diff options
Diffstat (limited to 'include/asm-arm/arch-db8500/gpio.h')
| -rw-r--r-- | include/asm-arm/arch-db8500/gpio.h | 526 |
1 files changed, 526 insertions, 0 deletions
diff --git a/include/asm-arm/arch-db8500/gpio.h b/include/asm-arm/arch-db8500/gpio.h new file mode 100644 index 000000000..fbff7fcb6 --- /dev/null +++ b/include/asm-arm/arch-db8500/gpio.h @@ -0,0 +1,526 @@ +/* + * Copyright (C) ST-Ericsson SA 2009 + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#ifndef _MOP500_GPIO_h +#define _MOP500_GPIO_h + +#include <asm/types.h> +#include <asm/io.h> +#include <asm/errno.h> + +#include <asm/arch/common.h> + +#define GPIO_TOTAL_PINS 268 + +#define GPIO_PINS_PER_BLOCK 32 +#define GPIO_BLOCKS_COUNT (GPIO_TOTAL_PINS/GPIO_PINS_PER_BLOCK +1) +#define GPIO_BLOCK(pin) ( ( ( pin + GPIO_PINS_PER_BLOCK ) >> 5) - 1 ) + + +struct gpio_register { + u32 gpio_dat; /* GPIO data register *//*0x000 */ + u32 gpio_dats; /* GPIO data Set register *//*0x004 */ + u32 gpio_datc; /* GPIO data Clear register *//*0x008 */ + u32 gpio_pdis; /* GPIO Pull disable register *//*0x00C */ + u32 gpio_dir; /* GPIO data direction register *//*0x010 */ + u32 gpio_dirs; /* GPIO data dir Set register *//*0x014 */ + u32 gpio_dirc; /* GPIO data dir Clear register *//*0x018 */ + u32 gpio_slpm; /* GPIO Sleep mode register *//*0x01C */ + u32 gpio_afsa; /* GPIO AltFun A Select reg *//*0x020 */ + u32 gpio_afsb; /* GPIO AltFun B Select reg *//*0x024 */ + u32 gpio_lowemi; /* GPIO low EMI Select reg *//*0x028 */ + u32 reserved_1[(0x040 - 0x02C) >> 2]; /*0x028-0x3C Reserved*/ + u32 gpio_rimsc; /* GPIO rising edge intr set/clear *//*0x040 */ + u32 gpio_fimsc; /* GPIO falling edge interrupt set/clear register *//*0x044 */ + u32 gpio_mis; /* GPIO masked interrupt status register *//*0x048 */ + u32 gpio_ic; /* GPIO Interrupt Clear register *//*0x04C */ + u32 gpio_rwimsc; /* GPIO Rising-edge Wakeup IMSC register *//*0x050 */ + u32 gpio_fwimsc; /* GPIO Falling-edge Wakeup IMSC register *//*0x054 */ + u32 gpio_wks; /* GPIO Wakeup Status register *//*0x058 */ +}; + +/* Error values returned by functions */ +typedef enum { + GPIO_OK = 0, /* (0) */ + GPIO_UNSUPPORTED_HW = -2, /* NOMADIK_UNSUPPORTED_HW, (-2) */ + GPIO_UNSUPPORTED_FEATURE = -3, /* NOMADIK_UNSUPPORTED_FEATURE, (-3) */ + GPIO_INVALID_PARAMETER = -4, /* NOMADIK_INVALID_PARAMETER, (-4) */ + GPIO_REQUEST_NOT_APPLICABLE = -5, /* NOMADIK_REQUEST_NOT_APPLICABLE, (-5) */ + GPIO_REQUEST_PENDING = -6, /* NOMADIK_REQUEST_PENDING, (-6) */ + GPIO_NOT_CONFIGURED = -7, /* NOMADIK_NOT_CONFIGURED, (-7) */ + GPIO_INTERNAL_ERROR = -8, /* NOMADIK_INTERNAL_ERROR, (-8) */ + GPIO_INTERNAL_EVENT = 1, /* NOMADIK_INTERNAL_EVENT,*/ + GPIO_REMAINING_EVENT = 2, /* NOMADIK_REMAINING_PENDING_EVENTS,*/ + GPIO_NO_MORE_PENDING_EVENT = 3, /* NOMADIK_NO_MORE_PENDING_EVENT,*/ + GPIO_INVALID_CLIENT = -25, + GPIO_INVALID_PIN = -26, + GPIO_PIN_BUSY = -27, + GPIO_PIN_NOT_ALLOCATED = -28, + GPIO_WRONG_CLIENT = -29, + GPIO_UNSUPPORTED_ALTFUNC = -30, + +} gpio_error; + +/*GPIO DEVICE ID */ +typedef enum { + GPIO_DEVICE_ID_0, + GPIO_DEVICE_ID_1, + GPIO_DEVICE_ID_2, + GPIO_DEVICE_ID_3, + GPIO_DEVICE_ID_INVALID +} gpio_device_id; + +/* + * Pin description To be used in SOFTWARE mode: refers to a pin. + */ +typedef enum { + GPIO_PIN_0, + GPIO_PIN_1, + GPIO_PIN_2, + GPIO_PIN_3, + GPIO_PIN_4, + GPIO_PIN_5, + GPIO_PIN_6, + GPIO_PIN_7, + GPIO_PIN_8, + GPIO_PIN_9, + GPIO_PIN_10, + GPIO_PIN_11, + GPIO_PIN_12, + GPIO_PIN_13, + GPIO_PIN_14, + GPIO_PIN_15, + GPIO_PIN_16, + GPIO_PIN_17, + GPIO_PIN_18, + GPIO_PIN_19, + GPIO_PIN_20, + GPIO_PIN_21, + GPIO_PIN_22, + GPIO_PIN_23, + GPIO_PIN_24, + GPIO_PIN_25, + GPIO_PIN_26, + GPIO_PIN_27, + GPIO_PIN_28, + GPIO_PIN_29, + GPIO_PIN_30, + GPIO_PIN_31, + GPIO_PIN_32, + GPIO_PIN_33, + GPIO_PIN_34, + GPIO_PIN_35, + GPIO_PIN_36, + GPIO_PIN_37, + GPIO_PIN_38, + GPIO_PIN_39, + GPIO_PIN_40, + GPIO_PIN_41, + GPIO_PIN_42, + GPIO_PIN_43, + GPIO_PIN_44, + GPIO_PIN_45, + GPIO_PIN_46, + GPIO_PIN_47, + GPIO_PIN_48, + GPIO_PIN_49, + GPIO_PIN_50, + GPIO_PIN_51, + GPIO_PIN_52, + GPIO_PIN_53, + GPIO_PIN_54, + GPIO_PIN_55, + GPIO_PIN_56, + GPIO_PIN_57, + GPIO_PIN_58, + GPIO_PIN_59, + GPIO_PIN_60, + GPIO_PIN_61, + GPIO_PIN_62, + GPIO_PIN_63, + GPIO_PIN_64, + GPIO_PIN_65, + GPIO_PIN_66, + GPIO_PIN_67, + GPIO_PIN_68, + GPIO_PIN_69, + GPIO_PIN_70, + GPIO_PIN_71, + GPIO_PIN_72, + GPIO_PIN_73, + GPIO_PIN_74, + GPIO_PIN_75, + GPIO_PIN_76, + GPIO_PIN_77, + GPIO_PIN_78, + GPIO_PIN_79, + GPIO_PIN_80, + GPIO_PIN_81, + GPIO_PIN_82, + GPIO_PIN_83, + GPIO_PIN_84, + GPIO_PIN_85, + GPIO_PIN_86, + GPIO_PIN_87, + GPIO_PIN_88, + GPIO_PIN_89, + GPIO_PIN_90, + GPIO_PIN_91, + GPIO_PIN_92, + GPIO_PIN_93, + GPIO_PIN_94, + GPIO_PIN_95, + GPIO_PIN_96, + GPIO_PIN_97, + GPIO_PIN_98, + GPIO_PIN_99, + GPIO_PIN_100, + GPIO_PIN_101, + GPIO_PIN_102, + GPIO_PIN_103, + GPIO_PIN_104, + GPIO_PIN_105, + GPIO_PIN_106, + GPIO_PIN_107, + GPIO_PIN_108, + GPIO_PIN_109, + GPIO_PIN_110, + GPIO_PIN_111, + GPIO_PIN_112, + GPIO_PIN_113, + GPIO_PIN_114, + GPIO_PIN_115, + GPIO_PIN_116, + GPIO_PIN_117, + GPIO_PIN_118, + GPIO_PIN_119, + GPIO_PIN_120, + GPIO_PIN_121, + GPIO_PIN_122, + GPIO_PIN_123, + GPIO_PIN_124, + GPIO_PIN_125, + GPIO_PIN_126, + GPIO_PIN_