3 * Yuri Tikhonov, Emcraft Systems, yur@emcraft.com
6 * Kamil Lulko, <kamil.lulko@gmail.com>
8 * SPDX-License-Identifier: GPL-2.0+
11 #ifndef _STM32_GPIO_H_
12 #define _STM32_GPIO_H_
14 #if (CONFIG_STM32_USART == 1)
15 #define STM32_GPIO_PORT_X STM32_GPIO_PORT_A
16 #define STM32_GPIO_PIN_TX STM32_GPIO_PIN_9
17 #define STM32_GPIO_PIN_RX STM32_GPIO_PIN_10
18 #define STM32_GPIO_USART STM32_GPIO_AF7
20 #elif (CONFIG_STM32_USART == 2)
21 #define STM32_GPIO_PORT_X STM32_GPIO_PORT_D
22 #define STM32_GPIO_PIN_TX STM32_GPIO_PIN_5
23 #define STM32_GPIO_PIN_RX STM32_GPIO_PIN_6
24 #define STM32_GPIO_USART STM32_GPIO_AF7
26 #elif (CONFIG_STM32_USART == 3)
27 #define STM32_GPIO_PORT_X STM32_GPIO_PORT_C
28 #define STM32_GPIO_PIN_TX STM32_GPIO_PIN_10
29 #define STM32_GPIO_PIN_RX STM32_GPIO_PIN_11
30 #define STM32_GPIO_USART STM32_GPIO_AF7
32 #elif (CONFIG_STM32_USART == 6)
33 #define STM32_GPIO_PORT_X STM32_GPIO_PORT_G
34 #define STM32_GPIO_PIN_TX STM32_GPIO_PIN_14
35 #define STM32_GPIO_PIN_RX STM32_GPIO_PIN_9
36 #define STM32_GPIO_USART STM32_GPIO_AF8
39 #define STM32_GPIO_PORT_X STM32_GPIO_PORT_A
40 #define STM32_GPIO_PIN_TX STM32_GPIO_PIN_9
41 #define STM32_GPIO_PIN_RX STM32_GPIO_PIN_10
42 #define STM32_GPIO_USART STM32_GPIO_AF7
46 enum stm32_gpio_port {
47 STM32_GPIO_PORT_A = 0,
77 enum stm32_gpio_mode {
78 STM32_GPIO_MODE_IN = 0,
84 enum stm32_gpio_otype {
85 STM32_GPIO_OTYPE_PP = 0,
89 enum stm32_gpio_speed {
90 STM32_GPIO_SPEED_2M = 0,
96 enum stm32_gpio_pupd {
97 STM32_GPIO_PUPD_NO = 0,
121 struct stm32_gpio_dsc {
122 enum stm32_gpio_port port;
123 enum stm32_gpio_pin pin;
126 struct stm32_gpio_ctl {
127 enum stm32_gpio_mode mode;
128 enum stm32_gpio_otype otype;
129 enum stm32_gpio_speed speed;
130 enum stm32_gpio_pupd pupd;
131 enum stm32_gpio_af af;
134 struct stm32_gpio_regs {
135 u32 moder; /* GPIO port mode */
136 u32 otyper; /* GPIO port output type */
137 u32 ospeedr; /* GPIO port output speed */
138 u32 pupdr; /* GPIO port pull-up/pull-down */
139 u32 idr; /* GPIO port input data */
140 u32 odr; /* GPIO port output data */
141 u32 bsrr; /* GPIO port bit set/reset */
142 u32 lckr; /* GPIO port configuration lock */
143 u32 afr[2]; /* GPIO alternate function */
146 struct stm32_gpio_priv {
147 struct stm32_gpio_regs *regs;
150 static inline unsigned stm32_gpio_to_port(unsigned gpio)
155 static inline unsigned stm32_gpio_to_pin(unsigned gpio)
160 #endif /* _STM32_GPIO_H_ */