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lvgl_tft: Remove gpio_pad_select_gpio from drivers init functions

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This commit is contained in:
C47D 2022-01-11 19:21:38 -06:00
parent 8cb1b3bdc2
commit 31247430df
6 changed files with 205 additions and 218 deletions
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69
lvgl_tft/hx8357.c
View file

@ -49,7 +49,7 @@ typedef struct {
static void hx8357_send_cmd(uint8_t cmd); static void hx8357_send_cmd(uint8_t cmd);
static void hx8357_send_data(void * data, uint16_t length); static void hx8357_send_data(void * data, uint16_t length);
static void hx8357_send_color(void * data, uint16_t length); static void hx8357_send_color(void * data, uint16_t length);
static void hx8357_reset(void);
/********************** /**********************
* INITIALIZATION ARRAYS * INITIALIZATION ARRAYS
@ -156,44 +156,31 @@ static uint8_t displayType = HX8357D;
void hx8357_init(void) void hx8357_init(void)
{ {
//Initialize non-SPI GPIOs hx8357_reset();
gpio_pad_select_gpio(HX8357_DC);
gpio_set_direction(HX8357_DC, GPIO_MODE_OUTPUT);
#if HX8357_USE_RST LV_LOG_INFO("Initialization.");
gpio_pad_select_gpio(HX8357_RST);
gpio_set_direction(HX8357_RST, GPIO_MODE_OUTPUT);
//Reset the display //Send all the commands
gpio_set_level(HX8357_RST, 0); const uint8_t *addr = (displayType == HX8357B) ? initb : initd;
vTaskDelay(10 / portTICK_RATE_MS); uint8_t cmd, x, numArgs;
gpio_set_level(HX8357_RST, 1); while((cmd = *addr++) > 0) { // '0' command ends list
vTaskDelay(120 / portTICK_RATE_MS); x = *addr++;
#endif numArgs = x & 0x7F;
if (cmd != 0xFF) { // '255' is ignored
if (x & 0x80) { // If high bit set, numArgs is a delay time
hx8357_send_cmd(cmd);
} else {
hx8357_send_cmd(cmd);
hx8357_send_data((void *) addr, numArgs);
addr += numArgs;
}
}
if (x & 0x80) { // If high bit set...
vTaskDelay(numArgs * 5 / portTICK_RATE_MS); // numArgs is actually a delay time (5ms units)
}
}
LV_LOG_INFO("Initialization."); hx8357_set_rotation(1);
//Send all the commands
const uint8_t *addr = (displayType == HX8357B) ? initb : initd;
uint8_t cmd, x, numArgs;
while((cmd = *addr++) > 0) { // '0' command ends list
x = *addr++;
numArgs = x & 0x7F;
if (cmd != 0xFF) { // '255' is ignored
if (x & 0x80) { // If high bit set, numArgs is a delay time
hx8357_send_cmd(cmd);
} else {
hx8357_send_cmd(cmd);
hx8357_send_data((void *) addr, numArgs);
addr += numArgs;
}
}
if (x & 0x80) { // If high bit set...
