projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 378be066 RV |
1 | /* |
| 2 | * Copyright (C) ST-Ericsson SA 2010 | |
| 3 | * | |
| 4 | * License terms: GNU General Public License, version 2 | |
| 5 | * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson | |
| 6 | * | |
| 7 | * Based on arch/arm/mach-pxa/include/mach/mfp.h: | |
| 8 | * Copyright (C) 2007 Marvell International Ltd. | |
| 9 | * eric miao <eric.miao@marvell.com> | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef __PLAT_PINCFG_H | |
| 13 | #define __PLAT_PINCFG_H | |
| 14 | ||
| 15 | /* | |
| 16 | * pin configurations are represented by 32-bit integers: | |
| 17 | * | |
| 18 | * bit 0.. 8 - Pin Number (512 Pins Maximum) | |
| 19 | * bit 9..10 - Alternate Function Selection | |
| 20 | * bit 11..12 - Pull up/down state | |
| 21 | * bit 13 - Sleep mode behaviour | |
| 6720db7c RV |
22 | * bit 14 - (sleep mode) Direction |
| 23 | * bit 15 - (sleep mode) Value (if output) | |
| 378be066 RV |
24 | * |
| 25 | * to facilitate the definition, the following macros are provided | |
| 26 | * | |
| 27 | * PIN_CFG_DEFAULT - default config (0): | |
| 28 | * pull up/down = disabled | |
| 7e3f7e59 | 29 | * sleep mode = input/wakeup |
| 6720db7c RV |
30 | * (sleep mode) direction = input |
| 31 | * (sleep mode) value = low | |
| 378be066 RV |
32 | * |
| 33 | * PIN_CFG - default config with alternate function | |
| 34 | * PIN_CFG_PULL - default config with alternate function and pull up/down | |
| 35 | */ | |
| 36 | ||
| 37 | typedef unsigned long pin_cfg_t; | |
| 38 | ||
| 39 | #define PIN_NUM_MASK 0x1ff | |
| 40 | #define PIN_NUM(x) ((x) & PIN_NUM_MASK) | |
| 41 | ||
| 42 | #define PIN_ALT_SHIFT 9 | |
| 43 | #define PIN_ALT_MASK (0x3 << PIN_ALT_SHIFT) | |
| 44 | #define PIN_ALT(x) (((x) & PIN_ALT_MASK) >> PIN_ALT_SHIFT) | |
| 45 | #define PIN_GPIO (NMK_GPIO_ALT_GPIO << PIN_ALT_SHIFT) | |
| 46 | #define PIN_ALT_A (NMK_GPIO_ALT_A << PIN_ALT_SHIFT) | |
| 47 | #define PIN_ALT_B (NMK_GPIO_ALT_B << PIN_ALT_SHIFT) | |
| 48 | #define PIN_ALT_C (NMK_GPIO_ALT_C << PIN_ALT_SHIFT) | |
| 49 | ||
| 50 | #define PIN_PULL_SHIFT 11 | |
| 51 | #define PIN_PULL_MASK (0x3 << PIN_PULL_SHIFT) | |
| 52 | #define PIN_PULL(x) (((x) & PIN_PULL_MASK) >> PIN_PULL_SHIFT) | |
| 53 | #define PIN_PULL_NONE (NMK_GPIO_PULL_NONE << PIN_PULL_SHIFT) | |
| 54 | #define PIN_PULL_UP (NMK_GPIO_PULL_UP << PIN_PULL_SHIFT) | |
