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Implements printing GT911 configuration register block #4

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Implements printing GT911 configuration register block #4

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21 changes: 21 additions & 0 deletions lv_port_indev.c
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@
/*********************
* DEFINES
*********************/
#define PRINT_GT911_CONFIG // Prints device configuration after initialization. Comment out to disable printing.

/**********************
* TYPEDEFS
Expand Down Expand Up @@ -100,6 +101,22 @@ int gt911_i2c_read(uint8_t slave_addr, uint16_t register_addr, uint8_t *data_buf
* Touchpad
* -----------------*/

/*Prints GT911 configuration block*/
#if defined(PRINT_GT911_CONFIG)
static void print_config(void)
{
uint8_t config[GT911_CFG_END_ADDRESS - GT911_CFG_BASE_ADDRESS + 1] = { 0 };
gt911_i2c_read(gt911_status.i2c_dev_addr, GT911_CFG_BASE_ADDRESS, config, sizeof(config));

printf("device configuration from 0x%04hX to 0x%04hX:\n", GT911_CFG_BASE_ADDRESS, GT911_CFG_END_ADDRESS);
for(int idx = 1; idx <= sizeof(config); idx++)
{
printf("%02hhX ", config[idx - 1]);
if(0 == (idx % 6)) { printf(": 0x%04hX - 0x%04hX\n", GT911_CFG_BASE_ADDRESS + idx - 6, GT911_CFG_BASE_ADDRESS + idx - 1); }
}
}
#endif

/*Initialize your touchpad*/
static void touchpad_init(void)
{
Expand Down Expand Up @@ -137,6 +154,10 @@ static void touchpad_init(void)
gt911_i2c_read(gt911_status.i2c_dev_addr, GT911_Y_COORD_RES_H, &data_buf, 1);
gt911_status.max_y_coord |= ((uint16_t)data_buf << 8);
gt911_status.inited = true;

#if defined(PRINT_GT911_CONFIG)
static void print_config(void);
#endif
}
}

Expand Down
19 changes: 12 additions & 7 deletions lv_port_indev.h
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Original file line number Diff line number Diff line change
Expand Up @@ -26,9 +26,14 @@ extern "C" {
/**********************
* TYPEDEFS
**********************/
#define GT911_I2C_SLAVE_ADDR 0x5D
#define GT911_I2C_SLAVE_ADDR 0x5D

#define GT911_PRODUCT_ID_LEN 4
#define GT911_PRODUCT_ID_LEN 4
/* Configuration Register Map of GT911; R/W registers */
#define GT911_CFG_BASE_ADDRESS 0x8047 // first configuration register
#define GT911_CFG_CHECKSUM 0x80FF // configuration CRC of 0x8047 to 0x80fE
#define GT911_CFG_FRESH 0x8100 // config update flag; written by host when config shall be activated/stored persistently
#define GT911_CFG_END_ADDRESS 0x8100 // last configuration register

/* Register Map of GT911 */
#define GT911_PRODUCT_ID1 0x8140
Expand All @@ -44,11 +49,11 @@ extern "C" {
#define GT911_VENDOR_ID 0x814A

#define GT911_STATUS_REG 0x814E
#define GT911_STATUS_REG_BUF 0x80
#define GT911_STATUS_REG_LARGE 0x40
#define GT911_STATUS_REG_PROX_VALID 0x20
#define GT911_STATUS_REG_HAVEKEY 0x10
#define GT911_STATUS_REG_PT_MASK 0x0F
#define GT911_STATUS_REG_BUF 0x80
#define GT911_STATUS_REG_LARGE 0x40
#define GT911_STATUS_REG_PROX_VALID 0x20
#define GT911_STATUS_REG_HAVEKEY 0x10
#define GT911_STATUS_REG_PT_MASK 0x0F

#define GT911_TRACK_ID1 0x814F
#define GT911_PT1_X_COORD_L 0x8150
Expand Down