In progress changes for OLED display work
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2669 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
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@ -327,6 +327,13 @@ defconfig -- This is a configuration file similar to the Linux
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CONFIG_FAT_SECTORSIZE - Max supported sector size
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CONFIG_FS_ROMFS - Enable ROMFS filesystem support
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SPI driver
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CONFIG_SPI_OWNBUS - Set if there is only one active device
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on the SPI bus. No locking or SPI configuration will be performed.
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It is not necessary for clients to lock, re-configure, etc..
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CONFIG_SPI_EXCHANGE - Driver supports a single exchange method
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(vs a recvblock() and sndblock ()methods)
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SPI-based MMC/SD driver
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CONFIG_MMCSD_NSLOTS - Number of MMC/SD slots supported by the
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driver. Default is one.
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@ -343,6 +350,29 @@ defconfig -- This is a configuration file similar to the Linux
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CONFIG_MMCSD_HAVECARDDETECT - SDIO driver card detection is
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100% accurate
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RiT P14201 OLED driver
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CONFIG_LCD_P14201 - Enable P14201 support
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CONFIG_P14201_SPIMODE - Controls the SPI mode
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CONFIG_P14201_FREQUENCY - Define to use a different bus frequency
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CONFIG_P14201_NINTERFACES - Specifies the number of physical P14201
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devices that will be supported.
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CONFIG_P14201_FRAMEBUFFER - If defined, accesses will be performed
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using an in-memory copy of the OLEDs GDDRAM. This cost of this
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buffer is 128 * 96 / 2 = 6Kb. If this is defined, then the driver
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will be fully functioned. If not, then it will have the following
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limitations:
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- Reading graphics memory cannot be supported, and
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- All pixel writes must be aligned to byte boundaries.
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ENC28J60 Ethernet Driver Configuration Settings:
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CONFIG_NET_ENC28J60 - Enabled ENC28J60 support
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CONFIG_ENC28J60_SPIMODE - Controls the SPI mode
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CONFIG_ENC28J60_FREQUENCY - Define to use a different bus frequency
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CONFIG_ENC28J60_NINTERFACES - Specifies the number of physical ENC28J60
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devices that will be supported.
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CONFIG_ENC28J60_STATS - Collect network statistics
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CONFIG_ENC28J60_HALFDUPPLEX - Default is full duplex
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TCP/IP and UDP support via uIP
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CONFIG_NET - Enable or disable all network features
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CONFIG_NET_IPv6 - Build in support for IPv6
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@ -2,7 +2,7 @@
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* config/mcu123-lpc214x/src/up_spi.c
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* arch/arm/src/board/up_spi.c
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*
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* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
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* Copyright (C) 2008-2010 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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@ -123,6 +123,9 @@
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* Private Function Prototypes
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****************************************************************************/
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#ifndef CONFIG_SPI_OWNBUS
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static int spi_lock(FAR struct spi_dev_s *dev, bool lock);
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#endif
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static void spi_select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected);
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static uint32_t spi_setfrequency(FAR struct spi_dev_s *dev, uint32_t frequency);
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static uint8_t spi_status(FAR struct spi_dev_s *dev, enum spi_dev_e devid);
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@ -136,7 +139,9 @@ static void spi_recvblock(FAR struct spi_dev_s *dev, FAR void *buffer, size_t
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static const struct spi_ops_s g_spiops =
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{
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.lock = 0, /* Not yet implemented */
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#ifndef CONFIG_SPI_OWNBUS
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.lock = spi_lock,
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#endif
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.select = spi_select,
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.setfrequency = spi_setfrequency,
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.status = spi_status,
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@ -156,6 +161,36 @@ static struct spi_dev_s g_spidev = { &g_spiops };
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: spi_lock
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*
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* Description:
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* On SPI busses where there are multiple devices, it will be necessary to
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* lock SPI to have exclusive access to the busses for a sequence of
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* transfers. The bus should be locked before the chip is selected. After
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* locking the SPI bus, the caller should then also call the setfrequency,
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* setbits, and setmode methods to make sure that the SPI is properly
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* configured for the device. If the SPI buss is being shared, then it
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* may have been left in an incompatible state.
