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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2010-05-12 13:00:19 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2010-05-12 13:00:19 +0000 |
commit | 4573308f42bec2514e2edfae7d9a39b05d5f8a23 (patch) | |
tree | 5343e9e7ff039b8b0162142e590a45224edb0c78 /nuttx | |
parent | 8df9f66e89d5dd5dcbe6d669d3655f4db3c4405e (diff) | |
download | px4-nuttx-4573308f42bec2514e2edfae7d9a39b05d5f8a23.tar.gz px4-nuttx-4573308f42bec2514e2edfae7d9a39b05d5f8a23.tar.bz2 px4-nuttx-4573308f42bec2514e2edfae7d9a39b05d5f8a23.zip |
Add power methods
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2666 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx')
-rwxr-xr-x | nuttx/drivers/lcd/p14201.c | 62 |
1 files changed, 56 insertions, 6 deletions
diff --git a/nuttx/drivers/lcd/p14201.c b/nuttx/drivers/lcd/p14201.c index 0ab7a8dbf..e23326820 100755 --- a/nuttx/drivers/lcd/p14201.c +++ b/nuttx/drivers/lcd/p14201.c @@ -96,7 +96,19 @@ #endif #if CONFIG_LCD_MAXCONTRAST > 255 -# error "CONFIG_LCD_MAXCONTRAST exceed supported maximum" +# error "CONFIG_LCD_MAXCONTRAST exceeds supported maximum" +#endif + +/* Check power setting */ + +#if !defined(CONFIG_LCD_MAXPOWER) +# define CONFIG_LCD_MAXPOWER 1 +#endif + +#if CONFIG_LCD_MAXCONTRAST > 1 +# warning "CONFIG_LCD_MAXPOWER exceeds supported maximum" +# undef CONFIG_LCD_MAXPOWER +# define CONFIG_LCD_MAXPOWER 1 #endif /* Define the following to enable register-level debug output */ @@ -155,6 +167,7 @@ struct rit_dev_s struct lcd_dev_s dev; /* Publically visible device structure */ FAR struct spi_dev_s *spi; /* Cached SPI device reference */ uint8_t contrast; /* Current contrast setting */ + bool on; /* true: display is on */ }; /************************************************************************************** @@ -309,11 +322,25 @@ static const uint8_t g_initcmds[] = 3, SSD1329_PRECHRG1_VOLT, /* Set First Precharge voltage, VP */ 0x3f, /* 1.00 x Vcc */ SSD1329_NOOP, - 2, SSD1329_SLEEP_OFF, /* Matrix display ON */ - SSD1329_NOOP, 0 /* Zero length command terminates table */ }; +/* Turn the maxtrix display on (sleep mode off) */ + +static const uint8_t g_sleepoff[] = +{ + SSD1329_SLEEP_OFF, /* Matrix display ON */ + SSD1329_NOOP, +}; + +/* Turn the maxtrix display off (sleep mode on) */ + +static const uint8_t g_sleepon[] = +{ + SSD1329_SLEEP_ON, /* Matrix display OFF */ + SSD1329_NOOP, +}; + /************************************************************************************** * Private Functions **************************************************************************************/ @@ -458,7 +485,7 @@ static void rit_sndbytes(FAR struct spi_dev_s *spi, FAR const uint8_t *buffer, /* Clear the D/Cn bit to enable command mode */ - oled_data(spi, data); + rit_seldata(spi, data); /* Loop until the entire command is transferred */ @@ -472,7 +499,6 @@ static void rit_sndbytes(FAR struct spi_dev_s *spi, FAR const uint8_t *buffer, /* Send a dummy byte */ (void)SPI_SEND(spi, 0xff); - } /* De-select the SD1329 controller */ @@ -614,7 +640,11 @@ static int rit_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno, static int rit_getpower(struct lcd_dev_s *dev) { - return -ENOSYS; /* Not implemented */ + struct rit_dev_s *priv = (struct rit_dev_s *)dev; + DEBUGASSERT(priv); + + gvdbg("power: %s\n", priv->on ? "ON" : "OFF"); + return (int)priv->on; } /************************************************************************************** @@ -628,7 +658,26 @@ static int rit_getpower(struct lcd_dev_s *dev) static int rit_setpower(struct lcd_dev_s *dev, int power) { + struct rit_dev_s *priv = (struct rit_dev_s *)dev; + DEBUGASSERT(priv && (unsigned)power <= CONFIG_LCD_MAXPOWER && priv->spi); + gvdbg("power: %d\n", power); + if (power > 0) + { + /* Re-initialize the SSD1329 controller */ + + rit_sndcmds(priv->spi, g_initcmds); + + /* Take the display out of sleep mode */ + + rit_sndcmd(priv->spi, g_sleepoff, sizeof(g_sleepon)); + } + else + { + /* Put the display into sleep mode */ + + rit_sndcmd(priv->spi, g_sleepon, sizeof(g_sleepon)); + } return -ENOSYS; /* Not implemented */ } @@ -716,6 +765,7 @@ FAR struct lcd_dev_s *rit_initialize(FAR struct spi_dev_s *spi, int devno) priv->dev.setcontrast = rit_setcontrast; priv->spi = spi; priv->contrast = RIT_CONTRAST; + priv->on = false; return &priv->dev; } return NULL; |