195 lines
6.1 KiB
C
195 lines
6.1 KiB
C
#include "board_config.h"
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#include "generic/typedef.h"
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#include "generic/gpio.h"
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#include "asm/gpio.h"
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#include "asm/clock.h"
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#include "device/chargebox.h"
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#if(TCFG_CHARGE_BOX_ENABLE)
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#define BUF_LEN (64)
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struct chargebox_handle {
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const struct chargebox_platform_data *data;
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JL_UART_TypeDef *UART;
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u32 uart_baud;
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u32 input_chl;
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u32 output_chl;
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u32 ut_chl;
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u8 init_flag;
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volatile u8 lr_flag;
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volatile u8 rx_index;
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};
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static u8 uart_buf[BUF_LEN] __attribute__((aligned(4)));
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#define __this (&hdl)
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static struct chargebox_handle hdl;
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extern void printf_buf(u8 *buf, u32 len);
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extern void chargebox_data_deal(u8 cmd, u8 l_r, u8 *data, u8 length);
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void __attribute__((weak)) chargebox_data_deal(u8 cmd, u8 l_r, u8 *data, u8 len)
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{
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}
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___interrupt
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static void uart_isr(void)
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{
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u32 rx_len, timeout;
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if ((__this->UART->CON0 & BIT(2)) && (__this->UART->CON0 & BIT(15))) {//发送完成
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__this->UART->CON0 |= BIT(13);
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chargebox_data_deal(CMD_COMPLETE, __this->lr_flag, NULL, 0);
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}
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if ((__this->UART->CON0 & BIT(3)) && (__this->UART->CON0 & BIT(14))) {//接收中断
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__this->UART->CON0 |= BIT(12);
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uart_buf[__this->rx_index] = __this->UART->BUF;
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__this->rx_index++;
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chargebox_data_deal(CMD_RECVBYTE, __this->lr_flag, &uart_buf[__this->rx_index - 1], 1);
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}
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if ((__this->UART->CON0 & BIT(5)) && (__this->UART->CON0 & BIT(11))) {
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//OTCNT PND
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__this->UART->CON0 |= BIT(7);//DMA模式
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__this->UART->CON0 |= BIT(10);//清OTCNT PND
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asm volatile("nop");
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rx_len = __this->UART->HRXCNT;//读当前串口接收数据的个数
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__this->UART->CON0 |= BIT(12);//清RX PND(这里的顺序不能改变，这里要清一次)
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rx_len = __this->rx_index;
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timeout = 20 * 1000000 / __this->uart_baud;
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__this->UART->OTCNT = timeout * (clk_get("uart") / 1000000);
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chargebox_data_deal(CMD_RECVDATA, __this->lr_flag, uart_buf, rx_len);
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__this->rx_index = 0;
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}
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}
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u8 chargebox_write(u8 l_r, u8 *data, u8 len)
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{
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if ((len == 0) || (len > BUF_LEN)) {
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return 0;
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}
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__this->lr_flag = l_r;
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memcpy(uart_buf, data, len);
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__this->UART->TXADR = (u32)uart_buf;
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__this->UART->TXCNT = (u16)len;
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return len;
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}
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void chargebox_open(u8 l_r, u8 mode)
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{
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u32 io_port;
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if (l_r == EAR_L) {
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io_port = __this->data->L_port;
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} else {
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io_port = __this->data->R_port;
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}
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__this->lr_flag = l_r;
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if (mode == MODE_RECVDATA) {
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__this->UART->CON0 = BIT(13) | BIT(12) | BIT(10);
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gpio_uart_rx_input(io_port, __this->ut_chl, __this->input_chl);
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gpio_set_pull_up(io_port, 1);
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__this->rx_index = 0;
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__this->UART->CON0 |= BIT(5) | BIT(3);
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__this->UART->CON0 |= BIT(13) | BIT(12) | BIT(10) | BIT(0);
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} else {
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__this->UART->CON0 = BIT(13) | BIT(12) | BIT(10);
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gpio_output_channle(io_port, __this->output_chl);
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gpio_set_hd(io_port, 0);
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gpio_set_hd0(io_port, 0);
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__this->UART->CON0 = BIT(13) | BIT(12) | BIT(10) | BIT(2) | BIT(0);
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}
