Diff: source/hic_hal/nxp/lpc4322/gpio.c

Revision:

0:01f31e923fe2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/hic_hal/nxp/lpc4322/gpio.c	Tue Apr 07 12:55:42 2020 +0200
@@ -0,0 +1,128 @@
+/**
+ * @file    gpio.c
+ * @brief
+ *
+ * DAPLink Interface Firmware
+ * Copyright (c) 2009-2016, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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 "LPC43xx.h"
+#include "lpc43xx_scu.h"
+#include "gpio.h"
+#include "compiler.h"
+#include "DAP_config.h" // For the nRESET and RESET_TXE port/pin info
+#include "IO_Config.h"
+
+BOOL gpio_reset_pin_is_input  = __TRUE;
+
+// Connected LED            P1_1: GPIO0[8]
+#define LED_CONNECTED_PORT  0
+#define LED_CONNECTED_BIT   8
+
+// LPC43xx peripheral register bit masks (used by macros)
+#define CCU_CLK_CFG_RUN     (1UL << 0)
+#define CCU_CLK_CFG_AUTO    (1UL << 1)
+#define CCU_CLK_STAT_RUN    (1UL << 0)
+
+static void busy_wait(uint32_t cycles)
+{
+    volatile uint32_t i;
+    i = cycles;
+
+    while (i > 0) {
+        i--;
+    }
+}
+
+void gpio_init(void)
+{
+    /* Enable clock and init GPIO outputs */
+    LPC_CCU1->CLK_M4_GPIO_CFG = CCU_CLK_CFG_AUTO | CCU_CLK_CFG_RUN;
+
+    while (!(LPC_CCU1->CLK_M4_GPIO_STAT & CCU_CLK_STAT_RUN));
+
+    /* Configure I/O pins: function number, input buffer enabled,  */
+    /*                     no pull-up/down                         */
+    scu_pinmux(1, 1, GPIO_NOPULL, FUNC0);   /* LED:      GPIO0[8]  */
+    scu_pinmux(2, 11, GPIO_NOPULL, FUNC0);  /* ISPCTRL:  GPIO1[11]  */
+    scu_pinmux(2, 5, GPIO_PUP,    FUNC4);   /* nRESET:    GPIO5[5] */
+    scu_pinmux(2, 6, GPIO_NOPULL, FUNC4);   /* nRESET_OE: GPIO5[6] */
+    /* Configure: LED as output (turned off) */
+    LPC_GPIO_PORT->CLR[LED_CONNECTED_PORT]  = (1 << LED_CONNECTED_BIT);
+    LPC_GPIO_PORT->DIR[LED_CONNECTED_PORT] |= (1 << LED_CONNECTED_BIT);
+    /* Configure: ISPCTRL as output and high */
+    LPC_GPIO_PORT->SET[ISPCTRL_PORT]  = (1 << ISPCTRL_BIT);
+    LPC_GPIO_PORT->DIR[ISPCTRL_PORT] |= (1 << ISPCTRL_BIT);
+    /* configure Reset Button as input, Reset Output Enable as output LOW */
+    LPC_GPIO_PORT->DIR[PORT_nRESET]    &= ~(1 << PIN_nRESET_IN_BIT);
+    LPC_GPIO_PORT->CLR[PORT_RESET_TXE]  = (1 << PIN_RESET_TXE_IN_BIT);
+    LPC_GPIO_PORT->DIR[PORT_RESET_TXE] |= (1 << PIN_RESET_TXE_IN_BIT);
+    /* Use Pin Interrupt 0 */
+    LPC_SCU->PINTSEL0 &= ~0xff;
+    LPC_SCU->PINTSEL0 |= (PORT_nRESET << 5) | (PIN_nRESET_IN_BIT);
+
+    busy_wait(10000);
+}
+
+void gpio_set_hid_led(gpio_led_state_t state)
+{
+    if (state) {
+        LPC_GPIO_PORT->SET[LED_CONNECTED_PORT] = (1 << LED_CONNECTED_BIT);
+    } else {
+        LPC_GPIO_PORT->CLR[LED_CONNECTED_PORT] = (1 << LED_CONNECTED_BIT);
+    }
+}
+
+void gpio_set_cdc_led(gpio_led_state_t state)
+{
+    if (state) {
+        LPC_GPIO_PORT->SET[LED_CONNECTED_PORT] = (1 << LED_CONNECTED_BIT);
+    } else {
+        LPC_GPIO_PORT->CLR[LED_CONNECTED_PORT] = (1 << LED_CONNECTED_BIT);
+    }
+}
+
+void gpio_set_msc_led(gpio_led_state_t state)
+{
+    if (state) {
+        LPC_GPIO_PORT->SET[LED_CONNECTED_PORT] = (1 << LED_CONNECTED_BIT);
+    } else {
+        LPC_GPIO_PORT->CLR[LED_CONNECTED_PORT] = (1 << LED_CONNECTED_BIT);
+    }
+}
+
+void gpio_set_isp_pin(uint8_t state)
+{
+    if (state) {
+        LPC_GPIO_PORT->SET[ISPCTRL_PORT] = (1 << ISPCTRL_BIT);
+    } else {
+        LPC_GPIO_PORT->CLR[ISPCTRL_PORT] = (1 << ISPCTRL_BIT);
+    }
+}
+
+uint8_t gpio_get_reset_btn_no_fwrd(void)
+{
+    return LPC_GPIO_PORT->W[PORT_nRESET * 32 + PIN_nRESET_IN_BIT] ? 0 : 1;
+}
+
+uint8_t gpio_get_reset_btn_fwrd(void)
+{
+    return 0;
+}
+
+void gpio_set_board_power(bool powerEnabled)
+{
+}