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authorJoel Bodenmann <joel@unormal.org>2012-11-12 23:51:20 +0100
committerJoel Bodenmann <joel@unormal.org>2012-11-12 23:51:20 +0100
commitf66e79b64888bafed8055e5310f97a65c891acd9 (patch)
treec0aabd60f437cc4a1e64dac41999f7857700a4cf /drivers/gdisp/ILI9320/gdisp_lld.c
parent0a8a5703913612fe8035c4dad3adb20a90dfe940 (diff)
downloaduGFX-f66e79b64888bafed8055e5310f97a65c891acd9.tar.gz
uGFX-f66e79b64888bafed8055e5310f97a65c891acd9.tar.bz2
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new ILI9320 driver - please use as template
Diffstat (limited to 'drivers/gdisp/ILI9320/gdisp_lld.c')
-rw-r--r--drivers/gdisp/ILI9320/gdisp_lld.c314
1 files changed, 157 insertions, 157 deletions
diff --git a/drivers/gdisp/ILI9320/gdisp_lld.c b/drivers/gdisp/ILI9320/gdisp_lld.c
index d17c5cb0..26fad328 100644
--- a/drivers/gdisp/ILI9320/gdisp_lld.c
+++ b/drivers/gdisp/ILI9320/gdisp_lld.c
@@ -20,7 +20,7 @@
/**
* @file drivers/gdisp/ILI9320/gdisp_lld.c
- * @brief GDISP Graphics Driver subsystem low level driver source for the SSD1289 display.
+ * @brief GDISP Graphics Driver subsystem low level driver source for the ILI9320 display.
*
* @addtogroup GDISP
* @{
@@ -35,61 +35,121 @@
/* Include the emulation code for things we don't support */
#include "gdisp_emulation.c"
-#include "ili9320_lld.c.h"
+#if defined(BOARD_OLIMEX_STM32_LCD)
+ #include "gdisp_lld_board_olimex_stm32_lcd.h"
+#else
+ #include "gdisp_lld_board_example.h"
+#endif
/*===========================================================================*/
-/* Driver interrupt handlers. */
+/* Driver local definitions. */
/*===========================================================================*/
+/* This controller is only ever used with a 240 x 320 display */
+#if defined(GDISP_SCREEN_HEIGHT)
+ #undef GDISP_SCREEN_HEIGHT
+#endif
+#if defined(GDISP_SCREEN_WIDTH)
+ #undef GDISP_SCREEN_WIDTH
+#endif
+
+#define GDISP_SCREEN_WIDTH 240
+#define GDISP_SCREEN_HEIGHT 320
+
/*===========================================================================*/
-/* Driver exported functions. */
+/* Driver exported variables. */
/*===========================================================================*/
-/* ---- Required Routines ---- */
-/*
- The following 2 routines are required.
- All other routines are optional.
-*/
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+uint32_t DISPLAY_CODE;
-/**
- * @brief Low level GDISP driver initialization.
- *
- * @notapi
- */
-bool_t GDISP_LLD(init)(void) {
-#if defined(GDISP_USE_FSMC)
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+static __inline void lld_lcdDelay(uint16_t us) {
+ chThdSleepMicroseconds(us);
+}
+
+static __inline void lld_lcdWriteIndex(uint16_t index) {
+ GDISP_LLD(write_index)(index);
+}
- /* FSMC setup for F1/F3 */
- rccEnableAHB(RCC_AHBENR_FSMCEN, 0);
+static __inline void lld_lcdWriteData(uint16_t data) {
+ GDISP_LLD(write_data)(data);
+}
- /* set pins to FSMC mode */
- IOBus busD = {GPIOD, PAL_WHOLE_PORT, 0};
- IOBus busE = {GPIOE, PAL_WHOLE_PORT, 0};
+static __inline void lld_lcdWriteReg(uint16_t lcdReg, uint16_t lcdRegValue) {
+ GDISP_LLD(write_index)(lcdReg);
+ GDISP_LLD(write_data)(lcdRegValue);
+}
- palSetBusMode(&busD, PAL_MODE_STM32_ALTERNATE_PUSHPULL );
- palSetBusMode(&busE, PAL_MODE_STM32_ALTERNATE_PUSHPULL );
+static __inline void lld_lcdWriteStreamStart(void) {
+ GDISP_REG = 0x0022;
+}
+
+static __inline void lld_lcdWriteStreamStop(void) {
