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

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32992 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
hauke
2012-08-04 19:46:25 +00:00
parent 039f179551
commit 1d6c42df96
13 changed files with 810 additions and 377 deletions
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55
package/switch/src/gpio-bcm947xx.h
View File

@@ -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 */

14
package/switch/src/gpio.h
View File

@@ -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

34
package/switch/src/switch-adm.c
View File

@@ -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);
}
}