vTaskDelay(numArgs * 5 / portTICK_RATE_MS); // numArgs is actually a delay time (5ms units)
}
}
hx8357_set_rotation(1);
#if HX8357_INVERT_COLORS #if HX8357_INVERT_COLORS
hx8357_send_cmd(HX8357_INVON); hx8357_send_cmd(HX8357_INVON);
@ -286,3 +273,13 @@ static void hx8357_send_color(void * data, uint16_t length)
gpio_set_level(HX8357_DC, 1); /*Data mode*/ gpio_set_level(HX8357_DC, 1); /*Data mode*/
disp_spi_send_colors(data, length); disp_spi_send_colors(data, length);
} }
static void hx8357_reset(void)
{
#if HX8357_USE_RST
gpio_set_level(HX8357_RST, 0);
vTaskDelay(10 / portTICK_RATE_MS);
gpio_set_level(HX8357_RST, 1);
vTaskDelay(120 / portTICK_RATE_MS);
#endif
}

41
lvgl_tft/ili9481.c
View file

@ -35,6 +35,7 @@ static void ili9481_set_orientation(uint8_t orientation);
static void ili9481_send_cmd(uint8_t cmd); static void ili9481_send_cmd(uint8_t cmd);
static void ili9481_send_data(void * data, uint16_t length); static void ili9481_send_data(void * data, uint16_t length);
static void ili9481_send_color(void * data, uint16_t length); static void ili9481_send_color(void * data, uint16_t length);
static void ili9481_reset(void);
/********************** /**********************
* STATIC VARIABLES * STATIC VARIABLES
@ -70,27 +71,10 @@ void ili9481_init(void)
{0, {0}, 0xff}, {0, {0}, 0xff},
}; };
//Initialize non-SPI GPIOs ili9481_reset();
gpio_pad_select_gpio(ILI9481_DC);
gpio_set_direction(ILI9481_DC, GPIO_MODE_OUTPUT);
#if ILI9481_USE_RST
gpio_pad_select_gpio(ILI9481_RST);
gpio_set_direction(ILI9481_RST, GPIO_MODE_OUTPUT);
//Reset the display
gpio_set_level(ILI9481_RST, 0);
vTaskDelay(100 / portTICK_RATE_MS);
gpio_set_level(ILI9481_RST, 1);
vTaskDelay(100 / portTICK_RATE_MS);
#endif
LV_LOG_INFO("Initialization."); LV_LOG_INFO("Initialization.");
// Exit sleep
ili9481_send_cmd(0x01); /* Software reset */
vTaskDelay(100 / portTICK_RATE_MS);
//Send all the commands //Send all the commands
uint16_t cmd = 0; uint16_t cmd = 0;
while (ili_init_cmds[cmd].databytes!=0xff) { while (ili_init_cmds[cmd].databytes!=0xff) {
@ -108,7 +92,8 @@ void ili9481_init(void)
// Flush function based on mvturnho repo // Flush function based on mvturnho repo
void ili9481_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map) void ili9481_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map)
{ {
uint32_t size = lv_area_get_width(area) * lv_area_get_height(area); /* 3 is number of bytes in lv_color_t */
uint32_t size = lv_area_get_width(area) * lv_area_get_height(area) * 3;
lv_color16_t *buffer_16bit = (lv_color16_t *) color_map; lv_color16_t *buffer_16bit = (lv_color16_t *) color_map;
uint8_t *mybuf; uint8_t *mybuf;
@ -159,7 +144,9 @@ void ili9481_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
/*Memory write*/ /*Memory write*/
ili9481_send_cmd(ILI9481_CMD_MEMORY_WRITE); ili9481_send_cmd(ILI9481_CMD_MEMORY_WRITE);
ili9481_send_color((void *) mybuf, size * 3); ili9481_send_color((void *) mybuf, size);
