309 lines
11 KiB
C
309 lines
11 KiB
C
#include "usr_bsp_i2c.h"
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#include <cpu.h>
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#include <os.h>
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#include <bsp_int.h>
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#include <bsp_sys.h>
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#include <lib_def.h>
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#include <os_cpu.h>
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#include "usr_bsp_sys.h"
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#include "driverlib/sysctl.h"
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#include "driverlib/gpio.h"
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#include "driverlib/pin_map.h"
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#include "driverlib/i2c.h"
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#include "driverlib/interrupt.h"
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#include "inc/hw_memmap.h"
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#include "inc/hw_i2c.h"
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#include "inc/hw_ints.h"
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int8_t usr_bsp_i2c_init(uint8_t i2c_id, int32_t i2c_speed, uint8_t i2c_mode, uint8_t slave_address)
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{
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if (i2c_mode == USR_I2C_MASTER) {
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switch (i2c_id) {
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case USR_I2C_NUM0:
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SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C0);
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SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
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GPIOPinConfigure(GPIO_PB2_I2C0SCL);
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GPIOPinConfigure(GPIO_PB3_I2C0SDA);
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GPIOPinTypeI2CSCL(GPIO_PORTB_BASE, GPIO_PIN_2);
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GPIOPinTypeI2C(GPIO_PORTB_BASE, GPIO_PIN_3);
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if (i2c_speed == USR_I2C_SPEED400000) {
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I2CMasterInitExpClk ( I2C0_BASE, usr_bsp_get_sysclock(), true );
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} else if (i2c_speed == USR_I2C_SPEED100000) {
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I2CMasterInitExpClk ( I2C0_BASE, usr_bsp_get_sysclock(), false );
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} else {
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return -1;
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}
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break;
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case USR_I2C_NUM1:
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SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C1);
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SysCtlPeripheralEnable (SYSCTL_PERIPH_GPIOG);
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GPIOPinConfigure(GPIO_PG0_I2C1SCL);
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GPIOPinConfigure(GPIO_PG1_I2C1SDA);
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GPIOPinTypeI2CSCL(GPIO_PORTG_BASE, GPIO_PIN_0);
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GPIOPinTypeI2C(GPIO_PORTG_BASE, GPIO_PIN_1);
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if (i2c_speed == USR_I2C_SPEED400000) {
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I2CMasterInitExpClk ( I2C1_BASE, usr_bsp_get_sysclock(), true );
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} else if (i2c_speed == USR_I2C_SPEED100000) {
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I2CMasterInitExpClk ( I2C1_BASE, usr_bsp_get_sysclock(), false );
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} else {
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return -1;
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}
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break;
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}
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return 0;
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} else if (i2c_mode == USR_I2C_SLAVE) {
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switch (i2c_id) {
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case USR_I2C_NUM0:
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SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C0);
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SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
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GPIOPinConfigure(GPIO_PB2_I2C0SCL);
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GPIOPinConfigure(GPIO_PB3_I2C0SDA);
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GPIOPinTypeI2CSCL(GPIO_PORTB_BASE, GPIO_PIN_2);
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GPIOPinTypeI2C(GPIO_PORTB_BASE, GPIO_PIN_3);
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I2CSlaveInit(I2C0_BASE, slave_address);
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break;
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case USR_I2C_NUM1:
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SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C1);
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SysCtlPeripheralEnable (SYSCTL_PERIPH_GPIOG);
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GPIOPinConfigure(GPIO_PG0_I2C1SCL);
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GPIOPinConfigure(GPIO_PG1_I2C1SDA);
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GPIOPinTypeI2CSCL(GPIO_PORTG_BASE, GPIO_PIN_0);
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GPIOPinTypeI2C(GPIO_PORTG_BASE, GPIO_PIN_1);
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I2CSlaveInit(I2C1_BASE, slave_address);
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break;
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}
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return 0;
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} else {
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return -1;
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}
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}
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int8_t usr_bsp_i2c_matser_senddata(uint8_t i2c_id, uint8_t slave_address,
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uint8_t *send_data, uint32_t send_len)
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{
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uint32_t i;
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CPU_SR_ALLOC();
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OS_ENTER_CRITICAL();
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if (send_len < 1) {
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OS_EXIT_CRITICAL();
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return -1;
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}
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if (i2c_id == USR_I2C_NUM0) {
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while(I2CMasterBusy(I2C0_BASE)){
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD>߿<EFBFBD><DFBF><EFBFBD>
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}
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I2CMasterSlaveAddrSet(I2C0_BASE, slave_address, false);
