projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 34cc662f AJ |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net> | |
| 7 | */ | |
| 8 | ||
| 9 | #ifndef __BCM47XX_GPIO_H | |
| 10 | #define __BCM47XX_GPIO_H | |
| 11 | ||
| b06f3e19 | 12 | #include <linux/ssb/ssb_embedded.h> |
| c1d1c5d4 | 13 | #include <linux/bcma/bcma.h> |
| b06f3e19 AJ |
14 | #include <asm/mach-bcm47xx/bcm47xx.h> |
| 15 | ||
| 34cc662f AJ |
16 | #define BCM47XX_EXTIF_GPIO_LINES 5 |
| 17 | #define BCM47XX_CHIPCO_GPIO_LINES 16 | |
| 18 | ||
| b06f3e19 AJ |
19 | extern int gpio_request(unsigned gpio, const char *label); |
| 20 | extern void gpio_free(unsigned gpio); | |
| 21 | extern int gpio_to_irq(unsigned gpio); | |
| 34cc662f | 22 | |
| b06f3e19 | 23 | static inline int gpio_get_value(unsigned gpio) |
| 34cc662f | 24 | { |
| 08ccf572 | 25 | switch (bcm47xx_bus_type) { |
| a656ffcb | 26 | #ifdef CONFIG_BCM47XX_SSB |
| 08ccf572 HM |
27 | case BCM47XX_BUS_TYPE_SSB: |
| 28 | return ssb_gpio_in(&bcm47xx_bus.ssb, 1 << gpio); | |
| c1d1c5d4 HM |
29 | #endif |
| 30 | #ifdef CONFIG_BCM47XX_BCMA | |
| 31 | case BCM47XX_BUS_TYPE_BCMA: | |
| 32 | return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc, | |
| 33 | 1 << gpio); | |
| a656ffcb | 34 | #endif |
| 08ccf572 HM |
35 | } |
| 36 | return -EINVAL; | |
| 34cc662f AJ |
37 | } |
| 38 | ||
| df55a66a FF |
39 | #define gpio_get_value_cansleep gpio_get_value |
| 40 | ||
| b06f3e19 | 41 | static inline void gpio_set_value(unsigned gpio, int value) |
| 34cc662f | 42 | { |
| 08ccf572 | 43 | switch (bcm47xx_bus_type) { |
| a656ffcb | 44 | #ifdef CONFIG_BCM47XX_SSB |
| 08ccf572 HM |
45 | case BCM47XX_BUS_TYPE_SSB: |
| 46 | ssb_gpio_out(&bcm47xx_bus.ssb, 1 << gpio, | |
| 47 | value ? 1 << gpio : 0); | |
| c1d1c5d4 HM |
48 | return; |
| 49 | #endif | |
| 50 | #ifdef CONFIG_BCM47XX_BCMA | |
| 51 | case BCM47XX_BUS_TYPE_BCMA: | |
| 52 | bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio, | |
| 53 | value ? 1 << gpio : 0); | |
| 54 | return; | |
| a656ffcb | 55 | #endif |
| 08ccf572 | 56 | } |
| 34cc662f AJ |
57 | } |
| 58 | ||
| df55a66a FF |
59 | #define gpio_set_value_cansleep gpio_set_value |
| 60 | ||
| 61 | static inline int gpio_cansleep(unsigned gpio) | |
| 62 | { | |
| 63 | return 0; | |
| 64 | } | |
| 65 | ||
| 66 | static inline int gpio_is_valid(unsigned gpio) | |
| 67 | { | |
| 68 | return gpio < (BCM47XX_EXTIF_GPIO_LINES + BCM47XX_CHIPCO_GPIO_LINES); | |
| 69 | } | |
| 70 | ||
| 71 | ||
| b06f3e19 | 72 | static inline int gpio_direction_input(unsigned gpio) |
| 34cc662f | 73 | { |
| 08ccf572 | 74 | switch (bcm47xx_bus_type) { |
| a656ffcb | 75 | #ifdef CONFIG_BCM47XX_SSB |
| 08ccf572 HM |
76 | case BCM47XX_BUS_TYPE_SSB: |
| 77 | ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 0); | |
| 78 | return 0; | |
| c1d1c5d4 HM |
79 | #endif |
| 80 | #ifdef CONFIG_BCM47XX_BCMA | |