/* FIXME: Can we free the memory even when it's being transferred? */
heap_caps_free(mybuf); heap_caps_free(mybuf);
} }
@ -203,3 +190,17 @@ static void ili9481_set_orientation(uint8_t orientation)
ili9481_send_cmd(ILI9481_CMD_MEMORY_ACCESS_CONTROL); ili9481_send_cmd(ILI9481_CMD_MEMORY_ACCESS_CONTROL);
ili9481_send_data((void *) &data[orientation], 1); ili9481_send_data((void *) &data[orientation], 1);
} }
static void ili9481_reset(void)
{
#if ILI9481_USE_RST
gpio_set_level(ILI9481_RST, 0);
vTaskDelay(100 / portTICK_RATE_MS);
gpio_set_level(ILI9481_RST, 1);
vTaskDelay(100 / portTICK_RATE_MS);
#else
// Exit sleep, software reset
ili9481_send_cmd(0x01);
vTaskDelay(100 / portTICK_RATE_MS);
#endif
}

149
lvgl_tft/ili9486.c
View file

@ -35,7 +35,7 @@ static void ili9486_set_orientation(uint8_t orientation);
static void ili9486_send_cmd(uint8_t cmd); static void ili9486_send_cmd(uint8_t cmd);
static void ili9486_send_data(void * data, uint16_t length); static void ili9486_send_data(void * data, uint16_t length);
static void ili9486_send_color(void * data, uint16_t length); static void ili9486_send_color(void * data, uint16_t length);
static void ili9486_reset(void);
/********************** /**********************
* STATIC VARIABLES * STATIC VARIABLES
**********************/ **********************/
@ -50,77 +50,62 @@ static void ili9486_send_color(void * data, uint16_t length);
void ili9486_init(void) void ili9486_init(void)
{ {
lcd_init_cmd_t ili_init_cmds[]={ lcd_init_cmd_t ili_init_cmds[]={
{0x11, {0}, 0x80}, {0x11, {0}, 0x80},
{0x3A, {0x55}, 1}, {0x3A, {0x55}, 1},
{0x2C, {0x44}, 1}, {0x2C, {0x44}, 1},
{0xC5, {0x00, 0x00, 0x00, 0x00}, 4}, {0xC5, {0x00, 0x00, 0x00, 0x00}, 4},
{0xE0, {0x0F, 0x1F, 0x1C, 0x0C, 0x0F, 0x08, 0x48, 0x98, 0x37, 0x0A, 0x13, 0x04, 0x11, 0x0D, 0x00}, 15}, {0xE0, {0x0F, 0x1F, 0x1C, 0x0C, 0x0F, 0x08, 0x48, 0x98, 0x37, 0x0A, 0x13, 0x04, 0x11, 0x0D, 0x00}, 15},
{0XE1, {0x0F, 0x32, 0x2E, 0x0B, 0x0D, 0x05, 0x47, 0x75, 0x37, 0x06, 0x10, 0x03, 0x24, 0x20, 0x00}, 15}, {0XE1, {0x0F, 0x32, 0x2E, 0x0B, 0x0D, 0x05, 0x47, 0x75, 0x37, 0x06, 0x10, 0x03, 0x24, 0x20, 0x00}, 15},
{0x20, {0}, 0}, /* display inversion OFF */ {0x20, {0}, 0}, /* display inversion OFF */
{0x36, {0x48}, 1}, {0x36, {0x48}, 1},
{0x29, {0}, 0x80}, /* display on */ {0x29, {0}, 0x80}, /* display on */
{0x00, {0}, 0xff}, {0x00, {0}, 0xff},
}; };
//Initialize non-SPI GPIOs ili9486_reset();
gpio_pad_select_gpio(ILI9486_DC);
gpio_set_direction(ILI9486_DC, GPIO_MODE_OUTPUT);
#if ILI9486_USE_RST LV_LOG_INFO("ILI9486 Initialization.");
gpio_pad_select_gpio(ILI9486_RST);
gpio_set_direction(ILI9486_RST, GPIO_MODE_OUTPUT);
//Reset the display //Send all the commands
gpio_set_level(ILI9486_RST, 0); uint16_t cmd = 0;
vTaskDelay(100 / portTICK_RATE_MS); while (ili_init_cmds[cmd].databytes!=0xff) {
gpio_set_level(ILI9486_RST, 1); ili9486_send_cmd(ili_init_cmds[cmd].cmd);
vTaskDelay(100 / portTICK_RATE_MS); ili9486_send_data(ili_init_cmds[cmd].data, ili_init_cmds[cmd].databytes&0x1F);
