KT25-0812_82A-UART/cpu/br25/ui_driver/lcd_spi/lcd_drive.c

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2025-08-12 10:09:23 +00:00
/* LCD 调试等级,
* 0
* 1
* 2 */
#define SPI_LCD_DEBUG_ENABLE 0
#include "includes.h"
#include "app_config.h"
#include "ui/ui_api.h"
#include "system/includes.h"
#include "system/timer.h"
#include "asm/spi.h"
#if TCFG_SPI_LCD_ENABLE
/* 选择SPIx模块作为推屏通道0、1、2 */
/* 但SPI0通常作为外部falsh使用一般不用SPI0 */
#define SPI_MODULE_CHOOSE 0
/* 中断使能,一般推屏不需要 */
#define SPI_INTERRUPT_ENABLE
#ifdef SPI_INTERRUPT_ENABLE
#if SPI_MODULE_CHOOSE == 0
#define IRQ_SPI_IDX IRQ_SPI0_IDX
#elif SPI_MODULE_CHOOSE == 1
#define IRQ_SPI_IDX IRQ_SPI1_IDX
#elif SPI_MODULE_CHOOSE == 2
#define IRQ_SPI_IDX IRQ_SPI2_IDX
#else
#error "error! SPI_MODULE_CHOOSE defien error!"
#endif
#endif
int clk_get(const char *name);
int clk_set(const char *name, int clk);
void spi_clear_pending(spi_dev spi);
u8 spi_get_pending(spi_dev spi);
void spi_dma_set_addr_for_isr(spi_dev spi, void *buf, u32 len, u8 rw);;
void spi_dma_wait_finish();
/* 屏幕驱动的接口 */
extern struct spi_lcd_init dev_drive;
struct lcd_spi_platform_data *spi_dat = NULL;
static int spi_pnd = false;
#define __this (&dev_drive)
static u8 is_lcd_busy = 0;
#ifdef SPI_INTERRUPT_ENABLE
/* SPI中断函数 */
// 注dma模式在发送数据时内部已经清理中断pnd
__attribute__((interrupt("")))
static void spi_isr()
{
if (spi_get_pending(spi_dat->spi_cfg)) {
/* printf("spi_isr\n"); */
/* spi_clear_pending(spi_dat->spi_cfg); */
if (is_lcd_busy) {
is_lcd_busy = 0;
}
spi_set_ie(spi_dat->spi_cfg, 0);
}
}
#endif
static void clock_critical_enter()
{
}
static void clock_critical_exit()
{
if (spi_dat && spi_dat->spi_cfg) {
spi_set_baud(spi_dat->spi_cfg, spi_get_baud(spi_dat->spi_cfg));
}
}
CLOCK_CRITICAL_HANDLE_REG(spi_lcd, clock_critical_enter, clock_critical_exit);
static void spi_init(int spi_cfg)
{
int err;
// spi gpio init
err = spi_open(spi_cfg);
if (err < 0) {
lcd_e("open spi falid\n");
}
#ifdef SPI_INTERRUPT_ENABLE
// 配置中断优先级,中断函数
/* spi_set_ie(spi_cfg, 1); */
request_irq(IRQ_SPI_IDX, 3, spi_isr, 0);
#endif
}
// io口操作
void lcd_reset_l()
{
gpio_direction_output((u32)spi_dat->pin_reset, 0);
}
void lcd_reset_h()
{
gpio_direction_output((u32)spi_dat->pin_reset, 1);
}
void lcd_cs_l()
{
gpio_direction_output((u32)spi_dat->pin_cs, 0);
}
void lcd_cs_h()
{
gpio_direction_output((u32)spi_dat->pin_cs, 1);
}
void lcd_rs_l()
{
gpio_direction_output((u32)spi_dat->pin_rs, 0);
}
void lcd_rs_h()
{
gpio_direction_output((u32)spi_dat->pin_rs, 1);
}
void lcd_bl_l()
{
gpio_direction_output((u32)spi_dat->pin_bl, 0);
}
void lcd_bl_h()
{
gpio_direction_output((u32)spi_dat->pin_bl, 1);
}
void spi_dma_wait_finish()
{
if (spi_pnd) {
while (!spi_get_pending(spi_dat->spi_cfg)) {
/* delay(10); */
extern void wdt_clear();
wdt_clear();
}
spi_clear_pending(spi_dat->spi_cfg);
spi_pnd = false;
}
}
int __spi_dma_send(spi_dev spi, void *buf, u32 len, u8 wait)
{
int err = 0;
if (!wait || spi_pnd) {
spi_dma_wait_finish();
}
