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Diffstat (limited to 'code/fe310/eos/eve/eve.c')
-rw-r--r--code/fe310/eos/eve/eve.c209
1 files changed, 127 insertions, 82 deletions
diff --git a/code/fe310/eos/eve/eve.c b/code/fe310/eos/eve/eve.c
index 1a51891..47b07c9 100644
--- a/code/fe310/eos/eve/eve.c
+++ b/code/fe310/eos/eve/eve.c
@@ -9,6 +9,8 @@
static char _cmd_burst;
static uint16_t _cmd_offset;
static uint32_t _dl_addr;
+static uint32_t *_touch_calib;
+static uint8_t _brigtness;
void eve_command(uint8_t command, uint8_t parameter) {
eve_spi_cs_set();
@@ -67,16 +69,8 @@ void eve_write32(uint32_t addr, uint32_t data) {
eve_spi_cs_clear();
}
-void eve_active(void) {
- eve_command(EVE_ACTIVE, 0);
-}
-
-void eve_brightness(uint8_t b) {
- eve_write8(REG_PWM_DUTY, b);
-}
-
static void _dl_inc(uint32_t i) {
- _dl_addr += i;
+ _dl_addr += i;
}
void eve_dl_start(uint32_t addr) {
@@ -97,8 +91,8 @@ uint32_t eve_dl_get_addr(void) {
}
static void _cmd_inc(uint16_t i) {
- _cmd_offset += i;
- _cmd_offset &= 0x0fff;
+ _cmd_offset += i;
+ _cmd_offset &= 0x0fff;
}
static void _cmd_begin(uint32_t command) {
@@ -107,7 +101,7 @@ static void _cmd_begin(uint32_t command) {
if (_cmd_burst) {
flags = EVE_SPI_FLAG_TX;
} else {
- uint32_t addr = EVE_RAM_CMD + _cmd_offset;
+ uint32_t addr = EVE_RAM_CMD + _cmd_offset;
eve_spi_cs_set();
eve_spi_xchg24(addr | EVE_MEM_WRITE, 0);
}
@@ -177,17 +171,17 @@ void eve_cmd(uint32_t cmd, const char *fmt, ...) {
}
i++;
}
- va_end(argv);
+ va_end(argv);
/* padding */
- i = _cmd_offset & 3; /* equivalent to _cmd_offset % 4 */
+ i = _cmd_offset & 3; /* equivalent to _cmd_offset % 4 */
if (i) {
- i = 4 - i; /* 3, 2 or 1 */
+ i = 4 - i; /* 3, 2 or 1 */
_cmd_inc(i);
- while (i > 0) {
+ while (i > 0) {
eve_spi_xchg8(0, flags);
- i--;
- }
+ i--;
+ }
}
_cmd_end();
}
@@ -202,14 +196,14 @@ void eve_cmd_dl(uint32_t dl) {
}
int eve_cmd_done(void) {
- uint16_t r = eve_read16(REG_CMD_READ);
+ uint16_t r = eve_read16(REG_CMD_READ);
if (r == 0xfff) {
- _cmd_offset = 0;
- eve_write8(REG_CPURESET, 1);
- eve_write16(REG_CMD_READ, 0);
- eve_write16(REG_CMD_WRITE, 0);
- eve_write16(REG_CMD_DL, 0);
- eve_write8(REG_CPURESET, 0);
+ _cmd_offset = 0;
+ eve_write8(REG_CPURESET, 1);
+ eve_write16(REG_CMD_READ, 0);
+ eve_write16(REG_CMD_WRITE, 0);
+ eve_write16(REG_CMD_DL, 0);
+ eve_write8(REG_CPURESET, 0);
return -1;
}
return (r == _cmd_offset);
@@ -228,7 +222,7 @@ int eve_cmd_exec(int w) {
}
void eve_cmd_burst_start(void) {
- uint32_t addr = EVE_RAM_CMD + _cmd_offset;
+ uint32_t addr = EVE_RAM_CMD + _cmd_offset;
eve_spi_cs_set();
eve_spi_xchg24(addr | EVE_MEM_WRITE, EVE_SPI_FLAG_TX);
_cmd_burst = 1;
@@ -240,69 +234,108 @@ void eve_cmd_burst_end(void) {