#endif if (ili_init_cmds[cmd].databytes & 0x80) {
vTaskDelay(100 / portTICK_RATE_MS);
LV_LOG_INFO("ILI9486 Initialization."); }
cmd++;
//Send all the commands }
uint16_t cmd = 0;
while (ili_init_cmds[cmd].databytes!=0xff) {
ili9486_send_cmd(ili_init_cmds[cmd].cmd);
ili9486_send_data(ili_init_cmds[cmd].data, ili_init_cmds[cmd].databytes&0x1F);
if (ili_init_cmds[cmd].databytes & 0x80) {
vTaskDelay(100 / portTICK_RATE_MS);
}
cmd++;
}
ili9486_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION); ili9486_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
} }
void ili9486_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map) void ili9486_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map)
{ {
uint8_t data[4] = {0}; uint8_t data[4] = {0};
uint32_t size = 0; /* 2 is the number of bytes in color depth */
uint32_t size = lv_area_get_width(area) * lv_area_get_height(area) * 2;
/*Column addresses*/ /*Column addresses*/
ili9486_send_cmd(0x2A); ili9486_send_cmd(0x2A);
data[0] = (area->x1 >> 8) & 0xFF; data[0] = (area->x1 >> 8) & 0xFF;
data[1] = area->x1 & 0xFF; data[1] = area->x1 & 0xFF;
data[2] = (area->x2 >> 8) & 0xFF; data[2] = (area->x2 >> 8) & 0xFF;
data[3] = area->x2 & 0xFF; data[3] = area->x2 & 0xFF;
ili9486_send_data(data, 4); ili9486_send_data(data, 4);
/*Page addresses*/ /*Page addresses*/
ili9486_send_cmd(0x2B); ili9486_send_cmd(0x2B);
data[0] = (area->y1 >> 8) & 0xFF; data[0] = (area->y1 >> 8) & 0xFF;
data[1] = area->y1 & 0xFF; data[1] = area->y1 & 0xFF;
data[2] = (area->y2 >> 8) & 0xFF; data[2] = (area->y2 >> 8) & 0xFF;
data[3] = area->y2 & 0xFF; data[3] = area->y2 & 0xFF;
ili9486_send_data(data, 4); ili9486_send_data(data, 4);
/*Memory write*/ /*Memory write*/
ili9486_send_cmd(0x2C); ili9486_send_cmd(0x2C);
ili9486_send_color((void*) color_map, size);
size = lv_area_get_width(area) * lv_area_get_height(area);
ili9486_send_color((void*) color_map, size * 2);
} }
/********************** /**********************
@ -128,30 +113,30 @@ void ili9486_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
**********************/ **********************/
static void ili9486_send_cmd(uint8_t cmd) static void ili9486_send_cmd(uint8_t cmd)
{ {
uint8_t to16bit[] = { uint8_t to16bit[] = {
0x00, cmd 0x00, cmd
}; };
disp_wait_for_pending_transactions(); disp_wait_for_pending_transactions();
gpio_set_level(ILI9486_DC, 0); /*Command mode*/ gpio_set_level(ILI9486_DC, 0); /*Command mode*/
disp_spi_send_data(to16bit, sizeof to16bit); disp_spi_send_data(to16bit, sizeof to16bit);
} }
static void ili9486_send_data(void * data, uint16_t length) static void ili9486_send_data(void * data, uint16_t length)
{ {
uint32_t i; uint32_t i;
uint8_t to16bit[32]; uint8_t to16bit[32];
uint8_t * dummy = data; uint8_t * dummy = data;
for(i=0; i < (length); i++) for(i=0; i < (length); i++)
{ {
to16bit[2*i+1] = dummy[i]; to16bit[2*i+1] = dummy[i];
to16bit[2*i] = 0x00; to16bit[2*i] = 0x00;
} }
disp_wait_for_pending_transactions(); disp_wait_for_pending_transactions();
