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774171020b
This patch adds gpio driver supporting driver model for stm32f7 gpio. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Christophe KERELLO <christophe.kerello@st.com> [trini: Add depends on STM32] Signed-off-by: Tom Rini <trini@konsulko.com>
125 lines
2.3 KiB
C
125 lines
2.3 KiB
C
/*
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* (C) Copyright 2016
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* Vikas Manocha, <vikas.manocha@st.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _STM32_GPIO_H_
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#define _STM32_GPIO_H_
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enum stm32_gpio_port {
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STM32_GPIO_PORT_A = 0,
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STM32_GPIO_PORT_B,
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STM32_GPIO_PORT_C,
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STM32_GPIO_PORT_D,
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STM32_GPIO_PORT_E,
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STM32_GPIO_PORT_F,
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STM32_GPIO_PORT_G,
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STM32_GPIO_PORT_H,
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STM32_GPIO_PORT_I
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};
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enum stm32_gpio_pin {
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STM32_GPIO_PIN_0 = 0,
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STM32_GPIO_PIN_1,
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STM32_GPIO_PIN_2,
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STM32_GPIO_PIN_3,
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STM32_GPIO_PIN_4,
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STM32_GPIO_PIN_5,
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STM32_GPIO_PIN_6,
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STM32_GPIO_PIN_7,
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STM32_GPIO_PIN_8,
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STM32_GPIO_PIN_9,
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STM32_GPIO_PIN_10,
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STM32_GPIO_PIN_11,
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STM32_GPIO_PIN_12,
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STM32_GPIO_PIN_13,
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STM32_GPIO_PIN_14,
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STM32_GPIO_PIN_15
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};
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enum stm32_gpio_mode {
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STM32_GPIO_MODE_IN = 0,
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STM32_GPIO_MODE_OUT,
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STM32_GPIO_MODE_AF,
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STM32_GPIO_MODE_AN
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};
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enum stm32_gpio_otype {
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STM32_GPIO_OTYPE_PP = 0,
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STM32_GPIO_OTYPE_OD
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};
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enum stm32_gpio_speed {
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STM32_GPIO_SPEED_2M = 0,
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STM32_GPIO_SPEED_25M,
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STM32_GPIO_SPEED_50M,
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STM32_GPIO_SPEED_100M
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};
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enum stm32_gpio_pupd {
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STM32_GPIO_PUPD_NO = 0,
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STM32_GPIO_PUPD_UP,
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STM32_GPIO_PUPD_DOWN
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};
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enum stm32_gpio_af {
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STM32_GPIO_AF0 = 0,
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STM32_GPIO_AF1,
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STM32_GPIO_AF2,
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STM32_GPIO_AF3,
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STM32_GPIO_AF4,
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STM32_GPIO_AF5,
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STM32_GPIO_AF6,
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STM32_GPIO_AF7,
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STM32_GPIO_AF8,
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STM32_GPIO_AF9,
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STM32_GPIO_AF10,
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STM32_GPIO_AF11,
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STM32_GPIO_AF12,
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STM32_GPIO_AF13,
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STM32_GPIO_AF14,
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STM32_GPIO_AF15
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};
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struct stm32_gpio_dsc {
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enum stm32_gpio_port port;
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enum stm32_gpio_pin pin;
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};
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struct stm32_gpio_ctl {
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enum stm32_gpio_mode mode;
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enum stm32_gpio_otype otype;
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enum stm32_gpio_speed speed;
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enum stm32_gpio_pupd pupd;
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enum stm32_gpio_af af;
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};
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struct stm32_gpio_regs {
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u32 moder; /* GPIO port mode */
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u32 otyper; /* GPIO port output type */
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u32 ospeedr; /* GPIO port output speed */
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u32 pupdr; /* GPIO port pull-up/pull-down */
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u32 idr; /* GPIO port input data */
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u32 odr; /* GPIO port output data */
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u32 bsrr; /* GPIO port bit set/reset */
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u32 lckr; /* GPIO port configuration lock */
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u32 afr[2]; /* GPIO alternate function */
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};
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struct stm32_gpio_priv {
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struct stm32_gpio_regs *regs;
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};
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static inline unsigned stm32_gpio_to_port(unsigned gpio)
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{
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return gpio / 16;
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}
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static inline unsigned stm32_gpio_to_pin(unsigned gpio)
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{
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return gpio % 16;
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}
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#endif /* _STM32_GPIO_H_ */
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