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osd-contiki/platform/galileo/drivers/galileo-pinmux.c

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/*
* Copyright (C) 2015-2016, Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "galileo-pinmux.h"
#include <assert.h>
#include "gpio.h"
#include "gpio-pcal9535a.h"
#include "i2c.h"
#include "pwm-pca9685.h"
#include <stdio.h>
typedef enum {
GALILEO_PINMUX_FUNC_A,
GALILEO_PINMUX_FUNC_B,
GALILEO_PINMUX_FUNC_C,
GALILEO_PINMUX_FUNC_D
} GALILEO_PINMUX_FUNC;
#define GPIO_PCAL9535A_0_I2C_ADDR 0x25
#define GPIO_PCAL9535A_1_I2C_ADDR 0x26
#define GPIO_PCAL9535A_2_I2C_ADDR 0x27
#define PWM_PCA9685_0_I2C_ADDR 0x47
#define PINMUX_NUM_FUNCS 4
#define PINMUX_NUM_PATHS 4
typedef enum {
NONE,
EXP0,
EXP1,
EXP2,
PWM0
} MUX_CHIP;
typedef enum {
PIN_LOW = 0x00,
PIN_HIGH = 0x01,
DISABLED = 0xFF
} PIN_LEVEL;
struct pin_config {
uint8_t pin_num;
GALILEO_PINMUX_FUNC func;
};
struct mux_pin {
MUX_CHIP chip;
uint8_t pin;
PIN_LEVEL level;
uint32_t cfg;
};
struct mux_path {
uint8_t io_pin;
GALILEO_PINMUX_FUNC func;
struct mux_pin path[PINMUX_NUM_PATHS];
};
struct pinmux_internal_data {
struct gpio_pcal9535a_data exp0;
struct gpio_pcal9535a_data exp1;
struct gpio_pcal9535a_data exp2;
struct pwm_pca9685_data pwm0;
};
static struct pinmux_internal_data data;
static struct mux_path galileo_pinmux_paths[GALILEO_NUM_PINS * PINMUX_NUM_FUNCS] = {
{0, GALILEO_PINMUX_FUNC_A, {
{ EXP1, 0, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* GPIO3 out */
{ EXP1, 1, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{0, GALILEO_PINMUX_FUNC_B, {
{ EXP1, 0, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO3 in */
{ EXP1, 1, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{0, GALILEO_PINMUX_FUNC_C, {
{ EXP1, 0, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* UART0_RXD */
{ EXP1, 1, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{0, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{1, GALILEO_PINMUX_FUNC_A, {
{ EXP1, 13, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO4 out */
{ EXP0, 12, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 13, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{1, GALILEO_PINMUX_FUNC_B, {
{ EXP1, 13, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO4 in */
{ EXP0, 12, PIN_HIGH, (QUARKX1000_GPIO_OUT)},
{ EXP0, 13, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{1, GALILEO_PINMUX_FUNC_C, {
{ EXP1, 13, PIN_HIGH, (QUARKX1000_GPIO_OUT)}, /* UART0_TXD */
{ EXP0, 12, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 13, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{1, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{2, GALILEO_PINMUX_FUNC_A, {
{ PWM0, 13, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* GPIO5 out */
{ EXP1, 2, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP1, 3, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{2, GALILEO_PINMUX_FUNC_B, {
{ PWM0, 13, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* GPIO5 in */
{ EXP1, 2, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP1, 3, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{2, GALILEO_PINMUX_FUNC_C, {
{ PWM0, 13, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* UART1_RXD */
{ EXP1, 2, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP1, 3, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{2, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{3, GALILEO_PINMUX_FUNC_A, {
{ PWM0, 0, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO6 out */
{ PWM0, 12, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 0, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 1, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{3, GALILEO_PINMUX_FUNC_B, {
{ PWM0, 0, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO6 in */
{ PWM0, 12, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 0, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP0, 1, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{3, GALILEO_PINMUX_FUNC_C, {