_cmd_burst = 0;
}
-int eve_init(uint32_t *touch_transform) {
- uint8_t chipid = 0;
- uint16_t timeout = 0;
+void eve_active(void){
+ eve_command(EVE_ACTIVE, 0);
+}
+
+void eve_standby(void) {
+ eve_command(EVE_STANDBY, 0);
+}
+
+void eve_sleep(void) {
+ _brigtness = eve_read8(REG_PWM_DUTY);
+ eve_write8(REG_PWM_DUTY, 0x0);
+
+ eve_write8(REG_CTOUCH_EXTENDED, 0x01);
+ eve_write8(REG_TOUCH_MODE, EVE_TMODE_OFF);
+
+ eve_time_sleep(500);
+ eve_command(EVE_SLEEP, 0);
+}
+
+void eve_wake(void) {
+ eve_command(EVE_ACTIVE, 0); /* start EVE */
+ eve_time_sleep(40);
+
+ eve_write8(REG_TOUCH_MODE, EVE_TMODE_CONTINUOUS);
+ eve_write8(REG_CTOUCH_EXTENDED, 0x00);
+
+ eve_write8(REG_PWM_DUTY, _brigtness);
+}
+
+void eve_brightness(uint8_t b) {
+ eve_write8(REG_PWM_DUTY, b);
+}
+
+void eve_set_touch_calibration(uint32_t *matrix) {
+ _touch_calib = matrix;
+}
+
+static int _init(void) {
+ uint8_t chipid = 0;
+ uint16_t timeout = 0;
eve_command(EVE_RST_PULSE, 0);
eve_command(EVE_CLKEXT, 0);
eve_command(EVE_ACTIVE, 0); /* start EVE */
while (chipid != 0x7C) { /* if chipid is not 0x7c, continue to read it until it is, EVE needs a moment for it's power on self-test and configuration */
- eve_sleep(1);
- chipid = eve_read8(REG_ID);
- timeout++;
- if (timeout > 400) return EVE_ERR;
- }
+ eve_time_sleep(1);
+ chipid = eve_read8(REG_ID);
+ timeout++;
+ if (timeout > 400) return EVE_ERR;
+ }
eve_write8(REG_PWM_DUTY, 0);
+ eve_write16(REG_GPIOX, 0);
/* Initialize Display */
- eve_write16(REG_HCYCLE, EVE_HCYCLE); /* total number of clocks per line, incl front/back porch */
- eve_write16(REG_HOFFSET, EVE_HOFFSET); /* start of active line */
- eve_write16(REG_HSYNC0, EVE_HSYNC0); /* start of horizontal sync pulse */
- eve_write16(REG_HSYNC1, EVE_HSYNC1); /* end of horizontal sync pulse */
- eve_write16(REG_VCYCLE, EVE_VCYCLE); /* total number of lines per screen, including pre/post */
- eve_write16(REG_VOFFSET, EVE_VOFFSET); /* start of active screen */
- eve_write16(REG_VSYNC0, EVE_VSYNC0); /* start of vertical sync pulse */
- eve_write16(REG_VSYNC1, EVE_VSYNC1); /* end of vertical sync pulse */
- eve_write8(REG_SWIZZLE, EVE_SWIZZLE); /* FT8xx output to LCD - pin order */
- eve_write8(REG_PCLK_POL, EVE_PCLKPOL); /* LCD data is clocked in on this PCLK edge */
- eve_write8(REG_CSPREAD, EVE_CSPREAD); /* helps with noise, when set to 1 fewer signals are changed simultaneously, reset-default: 1 */
- eve_write16(REG_HSIZE, EVE_HSIZE); /* active display width */
- eve_write16(REG_VSIZE, EVE_VSIZE); /* active display height */
-
- /* do not set PCLK yet - wait for just after the first display list */
-
- /* configure Touch */