| 55 | #define PIN_PULL_DOWN (NMK_GPIO_PULL_DOWN << PIN_PULL_SHIFT) | |
| 56 | ||
| 57 | #define PIN_SLPM_SHIFT 13 | |
| 58 | #define PIN_SLPM_MASK (0x1 << PIN_SLPM_SHIFT) | |
| 59 | #define PIN_SLPM(x) (((x) & PIN_SLPM_MASK) >> PIN_SLPM_SHIFT) | |
| 6720db7c | 60 | #define PIN_SLPM_MAKE_INPUT (NMK_GPIO_SLPM_INPUT << PIN_SLPM_SHIFT) |
| 378be066 | 61 | #define PIN_SLPM_NOCHANGE (NMK_GPIO_SLPM_NOCHANGE << PIN_SLPM_SHIFT) |
| 7e3f7e59 RV |
62 | /* These two replace the above in DB8500v2+ */ |
| 63 | #define PIN_SLPM_WAKEUP_ENABLE (NMK_GPIO_SLPM_WAKEUP_ENABLE << PIN_SLPM_SHIFT) | |
| 64 | #define PIN_SLPM_WAKEUP_DISABLE (NMK_GPIO_SLPM_WAKEUP_DISABLE << PIN_SLPM_SHIFT) | |
| 378be066 | 65 | |
| 6720db7c RV |
66 | #define PIN_DIR_SHIFT 14 |
| 67 | #define PIN_DIR_MASK (0x1 << PIN_DIR_SHIFT) | |
| 68 | #define PIN_DIR(x) (((x) & PIN_DIR_MASK) >> PIN_DIR_SHIFT) | |
| 69 | #define PIN_DIR_INPUT (0 << PIN_DIR_SHIFT) | |
| 70 | #define PIN_DIR_OUTPUT (1 << PIN_DIR_SHIFT) | |
| 71 | ||
| 72 | #define PIN_VAL_SHIFT 15 | |
| 73 | #define PIN_VAL_MASK (0x1 << PIN_VAL_SHIFT) | |
| 74 | #define PIN_VAL(x) (((x) & PIN_VAL_MASK) >> PIN_VAL_SHIFT) | |
| 75 | #define PIN_VAL_LOW (0 << PIN_VAL_SHIFT) | |
| 76 | #define PIN_VAL_HIGH (1 << PIN_VAL_SHIFT) | |
| 77 | ||
| 78 | /* Shortcuts. Use these instead of separate DIR and VAL. */ | |
| 79 | #define PIN_INPUT PIN_DIR_INPUT | |
| 80 | #define PIN_OUTPUT_LOW (PIN_DIR_OUTPUT | PIN_VAL_LOW) | |
| 81 | #define PIN_OUTPUT_HIGH (PIN_DIR_OUTPUT | PIN_VAL_HIGH) | |
| 82 | ||
| 83 | /* | |
| 84 | * These are the same as the ones above, but should make more sense to the | |
| 85 | * reader when seen along with a setting a pin to AF mode. | |
| 86 | */ | |
| 87 | #define PIN_SLPM_INPUT PIN_INPUT | |
| 88 | #define PIN_SLPM_OUTPUT_LOW PIN_OUTPUT_LOW | |
| 89 | #define PIN_SLPM_OUTPUT_HIGH PIN_OUTPUT_HIGH | |
| 90 | ||
| 378be066 RV |
91 | #define PIN_CFG_DEFAULT (PIN_PULL_NONE | PIN_SLPM_INPUT) |
| 92 | ||
| 93 | #define PIN_CFG(num, alt) \ | |
| 94 | (PIN_CFG_DEFAULT |\ | |
| 95 | (PIN_NUM(num) | PIN_##alt)) | |
| 96 | ||
| 97 | #define PIN_CFG_PULL(num, alt, pull) \ | |
| 98 | ((PIN_CFG_DEFAULT & ~PIN_PULL_MASK) |\ | |
| 99 | (PIN_NUM(num) | PIN_##alt | PIN_PULL_##pull)) | |
| 100 | ||
| 101 | extern int nmk_config_pin(pin_cfg_t cfg); | |
| 102 | extern int nmk_config_pins(pin_cfg_t *cfgs, int num); | |
| 103 | ||
| 104 | #endif |