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Cleanup and re-write uart code

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This commit is contained in:
hexkyz
2019-07-21 19:18:15 +01:00
parent f9c1d5fc1b
commit 7cee36544c
23 changed files with 971 additions and 242 deletions
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47
fusee/fusee-secondary/src/i2c.c
View File

@@ -17,19 +17,52 @@
#include "i2c.h"
#include "utils.h"
#include "timers.h"
#include "pinmux.h"
/* Prototypes for internal commands. */
volatile tegra_i2c_t *i2c_get_registers_from_id(unsigned int id);
volatile tegra_i2c_t *i2c_get_registers_from_id(I2CDevice id);
void i2c_load_config(volatile tegra_i2c_t *regs);
bool i2c_query(unsigned int id, uint8_t device, uint8_t r, void *dst, size_t dst_size);
bool i2c_send(unsigned int id, uint8_t device, uint8_t r, void *src, size_t src_size);
bool i2c_query(I2CDevice id, uint8_t device, uint8_t r, void *dst, size_t dst_size);
bool i2c_send(I2CDevice id, uint8_t device, uint8_t r, void *src, size_t src_size);
bool i2c_write(volatile tegra_i2c_t *regs, uint8_t device, void *src, size_t src_size);
bool i2c_read(volatile tegra_i2c_t *regs, uint8_t device, void *dst, size_t dst_size);
/* Configure I2C pinmux. */
void i2c_config(I2CDevice id) {
volatile tegra_pinmux_t *pinmux = pinmux_get_regs();
switch (id) {
case I2C_1:
pinmux->gen1_i2c_scl = PINMUX_INPUT;
pinmux->gen1_i2c_sda = PINMUX_INPUT;
break;
case I2C_2:
pinmux->gen2_i2c_scl = PINMUX_INPUT;
pinmux->gen2_i2c_sda = PINMUX_INPUT;
break;
case I2C_3:
pinmux->gen3_i2c_scl = PINMUX_INPUT;
pinmux->gen3_i2c_sda = PINMUX_INPUT;
break;
case I2C_4:
pinmux->cam_i2c_scl = PINMUX_INPUT;
pinmux->cam_i2c_sda = PINMUX_INPUT;
break;
case I2C_5:
pinmux->pwr_i2c_scl = PINMUX_INPUT;
pinmux->pwr_i2c_sda = PINMUX_INPUT;
break;
case I2C_6:
/* Unused. */
break;
default: break;
}
}
/* Initialize I2C based on registers. */
void i2c_init(unsigned int id) {
void i2c_init(I2CDevice id) {
volatile tegra_i2c_t *regs = i2c_get_registers_from_id(id);
/* Setup divisor, and clear the bus. */
@@ -91,7 +124,7 @@ void i2c_set_ti_charger_bit_7(void) {
}
/* Get registers pointer based on I2C ID. */
volatile tegra_i2c_t *i2c_get_registers_from_id(unsigned int id) {
volatile tegra_i2c_t *i2c_get_registers_from_id(I2CDevice id) {
switch (id) {
case I2C_1:
return I2C1_REGS;
@@ -126,7 +159,7 @@ void i2c_load_config(volatile tegra_i2c_t *regs) {
}
/* Reads a register from a device over I2C, writes result to output. */
bool i2c_query(unsigned int id, uint8_t device, uint8_t r, void *dst, size_t dst_size) {
bool i2c_query(I2CDevice id, uint8_t device, uint8_t r, void *dst, size_t dst_size) {
volatile tegra_i2c_t *regs = i2c_get_registers_from_id(id);
uint32_t val = r;
@@ -143,7 +176,7 @@ bool i2c_query(unsigned int id, uint8_t device, uint8_t r, void *dst, size_t dst
}
/* Writes a value to a register over I2C. */
bool i2c_send(unsigned int id, uint8_t device, uint8_t r, void *src, size_t src_size) {
bool i2c_send(I2CDevice id, uint8_t device, uint8_t r, void *src, size_t src_size) {
uint32_t val = r;
if (src_size == 0) {
return true;

24
fusee/fusee-secondary/src/i2c.h
View File

@@ -24,13 +24,6 @@
#define I2C1234_BASE 0x7000C000
#define I2C56_BASE 0x7000D000
#define I2C_1 0
#define I2C_2 1
#define I2C_3 2
#define I2C_4 3
#define I2C_5 4
#define I2C_6 5
#define MAX77621_CPU_I2C_ADDR 0x1B
#define MAX77621_GPU_I2C_ADDR 0x1C
#define MAX17050_I2C_ADDR 0x36
@@ -38,6 +31,15 @@
#define MAX77620_RTC_I2C_ADDR 0x68
#define BQ24193_I2C_ADDR 0x6B
typedef enum {
I2C_1 = 0,
I2C_2 = 1,
I2C_3 = 2,
I2C_4 = 3,
I2C_5 = 4,
I2C_6 = 5,
} I2CDevice;
typedef struct {
uint32_t I2C_I2C_CNFG_0;
uint32_t I2C_I2C_CMD_ADDR0_0;
@@ -89,9 +91,11 @@ typedef struct {
#define I2C5_REGS ((volatile tegra_i2c_t *)(I2C56_BASE + 0x000))
#define I2C6_REGS ((volatile tegra_i2c_t *)(I2C56_BASE + 0x100))
void i2c_init(unsigned int id);
bool i2c_query(unsigned int id, uint8_t device, uint8_t r, void *dst, size_t dst_size);
bool i2c_send(unsigned int id, uint8_t device, uint8_t r, void *src, size_t src_size);
void i2c_config(I2CDevice id);
void i2c_init(I2CDevice id);
bool i2c_query(I2CDevice id, uint8_t device, uint8_t r, void *dst, size_t dst_size);
bool i2c_send(I2CDevice id, uint8_t device, uint8_t r, void *src, size_t src_size);
void i2c_send_pmic_cpu_shutdown_cmd(void);
bool i2c_query_ti_charger_bit_7(void);