Hack for font background when we cannot read from the LCD; Candidate fix for ILI9325 LCD
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4763 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
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@ -64,6 +64,8 @@
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#include "stm32_internal.h"
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#include "stm3240g-internal.h"
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#if !defined(CONFIG_STM32_ILI9320_DISABLE) || !defined(CONFIG_STM32_ILI9325_DISABLE)
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/**************************************************************************************
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* Pre-processor Definitions
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**************************************************************************************/
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@ -705,22 +707,16 @@ static int stm3240g_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
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lcdvdbg("row: %d col: %d npixels: %d\n", row, col, npixels);
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DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
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/* Configure according to the LCD type */
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/* Configure according to the LCD type. Kind of silly with only one LCD type. */
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switch (g_lcddev.type)
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{
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#if !defined(CONFIG_STM32_ILI9320_DISABLE)
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case LCD_TYPE_ILI9320:
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case LCD_TYPE_ILI9320:
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case LCD_TYPE_ILI9325:
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readsetup = stm3240g_readnosetup;
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readgram = stm3240g_readnoshift;
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break;
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#endif
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#if !defined(CONFIG_STM32_ILI9325_DISABLE)
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case LCD_TYPE_ILI9325:
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readsetup = stm3240g_readnosetup;
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readgram = stm3240g_readnoshift;
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break;
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#endif
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default: /* Shouldn't happen */
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return -ENOSYS;
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}
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@ -973,21 +969,42 @@ static inline void stm3240g_lcdinitialize(void)
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id = stm3240g_readreg(LCD_REG_0);
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lcddbg("LCD ID: %04x\n", id);
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/* Check if the ID is for the STM32_ILI9320 (or ILI9321) & STM32_ILI9325 */
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/* Check if the ID is for the STM32_ILI9320 (or ILI9321) or STM32_ILI9325 */
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#if !defined(CONFIG_STM32_ILI9320_DISABLE) && !defined(CONFIG_STM32_ILI9325_DISABLE)
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if (id == ILI9320_ID || id == ILI9321_ID || id == ILI9325_ID)
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#elif !defined(CONFIG_STM32_ILI9320_DISABLE) && defined(CONFIG_STM32_ILI9325_DISABLE)
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if (id == ILI9320_ID || id == ILI9321_ID)
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#else /* if defined(CONFIG_STM32_ILI9320_DISABLE) && !defined(CONFIG_STM32_ILI9325_DISABLE)) */
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if (id == ILI9325_ID)
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#endif
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{
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/* Save the LCD type (not actually used at for anything important) */
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#if !defined(CONFIG_STM32_ILI9320_DISABLE)
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if ((id == ILI9320_ID) || (id == ILI9321_ID))
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{
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g_lcddev.type = LCD_TYPE_ILI9320;
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# if !defined(CONFIG_STM32_ILI9325_DISABLE)
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if (id == ILI9325_ID)
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{
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g_lcddev.type = LCD_TYPE_ILI9325;
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}
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else
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# endif
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{
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g_lcddev.type = LCD_TYPE_ILI9320;
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stm3240g_writereg(LCD_REG_229, 0x8000); /* Set the internal vcore voltage */
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}
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#else /* if !defined(CONFIG_STM32_ILI9325_DISABLE) */
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g_lcddev.type = LCD_TYPE_ILI9325;
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#endif
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lcddbg("LCD type: %d\n", g_lcddev.type);
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/* Start Initial Sequence */
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stm3240g_writereg(LCD_REG_229, 0x8000); /* Set the internal vcore voltage */
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stm3240g_writereg(LCD_REG_0, 0x0001); /* Start internal OSC. */
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stm3240g_writereg(LCD_REG_1, 0x0100); /* Set SS and SM bit */
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stm3240g_writereg(LCD_REG_2, 0x0700); /* Set 1 line inversion */
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stm3240g_writereg(LCD_REG_3, 0x1030); /* Set GRAM write direction and BGR=1. */
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//stm3240g_writereg(LCD_REG_3, 0x1018); /* Set GRAM write direction and BGR=1. */
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stm3240g_writereg(LCD_REG_4, 0x0000); /* Resize register */
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stm3240g_writereg(LCD_REG_8, 0x0202); /* Set the back porch and front porch */