{ PWM0, 0, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* UART1_TXD */
{ PWM0, 12, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP0, 0, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 1, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{3, GALILEO_PINMUX_FUNC_D, {
{ PWM0, 0, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* PWM.LED1 */
{ PWM0, 12, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 0, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 1, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{4, GALILEO_PINMUX_FUNC_A, {
{ EXP1, 4, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO_SUS4 out */
{ EXP1, 5, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{4, GALILEO_PINMUX_FUNC_B, {
{ EXP1, 4, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* GPIO_SUS4 in */
{ EXP1, 5, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{4, GALILEO_PINMUX_FUNC_C, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{4, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{5, GALILEO_PINMUX_FUNC_A, {
{ PWM0, 2, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO8 (out) */
{ EXP0, 2, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 3, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{5, GALILEO_PINMUX_FUNC_B, {
{ PWM0, 2, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO8 (in) */
{ EXP0, 2, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP0, 3, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{5, GALILEO_PINMUX_FUNC_C, {
{ PWM0, 2, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* PWM.LED3 */
{ EXP0, 2, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 3, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{5, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{6, GALILEO_PINMUX_FUNC_A, {
{ PWM0, 4, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO9 (out) */
{ EXP0, 4, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 5, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{6, GALILEO_PINMUX_FUNC_B, {
{ PWM0, 4, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO9 (in) */
{ EXP0, 4, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP0, 5, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{6, GALILEO_PINMUX_FUNC_C, {
{ PWM0, 4, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* PWM.LED5 */
{ EXP0, 4, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 5, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{6, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{7, GALILEO_PINMUX_FUNC_A, {
{ EXP1, 6, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO_SUS0 (out) */
{ EXP1, 7, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{7, GALILEO_PINMUX_FUNC_B, {
{ EXP1, 6, PIN_LOW, (QUARKX1000_GPIO_IN ) }, /* GPIO_SUS0 (in) */
{ EXP1, 7, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{7, GALILEO_PINMUX_FUNC_C, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{7, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{8, GALILEO_PINMUX_FUNC_A, {
{ EXP1, 8, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO_SUS1 (out) */
{ EXP1, 9, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{8, GALILEO_PINMUX_FUNC_B, {
{ EXP1, 8, PIN_LOW, (QUARKX1000_GPIO_IN ) }, /* GPIO_SUS1 (in) */
{ EXP1, 9, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{8, GALILEO_PINMUX_FUNC_C, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{8, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{9, GALILEO_PINMUX_FUNC_A, {
{ PWM0, 6, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO_SUS2 (out) */
{ EXP0, 6, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 7, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{9, GALILEO_PINMUX_FUNC_B, {
{ PWM0, 6, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO_SUS2 (in) */
{ EXP0, 6, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP0, 7, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{9, GALILEO_PINMUX_FUNC_C, {
{ PWM0, 6, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* PWM.LED7 */