- // const unsigned char FSMC_Bank = 0;
- const unsigned char FSMC_Bank = 6;
+}
- /* FSMC timing */
- FSMC_Bank1->BTCR[FSMC_Bank+1] = (10) | (10 << 8) | (10 << 16);
+static __inline void lld_lcdWriteStream(uint16_t *buffer, uint16_t size) {
+ uint16_t i;
- /* Bank1 NOR/SRAM control register configuration
- * This is actually not needed as already set by default after reset */
- FSMC_Bank1->BTCR[FSMC_Bank] = FSMC_BCR1_MWID_0 | FSMC_BCR1_WREN | FSMC_BCR1_MBKEN;
-#endif
+ for(i = 0; i < size; i++)
+ GDISP_RAM = buffer[i];
+}
+
+static __inline void lld_lcdReadStreamStart(void) {
+ GDISP_REG = 0x0022;
+}
+
+static __inline void lld_lcdReadStreamStop(void) {
+
+}
+
+static __inline void lld_lcdReadStream(uint16_t *buffer, size_t size) {
+ uint16_t i;
+ volatile uint16_t dummy;
+
+ dummy = GDISP_RAM; /* throw away first value read */
+ (void)dummy;
+
+ for(i = 0; i < size; i++)
+ buffer[i] = GDISP_RAM;
+}
+
+static __inline uint16_t lld_lcdReadReg(uint16_t lcdReg) {
+ volatile uint16_t dummy;
- palSetPadMode(GPIOE, GPIOE_TFT_RST, PAL_MODE_OUTPUT_PUSHPULL);
- palSetPad(GPIOE, GPIOE_TFT_RST);
+ GDISP_LLD(write_index)(lcdReg);
- uint32_t DISPLAY_CODE = lld_lcdReadReg(0);
+ /* fix this! */
+ //dummy = GDISP_LLD(read_data);
+ dummy = GDISP_RAM;
+ (void)dummy;
- lld_lcdWriteReg(0x0000, 0x0001); //start Int. osc
+ /* fix this! */
+ //return GDISP_LLD(read_data);
+ return GDISP_RAM;
+}
+
+bool_t GDISP_LLD(init)(void) {
+ /* Initialise your display */
+ GDISP_LLD(init_board)();
+
+ /* Hardware reset */
+ GDISP_LLD(setpin_reset)(TRUE);
+ lld_lcdDelay(1000);
+ GDISP_LLD(setpin_reset)(FALSE);
+ lld_lcdDelay(1000);
+
+ DISPLAY_CODE = lld_lcdReadReg(0);
+ lld_lcdWriteReg(0x0000, 0x0001); //start Int. osc
lld_lcdDelay(500);
lld_lcdWriteReg(0x0001, 0x0100); //Set SS bit (shift direction of outputs is from S720 to S1)
lld_lcdWriteReg(0x0002, 0x0700); //select the line inversion
- lld_lcdWriteReg(0x0003, 0x1038); //Entry mode(Horizontal : increment,Vertical : increment, AM=1)
+ lld_lcdWriteReg(0x0003, 0x1038); //Entry mode(Horizontal : increment,Vertical : increment, AM=1)
lld_lcdWriteReg(0x0004, 0x0000); //Resize control(No resizing)
lld_lcdWriteReg(0x0008, 0x0202); //front and back porch 2 lines
lld_lcdWriteReg(0x0009, 0x0000); //select normal scan
@@ -126,13 +186,12 @@ bool_t GDISP_LLD(init)(void) {
lld_lcdWriteReg(0x0051, 0x00EF); //Horizontal GRAM end Position
lld_lcdWriteReg(0x0052, 0x0000); //Vertical GRAM Start Position
lld_lcdWriteReg(0x0053, 0x013F); //Vertical GRAM end Position
-
- switch (DISPLAY_CODE) {
+ switch (DISPLAY_CODE) {
case 0x9320:
- lld_lcdWriteReg(0x0060, 0x2700); //starts scanning from G1, and 320 drive lines
- break;
- case 0x9325:
- lld_lcdWriteReg(0x0060, 0xA700); //starts scanning from G1, and 320 drive lines
+ lld_lcdWriteReg(0x0060, 0x2700); //starts scanning from G1, and 320 drive lines
+ break;
+ case 0x9325:
+ lld_lcdWriteReg(0x0060, 0xA700); //starts scanning from G1, and 320 drive lines
break;
}
@@ -147,64 +206,67 @@ bool_t GDISP_LLD(init)(void) {
lld_lcdWriteReg(0x0007, 0x0173); //display On
/* Initialise the GDISP structure */
- GDISP.Width = GDISP_SCREEN_WIDTH;
- GDISP.Height = GDISP_SCREEN_HEIGHT;
- GDISP.Orientation = GDISP_ROTATE_0;
- GDISP.Powermode = powerOn;
- GDISP.Backlight = 100;
- GDISP.Contrast = 50;
- #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
- GDISP.clipx0 = 0;
- GDISP.clipy0 = 0;
- GDISP.clipx1 = GDISP.Width;
- GDISP.clipy1 = GDISP.Height;
