From b70416167b9abdcafacea81e9ef92c509360f735 Mon Sep 17 00:00:00 2001
From: Eug Krashtan <eug.krashtan@gmail.com>
Date: Sat, 28 Dec 2019 13:29:10 +0200
Subject: stm32f0: Remove hal based stm32f0 implementation

Signed-off-by: Eug Krashtan <eug.krashtan@gmail.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
---
 src/stm32f0/gpio.c | 141 -----------------------------------------------------
 1 file changed, 141 deletions(-)
 delete mode 100644 src/stm32f0/gpio.c

(limited to 'src/stm32f0/gpio.c')

diff --git a/src/stm32f0/gpio.c b/src/stm32f0/gpio.c
deleted file mode 100644
index a7849484..00000000
--- a/src/stm32f0/gpio.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- *  GPIO functions on STM32F042 boards.
- *
- *  Copyright (C) 2019 Eug Krashtan <eug.krashtan@gmail.com>
- *  This file may be distributed under the terms of the GNU GPLv3 license.
- *
- */
-
-#include "board/gpio.h" // gpio_out_setup
-#include "stm32f0xx_hal.h"
-#include "internal.h" // GPIO
-#include "board/irq.h" // irq_save
-#include "compiler.h" // ARRAY_SIZE
-#include "sched.h" // sched_shutdown
-#include "command.h" // shutdown
-
-DECL_ENUMERATION_RANGE("pin", "PA0", GPIO('A', 0), 11);
-DECL_ENUMERATION_RANGE("pin", "PB0", GPIO('B', 0), 9);
-DECL_ENUMERATION_RANGE("pin", "PF0", GPIO('F', 0), 2);
-
-GPIO_TypeDef *const digital_regs[] = {
-    GPIOA, GPIOB, GPIOC, 0, 0, GPIOF
-};
-
-// <port:4><pin:4>
-uint8_t const avail_pins[] = {
-    0x0 + 0x0, //PA0
-    0x0 + 0x1, //PA1
-#if !(CONFIG_SERIAL)
-    0x0 + 0x2, //PA2 - USART pins
-    0x0 + 0x3, //PA3
-#endif
-    0x0 + 0x4, //PA4
-    0x0 + 0x5, //PA5
-    0x0 + 0x6, //PA6
-    0x0 + 0x7, //PA7
-#if !(CONFIG_CANSERIAL)
-    0x0 + 0x9, //PA9 - but remapped in CAN mode to PA11,PA12
-    0x0 + 0xa, //PA10
-#endif
-    0x10 + 0x1, //PB1
-    0x10 + 0x8, //PB8
-    0x50 + 0x0, //PF0
-    0x50 + 0x1, //PF1
-};
-
-/****************************************************************
- * General Purpose Input Output (GPIO) pins
- ****************************************************************/
-
-static uint8_t
-gpio_check_pin(uint8_t pin)
-{
-    int i;
-    for(i=0; i<ARRAY_SIZE(avail_pins); i++) {
-        if (avail_pins[i] == pin)
-            return i;
-    }
-    return 0xFF;
-}
-
-struct gpio_out
-gpio_out_setup(uint8_t pin, uint8_t val)
-{
-    struct gpio_out g = { .pin=pin };
-    if (gpio_check_pin(pin) < 0xFF) {
-        gpio_out_reset(g, val);
-    } else {
-        shutdown("Not an output pin");
-    }
-    return g;
-}
-
-void
-gpio_out_reset(struct gpio_out g, uint8_t val)
-{
-    GPIO_InitTypeDef GPIO_InitStruct = {0};
-    GPIO_InitStruct.Pin = 1 << (g.pin % 16);
-    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
-    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
-    HAL_GPIO_Init(digital_regs[GPIO2PORT(g.pin)], &GPIO_InitStruct);
-    HAL_GPIO_WritePin(digital_regs[GPIO2PORT(g.pin)], 1 << (g.pin % 16), val);
-}
-
-void
-gpio_out_write(struct gpio_out g, uint8_t val)
-{
-    HAL_GPIO_WritePin(digital_regs[GPIO2PORT(g.pin)], 1 << (g.pin % 16), val);
-}
-
-struct gpio_in
-gpio_in_setup(uint8_t pin, int8_t pull_up)
-{
-    struct gpio_in g = { .pin=pin };
-    if (gpio_check_pin(pin) < 0xFF) {
-        gpio_in_reset(g, pull_up);
-    } else {
-        shutdown("Not an input pin");
-    }
-    return g;
-}
-
-void
-gpio_in_reset(struct gpio_in g, int8_t pull_up)
-{
-    irqstatus_t flag = irq_save();
-    GPIO_InitTypeDef GPIO_InitStruct = {0};
-    GPIO_InitStruct.Pin = 1 << (g.pin % 16);
-    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
-    GPIO_InitStruct.Pull = (pull_up)?GPIO_PULLUP:GPIO_NOPULL;
-    HAL_GPIO_Init(digital_regs[GPIO2PORT(g.pin)], &GPIO_InitStruct);
-    irq_restore(flag);
-}
-
-uint8_t
-gpio_in_read(struct gpio_in g)
-{
-    return HAL_GPIO_ReadPin(digital_regs[GPIO2PORT(g.pin)], 1 << (g.pin % 16));
-}
-
-void
-gpio_out_toggle_noirq(struct gpio_out g)
-{
-    HAL_GPIO_TogglePin(digital_regs[GPIO2PORT(g.pin)], 1 << (g.pin % 16));
-}
-
-void
-gpio_out_toggle(struct gpio_out g)
-{
-    irqstatus_t flag = irq_save();
-    gpio_out_toggle_noirq(g);
-    irq_restore(flag);
-}
-
-void gpio_init(void)
-{
-    /* GPIO Ports Clock Enable */
-    __HAL_RCC_GPIOA_CLK_ENABLE();
-    __HAL_RCC_GPIOB_CLK_ENABLE();
-    __HAL_RCC_GPIOF_CLK_ENABLE();
-}
-- 
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