gpio_set_level(ILI9486_DC, 1); /*Data mode*/ gpio_set_level(ILI9486_DC, 1); /*Data mode*/
disp_spi_send_data(to16bit, (length*2)); disp_spi_send_data(to16bit, (length*2));
} }
static void ili9486_send_color(void * data, uint16_t length) static void ili9486_send_color(void * data, uint16_t length)
@ -179,3 +164,13 @@ static void ili9486_set_orientation(uint8_t orientation)
ili9486_send_cmd(0x36); ili9486_send_cmd(0x36);
ili9486_send_data((void *) &data[orientation], 1); ili9486_send_data((void *) &data[orientation], 1);
} }
static void ili9486_reset(void)
{
#if ILI9486_USE_RST
gpio_set_level(ILI9486_RST, 0);
vTaskDelay(100 / portTICK_RATE_MS);
gpio_set_level(ILI9486_RST, 1);
vTaskDelay(100 / portTICK_RATE_MS);
#endif
}

46
lvgl_tft/sh1107.c
View file

@ -34,6 +34,7 @@ typedef struct {
static void sh1107_send_cmd(uint8_t cmd); static void sh1107_send_cmd(uint8_t cmd);
static void sh1107_send_data(void * data, uint16_t length); static void sh1107_send_data(void * data, uint16_t length);
static void sh1107_send_color(void * data, uint16_t length); static void sh1107_send_color(void * data, uint16_t length);
static void sh1107_reset(void);
static lv_coord_t get_display_ver_res(lv_disp_drv_t *disp_drv); static lv_coord_t get_display_ver_res(lv_disp_drv_t *disp_drv);
static lv_coord_t get_display_hor_res(lv_disp_drv_t *disp_drv); static lv_coord_t get_display_hor_res(lv_disp_drv_t *disp_drv);
@ -93,31 +94,18 @@ void sh1107_init(void)
{0, {0}, 0xff}, {0, {0}, 0xff},
}; };
//Initialize non-SPI GPIOs sh1107_reset();
gpio_pad_select_gpio(SH1107_DC);
gpio_set_direction(SH1107_DC, GPIO_MODE_OUTPUT);
#if SH1107_USE_RST //Send all the commands
gpio_pad_select_gpio(SH1107_RST); uint16_t cmd = 0;
gpio_set_direction(SH1107_RST, GPIO_MODE_OUTPUT); while (init_cmds[cmd].databytes!=0xff) {
sh1107_send_cmd(init_cmds[cmd].cmd);
//Reset the display sh1107_send_data(init_cmds[cmd].data, init_cmds[cmd].databytes&0x1F);
gpio_set_level(SH1107_RST, 0); if (init_cmds[cmd].databytes & 0x80) {
vTaskDelay(100 / portTICK_RATE_MS); vTaskDelay(100 / portTICK_RATE_MS);
gpio_set_level(SH1107_RST, 1); }
vTaskDelay(100 / portTICK_RATE_MS); cmd++;
#endif }
//Send all the commands
uint16_t cmd = 0;
while (init_cmds[cmd].databytes!=0xff) {
sh1107_send_cmd(init_cmds[cmd].cmd);
sh1107_send_data(init_cmds[cmd].data, init_cmds[cmd].databytes&0x1F);
if (init_cmds[cmd].databytes & 0x80) {
vTaskDelay(100 / portTICK_RATE_MS);
}
cmd++;
}
} }
void sh1107_set_px_cb(lv_disp_drv_t * disp_drv, uint8_t * buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y, void sh1107_set_px_cb(lv_disp_drv_t * disp_drv, uint8_t * buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
@ -257,3 +245,13 @@ static lv_coord_t get_display_hor_res(lv_disp_drv_t *disp_drv)
return val; return val;
} }
static void sh1107_reset(void)
{
#if SH1107_USE_RST
gpio_set_level(SH1107_RST, 0);
vTaskDelay(100 / portTICK_RATE_MS);
gpio_set_level(SH1107_RST, 1);
vTaskDelay(100 / portTICK_RATE_MS);
