_t *b)
 {
-	gpio_setintmask(platform.button_mask, 0);
+	bcm47xx_gpio_intmask(platform.button_mask, 0);
 
 	gpio_set_irqenable(0, button_handler);
 }
@@ -1361,12 +1397,12 @@ static irqreturn_t button_handler(int irq, void *dev_id)
 	struct button_t *b;
 	u32 in, changed;
 
-	in = gpio_in() & platform.button_mask;
-	gpio_intpolarity(platform.button_mask, in);
+	in = bcm47xx_gpio_in(~0) & platform.button_mask;
+	bcm47xx_gpio_polarity(platform.button_mask, in);
 	changed = platform.button_polarity ^ in;
 	platform.button_polarity = in;
 
-	changed &= ~gpio_outen(0, 0);
+	changed &= ~bcm47xx_gpio_outen(0, 0);
 
 	for (b = platform.buttons; b->name; b++) {
 		struct event_t *event;
@@ -1422,10 +1458,10 @@ static void register_leds(struct led_t *l)
 		}
 	}
 
-	gpio_outen(mask, oe_mask);
-	gpio_control(mask, 0);
-	gpio_out(mask, val);
-	gpio_setintmask(mask, 0);
+	bcm47xx_gpio_outen(mask, oe_mask);
+	bcm47xx_gpio_control(mask, 0);
+	bcm47xx_gpio_out(mask, val);
+	bcm47xx_gpio_intmask(mask, 0);
 }
 
 static void unregister_leds(struct led_t *l)
@@ -1438,7 +1474,11 @@ static void unregister_leds(struct led_t *l)
 
 static void set_led_extif(struct led_t *led)
 {
-	gpio_set_extif(led->gpio, led->state);
+	volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (led->gpio & ~GPIO_TYPE_MASK);
+	if (led->state)
+		*addr = 0xFF;
+	else
+		*addr;
 }
 
 static void led_flash(unsigned long dummy) {
@@ -1460,11 +1500,11 @@ static void led_flash(unsigned long dummy) {
 
 	mask &= ~gpiomask;
 	if (mask) {
-		u32 val = ~gpio_in();
+		u32 val = ~bcm47xx_gpio_in(~0);
 
-		gpio_outen(mask, mask);
-		gpio_control(mask, 0);
-		gpio_out(mask, val);
+		bcm47xx_gpio_outen(mask, mask);
+		bcm47xx_gpio_control(mask, 0);
+		bcm47xx_gpio_out(mask, val);
 	}
 	if (mask || extif_blink) {
 		mod_timer(&led_timer, jiffies + FLASH_TIME);
@@ -1491,7 +1531,7 @@ static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t
 					if (led->gpio & GPIO_TYPE_EXTIF) {
 						len = sprintf(page, "%d\n", led->state);
 					} else {
-						u32 in = (gpio_in() & led->gpio ? 1 : 0);
+						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));
 					}
@@ -1555,9 +1595,9 @@ static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count,
 						led->state = p ^ ((page[0] == '1') ? 1 : 0);
 						set_led_extif(led);
 					} else {
-						gpio_outen(led->gpio, led->gpio);
-						gpio_control(led->gpio, 0);
-						gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
+						bcm47xx_gpio_outen(led->gpio, led->gpio);
+						bcm47xx_gpio_control(led->gpio, 0);
+						bcm47xx_gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
 					}
 				}
 				break;
diff --git a/package/broadcom-diag/src/gpio.h b/package/broadcom-diag/src/gpio.h
index 4e382edeeb..d0e3e06c8a 100644
--- a/package/broadcom-diag/src/gpio.h
+++ b/package/broadcom-diag/src/gpio.h
@@ -6,150 +6,6 @@
 #include <linux/gpio.h>
 #include <bcm47xx.h>
 
