software_i2c.c File Reference

#include <device/i2c_simple.h>
#include <gpio.h>
#include <soc/pinmux.h>
#include "i2c.h"

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Functions
static void	tegra_set_sda (unsigned int bus, int high)
static void	tegra_set_scl (unsigned int bus, int high)
static int	tegra_get_sda (unsigned int bus)
static int	tegra_get_scl (unsigned int bus)
void	tegra_software_i2c_init (unsigned int bus)
void	tegra_software_i2c_disable (unsigned int bus)

Variables
struct {
int   pinmux_func
gpio_t   sda
gpio_t   scl
}	pins []
static struct software_i2c_ops	tegra_ops

Function Documentation

tegra_get_scl()

static int tegra_get_scl ( unsigned int  bus )

static

Definition at line 47 of file software_i2c.c.

References gpio_get(), pins, and scl.

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tegra_get_sda()

static int tegra_get_sda ( unsigned int  bus )

static

Definition at line 42 of file software_i2c.c.

References gpio_get(), pins, and sda.

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tegra_set_scl()

static void tegra_set_scl ( unsigned int  bus, int  high  )

static

Definition at line 34 of file software_i2c.c.

References gpio_input_pullup(), gpio_output(), pins, and scl.

Referenced by tegra_software_i2c_init().

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tegra_set_sda()

static void tegra_set_sda ( unsigned int  bus, int  high  )

static

Definition at line 26 of file software_i2c.c.

References gpio_input_pullup(), gpio_output(), pins, and sda.

Referenced by tegra_software_i2c_init().

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tegra_software_i2c_disable()

void tegra_software_i2c_disable

(

unsigned int

bus

)

Definition at line 68 of file software_i2c.c.

References GPIO_MODE_SPIO, GPIO_PINMUX_SHIFT, gpio_set_mode(), NULL, pinmux_func, PINMUX_INPUT_ENABLE, pinmux_set_config(), pins, scl, sda, and software_i2c.

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tegra_software_i2c_init()

void tegra_software_i2c_init

(

unsigned int

bus

)

Definition at line 59 of file software_i2c.c.

References software_i2c, tegra_ops, tegra_set_scl(), and tegra_set_sda().

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Variable Documentation

pinmux_func

int pinmux_func

Definition at line 10 of file software_i2c.c.

Referenced by tegra_software_i2c_disable().

struct { ... } pins[]

Initial value:

= {
        [0]{.pinmux_func = PINMUX_GEN1_I2C_SCL_FUNC_I2C1,
            .sda = GPIO(C5), .scl = GPIO(C4)},
        [1]{.pinmux_func = PINMUX_GEN2_I2C_SCL_FUNC_I2C2,
            .sda = GPIO(T6), .scl = GPIO(T5)},
        [2]{.pinmux_func = PINMUX_CAM_I2C_SCL_FUNC_I2C3,
            .sda = GPIO(BB2), .scl = GPIO(BB1)},
        [3]{.pinmux_func = PINMUX_DDC_SCL_FUNC_I2C4,
            .sda = GPIO(V5), .scl = GPIO(V4)},
        [4]{.pinmux_func = PINMUX_PWR_I2C_SCL_FUNC_I2CPMU,
            .sda = GPIO(Z7), .scl = GPIO(Z6)},
}

Referenced by board_id(), get_board_id(), mtk_pcie_set_pinmux(), panel_id(), ram_code(), sku_id(), tegra_get_scl(), tegra_get_sda(), tegra_set_scl(), tegra_set_sda(), and tegra_software_i2c_disable().

scl

gpio_t scl

Definition at line 12 of file software_i2c.c.

Referenced by __wait(), get_scl(), set_scl(), tegra_get_scl(), tegra_set_scl(), and tegra_software_i2c_disable().

sda

gpio_t sda

Definition at line 11 of file software_i2c.c.

Referenced by __wait(), get_sda(), tegra_get_sda(), tegra_set_sda(), and tegra_software_i2c_disable().

tegra_ops

struct software_i2c_ops tegra_ops

static

Initial value:

= {
        .set_sda = tegra_set_sda,
        .set_scl = tegra_set_scl,
        .get_sda = tegra_get_sda,
        .get_scl = tegra_get_scl,
}

Definition at line 47 of file software_i2c.c.

Referenced by tegra_software_i2c_init().