Diff: source/hic_hal/maxim/max32620/gpio.c

Revision:

0:01f31e923fe2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/hic_hal/maxim/max32620/gpio.c	Tue Apr 07 12:55:42 2020 +0200
@@ -0,0 +1,113 @@
+/* CMSIS-DAP Interface Firmware
+ * Copyright (c) 2009-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "max32620.h"
+#include "clkman_regs.h"
+#include "gpio_regs.h"
+#include "IO_Config.h"
+#include "gpio.h"
+
+/******************************************************************************/
+void gpio_init(void)
+{
+    int i;
+    uint32_t out_mode;
+
+    // Ensure that the GPIO clock is enabled
+    if (MXC_CLKMAN->sys_clk_ctrl_6_gpio == MXC_S_CLKMAN_CLK_SCALE_DISABLED) {
+        MXC_CLKMAN->sys_clk_ctrl_6_gpio = MXC_S_CLKMAN_CLK_SCALE_DIV_1;
+    }
+
+    // All inputs readable
+    for (i = 0; i < MXC_GPIO_NUM_PORTS; i++) {
+        MXC_GPIO->in_mode[i] = 0x00000000;
+    }
+
+    // LED initial state off
+    MXC_GPIO->out_val[PIN_DAP_LED_PORT] |= (1 << PIN_DAP_LED_PIN);
+    MXC_GPIO->out_val[PIN_MSD_LED_PORT] |= (1 << PIN_MSD_LED_PIN);
+    MXC_GPIO->out_val[PIN_CDC_LED_PORT] |= (1 << PIN_CDC_LED_PIN);
+
+    // LED outputs
+    out_mode = MXC_GPIO->out_mode[PIN_DAP_LED_PORT];
+    out_mode &= ~(0xFU << (4 * PIN_DAP_LED_PIN));
+    out_mode |= (MXC_V_GPIO_OUT_MODE_OPEN_DRAIN << (4 * PIN_DAP_LED_PIN));
+    MXC_GPIO->out_mode[PIN_DAP_LED_PORT] = out_mode;
+
+    out_mode = MXC_GPIO->out_mode[PIN_MSD_LED_PORT];
+    out_mode &= ~(0xFU << (4 * PIN_MSD_LED_PIN));
+    out_mode |= (MXC_V_GPIO_OUT_MODE_OPEN_DRAIN << (4 * PIN_MSD_LED_PIN));
+    MXC_GPIO->out_mode[PIN_MSD_LED_PORT] = out_mode;
+
+    out_mode = MXC_GPIO->out_mode[PIN_CDC_LED_PORT];
+    out_mode &= ~(0xFU << (4 * PIN_CDC_LED_PIN));
+    out_mode |= (MXC_V_GPIO_OUT_MODE_OPEN_DRAIN << (4 * PIN_CDC_LED_PIN));
+    MXC_GPIO->out_mode[PIN_CDC_LED_PORT] = out_mode;
+
+    // Button input
+    out_mode = MXC_GPIO->out_mode[PIN_RESET_IN_NO_FWRD_PORT];
+    out_mode &= ~(0xFU << (4 * PIN_RESET_IN_NO_FWRD_PIN));
+    out_mode |= (MXC_V_GPIO_OUT_MODE_OPEN_DRAIN_WEAK_PULLUP << (4 * PIN_RESET_IN_NO_FWRD_PIN));
+    MXC_GPIO->out_mode[PIN_RESET_IN_NO_FWRD_PORT] = out_mode;
+    MXC_GPIO->out_val[PIN_RESET_IN_NO_FWRD_PORT] |= (0x1 << PIN_RESET_IN_NO_FWRD_PIN);
+}
+
+/******************************************************************************/
+void gpio_set_hid_led(gpio_led_state_t state)
+{
+    if (state == GPIO_LED_ON) {
+        MXC_CLRBIT(&MXC_GPIO->out_val[PIN_DAP_LED_PORT], PIN_DAP_LED_PIN);
+    } else {
+        MXC_SETBIT(&MXC_GPIO->out_val[PIN_DAP_LED_PORT], PIN_DAP_LED_PIN);
+    }
+}
+
+/******************************************************************************/
+void gpio_set_msc_led(gpio_led_state_t state)
+{
+    if (state == GPIO_LED_ON) {
+        MXC_CLRBIT(&MXC_GPIO->out_val[PIN_MSD_LED_PORT], PIN_MSD_LED_PIN);
+    } else {
+        MXC_SETBIT(&MXC_GPIO->out_val[PIN_MSD_LED_PORT], PIN_MSD_LED_PIN);
+    }
+}
+
+/******************************************************************************/
+void gpio_set_cdc_led(gpio_led_state_t state)
+{
+    if (state == GPIO_LED_ON) {
+        MXC_CLRBIT(&MXC_GPIO->out_val[PIN_CDC_LED_PORT], PIN_CDC_LED_PIN);
+    } else {
+        MXC_SETBIT(&MXC_GPIO->out_val[PIN_CDC_LED_PORT], PIN_CDC_LED_PIN);
+    }
+}
+
+/******************************************************************************/
+uint8_t gpio_get_reset_btn_no_fwrd(void)
+{
+    return !MXC_GETBIT(&MXC_GPIO->in_val[PIN_RESET_IN_NO_FWRD_PORT], PIN_RESET_IN_NO_FWRD_PIN);
+}
+
+/******************************************************************************/
+uint8_t gpio_get_reset_btn_fwrd(void)
+{
+    return 0;
+}
+
+/******************************************************************************/
+void gpio_set_board_power(bool powerEnabled)
+{
+}