touch controller/eve fixes

1 files changed, 149 insertions, 0 deletions

diff --git a/fw/fe310/eos/eve_eos.c b/fw/fe310/eos/eve_eos.c
new file mode 100644
index 0000000..351cd79
--- /dev/null
+++ b/fw/fe310/eos/eve_eos.c
@@ -0,0 +1,149 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "platform.h"
+
+#include "eos.h"
+#include "interrupt.h"
+#include "event.h"
+#include "pwr.h"
+
+#include "board.h"
+
+#include "eve/eve.h"
+#include "eve/eve_touch_engine.h"
+
+#include "eve_eos.h"
+
+static int _run;
+
+static void handle_time(unsigned char type) {
+    if (_run) {
+        eve_spi_start();
+        eve_handle_time();
+        eve_spi_stop();
+    }
+}
+
+static void handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    if (_run) {
+        eve_spi_start();
+        eve_handle_intr();
+        eve_spi_stop();
+
+        GPIO_REG(GPIO_LOW_IE) |= (1 << EVE_PIN_INTR);
+    }
+}
+
+static void handle_intr(void) {
+    GPIO_REG(GPIO_LOW_IE) &= ~(1 << EVE_PIN_INTR);
+    GPIO_REG(GPIO_LOW_IP) = (1 << EVE_PIN_INTR);
+    eos_evtq_push_isr(EOS_EVT_EVE | EVE_ETYPE_INTR, NULL, 0);
+}
+
+
+static void _start(void) {
+    eve_touch_start();
+    eve_start();
+
+    GPIO_REG(GPIO_INPUT_EN)     |=  (1 << EVE_PIN_INTR);
+    GPIO_REG(GPIO_OUTPUT_EN)    &= ~(1 << EVE_PIN_INTR);
+
+    GPIO_REG(GPIO_LOW_IE)       |=  (1 << EVE_PIN_INTR);
+
+    eos_intr_enable(INT_GPIO_BASE + EVE_PIN_INTR);
+    _run = 1;
+}
+
+static void _stop(void) {
+    _run = 0;
+    eos_intr_disable(INT_GPIO_BASE + EVE_PIN_INTR);
+
+    GPIO_REG(GPIO_LOW_IE)       &= ~(1 << EVE_PIN_INTR);
+
+    eve_touch_stop();
+    eve_stop();
+}
+
+int eos_eve_init(uint8_t wakeup_cause, uint8_t gpio_dir, const uint32_t *touch_matrix) {
+    int rst = (wakeup_cause == EOS_PWR_WAKE_RST);
+    int rv = EVE_OK;
+
+    eve_spi_start();
+    if (rst) {
+        rv = eve_init(gpio_dir);
+        if (!rv) eve_touch_init_engine(touch_matrix);
+    } else {
+        eve_activate();
+    }
+    eve_spi_stop();
+
+    if (rv) return EOS_ERR;
+
+    eve_touch_init();
+
+    eos_evtq_set_handler(EOS_EVT_EVE, handle_evt);
+    eos_timer_set_handler(EOS_TIMER_ETYPE_UI, handle_time);
+    eos_intr_set_handler(INT_GPIO_BASE + EVE_PIN_INTR, handle_intr);
+    eos_intr_set_priority(INT_GPIO_BASE + EVE_PIN_INTR, IRQ_PRIORITY_EVE);
+
+    return EOS_OK;
+}
+
+void eos_eve_calibrate(void) {
+    uint32_t touch_matrix[6];
+    int r;
+
+    eve_spi_start();
+
+    eve_brightness(0x40);
+    eve_touch_set_extended(0);
+
+    eve_cmd(CMD_TEXT, "hhhhs", EVE_HSIZE/2, EVE_VSIZE/2, 27, EVE_OPT_CENTER, "Please tap on the dot.");
+    eve_cmd(CMD_CALIBRATE, "w", 0);
+    eve_cmd_exec(0);
+
+    do {
+        r = eve_cmd_done();
+        if (r < 0) break;
+        eve_spi_stop();
+        eos_evtq_exec();
+        eve_spi_start();
+    } while (!r);
+
+    eve_touch_set_extended(1);
+    eve_brightness(0);
+
+    touch_matrix[0] = eve_read32(REG_TOUCH_TRANSFORM_A);
+    touch_matrix[1] = eve_read32(REG_TOUCH_TRANSFORM_B);
+    touch_matrix[2] = eve_read32(REG_TOUCH_TRANSFORM_C);
+    touch_matrix[3] = eve_read32(REG_TOUCH_TRANSFORM_D);
+    touch_matrix[4] = eve_read32(REG_TOUCH_TRANSFORM_E);
+    touch_matrix[5] = eve_read32(REG_TOUCH_TRANSFORM_F);
+
+    eve_spi_stop();
+
+    printf("TOUCH MATRIX:\n");
+    printf("uint32_t touch_matrix[6] = {0x%x,0x%x,0x%x,0x%x,0x%x,0x%x}\n", touch_matrix[0], touch_matrix[1], touch_matrix[2], touch_matrix[3], touch_matrix[4], touch_matrix[5]);
+}
+
+int eos_eve_run(uint8_t wakeup_cause) {
+    eve_spi_start();
+    _start();
+    eve_start_clk();
+    eve_spi_stop();
+
+    return EOS_OK;
+}
+
+void eos_eve_start(void) {
+    eve_spi_start();
+    _start();
+    eve_spi_stop();
+}
+
+void eos_eve_stop(void) {
+    eve_spi_start();
+    _stop();
+    eve_spi_stop();
+}