{ EXP0, 6, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 7, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{9, GALILEO_PINMUX_FUNC_C, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{10, GALILEO_PINMUX_FUNC_A, {
{ PWM0, 10, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO2 (out) */
{ EXP0, 10, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 11, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{10, GALILEO_PINMUX_FUNC_B, {
{ PWM0, 10, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO2 (in) */
{ EXP0, 10, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP0, 11, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{10, GALILEO_PINMUX_FUNC_C, {
{ PWM0, 10, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* PWM.LED11 */
{ EXP0, 10, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 11, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{10, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{11, GALILEO_PINMUX_FUNC_A, {
{ EXP1, 12, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO_SUS3 (out) */
{ PWM0, 8, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 8, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 9, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{11, GALILEO_PINMUX_FUNC_B, {
{ EXP1, 12, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO_SUS3 (in) */
{ PWM0, 8, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 8, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP0, 9, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{11, GALILEO_PINMUX_FUNC_C, {
{ EXP1, 12, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* PWM.LED9 */
{ PWM0, 8, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP0, 8, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 9, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{11, GALILEO_PINMUX_FUNC_D, {
{ EXP1, 12, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* SPI1_MOSI */
{ PWM0, 8, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 8, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 9, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{12, GALILEO_PINMUX_FUNC_A, {
{ EXP1, 10, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO7 (out) */
{ EXP1, 11, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{12, GALILEO_PINMUX_FUNC_B, {
{ EXP1, 10, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* GPIO7 (in) */
{ EXP1, 11, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{12, GALILEO_PINMUX_FUNC_C, {
{ EXP1, 10, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* SPI1_MISO */
{ EXP1, 11, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{12, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{13, GALILEO_PINMUX_FUNC_A, {
{ EXP1, 14, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO_SUS5 (out) */
{ EXP0, 14, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 15, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{13, GALILEO_PINMUX_FUNC_B, {
{ EXP1, 14, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* GPIO_SUS5 (in) */
{ EXP0, 14, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP0, 15, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{13, GALILEO_PINMUX_FUNC_C, {
{ EXP1, 14, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* SPI1_CLK */
{ EXP0, 14, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP0, 15, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{13, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{14, GALILEO_PINMUX_FUNC_A, {
{ EXP2, 0, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* EXP2.P0_0 (out)/ADC.IN0 */
{ EXP2, 1, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{14, GALILEO_PINMUX_FUNC_B, {
{ EXP2, 0, PIN_LOW, (QUARKX1000_GPIO_IN ) }, /* EXP2.P0_0 (in)/ADC.IN0 */
{ EXP2, 1, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{14, GALILEO_PINMUX_FUNC_C, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{14, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{15, GALILEO_PINMUX_FUNC_A, {
{ EXP2, 2, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* EXP2.P0_2 (out)/ADC.IN1 */
{ EXP2, 3, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{15, GALILEO_PINMUX_FUNC_B, {