- #endif
+ GDISP.Width = GDISP_SCREEN_WIDTH;
+ GDISP.Height = GDISP_SCREEN_HEIGHT;
+ GDISP.Orientation = GDISP_ROTATE_0;
+ GDISP.Powermode = powerOn;
+ GDISP.Backlight = 100;
+ GDISP.Contrast = 50;
+ #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
+ GDISP.clipx0 = 0;
+ GDISP.clipy0 = 0;
+ GDISP.clipx1 = GDISP.Width;
+ GDISP.clipy1 = GDISP.Height;
+ #endif
+
return TRUE;
}
-/**
- * @brief Draws a pixel on the display.
- *
- * @param[in] x X location of the pixel
- * @param[in] y Y location of the pixel
- * @param[in] color The color of the pixel
- *
- * @notapi
- */
-void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
- #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
- if (x < GDISP.clipx0 || y < GDISP.clipy0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
- #endif
+static void lld_lcdSetCursor(uint16_t x, uint16_t y) {
+ uint32_t addr;
+
+ addr = y * 0x100 + x;
+
+ lld_lcdWriteReg(0x0020, addr & 0xff); /* low addr */
+ lld_lcdWriteReg(0x0021, (addr >> 8) & 0x1ff); /* high addr */
+}
+
+static void lld_lcdSetViewPort(uint16_t x, uint16_t y, uint16_t cx, uint16_t cy) {
+ switch(GDISP.Orientation) {
+ case GDISP_ROTATE_0:
+ lld_lcdWriteReg(0x0050, x - 1);
+ lld_lcdWriteReg(0x0051, x + cx - 2);
+ lld_lcdWriteReg(0x0052, y - 1);
+ lld_lcdWriteReg(0x0053, y + cy - 2);
+ break;
+
+ case GDISP_ROTATE_90:
+ break;
+
+ case GDISP_ROTATE_180:
+ break;
+
+ case GDISP_ROTATE_270:
+ break;
+
+ }
+
lld_lcdSetCursor(x, y);
- lld_lcdWriteReg(0x0022, color);
}
-/* ---- Optional Routines ---- */
-/*
- All the below routines are optional.
- Defining them will increase speed but everything
- will work if they are not defined.
- If you are not using a routine - turn it off using
- the appropriate GDISP_HARDWARE_XXXX macro.
- Don't bother coding for obvious similar routines if
- there is no performance penalty as the emulation software
- makes a good job of using similar routines.
- eg. If gfillarea() is defined there is little
- point in defining clear() unless the
- performance bonus is significant.
- For good performance it is suggested to implement
- fillarea() and blitarea().
-*/
+static __inline void lld_lcdResetViewPort(void) {
+ /* ToDo */
+}
+
+void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
+ #if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
+ if (x < GDISP.clipx0 || y < GDISP.clipy0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
+ #endif
+ lld_lcdSetCursor(x, y);
+ lld_lcdWriteReg(0x0022, color);
+}
#if GDISP_HARDWARE_CLEARS || defined(__DOXYGEN__)
- /**
- * @brief Clear the display.
- * @note Optional - The high level driver can emulate using software.
- *
- * @param[in] color The color of the pixel
- *
- * @notapi
- */
void GDISP_LLD(clear)(color_t color) {
unsigned i;
@@ -219,16 +281,6 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
#endif
#if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__)
- /**
- * @brief Fill an area with a color.
- * @note Optional - The high level driver can emulate using software.
- *
- * @param[in] x, y The start filled area
- * @param[in] cx, cy The width and height to be filled
- * @param[in] color The color of the fill
- *
- * @notapi
- */
void GDISP_LLD(fillarea)(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
@@ -251,18 +303,6 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
#endif
#if GDISP_HARDWARE_BITFILLS || defined(__DOXYGEN__)
- /**
- * @brief Fill an area with a bitmap.
