diff options
author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-09-28 19:24:46 +0000 |
---|---|---|
committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-09-28 19:24:46 +0000 |
commit | f5fe5b29490d863ea78f4f16f876f08babd6d8a5 (patch) | |
tree | b78d5cf4d68cbe289b7d5e17efc1f24046db992a /nuttx/drivers/lcd | |
parent | 42659da2071819559da08116cf1ada64d10b5f80 (diff) | |
download | px4-nuttx-f5fe5b29490d863ea78f4f16f876f08babd6d8a5.tar.gz px4-nuttx-f5fe5b29490d863ea78f4f16f876f08babd6d8a5.tar.bz2 px4-nuttx-f5fe5b29490d863ea78f4f16f876f08babd6d8a5.zip |
Turn off LCD reading on Shenzhou board (needs some TLC before it will be usable)
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5202 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/drivers/lcd')
-rw-r--r-- | nuttx/drivers/lcd/ssd1289.c | 103 |
1 files changed, 92 insertions, 11 deletions
diff --git a/nuttx/drivers/lcd/ssd1289.c b/nuttx/drivers/lcd/ssd1289.c index f5f11b87d..e42b5bded 100644 --- a/nuttx/drivers/lcd/ssd1289.c +++ b/nuttx/drivers/lcd/ssd1289.c @@ -229,8 +229,8 @@ /* Debug ******************************************************************************/ #ifdef CONFIG_DEBUG_LCD -# define lcddbg dbg -# define lcdvdbg vdbg +# define lcddbg dbg +# define lcdvdbg vdbg #else # define lcddbg(x...) # define lcdvdbg(x...) @@ -253,6 +253,16 @@ struct ssd1289_dev_s FAR struct ssd1289_lcd_s *lcd; /* The contained platform-specific, LCD interface */ uint8_t power; /* Current power setting */ + /* These fields simplify and reduce debug output */ + +#ifdef CONFIG_DEBUG_LCD + bool put; /* Last raster operation was a putrun */ + fb_coord_t firstrow; /* First row of the run */ + fb_coord_t lastrow; /* Last row of the run */ + fb_coord_t col; /* Column of the run */ + size_t npixels; /* Length of the run */ +#endif + /* This is working memory allocated by the LCD driver for each LCD device * and for each color plane. This memory will hold one raster line of data. * The size of the allocated run buffer must therefore be at least @@ -287,6 +297,19 @@ static void ssd1289_setcursor(FAR struct ssd1289_lcd_s *lcd, uint16_t column, /* LCD Data Transfer Methods */ +#if 0 /* Sometimes useful */ +static void ssd1289_dumprun(FAR const char *msg, FAR uint16_t *run, size_t npixels); +#else +# define ssd1289_dumprun(m,r,n) +#endif + +#ifdef CONFIG_DEBUG_LCD +static void ssd1289_showrun(FAR struct ssd1289_dev_s *priv, fb_coord_t row, + fb_coord_t col, size_t npixels, bool put); +#else +# define ssd1289_showrun(p,r,c,n,b) +#endif + static int ssd1289_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, size_t npixels); static int ssd1289_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, @@ -489,6 +512,64 @@ static void ssd1289_dumprun(FAR const char *msg, FAR uint16_t *run, size_t npixe #endif /************************************************************************************** + * Name: ssd1289_showrun + * + * Description: + * When LCD debug is enabled, try to reduce then amount of ouptut data generated by + * ssd1289_putrun and ssd1289_getrun + * + **************************************************************************************/ + +#ifdef CONFIG_DEBUG_LCD +static void ssd1289_showrun(FAR struct ssd1289_dev_s *priv, fb_coord_t row, + fb_coord_t col, size_t npixels, bool put) +{ + fb_coord_t nextrow = priv->lastrow + 1; + + /* Has anything changed (other than the row is the next row in the sequence)? */ + + if (put == priv->put && row == nextrow && col == priv->col && + npixels == priv->npixels) + { + /* No, just update the last row */ + + priv->lastrow = nextrow; + } + else + { + /* Yes... then this is the end of the preceding sequence. Output the last run + * (if there were more than one run in the sequence). + */ + + if (priv->firstrow != priv->lastrow) + { + lcddbg("...\n"); + lcddbg("%s row: %d col: %d npixels: %d\n", + priv->put ? "PUT" : "GET", + priv->lastrow, priv->col, priv->npixels); + } + + /* And we are starting a new sequence. Output the first run of the + * new sequence + */ + + lcddbg("%s row: %d col: %d npixels: %d\n", + put ? "PUT" : "GET", row, col, npixels); + + /* And save information about the run so that we can detect continuations + * of the sequence. + */ + + priv->put = put; + priv->firstrow = row; + priv->lastrow = row; + priv->col = col; + priv->npixels = npixels; + } +} +#endif + +/************************************************************************************** * Name: ssd1289_putrun * * Description: @@ -512,7 +593,7 @@ static int ssd1289_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buf /* Buffer must be provided and aligned to a 16-bit address boundary */ - lcdvdbg("row: %d col: %d npixels: %d\n", row, col, npixels); + ssd1289_showrun(priv, row, col, npixels, true); DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0); /* Select the LCD */ @@ -536,7 +617,7 @@ static int ssd1289_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buf ssd1289_gramselect(lcd); ssd1289_gramwrite(lcd, *src); - /* Increment to next column */ + /* Increment to the next column */ src++; col++; @@ -581,7 +662,7 @@ static int ssd1289_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buf ssd1289_gramselect(lcd); ssd1289_gramwrite(lcd, *src); - /* Increment to next column */ + /* Increment to the next column */ src++; col--; @@ -604,7 +685,7 @@ static int ssd1289_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buf ssd1289_gramselect(lcd); ssd1289_gramwrite(lcd, *src); - /* Decrement to next column */ + /* Decrement to the next column */ src++; col++; @@ -632,7 +713,7 @@ static int ssd1289_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buf **************************************************************************************/ static int ssd1289_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, - size_t npixels) + size_t npixels) { #ifndef CONFIG_LCD_NOGETRUN FAR struct ssd1289_dev_s *priv = &g_lcddev; @@ -643,7 +724,7 @@ static int ssd1289_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, /* Buffer must be provided and aligned to a 16-bit address boundary */ - lcdvdbg("row: %d col: %d npixels: %d\n", row, col, npixels); + ssd1289_showrun(priv, row, col, npixels, false); DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0); /* Select the LCD */ @@ -666,7 +747,7 @@ static int ssd1289_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, ssd1289_readsetup(lcd, &accum); *dest++ = ssd1289_gramread(lcd, &accum); - /* Increment to next column */ + /* Increment to the next column */ col++; } @@ -715,7 +796,7 @@ static int ssd1289_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, ssd1289_readsetup(lcd, &accum); *dest++ = ssd1289_gramread(lcd, &accum); - /* Increment to next column */ + /* Increment to the next column */ col--; } @@ -738,7 +819,7 @@ static int ssd1289_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, ssd1289_readsetup(lcd, &accum); *dest++ = ssd1289_gramread(lcd, &accum); - /* Decrement to next column */ + /* Decrement to the next column */ col++; } |