spi_dma_set_addr_for_isr(spi_dat->spi_cfg, buf, len, 0);
spi_pnd = true;
asm("csync");
if (wait) {
spi_dma_wait_finish();
}
return err;
}
void spi_dma_send_byte(u8 dat)
{
int err = 0;
u32 _dat __attribute__((aligned(4))) = 0;
((u8 *)(&_dat))[0] = dat;
if (spi_dat) {
err = __spi_dma_send(spi_dat->spi_cfg, &_dat, 1, 1);
}
if (err < 0) {
lcd_e("spi dma send byte timeout\n");
}
}
u8 lcd_spi_recv_byte()
{
int err;
int ret;
#if 0
ret = spi_recv_byte_for_isr(spi_dat->spi_cfg);
asm("csync");
spi_pnd = true;
spi_dma_wait_finish();
#else
ret = spi_recv_byte(spi_dat->spi_cfg, &err);
spi_pnd = false;
#endif
return ret;
}
int lcd_spi_send_byte(u8 byte)
{
int ret;
#if 0
spi_send_byte_for_isr(spi_dat->spi_cfg, byte);
asm("csync");
spi_pnd = true;
spi_dma_wait_finish();
#else
ret = spi_send_byte(spi_dat->spi_cfg, byte);
spi_pnd = false;
#endif
return 0;
}
void lcd_spi_set_bit_mode(int mode)
{
spi_set_bit_mode(spi_dat->spi_cfg, mode);
}
void lcd_spi_dma_send_wait(u8 *map, u32 size)
{
int err = 0;
if (spi_dat) {
err = __spi_dma_send(spi_dat->spi_cfg, map, size, 1);
}
if (err < 0) {
lcd_e("spi dma send map timeout\n");
}
}
void spi_dma_send_map(u8 *map, u32 size)
{
int err = 0;
if (spi_dat) {
err = __spi_dma_send(spi_dat->spi_cfg, map, size, 0);
}
if (err < 0) {
lcd_e("spi dma send map timeout\n");
}
}
void spi_dma_recv_data(u8 *buf, u32 size)
{
int err = 0;
if (spi_dat) {
err = spi_dma_recv(spi_dat->spi_cfg, buf, size);
}
if (err < 0) {
lcd_e("spi dma recv timeout\n");
}
}
static void spi_init_code(const InitCode *code, u8 cnt)
{
u8 i, j;
for (i = 0; i < cnt; i++) {
if (code[i].cmd == REGFLAG_DELAY) {
extern void wdt_clear(void);
wdt_clear();
delay2ms(code[i].cnt / 2);
} else {
__this->WriteComm(code[i].cmd);
lcd_d("cmd:%x ", code[i].cmd);
for (j = 0; j < code[i].cnt; j++) {
__this->WriteData(code[i].dat[j]);
lcd_d("%02x ", code[i].dat[j]);
}
lcd_d("\n");
}
}
}
static void lcd_dev_init(void *p)
{
struct ui_devices_cfg *cfg = (struct ui_devices_cfg *)p;
int err = 0;
spi_dat = (struct lcd_spi_platform_data *)cfg->private_data;
ASSERT(spi_dat, "Error! spi io not config");
printf("spi pin rest:%d, cs:%d, rs:%d, spi:%d\n", spi_dat->pin_reset, spi_dat->pin_cs, spi_dat->pin_rs, spi_dat->spi_cfg);
if (spi_dat->pin_reset != -1) {
gpio_set_die((u32)spi_dat->pin_reset, 1);
gpio_direction_output((u32)spi_dat->pin_reset, 1);
}
if (spi_dat->pin_cs != -1) {
gpio_set_die((u32)spi_dat->pin_cs, 1);
gpio_direction_output((u32)spi_dat->pin_cs, 1);
}
gpio_direction_output((u32)spi_dat->pin_rs, 1);
if (!__this->soft_spi) {
spi_init(spi_dat->spi_cfg);
}
if (__this->Reset) { // 如果有硬件复位
__this->Reset();
}
if (__this->initcode && __this->initcode_cnt) {
spi_init_code(__this->initcode, __this->initcode_cnt); // 初始化屏幕
} else if (__this->Init) {
__this->Init();
}
}
static int lcd_init(void *p)
{
printf("lcd_init ...\n");
lcd_dev_init(p);
return 0;
}
static int lcd_get_screen_info(struct lcd_info *info)
{
info->width = __this->lcd_width;
