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https://github.com/Telecominfraproject/OpenCellular.git
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b5bd5ed20d
Add pwm control module for emulation board. Signed-off-by: Dino Li <dino.li@ite.com.tw> BRANCH=none BUG=none TEST=console manual test, pwm channels output correctly. Change-Id: I6eb1a9e4fdcb9279e9d0cbd67f7a92afed21c889 Reviewed-on: https://chromium-review.googlesource.com/223921 Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Commit-Queue: Dino Li <dino.li@ite.com.tw> Tested-by: Dino Li <dino.li@ite.com.tw>
90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* IT8380 development board configuration */
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#include "common.h"
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#include "console.h"
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#include "gpio.h"
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#include "hooks.h"
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#include "registers.h"
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#include "task.h"
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#include "util.h"
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#include "pwm.h"
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#include "pwm_chip.h"
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/* Test GPIO interrupt function that toggles one LED. */
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void test_interrupt(enum gpio_signal signal)
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{
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static int busy_state;
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/* toggle LED */
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busy_state = !busy_state;
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gpio_set_level(GPIO_BUSY_LED, busy_state);
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}
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#include "gpio_list.h"
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/* PWM channels. Must be in the exactly same order as in enum pwm_channel. */
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const struct pwm_t pwm_channels[] = {
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{0, 0},
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{1, PWM_CONFIG_ACTIVE_LOW},
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{2, 0},
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{3, PWM_CONFIG_ACTIVE_LOW},
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{4, 0},
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{5, PWM_CONFIG_ACTIVE_LOW},
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{6, 0},
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{7, PWM_CONFIG_ACTIVE_LOW},
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};
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BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
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/* Initialize board. */
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static void board_init(void)
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{
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gpio_enable_interrupt(GPIO_START_SW);
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}
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DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
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/*****************************************************************************/
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/* Console commands */
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void display_7seg(uint8_t val)
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{
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int i;
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static const uint8_t digits[16] = {
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0xc0, 0xf9, 0xa8, 0xb0,
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0x99, 0x92, 0x82, 0xf8,
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0x80, 0x98, 0x88, 0x83,
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0xc6, 0xa1, 0x86, 0x8e,
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};
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for (i = 0; i < 7; i++)
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gpio_set_level(GPIO_H_LED0 + i, digits[val >> 4] & (1 << i));
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for (i = 0; i < 7; i++)
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gpio_set_level(GPIO_L_LED0 + i, digits[val & 0xf] & (1 << i));
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}
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static int command_7seg(int argc, char **argv)
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{
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uint8_t val;
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char *e;
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if (argc != 2)
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return EC_ERROR_PARAM_COUNT;
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val = strtoi(argv[1], &e, 16);
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if (*e)
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return EC_ERROR_PARAM1;
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ccprintf("display 0x%02x\n", val);
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display_7seg(val);
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return EC_SUCCESS;
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}
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DECLARE_CONSOLE_COMMAND(seg7, command_7seg,
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"<hex>",
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"Print 8-bit value on 7-segment display",
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NULL);
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