| 81 | case BCM47XX_BUS_TYPE_BCMA: | |
| 82 | bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio, | |
| 83 | 0); | |
| 84 | return 0; | |
| a656ffcb | 85 | #endif |
| 08ccf572 HM |
86 | } |
| 87 | return -EINVAL; | |
| 34cc662f AJ |
88 | } |
| 89 | ||
| b06f3e19 | 90 | static inline int gpio_direction_output(unsigned gpio, int value) |
| 34cc662f | 91 | { |
| 08ccf572 | 92 | switch (bcm47xx_bus_type) { |
| a656ffcb | 93 | #ifdef CONFIG_BCM47XX_SSB |
| 08ccf572 HM |
94 | case BCM47XX_BUS_TYPE_SSB: |
| 95 | /* first set the gpio out value */ | |
| 96 | ssb_gpio_out(&bcm47xx_bus.ssb, 1 << gpio, | |
| 97 | value ? 1 << gpio : 0); | |
| 98 | /* then set the gpio mode */ | |
| 99 | ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 1 << gpio); | |
| 100 | return 0; | |
| c1d1c5d4 HM |
101 | #endif |
| 102 | #ifdef CONFIG_BCM47XX_BCMA | |
| 103 | case BCM47XX_BUS_TYPE_BCMA: | |
| 104 | /* first set the gpio out value */ | |
| 105 | bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio, | |
| 106 | value ? 1 << gpio : 0); | |
| 107 | /* then set the gpio mode */ | |
| 108 | bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio, | |
| 109 | 1 << gpio); | |
| 110 | return 0; | |
| a656ffcb | 111 | #endif |
| 08ccf572 HM |
112 | } |
| 113 | return -EINVAL; | |
| 34cc662f AJ |
114 | } |
| 115 | ||
| e0f7ad5f | 116 | static inline int gpio_intmask(unsigned gpio, int value) |
| 34cc662f | 117 | { |
| 08ccf572 | 118 | switch (bcm47xx_bus_type) { |
| a656ffcb | 119 | #ifdef CONFIG_BCM47XX_SSB |
| 08ccf572 HM |
120 | case BCM47XX_BUS_TYPE_SSB: |
| 121 | ssb_gpio_intmask(&bcm47xx_bus.ssb, 1 << gpio, | |
| 122 | value ? 1 << gpio : 0); | |
| 123 | return 0; | |
| c1d1c5d4 HM |
124 | #endif |
| 125 | #ifdef CONFIG_BCM47XX_BCMA | |
| 126 | case BCM47XX_BUS_TYPE_BCMA: | |
| 127 | bcma_chipco_gpio_intmask(&bcm47xx_bus.bcma.bus.drv_cc, | |
| 128 | 1 << gpio, value ? 1 << gpio : 0); | |
| 129 | return 0; | |
| a656ffcb | 130 | #endif |
| 08ccf572 HM |
131 | } |
| 132 | return -EINVAL; | |
| 34cc662f AJ |
133 | } |
| 134 | ||
| e0f7ad5f | 135 | static inline int gpio_polarity(unsigned gpio, int value) |
| 34cc662f | 136 | { |
| 08ccf572 | 137 | switch (bcm47xx_bus_type) { |
| a656ffcb | 138 | #ifdef CONFIG_BCM47XX_SSB |
| 08ccf572 HM |
139 | case BCM47XX_BUS_TYPE_SSB: |
| 140 | ssb_gpio_polarity(&bcm47xx_bus.ssb, 1 << gpio, | |
| 141 | value ? 1 << gpio : 0); | |
| 142 | return 0; | |
| c1d1c5d4 HM |
143 | #endif |
| 144 | #ifdef CONFIG_BCM47XX_BCMA | |
| 145 | case BCM47XX_BUS_TYPE_BCMA: | |
| 146 | bcma_chipco_gpio_polarity(&bcm47xx_bus.bcma.bus.drv_cc, | |
| 147 | 1 << gpio, value ? 1 << gpio : 0); | |
| 148 | return 0; | |
| a656ffcb | 149 | #endif |
| 08ccf572 HM |
150 | } |
| 151 | return -EINVAL; | |
| 34cc662f AJ |
152 | } |
| 153 | ||
| 154 | ||
| 34cc662f | 155 | #endif /* __BCM47XX_GPIO_H */ |