- eve_write8(REG_TOUCH_MODE, EVE_TMODE_CONTINUOUS); /* enable touch */
- eve_write16(REG_TOUCH_RZTHRESH, EVE_TOUCH_RZTHRESH); /* eliminate any false touches */
-
- /* disable Audio for now */
- eve_write8(REG_VOL_PB, 0x00); /* turn recorded audio volume down */
- eve_write8(REG_VOL_SOUND, 0x00); /* turn synthesizer volume off */
- eve_write16(REG_SOUND, 0x6000); /* set synthesizer to mute */
-
- /* write a basic display-list to get things started */
+ eve_write16(REG_HCYCLE, EVE_HCYCLE); /* total number of clocks per line, incl front/back porch */
+ eve_write16(REG_HOFFSET, EVE_HOFFSET); /* start of active line */
+ eve_write16(REG_HSYNC0, EVE_HSYNC0); /* start of horizontal sync pulse */
+ eve_write16(REG_HSYNC1, EVE_HSYNC1); /* end of horizontal sync pulse */
+ eve_write16(REG_VCYCLE, EVE_VCYCLE); /* total number of lines per screen, including pre/post */
+ eve_write16(REG_VOFFSET, EVE_VOFFSET); /* start of active screen */
+ eve_write16(REG_VSYNC0, EVE_VSYNC0); /* start of vertical sync pulse */
+ eve_write16(REG_VSYNC1, EVE_VSYNC1); /* end of vertical sync pulse */
+ eve_write8(REG_SWIZZLE, EVE_SWIZZLE); /* FT8xx output to LCD - pin order */
+ eve_write8(REG_PCLK_POL, EVE_PCLKPOL); /* LCD data is clocked in on this PCLK edge */
+ eve_write8(REG_CSPREAD, EVE_CSPREAD); /* helps with noise, when set to 1 fewer signals are changed simultaneously, reset-default: 1 */
+ eve_write16(REG_HSIZE, EVE_HSIZE); /* active display width */
+ eve_write16(REG_VSIZE, EVE_VSIZE); /* active display height */
+
+ /* do not set PCLK yet - wait for just after the first display list */
+
+ /* disable Audio */
+ eve_write8(REG_VOL_PB, 0x00); /* turn recorded audio volume down */
+ eve_write8(REG_VOL_SOUND, 0x00); /* turn synthesizer volume off */
+ eve_write16(REG_SOUND, 0x6000); /* set synthesizer to mute */
+
+ /* write a basic display-list to get things started */
eve_dl_start(EVE_RAM_DL);
eve_dl_write(CLEAR_COLOR_RGB(0,0,0));
- eve_dl_write(CLEAR(1,1,1));
+ eve_dl_write(CLEAR(1,1,1));
eve_dl_write(DISPLAY());
eve_dl_swap();
- /* nothing is being displayed yet... the pixel clock is still 0x00 */
- eve_write8(REG_GPIO, 0x80); /* enable the DISP signal to the LCD panel, it is set to output in REG_GPIO_DIR by default */
- eve_write8(REG_PCLK, EVE_PCLK); /* now start clocking data to the LCD panel */
-
- if (touch_transform) {
- eve_write32(REG_TOUCH_TRANSFORM_A, touch_transform[0]);
- eve_write32(REG_TOUCH_TRANSFORM_B, touch_transform[1]);
- eve_write32(REG_TOUCH_TRANSFORM_C, touch_transform[2]);
- eve_write32(REG_TOUCH_TRANSFORM_D, touch_transform[3]);
- eve_write32(REG_TOUCH_TRANSFORM_E, touch_transform[4]);
- eve_write32(REG_TOUCH_TRANSFORM_F, touch_transform[5]);