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if (send_len == 1) {
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I2CMasterDataPut(I2C0_BASE, *send_data);
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I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_SINGLE_SEND);
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if (I2C_MASTER_ERR_NONE != I2CMasterErr(I2C0_BASE)) {
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OS_EXIT_CRITICAL();
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return -1;
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}
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while(I2CMasterBusy(I2C0_BASE)){
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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}
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OS_EXIT_CRITICAL();
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return 0;
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}
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for (i = 0; i < send_len; i++) {
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if (i == 0) {
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I2CMasterDataPut(I2C0_BASE, send_data[i]);
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I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_SEND_START);
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} else if (i == send_len - 1) {
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I2CMasterDataPut(I2C0_BASE, send_data[i]);
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I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_SEND_FINISH);
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} else {
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I2CMasterDataPut(I2C0_BASE, send_data[i]);
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I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_SEND_CONT);
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}
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if (I2C_MASTER_ERR_NONE != I2CMasterErr(I2C0_BASE)) {
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if (i != send_len - 1) {
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if ((I2C_MCS_ARBLST & I2CMasterErr(I2C0_BASE)) != I2C_MCS_ARBLST) {
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I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_SEND_ERROR_STOP);
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}
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}
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OS_EXIT_CRITICAL();
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return -1;
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}
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while(I2CMasterBusy(I2C0_BASE)){
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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}
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}
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} else if (i2c_id == USR_I2C_NUM1) {
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while(I2CMasterBusy(I2C1_BASE)){
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD>߿<EFBFBD><DFBF><EFBFBD>
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}
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I2CMasterSlaveAddrSet(I2C1_BASE, slave_address, false);
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if (send_len == 1) {
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I2CMasterDataPut(I2C1_BASE, *send_data);
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I2CMasterControl(I2C1_BASE, I2C_MASTER_CMD_SINGLE_SEND);
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if (I2C_MASTER_ERR_NONE != I2CMasterErr(I2C1_BASE)) {
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OS_EXIT_CRITICAL();
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return -1;
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}
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while(I2CMasterBusy(I2C1_BASE)){
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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}
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OS_EXIT_CRITICAL();
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return 0;
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}
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for (i = 0; i < send_len; i++) {
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if (i == 0) {
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I2CMasterDataPut(I2C1_BASE, send_data[i]);
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I2CMasterControl(I2C1_BASE, I2C_MASTER_CMD_BURST_SEND_START);
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} else if (i == send_len - 1) {
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I2CMasterDataPut(I2C1_BASE, send_data[i]);
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I2CMasterControl(I2C1_BASE, I2C_MASTER_CMD_BURST_SEND_FINISH);
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} else {
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I2CMasterDataPut(I2C1_BASE, send_data[i]);
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I2CMasterControl(I2C1_BASE, I2C_MASTER_CMD_BURST_SEND_CONT);
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}
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if (I2C_MASTER_ERR_NONE != I2CMasterErr(I2C1_BASE)) {
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OS_EXIT_CRITICAL();
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return -1;
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}
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if (I2C_MASTER_ERR_NONE != I2CMasterErr(I2C1_BASE)) {
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if (i != send_len - 1) {
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if ((I2C_MCS_ARBLST & I2CMasterErr(I2C1_BASE)) != I2C_MCS_ARBLST) {
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I2CMasterControl(I2C1_BASE, I2C_MASTER_CMD_BURST_SEND_ERROR_STOP);
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}
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}
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OS_EXIT_CRITICAL();
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return -1;
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}
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while (I2CMasterBusy(I2C1_BASE)) {
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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}
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}
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} else {
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OS_EXIT_CRITICAL();
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return -1;
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}
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OS_EXIT_CRITICAL();
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return 0;
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}
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int8_t usr_bsp_i2c_matser_recvdata(uint8_t i2c_id, uint8_t slave_address,
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uint8_t *recv_data, uint32_t recv_len)
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{
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uint32_t i;
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CPU_SR_ALLOC();
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OS_ENTER_CRITICAL();
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if (recv_len < 1) {
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OS_EXIT_CRITICAL();
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return -1;