127, + GPIO_PIN_128, + GPIO_PIN_129, + GPIO_PIN_130, + GPIO_PIN_131, + GPIO_PIN_132, + GPIO_PIN_133, + GPIO_PIN_134, + GPIO_PIN_135, + GPIO_PIN_136, + GPIO_PIN_137, + GPIO_PIN_138, + GPIO_PIN_139, + GPIO_PIN_140, + GPIO_PIN_141, + GPIO_PIN_142, + GPIO_PIN_143, + GPIO_PIN_144, + GPIO_PIN_145, + GPIO_PIN_146, + GPIO_PIN_147, + GPIO_PIN_148, + GPIO_PIN_149, + GPIO_PIN_150, + GPIO_PIN_151, + GPIO_PIN_152, + GPIO_PIN_153, + GPIO_PIN_154, + GPIO_PIN_155, + GPIO_PIN_156, + GPIO_PIN_157, + GPIO_PIN_158, + GPIO_PIN_159, + GPIO_PIN_160, + GPIO_PIN_161, + GPIO_PIN_162, + GPIO_PIN_163, + GPIO_PIN_164, + GPIO_PIN_165, + GPIO_PIN_166, + GPIO_PIN_167, + GPIO_PIN_168, + GPIO_PIN_169, + GPIO_PIN_170, + GPIO_PIN_171, + GPIO_PIN_172, + GPIO_PIN_173, + GPIO_PIN_174, + GPIO_PIN_175, + GPIO_PIN_176, + GPIO_PIN_177, + GPIO_PIN_178, + GPIO_PIN_179, + GPIO_PIN_180, + GPIO_PIN_181, + GPIO_PIN_182, + GPIO_PIN_183, + GPIO_PIN_184, + GPIO_PIN_185, + GPIO_PIN_186, + GPIO_PIN_187, + GPIO_PIN_188, + GPIO_PIN_189, + GPIO_PIN_190, + GPIO_PIN_191, + GPIO_PIN_192, + GPIO_PIN_193, + GPIO_PIN_194, + GPIO_PIN_195, + GPIO_PIN_196, + GPIO_PIN_197, + GPIO_PIN_198, + GPIO_PIN_199, + GPIO_PIN_200, + GPIO_PIN_201, + GPIO_PIN_202, + GPIO_PIN_203, + GPIO_PIN_204, + GPIO_PIN_205, + GPIO_PIN_206, + GPIO_PIN_207, + GPIO_PIN_208, + GPIO_PIN_209, + GPIO_PIN_210, + GPIO_PIN_211, + GPIO_PIN_212, + GPIO_PIN_213, + GPIO_PIN_214, + GPIO_PIN_215, + GPIO_PIN_216, + GPIO_PIN_217, + GPIO_PIN_218, + GPIO_PIN_219, + GPIO_PIN_220, + GPIO_PIN_221, + GPIO_PIN_222, + GPIO_PIN_223, + GPIO_PIN_224, + GPIO_PIN_225, + GPIO_PIN_226, + GPIO_PIN_227, + GPIO_PIN_228, + GPIO_PIN_229, + GPIO_PIN_230, + GPIO_PIN_231, + GPIO_PIN_232, + GPIO_PIN_233, + GPIO_PIN_234, + GPIO_PIN_235, + GPIO_PIN_236, + GPIO_PIN_237, + GPIO_PIN_238, + GPIO_PIN_239, + GPIO_PIN_240, + GPIO_PIN_241, + GPIO_PIN_242, + GPIO_PIN_243, + GPIO_PIN_244, + GPIO_PIN_245, + GPIO_PIN_246, + GPIO_PIN_247, + GPIO_PIN_248, + GPIO_PIN_249, + GPIO_PIN_250, + GPIO_PIN_251, + GPIO_PIN_252, + GPIO_PIN_253, + GPIO_PIN_254, + GPIO_PIN_255, + GPIO_PIN_256, + GPIO_PIN_257, + GPIO_PIN_258, + GPIO_PIN_259, + GPIO_PIN_260, + GPIO_PIN_261, + GPIO_PIN_262, + GPIO_PIN_263, + GPIO_PIN_264, + GPIO_PIN_265, + GPIO_PIN_266, + GPIO_PIN_267 +} gpio_pin; + +/* + * Alternate Function: + * refered in altfun_table to pointout particular altfun to be enabled + * when using GPIO_ALT_FUNCTION A/B/C enable/disable operation + */ +typedef enum { + GPIO_ALT_UART_0_MODEM, + GPIO_ALT_UART_0_NO_MODEM, + GPIO_ALT_UART_1, + GPIO_ALT_UART_2, + GPIO_ALT_I2C_0, + GPIO_ALT_I2C_1, + GPIO_ALT_I2C_2, + GPIO_ALT_I2C_3, + GPIO_ALT_MSP_0, + GPIO_ALT_MSP_1, + GPIO_ALT_MSP_2, + GPIO_ALT_MSP_3, + GPIO_ALT_MSP_4, + GPIO_ALT_MSP_5, + GPIO_ALT_SSP_0, + GPIO_ALT_SSP_1, + GPIO_ALT_MM_CARD0, + GPIO_ALT_SD_CARD0, + GPIO_ALT_DMA_0, + GPIO_ALT_DMA_1, + GPIO_ALT_HSI0, + GPIO_ALT_CCIR656_INPUT, + GPIO_ALT_CCIR656_OUTPUT, + GPIO_ALT_LCD_PANEL, + GPIO_ALT_MDIF, + GPIO_ALT_SDRAM, + GPIO_ALT_HAMAC_AUDIO_DBG, + GPIO_ALT_HAMAC_VIDEO_DBG, + GPIO_ALT_CLOCK_RESET, + GPIO_ALT_TSP, + GPIO_ALT_IRDA, + GPIO_ALT_USB_MINIMUM, + GPIO_ALT_USB_I2C, + GPIO_ALT_OWM, + GPIO_ALT_PWL, + GPIO_ALT_FSMC, + GPIO_ALT_COMP_FLASH, + GPIO_ALT_SRAM_NOR_FLASH, + GPIO_ALT_FSMC_ADDLINE_0_TO_15, + GPIO_ALT_SCROLL_KEY, + GPIO_ALT_MSHC, + GPIO_ALT_HPI, + GPIO_ALT_USB_OTG, + GPIO_ALT_SDIO, + GPIO_ALT_HSMMC, + GPIO_ALT_FSMC_ADD_DATA_0_TO_25, + GPIO_ALT_HSI1, + GPIO_ALT_NOR, + GPIO_ALT_NAND, + GPIO_ALT_KEYPAD, + GPIO_ALT_VPIP, + GPIO_ALT_CAM, + GPIO_ALT_CCP1, + GPIO_ALT_EMMC, + GPIO_ALT_POP_EMMC, + GPIO_ALT_SPI_0, + GPIO_ALT_SPI_1, + GPIO_ALT_SPI_2, + GPIO_ALT_SPI_3, + GPIO_ALT_FUNMAX /* Add new alt func before this */ +} gpio_alt_function; + +/* Defines pin assignment(Software mode or Alternate mode) */ +typedef enum { + GPIO_MODE_LEAVE_UNCHANGED, /* Parameter will be ignored by the function. */ + GPIO_MODE_SOFTWARE, /* Pin connected to GPIO (SW controlled) */ + GPIO_ALTF_A, /* Pin connected to alternate function 1 (HW periph 1) */ + GPIO_ALTF_B, /* Pin connected to alternate function 2 (HW periph 2) */ + GPIO_ALTF_C, /* Pin connected to alternate function 3 (HW periph 3) */ + GPIO_ALTF_FIND, /* Pin connected to alternate function 3 (HW periph 3) */ + GPIO_ALTF_DISABLE /* Pin connected to alternate function 3 (HW periph 3) */ +} gpio_mode; + +/* Defines GPIO pin direction */ +typedef enum { + GPIO_DIR_LEAVE_UNCHANGED, /* Parameter will be ignored by the function. */ + GPIO_DIR_INPUT, /* GPIO set as input */ + GPIO_DIR_OUTPUT /* GPIO set as output */ +} gpio_direction; + +/* Interrupt trigger mode */ +typedef enum { + GPIO_TRIG_LEAVE_UNCHANGED, /* Parameter will be ignored by the function */ + GPIO_TRIG_DISABLE, /* Triggers no IT */ + GPIO_TRIG_RISING_EDGE, /* Triggers an IT on a rising edge */ + GPIO_TRIG_FALLING_EDGE, /* Triggers an IT on a falling edge */ + GPIO_TRIG_BOTH_EDGES, /* Triggers an IT on a rising and a falling edge */ + GPIO_TRIG_HIGH_LEVEL, /* Triggers an IT on a high level */ + GPIO_TRIG_LOW_LEVEL /* Triggers an IT on a low level */ +} gpio_trig; /* Interrupt trigger mode, or disable */ + +/* Configuration parameters for one GPIO pin.