+ /* nothing is being displayed yet... the pixel clock is still 0x00 */
+ eve_write16(REG_GPIOX, 0x8000); /* enable the DISP signal to the LCD panel, it is set to output in REG_GPIOX_DIR by default */
+ eve_write8(REG_PCLK, EVE_PCLK); /* now start clocking data to the LCD panel */
+
+ /* configure Touch */
+ eve_write16(REG_TOUCH_CONFIG, 0xb81); /* enable touch low power mode: 0xb81 - default: 0x381 */
+ eve_write8(REG_TOUCH_MODE, EVE_TMODE_CONTINUOUS); /* enable touch */
+ eve_write16(REG_TOUCH_RZTHRESH, EVE_TOUCH_RZTHRESH); /* eliminate any false touches */
+
+ if (_touch_calib) {
+ eve_write32(REG_TOUCH_TRANSFORM_A, _touch_calib[0]);
+ eve_write32(REG_TOUCH_TRANSFORM_B, _touch_calib[1]);
+ eve_write32(REG_TOUCH_TRANSFORM_C, _touch_calib[2]);
+ eve_write32(REG_TOUCH_TRANSFORM_D, _touch_calib[3]);
+ eve_write32(REG_TOUCH_TRANSFORM_E, _touch_calib[4]);
+ eve_write32(REG_TOUCH_TRANSFORM_F, _touch_calib[5]);
} else {
- uint32_t touch_transform[6];
+ uint32_t touch_calib[6];
eve_cmd_dl(CMD_DLSTART);
eve_cmd_dl(CLEAR_COLOR_RGB(0,0,0));
eve_cmd_dl(CLEAR(1,1,1));
@@ -312,25 +345,37 @@ int eve_init(uint32_t *touch_transform) {
eve_cmd_dl(CMD_SWAP);
eve_cmd_exec(1);
- touch_transform[0] = eve_read32(REG_TOUCH_TRANSFORM_A);
- touch_transform[1] = eve_read32(REG_TOUCH_TRANSFORM_B);
- touch_transform[2] = eve_read32(REG_TOUCH_TRANSFORM_C);
- touch_transform[3] = eve_read32(REG_TOUCH_TRANSFORM_D);
- touch_transform[4] = eve_read32(REG_TOUCH_TRANSFORM_E);
- touch_transform[5] = eve_read32(REG_TOUCH_TRANSFORM_F);
+ touch_calib[0] = eve_read32(REG_TOUCH_TRANSFORM_A);
+ touch_calib[1] = eve_read32(REG_TOUCH_TRANSFORM_B);
+ touch_calib[2] = eve_read32(REG_TOUCH_TRANSFORM_C);
+ touch_calib[3] = eve_read32(REG_TOUCH_TRANSFORM_D);
+ touch_calib[4] = eve_read32(REG_TOUCH_TRANSFORM_E);
+ touch_calib[5] = eve_read32(REG_TOUCH_TRANSFORM_F);
- printf("TOUCH TRANSFORM:{0x%x,0x%x,0x%x,0x%x,0x%x,0x%x}\n", touch_transform[0], touch_transform[1], touch_transform[2], touch_transform[3], touch_transform[4], touch_transform[5]);
+ printf("TOUCH TRANSFORM:{0x%x,0x%x,0x%x,0x%x,0x%x,0x%x}\n", touch_calib[0], touch_calib[1], touch_calib[2], touch_calib[3], touch_calib[4], touch_calib[5]);
}
- eve_write32(REG_CTOUCH_EXTENDED, 0x00);
+ eve_write8(REG_CTOUCH_EXTENDED, 0x00);
+
eve_cmd(CMD_SETROTATE, "w", 2);
eve_cmd_exec(1);
+ return EVE_OK;
+}
+
+int eve_init(int pwr_on) {
+ if (pwr_on) {
+ int rv = _init();
+ if (rv) return rv;
+ } else {
+ eve_wake();
+ }
+
eve_init_touch();
eve_init_track();
eve_init_platform();
- eve_sleep(500);
+ eve_time_sleep(500);
eve_command(EVE_STANDBY, 0);
return EVE_OK;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 12:29:39 +0000