{ EXP2, 2, PIN_LOW, (QUARKX1000_GPIO_IN ) }, /* EXP2.P0_2 (in)/ADC.IN1 */
{ EXP2, 3, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{15, GALILEO_PINMUX_FUNC_C, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{15, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{16, GALILEO_PINMUX_FUNC_A, {
{ EXP2, 4, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* EXP2.P0_4 (out)/ADC.IN2 */
{ EXP2, 5, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{16, GALILEO_PINMUX_FUNC_B, {
{ EXP2, 4, PIN_LOW, (QUARKX1000_GPIO_IN ) }, /* EXP2.P0_4 (in)/ADC.IN2 */
{ EXP2, 5, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{16, GALILEO_PINMUX_FUNC_C, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{16, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{17, GALILEO_PINMUX_FUNC_A, {
{ EXP2, 6, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* EXP2.P0_6 (out)/ADC.IN3 */
{ EXP2, 7, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{17, GALILEO_PINMUX_FUNC_B, {
{ EXP2, 6, PIN_LOW, (QUARKX1000_GPIO_IN ) }, /* EXP2.P0_6 (in)/ADC.IN3 */
{ EXP2, 7, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{17, GALILEO_PINMUX_FUNC_C, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{17, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{18, GALILEO_PINMUX_FUNC_A, {
{ PWM0, 14, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* EXP2.P1_0 (out)/ADC.IN4 */
{ EXP2, 12, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP2, 8, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP2, 9, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{18, GALILEO_PINMUX_FUNC_B, {
{ PWM0, 14, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* EXP2.P1_0 (in)/ADC.IN4 */
{ EXP2, 12, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP2, 8, PIN_LOW, (QUARKX1000_GPIO_IN ) },
{ EXP2, 9, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{18, GALILEO_PINMUX_FUNC_C, {
{ PWM0, 14, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* I2C SDA */
{ EXP2, 9, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP2, 12, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{18, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{19, GALILEO_PINMUX_FUNC_A, {
{ PWM0, 15, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* EXP2.P1_2 (out)/ADC.IN5 */
{ EXP2, 12, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP2, 10, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP2, 11, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{19, GALILEO_PINMUX_FUNC_B, {
{ PWM0, 15, PIN_LOW, (QUARKX1000_GPIO_OUT) }, /* EXP2.P1_2 (in)/ADC.IN5 */
{ EXP2, 12, PIN_HIGH, (QUARKX1000_GPIO_OUT) },
{ EXP2, 10, PIN_LOW, (QUARKX1000_GPIO_IN ) },
{ EXP2, 11, PIN_LOW, (QUARKX1000_GPIO_OUT) }}},
{19, GALILEO_PINMUX_FUNC_C, {
{ PWM0, 15, PIN_HIGH, (QUARKX1000_GPIO_OUT) }, /* I2C SCL */
{ EXP2, 11, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ EXP2, 12, PIN_LOW, (QUARKX1000_GPIO_OUT) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
{19, GALILEO_PINMUX_FUNC_D, {
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }, /* NONE */
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) },
{ NONE, 0, DISABLED, (QUARKX1000_GPIO_IN ) }}},
};
static int
galileo_pinmux_set_pin(uint8_t pin, GALILEO_PINMUX_FUNC func)
{
struct mux_path *mux_path;
uint8_t index, i;
if(pin >= GALILEO_NUM_PINS) {
return -1;
}
index = PINMUX_NUM_FUNCS * pin;
index += func;
mux_path = &galileo_pinmux_paths[index];
for(i = 0; i < PINMUX_NUM_PATHS; i++) {
struct gpio_pcal9535a_data *exp = NULL;
switch(mux_path->path[i].chip) {
case EXP0:
exp = &data.exp0;
break;
case EXP1:
exp = &data.exp1;
break;
case EXP2:
exp = &data.exp2;
break;
case PWM0:
if(pwm_pca9685_set_duty_cycle(&data.pwm0, mux_path->path[i].pin, mux_path->path[i].level ? 100 : 0) < 0) {
return -1;
}
continue;
case NONE:
continue;
}
assert(exp != NULL);
if(gpio_pcal9535a_write(exp, mux_path->path[i].pin, mux_path->path[i].level) < 0) {
return -1;
}
if(gpio_pcal9535a_config(exp, mux_path->path[i].pin, mux_path->path[i].cfg) < 0) {
return -1;