- * @note Optional - The high level driver can emulate using software.
- *
- * @param[in] x, y The start filled area
- * @param[in] cx, cy The width and height to be filled
- * @param[in] srcx, srcy The bitmap position to start the fill from
- * @param[in] srccx The width of a line in the bitmap.
- * @param[in] buffer The pixels to use to fill the area.
- *
- * @notapi
- */
void GDISP_LLD(blitareaex)(coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t srcx, coord_t srcy, coord_t srccx, const pixel_t *buffer) {
coord_t endx, endy;
unsigned lg;
@@ -292,15 +332,6 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
#endif
#if (GDISP_NEED_PIXELREAD && GDISP_HARDWARE_PIXELREAD) || defined(__DOXYGEN__)
- /**
- * @brief Get the color of a particular pixel.
- * @note Optional.
- * @note If x,y is off the screen, the result is undefined.
- *
- * @param[in] x, y The start of the text
- *
- * @notapi
- */
color_t GDISP_LLD(getpixelcolor)(coord_t x, coord_t y) {
color_t color;
@@ -321,19 +352,6 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
#endif
#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL) || defined(__DOXYGEN__)
- /**
- * @brief Scroll vertically a section of the screen.
- * @note Optional.
- * @note If x,y + cx,cy is off the screen, the result is undefined.
- * @note If lines is >= cy, it is equivelent to a area fill with bgcolor.
- *
- * @param[in] x, y The start of the area to be scrolled
- * @param[in] cx, cy The size of the area to be scrolled
- * @param[in] lines The number of lines to scroll (Can be positive or negative)
- * @param[in] bgcolor The color to fill the newly exposed area.
- *
- * @notapi
- */
void GDISP_LLD(verticalscroll)(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) {
static color_t buf[((GDISP_SCREEN_HEIGHT > GDISP_SCREEN_WIDTH ) ? GDISP_SCREEN_HEIGHT : GDISP_SCREEN_WIDTH)];
coord_t row0, row1;
@@ -387,25 +405,6 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
#endif
#if (GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL) || defined(__DOXYGEN__)
- /**
- * @brief Driver Control
- * @details Unsupported control codes are ignored.
- * @note The value parameter should always be typecast to (void *).
- * @note There are some predefined and some specific to the low level driver.
- * @note GDISP_CONTROL_POWER - Takes a gdisp_powermode_t
- * GDISP_CONTROL_ORIENTATION - Takes a gdisp_orientation_t
- * GDISP_CONTROL_BACKLIGHT - Takes an int from 0 to 100. For a driver
- * that only supports off/on anything other
- * than zero is on.
- * GDISP_CONTROL_CONTRAST - Takes an int from 0 to 100.
- * GDISP_CONTROL_LLD - Low level driver control constants start at
- * this value.
- *
- * @param[in] what What to do.
- * @param[in] value The value to use (always cast to a void *).
- *
- * @notapi
- */
void GDISP_LLD(control)(unsigned what, void *value) {
switch(what) {
case GDISP_CONTROL_POWER:
@@ -436,7 +435,7 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
lld_lcdWriteReg(0x0013, 0x0E00); /* VDV[4:0] for VCOM amplitude */
lld_lcdWriteReg(0x0029, 0x0009); /* VCM[4:0] for VCOMH */
lld_lcdDelay(500);
- lld_lcdWriteReg(0x0007, 0x0173); /* 262K color and display ON */
+ lld_lcdWriteReg(0x0007, 0x0173); /* 262K color and display ON */
if(GDISP.Powermode != powerSleep || GDISP.Powermode != powerDeepSleep)
GDISP_LLD(init)();
break;
@@ -448,7 +447,7 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
lld_lcdWriteReg(0x0012, 0x0000); /* VREG1OUT voltage */
lld_lcdWriteReg(0x0013, 0x0000); /* VDV[4:0] for VCOM amplitude */
lld_lcdDelay(2000); /* Dis-charge capacitor power voltage */
- lld_lcdWriteReg(0x0010, 0x0002); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
+ lld_lcdWriteReg(0x0010, 0x0002); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
break;
case powerDeepSleep:
@@ -525,3 +524,4 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
#endif /* GFX_USE_GDISP */
/** @} */
+