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}
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if (i2c_id == USR_I2C_NUM0) {
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while(I2CMasterBusy(I2C0_BASE)){
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD>߿<EFBFBD><DFBF><EFBFBD>
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}
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I2CMasterSlaveAddrSet(I2C0_BASE, slave_address, true);
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if (recv_len == 1) {
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I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_SINGLE_RECEIVE);
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if (I2C_MASTER_ERR_NONE != I2CMasterErr(I2C0_BASE)) {
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OS_EXIT_CRITICAL();
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return -1;
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}
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while(I2CMasterBusy(I2C0_BASE)){
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD>߿<EFBFBD><DFBF><EFBFBD>
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}
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*recv_data = I2CMasterDataGet(I2C0_BASE);
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OS_EXIT_CRITICAL();
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return 0;
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}
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for (i = 0; i < recv_len; i++) {
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if (i == 0) {
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I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_RECEIVE_START);
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} else if (i == recv_len - 1) {
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I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_RECEIVE_FINISH);
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} else {
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I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_RECEIVE_CONT);
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}
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if (I2C_MASTER_ERR_NONE != I2CMasterErr(I2C0_BASE)) {
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if (i != recv_len - 1) {
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if ((I2C_MCS_ARBLST & I2CMasterErr(I2C0_BASE)) != I2C_MCS_ARBLST) {
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I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_BURST_RECEIVE_ERROR_STOP);
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}
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}
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OS_EXIT_CRITICAL();
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return -1;
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}
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while(I2CMasterBusy(I2C0_BASE)){
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD>߿<EFBFBD><DFBF><EFBFBD>
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}
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recv_data[i] = I2CMasterDataGet(I2C0_BASE);
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}
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} else if (i2c_id == USR_I2C_NUM1) {
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while(I2CMasterBusy(I2C1_BASE)){
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD>߿<EFBFBD><DFBF><EFBFBD>
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}
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I2CMasterSlaveAddrSet(I2C1_BASE, slave_address, true);
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if (recv_len == 1) {
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I2CMasterControl(I2C1_BASE, I2C_MASTER_CMD_SINGLE_RECEIVE);
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if (I2C_MASTER_ERR_NONE != I2CMasterErr(I2C1_BASE)) {
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OS_EXIT_CRITICAL();
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return -1;
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}
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while(I2CMasterBusy(I2C1_BASE)){
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD>߿<EFBFBD><DFBF><EFBFBD>
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}
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*recv_data = I2CMasterDataGet(I2C1_BASE);
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OS_EXIT_CRITICAL();
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return 0;
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}
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for (i = 0; i < recv_len; i++) {
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if (i == 0) {
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I2CMasterControl(I2C1_BASE, I2C_MASTER_CMD_BURST_RECEIVE_START);
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} else if (i == recv_len - 1) {
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I2CMasterControl(I2C1_BASE, I2C_MASTER_CMD_BURST_RECEIVE_FINISH);
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} else {
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I2CMasterControl(I2C1_BASE, I2C_MASTER_CMD_BURST_RECEIVE_CONT);
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}
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if (I2C_MASTER_ERR_NONE != I2CMasterErr(I2C1_BASE)) {
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if (i != recv_len - 1) {
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if ((I2C_MCS_ARBLST & I2CMasterErr(I2C1_BASE)) != I2C_MCS_ARBLST) {
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I2CMasterControl(I2C1_BASE, I2C_MASTER_CMD_BURST_RECEIVE_ERROR_STOP);
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}
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}
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OS_EXIT_CRITICAL();
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return -1;
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}
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while(I2CMasterBusy(I2C1_BASE)){
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//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD>߿<EFBFBD><DFBF><EFBFBD>
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}
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recv_data[i] = I2CMasterDataGet(I2C1_BASE);
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}
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} else {
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OS_EXIT_CRITICAL();
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return -1;
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}
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OS_EXIT_CRITICAL();
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return 0;
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}
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int8_t usr_bsp_i2c_slave_recvdata(uint8_t i2c_id, uint8_t *recv_data, uint32_t recv_len)
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{
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return 0;
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}
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int8_t usr_bsp_i2c_slave_senddata(uint8_t i2c_id, uint8_t *send_data, uint32_t send_len)
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{
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return 0;
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}
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