-static inline u32 gpio_in(void)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_in(&bcm47xx_bus.ssb, ~0);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc, ~0);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_out(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_out(&bcm47xx_bus.ssb, mask, value);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_outen(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		ssb_gpio_outen(&bcm47xx_bus.ssb, mask, value);
-		return 0;
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-		return 0;
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_control(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_control(&bcm47xx_bus.ssb, mask, value);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_control(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_setintmask(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_intmask(&bcm47xx_bus.ssb, mask, value);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_intmask(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_intpolarity(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_polarity(&bcm47xx_bus.ssb, mask, value);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_polarity(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-#endif
-	}
-	return -EINVAL;
-}
-
-#ifdef CONFIG_BCM47XX_SSB
-static inline u32 __ssb_write32_masked(struct ssb_device *dev, u16 offset,
-				       u32 mask, u32 value)
-{
-	value &= mask;
-	value |= ssb_read32(dev, offset) & ~mask;
-	ssb_write32(dev, offset, value);
-	return value;
-}
-#endif
-
-#ifdef CONFIG_BCM47XX_BCMA
-static inline u32 __bcma_write32_masked(struct bcma_device *dev, u16 offset,
-				       u32 mask, u32 value)
-{
-	value &= mask;
-	value |= bcma_read32(dev, offset) & ~mask;
-	bcma_write32(dev, offset, value);
-	return value;
-}
-#endif
-
-static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *))
-{
-	int irq;
-
-	irq = gpio_to_irq(0);
-	if (irq == -EINVAL) return;
-	
-	if (enabled) {
-		if (request_irq(irq, handler, IRQF_SHARED | IRQF_SAMPLE_RANDOM, "gpio", handler))
-			return;
-	} else {
-		free_irq(irq, handler);
-	}
-
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		if (bcm47xx_bus.ssb.chipco.dev)
-			__ssb_write32_masked(bcm47xx_bus.ssb.chipco.dev, SSB_CHIPCO_IRQMASK, SSB_CHIPCO_IRQ_GPIO, (enabled ? SSB_CHIPCO_IRQ_GPIO : 0));
-		break;
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		if (bcm47xx_bus.bcma.bus.drv_cc.core)
-			__bcma_write32_masked(bcm47xx_bus.bcma.bus.drv_cc.core, BCMA_CC_IRQMASK, BCMA_CC_IRQ_GPIO, (enabled ? BCMA_CC_IRQ_GPIO : 0));
-		break;
-#endif
-	}
-}
-
 #define EXTIF_ADDR 0x1f000000
 #define EXTIF_UART (EXTIF_ADDR + 0x00800000)
 
@@ -157,13 +13,4 @@ static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *))
 #define GPIO_TYPE_EXTIF 	(0x1 << 24)
 #define GPIO_TYPE_MASK  	(0xf << 24)
 
-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 /* __DIAG_GPIO_H */
diff --git a/package/switch/src/gpio-bcm947xx.h b/package/switch/src/gpio-bcm947xx.h
deleted file mode 100644
index 23c221da87..0000000000
--- a/package/switch/src/gpio-bcm947xx.h
+++ /dev/null
@@ -1,55 +0,0 @@
-#ifndef __SWITCH_GPIO_H
-#define __SWITCH_GPIO_H
-
-#include <linux/ssb/ssb_embedded.h>
-#include <linux/bcma/bcma_driver_chipcommon.h>
-#include <bcm47xx.h>
-
-static inline u32 gpio_in(void)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_in(&bcm47xx_bus.ssb, ~0);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc, ~0);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_out(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_out(&bcm47xx_bus.ssb, mask, value);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_outen(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		ssb_gpio_outen(&bcm47xx_bus.ssb, mask, value);
-		return 0;
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-		return 0;
-#endif
-	}
-	return -EINVAL;
-}
-
-#endif /* __SWITCH_GPIO_H */
diff --git a/package/switch/src/gpio.h b/package/switch/src/gpio.h
index 90bafd39ed..cb734f7b1b 100644
--- a/package/switch/src/gpio.h
+++ b/package/switch/src/gpio.h
@@ -9,16 +9,16 @@
 #define __GPIO_H
 
 #ifdef CONFIG_BCM47XX
-#include "gpio-bcm947xx.h"
+#include <linux/gpio.h>
 #else
 #warning "Unsupported configuration."
 
-#define gpio_in()			(-1U)
-#define gpio_out(mask, value)		(-1U)
-#define gpio_outen(mask, value)		(-1U)
-#define gpio_control(mask, value)	(-1U)
-#define gpio_intmask(mask, value)	(-1U)
-#define gpio_intpolarity(mask, value)	(-1U)
+#define bcm47xx_gpio_in(mask)			(-1U)
+#define bcm47xx_gpio_out(mask, value)		(-1U)
+#define bcm47xx_gpio_outen(mask, value)		(-1U)
+#define bcm47xx_gpio_control(mask, value)	(-1U)
+#define bcm47xx_gpio_intmask(mask, value)	(-1U)
+#define bcm47xx_gpio_polarity(mask, value)	(-1U)
 
 #endif
 
diff --git a/package/switch/src/switch-adm.c b/package/switch/src/switch-adm.c
index 3826ca57f8..9a6d32b1ef 100644
--- a/package/switch/src/switch-adm.c
+++ b/package/switch/src/switch-adm.c
@@ -104,7 +104,7 @@ static void adm_write(int cs, char *buf, unsigned int bits)
 	int i, len = (bits + 7) / 8;
 	__u8 mask;
 