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*
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* Input Parameters:
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* dev - Device-specific state data
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* lock - true: Lock spi bus, false: unlock SPI bus
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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#ifndef CONFIG_SPI_OWNBUS
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static int spi_lock(FAR struct spi_dev_s *dev, bool lock)
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{
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/* Not implemented */
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return -ENOSYS;
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}
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#endif
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/****************************************************************************
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* Name: spi_select
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*
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@ -432,9 +432,6 @@ CONFIG_FS_ROMFS=n
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# ENC28J60 configuration
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#
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# CONFIG_NET_ENC28J60 - Enabled ENC28J60 support
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# CONFIG_ENC28J60_OWNBUS - Set if the ENC28J60 is the only active device on
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# the SPI bus. No locking or SPI configuration will be performed. All
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# transfers will be performed from the ENC2J60 interrupt handler.
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# CONFIG_ENC28J60_SPIMODE - Controls the SPI mode
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# CONFIG_ENC28J60_FREQUENCY - Define to use a different bus frequency
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# CONFIG_ENC28J60_NINTERFACES - Specifies the number of physical ENC28J60
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@ -442,7 +439,6 @@ CONFIG_FS_ROMFS=n
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# CONFIG_ENC28J60_STATS - Collect network statistics
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# CONFOG_ENC28J60_HALFDUPPLEX - Default is full duplex
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CONFIG_NET_ENC28J60=y
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CONFIG_ENC28J60_OWNBUS=n
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#CONFIG_ENC28J60_SPIMODE
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CONFIG_ENC28J60_FREQUENCY=20000000
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CONFIG_ENC28J60_NINTERFACES=1
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@ -390,6 +390,9 @@ static inline void spi_drain(FAR struct str71x_spidev_s *priv);
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/* SPI methods */
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#ifndef CONFIG_SPI_OWNBUS
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static int spi_lock(FAR struct spi_dev_s *dev, bool lock);
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#endif
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static void spi_select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected);
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static uint32_t spi_setfrequency(FAR struct spi_dev_s *dev, uint32_t frequency);
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static uint8_t spi_status(FAR struct spi_dev_s *dev, enum spi_dev_e devid);
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@ -403,7 +406,9 @@ static void spi_recvblock(FAR struct spi_dev_s *dev, FAR void *buffer, size_t
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static const struct spi_ops_s g_spiops =
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{
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.lock = 0, /* Not yet implemented */
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#ifndef CONFIG_SPI_OWNBUS
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.lock = spi_lock,
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#endif
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.select = spi_select,
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.setfrequency = spi_setfrequency,
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.status = spi_status,
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@ -526,6 +531,36 @@ static inline void spi_drain(FAR struct str71x_spidev_s *priv)
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while ((spi_getreg(priv, STR71X_BSPI_CSR2_OFFSET) & STR71X_BSPICSR2_RFNE) != 0);
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}
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/****************************************************************************
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* Name: spi_lock
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*
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* Description:
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* On SPI busses where there are multiple devices, it will be necessary to
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* lock SPI to have exclusive access to the busses for a sequence of
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* transfers. The bus should be locked before the chip is selected. After
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* locking the SPI bus, the caller should then also call the setfrequency,
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* setbits, and setmode methods to make sure that the SPI is properly
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* configured for the device. If the SPI buss is being shared, then it
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* may have been left in an incompatible state.
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*
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* Input Parameters:
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* dev - Device-specific state data
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* lock - true: Lock spi bus, false: unlock SPI bus
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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#ifndef CONFIG_SPI_OWNBUS
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static int spi_lock(FAR struct spi_dev_s *dev, bool lock)
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{
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/* Not implemented */
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return -ENOSYS;
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}
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#endif
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/****************************************************************************
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* Name: spi_select
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*
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