info->height = __this->lcd_height;
info->color_format = __this->color_format;
info->interface = __this->interface;
info->col_align = __this->column_addr_align;
info->row_align = __this->row_addr_align;
ASSERT(info->col_align, " = 0, lcd driver column address align error, default value is 1");
ASSERT(info->row_align, " = 0, lcd driver row address align error, default value is 1");
return 0;
}
static int lcd_buffer_malloc(u8 **buf, u32 *size)
{
*buf = __this->dispbuf;
*size = __this->bufsize;
return 0;
}
static int lcd_buffer_free(u8 *buf)
{
return 0;
}
static int lcd_draw(u8 *buf, u32 len, u8 wait)
{
is_lcd_busy = 1;
/* int clk = clk_get("sys"); */
/* if (clk != 192000000) { */
/* clk_set("sys", 192000000L); */
/* } */
__this->WriteMap(buf, len);
if (wait) {
/* spi_dma_wait_finish(); */
spi_set_ie(spi_dat->spi_cfg, 1);
} else {
is_lcd_busy = 0;
}
return 0;
}
static int lcd_set_draw_area(u16 xs, u16 xe, u16 ys, u16 ye)
{
spi_set_ie(spi_dat->spi_cfg, 0);
spi_dma_wait_finish();
__this->SetDrawArea(xs, xe, ys, ye);
return 0;
}
static int lcd_clear_screen(u16 color)
{
int i;
int buffer_lines;
int remain;
int draw_line;
int y;
if (__this->color_format == LCD_COLOR_RGB565) {
buffer_lines = __this->bufsize / __this->lcd_width / 2;
for (i = 0; i < buffer_lines * __this->lcd_width; i++) {
__this->dispbuf[2 * i] = color >> 8;
__this->dispbuf[2 * i + 1] = color;
}
y = 0;
remain = __this->lcd_height;
while (remain) {
draw_line = buffer_lines > remain ? remain : buffer_lines;
lcd_set_draw_area(0, __this->lcd_width - 1, y, y + draw_line - 1);
lcd_draw(__this->dispbuf, draw_line * __this->lcd_width * 2, 0);
remain -= draw_line;
y += draw_line;
}
} else if (__this->color_format == LCD_COLOR_MONO) {
__this->SetDrawArea(0, -1, 0, -1);
memset(__this->dispbuf, 0x00, __this->lcd_width * __this->lcd_height / 8);
__this->WriteMap(__this->dispbuf, __this->lcd_width * __this->lcd_height / 8);
} else {
ASSERT(0, "the color_format %d not support yet!", __this->color_format);
}
return 0;
}
int lcd_backlight_ctrl(u8 on)
{
static u8 first_power_on = true;
if (first_power_on) {
lcd_clear_screen(0x0000);
first_power_on = false;
}
if (!(cpu_in_irq() || cpu_irq_disabled())) {
os_time_dly(6);
}
if (__this->BackLightCtrl) {
__this->BackLightCtrl(on);
}
return 0;
}
struct lcd_interface *lcd_get_hdl()
{
struct lcd_interface *p;
ASSERT(lcd_interface_begin != lcd_interface_end, "don't find lcd interface!");
for (p = lcd_interface_begin; p < lcd_interface_end; p++) {
return p;
}
return NULL;
}
int lcd_backlight_status()
{
return 1;
}
REGISTER_LCD_INTERFACE(lcd) = {
.init = lcd_init,
.get_screen_info = lcd_get_screen_info,
.buffer_malloc = lcd_buffer_malloc,
.buffer_free = lcd_buffer_free,
.draw = lcd_draw,
.set_draw_area = lcd_set_draw_area,
.backlight_ctrl = lcd_backlight_ctrl,
};
static u8 lcd_idle_query(void)
{
return !is_lcd_busy;
}
REGISTER_LP_TARGET(lcd_lp_target) = {
.name = "lcd",
.is_idle = lcd_idle_query,
};
#endif