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#include <stdlib.h>
#include <stdint.h>
#include "eos.h"
#include "soc/pwr.h"
#include "soc/i2s.h"
#include "soc/timer.h"
#include "eve/eve.h"
#include "eve/eve_touch_engine.h"
#include "egpio.h"
#include "eve.h"
#include "pwr.h"
#include "drv/fxl6408.h"
#include "drv/gt911.h"
#include "ctp.h"
#ifdef EOS_DEBUG
#include <stdio.h>
#endif
int eos_ctp_init(void) {
uint8_t wakeup_cause;
int rv, rst;
wakeup_cause = eos_pwr_wakeup_cause();
rst = (wakeup_cause == EOS_PWR_WAKE_RST);
if (rst) {
rv = eos_ctp_reset();
} else {
rv = eos_ctp_wake();
}
return rv;
}
int eos_ctp_reset(void) {
int rv;
if (eos_i2s_running() || !eos_egpio_get_val(EGPIO_PIN_DISP_SEL) || !eos_egpio_get_val(EGPIO_PIN_CTP_SEL)) return EOS_ERR_BUSY;
rv = eos_egpio_intr_disable();
if (rv) return rv;
gt911_reset();
rv = eos_egpio_intr_set();
if (rv) return rv;
return EOS_OK;
}
int eos_ctp_sleep(void) {
int rv;
if (eos_i2s_running() || !eos_egpio_get_val(EGPIO_PIN_DISP_SEL) || !eos_egpio_get_val(EGPIO_PIN_CTP_SEL)) return EOS_ERR_BUSY;
rv = eos_egpio_intr_disable();
if (rv) return rv;
rv = gt911_sleep();
if (rv) return rv;
rv = eos_egpio_fxl_set_pin(EGPIO_PIN_CTP_INT, FXL6408_REG_PULL_DIR, 0);
if (rv) return rv;
return EOS_OK;
}
int eos_ctp_wake(void) {
int rv;
if (eos_i2s_running() || !eos_egpio_get_val(EGPIO_PIN_DISP_SEL) || !eos_egpio_get_val(EGPIO_PIN_CTP_SEL)) return EOS_ERR_BUSY;
rv = eos_egpio_fxl_set_pin(EGPIO_PIN_CTP_INT, FXL6408_REG_PULL_DIR, 1);
if (rv) return rv;
gt911_wake();
rv = eos_egpio_intr_set();
if (rv) return rv;
return EOS_OK;
}
int eos_ctp_give(void) {
int rv;
if (!eos_egpio_get_val(EGPIO_PIN_DISP_SEL)) return EOS_ERR_BUSY;
if (!eos_egpio_get_val(EGPIO_PIN_CTP_SEL)) return EOS_ERR;
rv = eos_egpio_intr_disable();
if (rv) return rv;
rv = eve_select();
if (rv) return rv;
rv = eos_egpio_set_val(EGPIO_PIN_CTP_SEL, 0);
if (rv) return rv;
eve_touch_set_engine(EVE_TOUCH_ENGINE_GOODIX);
eve_deselect();
rv = eos_egpio_intr_set();
if (rv) return rv;
return EOS_OK;
}
int eos_ctp_take(void) {
int rv;
if (eos_i2s_running() || !eos_egpio_get_val(EGPIO_PIN_DISP_SEL)) return EOS_ERR_BUSY;
if (eos_egpio_get_val(EGPIO_PIN_CTP_SEL)) return EOS_ERR;
rv = eos_egpio_intr_disable();
if (rv) return rv;
rv = eve_select();
if (rv) return rv;
eve_touch_set_engine(EVE_TOUCH_ENGINE_HOST);
eve_deselect();
rv = eos_egpio_set_val(EGPIO_PIN_CTP_SEL, 1);
if (rv) return rv;
gt911_reset();
rv = eos_egpio_intr_set();
if (rv) return rv;
return EOS_OK;
}
int eos_ctp_handle_intr(void) {
uint8_t status;
uint8_t points[GT911_SIZE_PBUF * GT911_MAX_POINTS];
static int clear_tag0 = 0;
int i, num_points;
int rv;
uint32_t start;
rv = gt911_get_status(&status);
if (rv) return rv;
if (!(status & 0x80)) return 0;
num_points = status & 0xf;
if (num_points > 5) {
rv = EOS_ERR;
goto handle_intr_fin;
}
rv = eve_select();
if (rv) goto handle_intr_fin;
start = eos_get_tick();
while (!eve_touch_ehost_ready()) {
if (eos_tdelta_ms(start) > EVE_CMD_EXEC_TO) break;
}
if (eos_tdelta_ms(start) > EVE_CMD_EXEC_TO) {
rv = EOS_ERR_TIMEOUT;
eve_deselect();
goto handle_intr_fin;
}
if (num_points) {
if (clear_tag0) {
eve_touch_clear_tag0();
clear_tag0 = 0;
}
rv = gt911_get_points(num_points, points);
if (rv) {
rv = EOS_ERR;
eve_deselect();
goto handle_intr_fin;
}
for (i=0; i<num_points; i++) {
uint8_t *point_buf;
uint8_t point_id;
uint16_t point_x;
uint16_t point_y;
point_buf = points + GT911_SIZE_PBUF * i;
point_id = point_buf[0];
point_x = point_buf[1] | (point_buf[2] << 8);
point_y = point_buf[3] | (point_buf[4] << 8);
eve_touch_ehost_enter(point_id, point_x, point_y);
}
} else {
eve_touch_ehost_enter(0, 0x8000, 0x8000);
clear_tag0 = 1;
}
eve_touch_ehost_end();
eve_deselect();
handle_intr_fin:
gt911_set_status(0);
if (rv) {
#ifdef EOS_DEBUG
printf("CTP HANDLE INTR ERR:%d\n", rv);
#endif
return rv;
}
return 1;
}
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