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Add HX834x register access routines

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2617 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-04-18 23:39:55 +00:00
parent b2eac9296f
commit 933cec7399
1 changed files with 38 additions and 1 deletions
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39
configs/sam3u-ek/src/up_lcd.c
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@ -138,10 +138,19 @@
#define SAM3UEK_BPP 16 #define SAM3UEK_BPP 16
#define SAM3UEK_RGBFMT FB_FMT_RGB16_565 #define SAM3UEK_RGBFMT FB_FMT_RGB16_565
/* HX834x register select */
#define HX843X_LCD_RS (1 << 1)
/************************************************************************************** /**************************************************************************************
* Private Function Protototypes * Private Function Protototypes
**************************************************************************************/ **************************************************************************************/
/* Low-level HX834x Register access */
static void sam3u_putreg(uint16_t reg, uint16_t data);
static uint16_t sam3u_getreg(uint16_t reg);
/* LCD Data Transfer Methods */ /* LCD Data Transfer Methods */
static int sam3u_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, static int sam3u_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
@ -176,7 +185,7 @@ static int sam3u_getcontrast(struct lcd_dev_s *dev);
static int sam3u_setcontrast(struct lcd_dev_s *dev, unsigned int contrast); static int sam3u_setcontrast(struct lcd_dev_s *dev, unsigned int contrast);
/************************************************************************************** /**************************************************************************************
* Private Function Protototypes * Private Data
**************************************************************************************/ **************************************************************************************/
/* This is working memory allocated by the LCD driver for each LCD device /* This is working memory allocated by the LCD driver for each LCD device
@ -236,6 +245,34 @@ static struct lcd_dev_s g_lcddev_s =
* Private Functions * Private Functions
**************************************************************************************/ **************************************************************************************/
/**************************************************************************************
* Name: sam3u_putreg
*
* Description:
* Write to a HX834x register
*
**************************************************************************************/
static void sam3u_putreg(uint16_t reg, uint16_t data)
{
putreg16(reg, LCD_BASE);
putreg16(data, LCD_BASE + HX843X_LCD_RS);
}
/**************************************************************************************
* Name: sam3u_getreg
*
* Description:
* Read from a HX834x register
*
**************************************************************************************/
static uint16_t sam3u_getreg(uint16_t reg)
{
putreg16(reg, LCD_BASE);
return getreg16(LCD_BASE + HX843X_LCD_RS);
}
/************************************************************************************** /**************************************************************************************
* Name: sam3u_putrun * Name: sam3u_putrun
* *