From c44897fda572cf8837b4535a6d1aaad4605c14af Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Thu, 18 Nov 2021 03:18:18 +0100
Subject: eve sleep improved

---
 fw/fe310/eos/board.h         |  2 +-
 fw/fe310/eos/eve/eve.c       | 32 +++++++++++++++++++-------------
 fw/fe310/eos/eve/eve_touch.c | 11 +++++++++--
 fw/fe310/eos/eve/eve_touch.h |  2 ++
 fw/fe310/eos/i2c/bq25895.c   |  2 +-
 5 files changed, 32 insertions(+), 17 deletions(-)

diff --git a/fw/fe310/eos/board.h b/fw/fe310/eos/board.h
index 5509f78..611751b 100644
--- a/fw/fe310/eos/board.h
+++ b/fw/fe310/eos/board.h
@@ -38,7 +38,7 @@
 
 #define I2S_IDLE_CYCLES         8
 
-#define EVE_GPIO_DIR            0x0f
+#define EVE_GPIO_DIR            0xf
 
 #define EVE_GPIO_CAM            0
 #define EVE_GPIO_EXT            1
diff --git a/fw/fe310/eos/eve/eve.c b/fw/fe310/eos/eve/eve.c
index 0fb55d4..3447d6b 100644
--- a/fw/fe310/eos/eve/eve.c
+++ b/fw/fe310/eos/eve/eve.c
@@ -13,7 +13,6 @@ static uint16_t cmd_offset;
 static char dl_burst;
 static uint32_t dl_addr;
 
-static uint8_t brigtness;
 static uint8_t power_state;
 
 void eve_command(uint8_t command, uint8_t parameter) {
@@ -323,37 +322,44 @@ void eve_gpio_set_dir(uint8_t dir) {
 }
 
 void eve_active(void) {
+    uint16_t gpiox;
+
     eve_command(EVE_ACTIVE, 0);
-    if (power_state == EVE_PSTATE_SLEEP) eve_time_sleep(40);
 
-    eve_write8(REG_PWM_DUTY, brigtness);
-    if (power_state != EVE_PSTATE_SLEEP) return;
+    if (power_state == EVE_PSTATE_SLEEP) {
+        eve_time_sleep(40);
+        eve_touch_active();
+    }
 
-    eve_write8(REG_TOUCH_MODE, EVE_TMODE_CONTINUOUS);
-    eve_write8(REG_CTOUCH_EXTENDED, 0x00);
+    gpiox = eve_read16(REG_GPIOX) | 0x8000;
+    eve_write16(REG_GPIOX, gpiox);
 
     power_state = EVE_PSTATE_ACTIVE;
 }
 
 void eve_standby(void) {
+    uint16_t gpiox;
+
     if (power_state != EVE_PSTATE_ACTIVE) return;
 
-    brigtness = eve_read8(REG_PWM_DUTY);
+    gpiox = eve_read16(REG_GPIOX) & ~0x8000;
+    eve_write16(REG_GPIOX, gpiox);
+
     eve_command(EVE_STANDBY, 0);
 
     power_state = EVE_PSTATE_STANDBY;
 }
 
 void eve_sleep(void) {
+    uint16_t gpiox;
+
     if (power_state != EVE_PSTATE_ACTIVE) return;
 
-    brigtness = eve_read8(REG_PWM_DUTY);
-    eve_write8(REG_PWM_DUTY, 0x0);
+    gpiox = eve_read16(REG_GPIOX) & ~0x8000;
+    eve_write16(REG_GPIOX, gpiox);
 
-    eve_write8(REG_CTOUCH_EXTENDED, 0x01);
-    eve_write8(REG_TOUCH_MODE, EVE_TMODE_OFF);
+    eve_touch_sleep();
 
-    eve_time_sleep(500);
     eve_command(EVE_SLEEP, 0);
 
     power_state = EVE_PSTATE_SLEEP;
@@ -394,7 +400,7 @@ static int _init(int touch_calibrate, uint32_t *touch_matrix, uint8_t gpio_dir)
 
     eve_write8(REG_PWM_DUTY, 0x00);
     eve_write16(REG_GPIOX_DIR, 0x8000 | (gpio_dir & 0x0f));
-    eve_write16(REG_GPIOX, 0);
+    eve_write16(REG_GPIOX, 0x8000);
 
     /* initialize display */
     eve_write16(REG_HCYCLE,  EVE_HCYCLE);   /* total number of clocks per line, incl front/back porch */
diff --git a/fw/fe310/eos/eve/eve_touch.c b/fw/fe310/eos/eve/eve_touch.c
index 77a0bf9..035e122 100644
--- a/fw/fe310/eos/eve/eve_touch.c
+++ b/fw/fe310/eos/eve/eve_touch.c
@@ -300,11 +300,18 @@ void eve_handle_time(void) {
     }
 }
 
+void eve_touch_active(void) {
+    eve_write8(REG_TOUCH_MODE, EVE_TMODE_CONTINUOUS);
+}
+
+void eve_touch_sleep(void) {
+    eve_write8(REG_TOUCH_MODE, EVE_TMODE_OFF);
+}
+
 static void _init(int touch_calibrate, uint32_t *touch_matrix) {
     /* configure touch */
-    eve_write16(REG_TOUCH_CONFIG, 0xb81);                   /* enable touch low power mode: 0xb81 - default: 0x381 */
+    eve_write16(REG_TOUCH_CONFIG, 0x381);                   /* default */
     eve_write8(REG_TOUCH_MODE, EVE_TMODE_CONTINUOUS);       /* enable touch */
-    eve_write16(REG_TOUCH_RZTHRESH, EVE_TOUCH_RZTHRESH);    /* eliminate any false touches */
 
     if (touch_calibrate) {
         eve_write8(REG_PWM_DUTY, 0x40);
diff --git a/fw/fe310/eos/eve/eve_touch.h b/fw/fe310/eos/eve/eve_touch.h
index 148ed48..074d37a 100644
--- a/fw/fe310/eos/eve/eve_touch.h
+++ b/fw/fe310/eos/eve/eve_touch.h
@@ -101,6 +101,8 @@ typedef void (*eve_touch_handler_t) (EVETouch *, uint16_t, uint8_t, void *);
 void eve_handle_touch(void);
 void eve_handle_time(void);
 
+void eve_touch_active(void);
+void eve_touch_sleep(void);
 void eve_touch_init(uint8_t wakeup_cause, int touch_calibrate, uint32_t *touch_matrix);
 void eve_touch_set_handler(eve_touch_handler_t handler, void *handler_param);
 EVETouch *eve_touch_get(int i);
diff --git a/fw/fe310/eos/i2c/bq25895.c b/fw/fe310/eos/i2c/bq25895.c
index 2b45f88..85b162b 100644
--- a/fw/fe310/eos/i2c/bq25895.c
+++ b/fw/fe310/eos/i2c/bq25895.c
@@ -22,7 +22,7 @@ void eos_bq25895_init(uint8_t wakeup_cause) {
         if (ret) printf("I2C ERROR 0x07\n");
         ret = eos_i2c_write8(BQ25895_ADDR, 0x00, 0x28);   // 2.1A input current
         if (ret) printf("I2C ERROR 0x00\n");
-        ret = eos_i2c_write8(BQ25895_ADDR, 0x02, 0x20);   // disaable MaxCharge, ICO and
+        ret = eos_i2c_write8(BQ25895_ADDR, 0x02, 0x30);   // enable ICO, disaable MaxCharge and D+/D-
         if (ret) printf("I2C ERROR 0x02\n");
     }
 
-- 
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