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stm3240g_writereg(LCD_REG_9, 0x0000); /* Set non-display area refresh cycle ISC[3:0] */
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@ -1018,19 +1035,45 @@ static inline void stm3240g_lcdinitialize(void)
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stm3240g_writereg(LCD_REG_32, 0x0000); /* GRAM horizontal Address */
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stm3240g_writereg(LCD_REG_33, 0x0000); /* GRAM Vertical Address */
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/* Adjust the Gamma Curve */
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/* Adjust the Gamma Curve (ILI9320/1) */
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#if !defined(CONFIG_STM32_ILI9320_DISABLE)
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# if !defined(CONFIG_STM32_ILI9325_DISABLE)
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if (g_lcddev.type == LCD_TYPE_ILI9320)
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# endif
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{
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stm3240g_writereg(LCD_REG_48, 0x0006);
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stm3240g_writereg(LCD_REG_49, 0x0101);
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stm3240g_writereg(LCD_REG_50, 0x0003);
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stm3240g_writereg(LCD_REG_53, 0x0106);
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stm3240g_writereg(LCD_REG_54, 0x0b02);
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stm3240g_writereg(LCD_REG_55, 0x0302);
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stm3240g_writereg(LCD_REG_56, 0x0707);
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stm3240g_writereg(LCD_REG_57, 0x0007);
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stm3240g_writereg(LCD_REG_60, 0x0600);
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stm3240g_writereg(LCD_REG_61, 0x020b);
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}
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#endif
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/* Adjust the Gamma Curve (ILI9325) */
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#if !defined(CONFIG_STM32_ILI9325_DISABLE)
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# if !defined(CONFIG_STM32_ILI9320_DISABLE)
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else
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# endif
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{
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stm3240g_writereg(LCD_REG_48, 0x0007);
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stm3240g_writereg(LCD_REG_49, 0x0302);
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stm3240g_writereg(LCD_REG_50, 0x0105);
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stm3240g_writereg(LCD_REG_53, 0x0206);
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stm3240g_writereg(LCD_REG_54, 0x0808);
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stm3240g_writereg(LCD_REG_55, 0x0206);
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stm3240g_writereg(LCD_REG_56, 0x0504);
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stm3240g_writereg(LCD_REG_57, 0x0007);
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stm3240g_writereg(LCD_REG_60, 0x0105);
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stm3240g_writereg(LCD_REG_61, 0x0808);
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}
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#endif
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stm3240g_writereg(LCD_REG_48, 0x0006);
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stm3240g_writereg(LCD_REG_49, 0x0101);
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stm3240g_writereg(LCD_REG_50, 0x0003);
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stm3240g_writereg(LCD_REG_53, 0x0106);
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stm3240g_writereg(LCD_REG_54, 0x0b02);
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stm3240g_writereg(LCD_REG_55, 0x0302);
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stm3240g_writereg(LCD_REG_56, 0x0707);
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stm3240g_writereg(LCD_REG_57, 0x0007);
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stm3240g_writereg(LCD_REG_60, 0x0600);
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stm3240g_writereg(LCD_REG_61, 0x020b);
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/* Set GRAM area */
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stm3240g_writereg(LCD_REG_80, 0x0000); /* Horizontal GRAM Start Address */
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@ -1038,6 +1081,7 @@ static inline void stm3240g_lcdinitialize(void)
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stm3240g_writereg(LCD_REG_82, 0x0000); /* Vertical GRAM Start Address */
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stm3240g_writereg(LCD_REG_83, 0x013f); /* Vertical GRAM End Address */
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stm3240g_writereg(LCD_REG_96, 0x2700); /* Gate Scan Line */
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//stm3240g_writereg(LCD_REG_96, 0xa700); /* Gate Scan Line(GS=1, scan direction is G320~G1) */
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stm3240g_writereg(LCD_REG_97, 0x0001); /* NDL,VLE, REV */
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stm3240g_writereg(LCD_REG_106, 0x0000); /* Set scrolling line */
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@ -1069,97 +1113,6 @@ static inline void stm3240g_lcdinitialize(void)
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stm3240g_writereg(LCD_REG_7, 0); /* Display off */
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}
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else
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#endif
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#if !defined(CONFIG_STM32_ILI9325_DISABLE)
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if (id == ILI9325_ID)
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{
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g_lcddev.type = LCD_TYPE_ILI9325;
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lcddbg("LCD type: %d\n", g_lcddev.type);
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/* Start Initial Sequence */
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stm3240g_writereg(LCD_REG_0, 0x0001); /* Start internal OSC. */
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stm3240g_writereg(LCD_REG_1, 0x0100); /* Set SS and SM bit */
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stm3240g_writereg(LCD_REG_2, 0x0700); /* Set 1 line inversion */
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stm3240g_writereg(LCD_REG_3, 0x1018); /* Set GRAM write direction and BGR=1. */
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stm3240g_writereg(LCD_REG_4, 0x0000); /* Resize register */