*/ +typedef struct { + gpio_mode mode; /* Defines mode (SOFTWARE or Alternate). */ + gpio_direction direction; /* Define pin direction (in SOFTWARE mode only). */ + gpio_trig trig; /* Interrupt trigger (in SOFTWARE mode only) */ + char *dev_name; /* Name of client driver who owns the gpio pin */ +} gpio_config; + +/* GPIO pin data*/ +typedef enum { + GPIO_DATA_LOW, /* GPIO pin status is low. */ + GPIO_DATA_HIGH /* GPIO pin status is high. */ +} gpio_data; + +/* GPIO behaviour in sleep mode */ +typedef enum { + GPIO_SLEEP_MODE_LEAVE_UNCHANGED, /* Parameter will be ignored by the function. */ + GPIO_SLEEP_MODE_INPUT_DEFAULTVOLT, /* GPIO is an input with pull up/down enabled + when in sleep mode. */ + GPIO_SLEEP_MODE_CONTROLLED_BY_GPIO /* GPIO pin is controlled by GPIO IP. So mode, + direction and data values for GPIO pin in + sleep mode are determined by configuration + set to GPIO pin before entering to sleep mode. */ +} gpio_sleep_mode; + +/* GPIO ability to wake the system up from sleep mode.*/ +typedef enum { + GPIO_WAKE_LEAVE_UNCHANGED, /* Parameter will be ignored by the function. */ + GPIO_WAKE_DISABLE, /* GPIO will not wake the system from sleep mode. */ + GPIO_WAKE_LOW_LEVEL, /* GPIO will wake the system up on a LOW level. */ + GPIO_WAKE_HIGH_LEVEL, /* GPIO will wake the system up on a HIGH level. */ + GPIO_WAKE_RISING_EDGE, /* GPIO will wake the system up on a RISING edge. */ + GPIO_WAKE_FALLING_EDGE, /* GPIO will wake the system up on a FALLING edge. */ + GPIO_WAKE_BOTH_EDGES /* GPIO will wake the system up on both RISING and FALLING edge. */ +} gpio_wake; + +/* Configuration parameters for one GPIO pin in sleep mode.*/ +typedef struct { + gpio_sleep_mode sleep_mode; /* GPIO behaviour in sleep mode. */ + gpio_wake wake; /* GPIO ability to wake up the system. */ +} gpio_sleep_config; + +/*------------------------------------------------------------------------ + * Functions declaration + * refer ./Documentation/arm/STM-Nomadik/gpio_user_guide.txt + *----------------------------------------------------------------------*/ + +extern gpio_error gpio_setpinconfig(gpio_pin pin_id, gpio_config * pin_config); +extern gpio_error gpio_resetpinconfig(gpio_pin pin_id, char *dev_name); +extern int gpio_writepin(gpio_pin pin_id, gpio_data value, char *dev_name); +extern int gpio_readpin(gpio_pin pin_id, gpio_data * value); +extern int gpio_altfuncenable(gpio_alt_function altfunc, + char *dev_name); +extern int gpio_altfuncdisable(gpio_alt_function altfunc, + char *dev_name); + +struct gpio_altfun_data { + u16 altfun; + u16 start; + u16 end; + t_bool cont; + u8 type; +}; + +#endif /* __INC_GPIO_H */ |