#endif
}

64
lvgl_tft/st7735s.c
View file

@ -39,6 +39,7 @@ static void st7735s_send_cmd(uint8_t cmd);
static void st7735s_send_data(void * data, uint16_t length); static void st7735s_send_data(void * data, uint16_t length);
static void st7735s_send_color(void * data, uint16_t length); static void st7735s_send_color(void * data, uint16_t length);
static void st7735s_set_orientation(uint8_t orientation); static void st7735s_set_orientation(uint8_t orientation);
static void st7735s_reset(void);
#ifdef CONFIG_LV_M5STICKC_HANDLE_AXP192 #ifdef CONFIG_LV_M5STICKC_HANDLE_AXP192
static void axp192_write_byte(uint8_t addr, uint8_t data); static void axp192_write_byte(uint8_t addr, uint8_t data);
@ -98,20 +99,7 @@ void st7735s_init(void)
{0, {0}, 0xff} {0, {0}, 0xff}
}; };
//Initialize non-SPI GPIOs st7735s_reset();
gpio_pad_select_gpio(ST7735S_DC);
gpio_set_direction(ST7735S_DC, GPIO_MODE_OUTPUT);
#if ST7735S_USE_RST
gpio_pad_select_gpio(ST7735S_RST);
gpio_set_direction(ST7735S_RST, GPIO_MODE_OUTPUT);
//Reset the display
gpio_set_level(ST7735S_RST, 0);
vTaskDelay(100 / portTICK_RATE_MS);
gpio_set_level(ST7735S_RST, 1);
vTaskDelay(100 / portTICK_RATE_MS);
#endif
LV_LOG_INFO("ST7735S initialization."); LV_LOG_INFO("ST7735S initialization.");
@ -137,29 +125,29 @@ void st7735s_init(void)
void st7735s_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map) void st7735s_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map)
{ {
uint8_t data[4]; uint8_t data[4] = {0};
/*Column addresses*/ /*Column addresses*/
st7735s_send_cmd(0x2A); st7735s_send_cmd(0x2A);
data[0] = (area->x1 >> 8) & 0xFF; data[0] = (area->x1 >> 8) & 0xFF;
data[1] = (area->x1 & 0xFF) + (st7735s_portrait_mode ? COLSTART : ROWSTART); data[1] = (area->x1 & 0xFF) + (st7735s_portrait_mode ? COLSTART : ROWSTART);
data[2] = (area->x2 >> 8) & 0xFF; data[2] = (area->x2 >> 8) & 0xFF;
data[3] = (area->x2 & 0xFF) + (st7735s_portrait_mode ? COLSTART : ROWSTART); data[3] = (area->x2 & 0xFF) + (st7735s_portrait_mode ? COLSTART : ROWSTART);
st7735s_send_data(data, 4); st7735s_send_data(data, 4);
/*Page addresses*/ /*Page addresses*/
st7735s_send_cmd(0x2B); st7735s_send_cmd(0x2B);
data[0] = (area->y1 >> 8) & 0xFF; data[0] = (area->y1 >> 8) & 0xFF;
data[1] = (area->y1 & 0xFF) + (st7735s_portrait_mode ? ROWSTART : COLSTART); data[1] = (area->y1 & 0xFF) + (st7735s_portrait_mode ? ROWSTART : COLSTART);
data[2] = (area->y2 >> 8) & 0xFF; data[2] = (area->y2 >> 8) & 0xFF;
data[3] = (area->y2 & 0xFF) + (st7735s_portrait_mode ? ROWSTART : COLSTART); data[3] = (area->y2 & 0xFF) + (st7735s_portrait_mode ? ROWSTART : COLSTART);
st7735s_send_data(data, 4); st7735s_send_data(data, 4);
/*Memory write*/ /*Memory write*/
st7735s_send_cmd(0x2C); st7735s_send_cmd(0x2C);
uint32_t size = lv_area_get_width(area) * lv_area_get_height(area); uint32_t size = lv_area_get_width(area) * lv_area_get_height(area) * 2;
st7735s_send_color((void*)color_map, size * 2); st7735s_send_color((void*)color_map, size);