-	gpio_out(eecs, (cs ? eecs : 0));
+	bcm47xx_gpio_out(eecs, (cs ? eecs : 0));
 	udelay(EECK_EDGE_TIME);
 
 	/* Byte assemble from MSB to LSB */
@@ -112,25 +112,25 @@ static void adm_write(int cs, char *buf, unsigned int bits)
 		/* Bit bang from MSB to LSB */
 		for (mask = 0x80; mask && bits > 0; mask >>= 1, bits --) {
 			/* Clock low */
-			gpio_out(eesk, 0);
+			bcm47xx_gpio_out(eesk, 0);
 			udelay(EECK_EDGE_TIME);
 
 			/* Output on rising edge */
-			gpio_out(eedi, ((mask & buf[i]) ? eedi : 0));
+			bcm47xx_gpio_out(eedi, ((mask & buf[i]) ? eedi : 0));
 			udelay(EEDI_SETUP_TIME);
 
 			/* Clock high */
-			gpio_out(eesk, eesk);
+			bcm47xx_gpio_out(eesk, eesk);
 			udelay(EECK_EDGE_TIME);
 		}
 	}
 
 	/* Clock low */
-	gpio_out(eesk, 0);
+	bcm47xx_gpio_out(eesk, 0);
 	udelay(EECK_EDGE_TIME);
 
 	if (cs)
-		gpio_out(eecs, 0);
+		bcm47xx_gpio_out(eecs, 0);
 }
 
 
@@ -139,7 +139,7 @@ static void adm_read(int cs, char *buf, unsigned int bits)
 	int i, len = (bits + 7) / 8;
 	__u8 mask;
 
-	gpio_out(eecs, (cs ? eecs : 0));
+	bcm47xx_gpio_out(eecs, (cs ? eecs : 0));
 	udelay(EECK_EDGE_TIME);
 
 	/* Byte assemble from MSB to LSB */
@@ -151,16 +151,16 @@ static void adm_read(int cs, char *buf, unsigned int bits)
 			__u8 gp;
 
 			/* Clock low */
-			gpio_out(eesk, 0);
+			bcm47xx_gpio_out(eesk, 0);
 			udelay(EECK_EDGE_TIME);
 
 			/* Input on rising edge */
-			gp = gpio_in();
+			gp = bcm47xx_gpio_in(~0);
 			if (gp & eedi)
 				byte |= mask;
 
 			/* Clock high */
-			gpio_out(eesk, eesk);
+			bcm47xx_gpio_out(eesk, eesk);
 			udelay(EECK_EDGE_TIME);
 		}
 
@@ -168,11 +168,11 @@ static void adm_read(int cs, char *buf, unsigned int bits)
 	}
 
 	/* Clock low */
-	gpio_out(eesk, 0);
+	bcm47xx_gpio_out(eesk, 0);
 	udelay(EECK_EDGE_TIME);
 
 	if (cs)
-		gpio_out(eecs, 0);
+		bcm47xx_gpio_out(eecs, 0);
 }
 
 
@@ -180,10 +180,10 @@ static void adm_read(int cs, char *buf, unsigned int bits)
 static void adm_enout(__u8 pins, __u8 val)
 {
 	/* Prepare GPIO output value */
-	gpio_out(pins, val);
+	bcm47xx_gpio_out(pins, val);
 
 	/* Enable GPIO outputs */
-	gpio_outen(pins, pins);
+	bcm47xx_gpio_outen(pins, pins);
 	udelay(EECK_EDGE_TIME);
 }
 
@@ -192,7 +192,7 @@ static void adm_enout(__u8 pins, __u8 val)
 static void adm_disout(__u8 pins)
 {
 	/* Disable GPIO outputs */
-	gpio_outen(pins, 0);
+	bcm47xx_gpio_outen(pins, 0);
 	udelay(EECK_EDGE_TIME);
 }
 
@@ -203,11 +203,11 @@ static void adm_adclk(int clocks)
 	int i;
 	for (i = 0; i < clocks; i++) {
 		/* Clock high */
-		gpio_out(eesk, eesk);
+		bcm47xx_gpio_out(eesk, eesk);
 		udelay(EECK_EDGE_TIME);
 
 		/* Clock low */
-		gpio_out(eesk, 0);
+		bcm47xx_gpio_out(eesk, 0);
 		udelay(EECK_EDGE_TIME);
 	}
 }