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stm3240g_writereg(LCD_REG_8, 0x0202); /* Set the back porch and front porch */
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stm3240g_writereg(LCD_REG_9, 0x0000); /* Set non-display area refresh cycle ISC[3:0] */
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stm3240g_writereg(LCD_REG_10, 0x0000); /* FMARK function */
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stm3240g_writereg(LCD_REG_12, 0x0000); /* RGB interface setting */
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stm3240g_writereg(LCD_REG_13, 0x0000); /* Frame marker Position */
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stm3240g_writereg(LCD_REG_15, 0x0000); /* RGB interface polarity */
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/* Power On sequence */
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stm3240g_writereg(LCD_REG_16, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
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stm3240g_writereg(LCD_REG_17, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
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stm3240g_writereg(LCD_REG_18, 0x0000); /* VREG1OUT voltage */
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stm3240g_writereg(LCD_REG_19, 0x0000); /* VDV[4:0] for VCOM amplitude */
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up_mdelay(200); /* Dis-charge capacitor power voltage (200ms) */
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stm3240g_writereg(LCD_REG_16, 0x17B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
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stm3240g_writereg(LCD_REG_17, 0x0137); /* DC1[2:0], DC0[2:0], VC[2:0] */
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up_mdelay(50); /* Delay 50 ms */
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stm3240g_writereg(LCD_REG_18, 0x0139); /* VREG1OUT voltage */
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up_mdelay(50); /* Delay 50 ms */
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stm3240g_writereg(LCD_REG_19, 0x1d00); /* VDV[4:0] for VCOM amplitude */
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stm3240g_writereg(LCD_REG_41, 0x0013); /* VCM[4:0] for VCOMH */
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up_mdelay(50); /* Delay 50 ms */
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stm3240g_writereg(LCD_REG_32, 0x0000); /* GRAM horizontal Address */
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stm3240g_writereg(LCD_REG_33, 0x0000); /* GRAM Vertical Address */
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/* Adjust the Gamma Curve (ILI9325) */
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stm3240g_writereg(LCD_REG_48, 0x0007);
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stm3240g_writereg(LCD_REG_49, 0x0302);
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stm3240g_writereg(LCD_REG_50, 0x0105);
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stm3240g_writereg(LCD_REG_53, 0x0206);
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stm3240g_writereg(LCD_REG_54, 0x0808);
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stm3240g_writereg(LCD_REG_55, 0x0206);
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stm3240g_writereg(LCD_REG_56, 0x0504);
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stm3240g_writereg(LCD_REG_57, 0x0007);
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stm3240g_writereg(LCD_REG_60, 0x0105);
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stm3240g_writereg(LCD_REG_61, 0x0808);
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/* Set GRAM area */
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stm3240g_writereg(LCD_REG_80, 0x0000); /* Horizontal GRAM Start Address */
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stm3240g_writereg(LCD_REG_81, 0x00EF); /* Horizontal GRAM End Address */
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stm3240g_writereg(LCD_REG_82, 0x0000); /* Vertical GRAM Start Address */
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stm3240g_writereg(LCD_REG_83, 0x013F); /* Vertical GRAM End Address */
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stm3240g_writereg(LCD_REG_96, 0xA700); /* Gate Scan Line(GS=1, scan direction is G320~G1) */
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stm3240g_writereg(LCD_REG_97, 0x0001); /* NDL,VLE, REV */
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stm3240g_writereg(LCD_REG_106, 0x0000); /* set scrolling line */
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/* Partial Display Control */
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stm3240g_writereg(LCD_REG_128, 0x0000);
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stm3240g_writereg(LCD_REG_129, 0x0000);
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stm3240g_writereg(LCD_REG_130, 0x0000);
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stm3240g_writereg(LCD_REG_131, 0x0000);
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stm3240g_writereg(LCD_REG_132, 0x0000);
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stm3240g_writereg(LCD_REG_133, 0x0000);
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/* Panel Control */
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stm3240g_writereg(LCD_REG_144, 0x0010);
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stm3240g_writereg(LCD_REG_146, 0x0000);
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stm3240g_writereg(LCD_REG_147, 0x0003);
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stm3240g_writereg(LCD_REG_149, 0x0110);
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stm3240g_writereg(LCD_REG_151, 0x0000);
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stm3240g_writereg(LCD_REG_152, 0x0000);
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/* set GRAM write direction and BGR = 1 */
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/* I/D=00 (Horizontal : increment, Vertical : decrement) */
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/* AM=1 (address is updated in vertical writing direction) */
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stm3240g_writereg(LCD_REG_3, 0x1018);
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stm3240g_writereg(LCD_REG_7, 0x0); /* display off */
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}
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else
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#endif
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{
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lcddbg("Unsupported LCD type\n");
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}
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@ -1254,3 +1207,4 @@ void stm3240g_lcdclear(uint16_t color)
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}
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}
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#endif /* !CONFIG_STM32_ILI9320_DISABLE || !CONFIG_STM32_ILI9325_DISABLE */
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