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}
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void chargebox_close(u8 l_r)
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{
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u32 io_port;
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if (l_r == EAR_L) {
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io_port = __this->data->L_port;
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} else {
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io_port = __this->data->R_port;
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}
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__this->UART->CON0 = BIT(13) | BIT(12) | BIT(10);
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gpio_set_pull_down(io_port, 0);
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gpio_set_pull_up(io_port, 0);
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gpio_set_die(io_port, 1);
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gpio_set_hd(io_port, 0);
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gpio_direction_output(io_port, 1);
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}
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void chargebox_set_baud(u8 l_r, u32 baudrate)
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{
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u32 uart_timeout;
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__this->uart_baud = baudrate;
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uart_timeout = 20 * 1000000 / __this->uart_baud;
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__this->UART->OTCNT = uart_timeout * (clk_get("lsb") / 1000000);
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__this->UART->BAUD = (clk_get("uart") / __this->uart_baud) / 4 - 1;
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}
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void chargebox_init(const struct chargebox_platform_data *data)
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{
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u32 uart_timeout;
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__this->data = (struct chargebox_platform_data *)data;
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ASSERT(data);
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if (!(JL_UART0->CON0 & BIT(0))) {
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JL_UART0->CON0 = BIT(13) | BIT(12) | BIT(10);
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request_irq(IRQ_UART0_IDX, 2, uart_isr, 0);
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__this->UART = JL_UART0;
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__this->input_chl = INPUT_CH0;
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__this->output_chl = CH0_UT0_TX;
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__this->ut_chl = 0;
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gpio_set_uart0(-1);
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} else if (!(JL_UART1->CON0 & BIT(0))) {
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JL_UART1->CON0 = BIT(13) | BIT(12) | BIT(10);
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request_irq(IRQ_UART1_IDX, 2, uart_isr, 0);
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__this->UART = JL_UART1;
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__this->input_chl = INPUT_CH3;
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__this->output_chl = CH1_UT1_TX;
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__this->ut_chl = 1;
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gpio_set_uart1(-1);
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} else if (!(JL_UART2->CON0 & BIT(0))) {
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JL_UART2->CON0 = BIT(13) | BIT(12) | BIT(10);
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request_irq(IRQ_UART2_IDX, 2, uart_isr, 0);
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__this->UART = JL_UART2;
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__this->input_chl = INPUT_CH2;
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__this->output_chl = CH2_UT2_TX;
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__this->ut_chl = 2;
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gpio_set_uart2(-1);
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} else {
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ASSERT(0, "uart all used!\n");
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}
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uart_timeout = 20 * 1000000 / __this->data->baudrate;
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__this->uart_baud = __this->data->baudrate;
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__this->UART->CON0 = 0;
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__this->UART->CON0 = BIT(13) | BIT(12) | BIT(10) | BIT(0);
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__this->UART->OTCNT = uart_timeout * (clk_get("lsb") / 1000000);
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__this->UART->BAUD = (clk_get("uart") / __this->data->baudrate) / 4 - 1;
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gpio_set_pull_down(__this->data->L_port, 0);
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gpio_set_pull_up(__this->data->L_port, 0);
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gpio_set_die(__this->data->L_port, 1);
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gpio_direction_input(__this->data->L_port);
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gpio_set_pull_down(__this->data->R_port, 0);
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gpio_set_pull_up(__this->data->R_port, 0);
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gpio_set_die(__this->data->R_port, 1);
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gpio_direction_input(__this->data->R_port);
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__this->init_flag = 1;
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}
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static void clock_critical_enter(void)
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{
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}
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static void clock_critical_exit(void)
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{
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u32 uart_timeout;
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if (!__this->init_flag) {
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return;
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}
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uart_timeout = 20 * 1000000 / __this->uart_baud;
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__this->UART->OTCNT = uart_timeout * (clk_get("lsb") / 1000000);
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__this->UART->BAUD = (clk_get("uart") / __this->uart_baud) / 4 - 1;
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}
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CLOCK_CRITICAL_HANDLE_REG(chargebox, clock_critical_enter, clock_critical_exit)
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#endif//end if TCFG_CHARGE_BOX_ENABLE
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