} }
void st7735s_sleep_in() void st7735s_sleep_in()
@ -227,6 +215,16 @@ static void st7735s_set_orientation(uint8_t orientation)
st7735s_send_data((void *) &data[orientation], 1); st7735s_send_data((void *) &data[orientation], 1);
} }
static void st7735s_reset(void)
{
#if ST7735S_USE_RST
gpio_set_level(ST7735S_RST, 0);
vTaskDelay(100 / portTICK_RATE_MS);
gpio_set_level(ST7735S_RST, 1);
vTaskDelay(100 / portTICK_RATE_MS);
#endif
}
#ifdef CONFIG_LV_M5STICKC_HANDLE_AXP192 #ifdef CONFIG_LV_M5STICKC_HANDLE_AXP192
static void axp192_write_byte(uint8_t addr, uint8_t data) static void axp192_write_byte(uint8_t addr, uint8_t data)

54
lvgl_tft/st7796s.c
View file

@ -36,6 +36,7 @@ static void st7796s_set_orientation(uint8_t orientation);
static void st7796s_send_cmd(uint8_t cmd); static void st7796s_send_cmd(uint8_t cmd);
static void st7796s_send_data(void *data, uint16_t length); static void st7796s_send_data(void *data, uint16_t length);
static void st7796s_send_color(void *data, uint16_t length); static void st7796s_send_color(void *data, uint16_t length);
static void st7796s_reset(void);
/********************** /**********************
* STATIC VARIABLES * STATIC VARIABLES
@ -79,37 +80,24 @@ void st7796s_init(void)
{0, {0}, 0xff}, {0, {0}, 0xff},
}; };
//Initialize non-SPI GPIOs st7796s_reset();
gpio_pad_select_gpio(ST7796S_DC);
gpio_set_direction(ST7796S_DC, GPIO_MODE_OUTPUT);
#if ST7796S_USE_RST LV_LOG_INFO("Initialization.");
gpio_pad_select_gpio(ST7796S_RST);
gpio_set_direction(ST7796S_RST, GPIO_MODE_OUTPUT);
//Reset the display //Send all the commands
gpio_set_level(ST7796S_RST, 0); uint16_t cmd = 0;
vTaskDelay(100 / portTICK_RATE_MS); while (init_cmds[cmd].databytes != 0xff)
gpio_set_level(ST7796S_RST, 1); {
vTaskDelay(100 / portTICK_RATE_MS); st7796s_send_cmd(init_cmds[cmd].cmd);
#endif st7796s_send_data(init_cmds[cmd].data, init_cmds[cmd].databytes & 0x1F);
if (init_cmds[cmd].databytes & 0x80)
{
vTaskDelay(100 / portTICK_RATE_MS);
}
cmd++;
}
LV_LOG_INFO("Initialization."); st7796s_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
//Send all the commands
uint16_t cmd = 0;
while (init_cmds[cmd].databytes != 0xff)
{
st7796s_send_cmd(init_cmds[cmd].cmd);
st7796s_send_data(init_cmds[cmd].data, init_cmds[cmd].databytes & 0x1F);
if (init_cmds[cmd].databytes & 0x80)
{
vTaskDelay(100 / portTICK_RATE_MS);
}
cmd++;
}
st7796s_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
#if ST7796S_INVERT_COLORS == 1 #if ST7796S_INVERT_COLORS == 1
st7796s_send_cmd(0x21); st7796s_send_cmd(0x21);
@ -210,3 +198,13 @@ static void st7796s_set_orientation(uint8_t orientation)
st7796s_send_cmd(0x36); st7796s_send_cmd(0x36);
st7796s_send_data((void *)&data[orientation], 1); st7796s_send_data((void *)&data[orientation], 1);
} }
static void st7796s_reset(void)
{
#if ST7796S_USE_RST
gpio_set_level(ST7796S_RST, 0);
vTaskDelay(100 / portTICK_RATE_MS);
gpio_set_level(ST7796S_RST, 1);
vTaskDelay(100 / portTICK_RATE_MS);
#endif
}