}
}
return 0;
}
static void
flatten_pin_num(galileo_pin_group_t grp, unsigned *pin)
{
if(grp == GALILEO_PIN_GRP_ANALOG) {
*pin += GALILEO_NUM_DIGITAL_PINS;
}
assert(*pin < GALILEO_NUM_PINS);
}
/* See galileo-gpio.c for the declaration of this function. */
int
galileo_brd_to_cpu_gpio_pin(unsigned pin, bool *sus)
{
static const int SUS = 0x100;
unsigned pins[GALILEO_NUM_PINS] = {
3, 4, 5, 6,
SUS | 4, 8, 9, SUS | 0,
SUS | 1, SUS | 2, 2, SUS | 3,
7, SUS | 5
};
int cpu_pin;
/* GPIOs in the analog pin space are implemented by EXP2, not the CPU. */
assert(pin < GALILEO_NUM_DIGITAL_PINS);
cpu_pin = pins[pin];
*sus = (cpu_pin & SUS) == SUS;
return cpu_pin & ~SUS;
}
void
galileo_pinmux_select_din(galileo_pin_group_t grp, unsigned pin)
{
bool sus;
int cpu_pin;
flatten_pin_num(grp, &pin);
assert(galileo_pinmux_set_pin(pin, GALILEO_PINMUX_FUNC_B) == 0);
cpu_pin = galileo_brd_to_cpu_gpio_pin(pin, &sus);
/* GPIO_SUS pins are currently unsupported. */
assert(!sus);
quarkX1000_gpio_config(cpu_pin, QUARKX1000_GPIO_IN);
}
void
galileo_pinmux_select_dout(galileo_pin_group_t grp, unsigned pin)
{
bool sus;
int cpu_pin;
flatten_pin_num(grp, &pin);
assert(galileo_pinmux_set_pin(pin, GALILEO_PINMUX_FUNC_A) == 0);
cpu_pin = galileo_brd_to_cpu_gpio_pin(pin, &sus);
/* GPIO_SUS pins are currently unsupported. */
assert(!sus);
quarkX1000_gpio_config(cpu_pin, QUARKX1000_GPIO_OUT);
}
void
galileo_pinmux_select_pwm(unsigned pin)
{
GALILEO_PINMUX_FUNC func = GALILEO_PINMUX_FUNC_C;
switch(pin) {
case 3:
func = GALILEO_PINMUX_FUNC_D;
break;
case 5:
case 6:
case 9:
case 10:
case 11:
break;
default:
fprintf(stderr, "%s: invalid pin: %d.\n", __FUNCTION__, pin);
halt();
}
assert(galileo_pinmux_set_pin(pin, func) == 0);
}
void
galileo_pinmux_select_serial(unsigned pin)
{
assert(pin < 4);
assert(galileo_pinmux_set_pin(pin, GALILEO_PINMUX_FUNC_C) == 0);
}
void
galileo_pinmux_select_i2c(void)
{
assert(galileo_pinmux_set_pin(18, GALILEO_PINMUX_FUNC_C) == 0);
assert(galileo_pinmux_set_pin(19, GALILEO_PINMUX_FUNC_C) == 0);
}
void
galileo_pinmux_select_spi(void)
{
assert(galileo_pinmux_set_pin(11, GALILEO_PINMUX_FUNC_D) == 0);
assert(galileo_pinmux_set_pin(12, GALILEO_PINMUX_FUNC_C) == 0);
assert(galileo_pinmux_set_pin(13, GALILEO_PINMUX_FUNC_C) == 0);
}
void
galileo_pinmux_select_analog(unsigned pin)
{
assert(pin < GALILEO_NUM_ANALOG_PINS);
pin += GALILEO_NUM_DIGITAL_PINS;
assert(galileo_pinmux_set_pin(pin, GALILEO_PINMUX_FUNC_B) == 0);
}
int
galileo_pinmux_initialize(void)
{
/* has to init after I2C master */
if(!quarkX1000_i2c_is_available()) {
return -1;
}
if(gpio_pcal9535a_init(&data.exp0, GPIO_PCAL9535A_0_I2C_ADDR) < 0) {
return -1;
}
if(gpio_pcal9535a_init(&data.exp1, GPIO_PCAL9535A_1_I2C_ADDR) < 0) {
return -1;
}
if(gpio_pcal9535a_init(&data.exp2, GPIO_PCAL9535A_2_I2C_ADDR) < 0) {
return -1;
}
if(pwm_pca9685_init(&data.pwm0, PWM_PCA9685_0_I2C_ADDR) < 0) {
return -1;
}
/* Activate default pinmux configuration. */
/* Some of the following lines are commented out due to the GPIO_SUS pins
* being currently unsupported.
*/
galileo_pinmux_select_serial(0);
galileo_pinmux_select_serial(1);
galileo_pinmux_select_dout(GALILEO_PIN_GRP_DIGITAL, 2);
galileo_pinmux_select_din(GALILEO_PIN_GRP_DIGITAL, 3);
/*galileo_pinmux_select_din(GALILEO_PIN_GRP_DIGITAL, 4);*/
galileo_pinmux_select_din(GALILEO_PIN_GRP_DIGITAL, 5);
galileo_pinmux_select_din(GALILEO_PIN_GRP_DIGITAL, 6);
/*galileo_pinmux_select_din(GALILEO_PIN_GRP_DIGITAL, 7);*/
/*galileo_pinmux_select_din(GALILEO_PIN_GRP_DIGITAL, 8);*/
/*galileo_pinmux_select_din(GALILEO_PIN_GRP_DIGITAL, 9);*/
galileo_pinmux_select_dout(GALILEO_PIN_GRP_DIGITAL, 10);
/*galileo_pinmux_select_din(GALILEO_PIN_GRP_DIGITAL, 11);*/
galileo_pinmux_select_dout(GALILEO_PIN_GRP_DIGITAL, 12);
/*galileo_pinmux_select_din(GALILEO_PIN_GRP_DIGITAL, 13);*/
galileo_pinmux_select_analog(0);
galileo_pinmux_select_analog(1);
galileo_pinmux_select_analog(2);
galileo_pinmux_select_analog(3);
galileo_pinmux_select_i2c();
return 0;
}
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