The SAM4L Xplained Pro SLCD driver is code complete but untested
This commit is contained in:
Gregory Nutt
parent
d7ec0089a7
commit
7b716cf8f5
@ -679,77 +679,104 @@ Configuration sub-directories
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This configuration directory will built the NuttShell. See NOTES above
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This configuration directory will built the NuttShell. See NOTES above
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and below:
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and below:
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NOTE:
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NOTES:
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If the I/O1 module is connected to the SAM4L Xplained Pro, then support
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for the SD card slot can be enabled by making the following changes
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to the configuration:
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File Systems:
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1. If the I/O1 module is connected to the SAM4L Xplained Pro, then
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CONFIG_FS_FAT=y : Enable the FAT file system
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support for the SD card slot can be enabled by making the following
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CONFIG_FAT_LCNAMES=y : Enable upper/lower case 8.3 file names (Optional, see below)
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changes to the configuration:
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CONFIG_FAT_LFN=y : Enable long file named (Optional, see below)
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CONFIG_FAT_MAXFNAME=32 : Maximum supported file name length
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There are issues related to patents that Microsoft holds on FAT long
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File Systems:
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file name technologies. See the top level COPYING file for further
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CONFIG_FS_FAT=y : Enable the FAT file system
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details.
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CONFIG_FAT_LCNAMES=y : Enable upper/lower case 8.3 file names (Optional, see below)
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CONFIG_FAT_LFN=y : Enable long file named (Optional, see below)
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CONFIG_FAT_MAXFNAME=32 : Maximum supported file name length
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System Type -> Peripherals:
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There are issues related to patents that Microsoft holds on FAT long
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CONFIG_SAM34_SPI=y : Enable the SAM4L SPI peripheral
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file name technologies. See the top level COPYING file for further
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details.
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Device Drivers
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System Type -> Peripherals:
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CONFIG_SPI=y : Enable SPI support
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CONFIG_SAM34_SPI=y : Enable the SAM4L SPI peripheral
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CONFIG_SPI_EXCHANGE=y : The exchange() method is supported
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CONFIG_SPI_OWNBUS=y : Smaller code if this is the only SPI device
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CONFIG_MMCSD=y : Enable MMC/SD support
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Device Drivers
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CONFIG_MMCSD_NSLOTS=1 : Only one MMC/SD card slot
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CONFIG_SPI=y : Enable SPI support
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CONFIG_MMCSD_MULTIBLOCK_DISABLE=n : Should not need to disable multi-block transfers
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CONFIG_SPI_EXCHANGE=y : The exchange() method is supported
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CONFIG_MMCSD_HAVECARDDETECT=y : I/O1 module as a card detect GPIO
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CONFIG_SPI_OWNBUS=y : Smaller code if this is the only SPI device
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CONFIG_MMCSD_SPI=y : Use the SPI interface to the MMC/SD card
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CONFIG_MMCSD_SPICLOCK=20000000 : This is a guess for the optimal MMC/SD frequency
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CONFIG_MMCSD_SPIMODE=0 : Mode 0 is required
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Board Selection -> Common Board Options
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CONFIG_MMCSD=y : Enable MMC/SD support
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CONFIG_NSH_MMCSDSLOTNO=0 : Only one MMC/SD slot, slot 0
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CONFIG_MMCSD_NSLOTS=1 : Only one MMC/SD card slot
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CONFIG_NSH_MMCSDSPIPORTNO=0 : Use CS=0 if the I/O1 is in EXT1, OR
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CONFIG_MMCSD_MULTIBLOCK_DISABLE=n : Should not need to disable multi-block transfers
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CONFIG_NSH_MMCSDSPIPORTNO=2 : Use CS=2 if the I/O1 is in EXT2
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CONFIG_MMCSD_HAVECARDDETECT=y : I/O1 module as a card detect GPIO
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CONFIG_MMCSD_SPI=y : Use the SPI interface to the MMC/SD card
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CONFIG_MMCSD_SPICLOCK=20000000 : This is a guess for the optimal MMC/SD frequency
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CONFIG_MMCSD_SPIMODE=0 : Mode 0 is required
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Board Selection -> SAM4L Xplained Pro Modules
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Board Selection -> Common Board Options
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CONFIG_SAM4L_XPLAINED_IOMODULE=y : I/O1 module is connected
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CONFIG_NSH_MMCSDSLOTNO=0 : Only one MMC/SD slot, slot 0
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CONFIG_SAM4L_XPLAINED_IOMODULE_EXT1=y : In EXT1, or EXT2
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CONFIG_NSH_MMCSDSPIPORTNO=0 : Use CS=0 if the I/O1 is in EXT1, OR
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CONFIG_SAM4L_XPLAINED_IOMODULE_EXT2=y
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CONFIG_NSH_MMCSDSPIPORTNO=2 : Use CS=2 if the I/O1 is in EXT2
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Application Configuration -> NSH Library
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Board Selection -> SAM4L Xplained Pro Modules
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CONFIG_NSH_ARCHINIT=y : Board has architecture-specific initialization
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CONFIG_SAM4L_XPLAINED_IOMODULE=y : I/O1 module is connected
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CONFIG_SAM4L_XPLAINED_IOMODULE_EXT1=y : In EXT1, or EXT2
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CONFIG_SAM4L_XPLAINED_IOMODULE_EXT2=y
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NOTE: If you enable the I/O1 this configuration with USART0 as the
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Application Configuration -> NSH Library
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console and with the I/O1 module in EXT1, you *must* remove UART
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CONFIG_NSH_ARCHINIT=y : Board has architecture-specific initialization
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jumper. Otherwise, you have lookpack on USART0 and NSH will *not*
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behave very well (since its outgoing prompts also appear as incoming
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commands).
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NOTE: If you get a compilation error like:
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NOTE: If you enable the I/O1 this configuration with USART0 as the
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console and with the I/O1 module in EXT1, you *must* remove UART
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jumper. Otherwise, you have lookpack on USART0 and NSH will *not*
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behave very well (since its outgoing prompts also appear as incoming
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commands).
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libxx_new.cxx:74:40: error: 'operator new' takes type 'size_t'
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NOTE: If you get a compilation error like:
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('unsigned int') as first parameter [-fper
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Sometimes NuttX and your toolchain will disagree on the underlying
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libxx_new.cxx:74:40: error: 'operator new' takes type 'size_t'
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type of size_t; sometimes it is an 'unsigned int' and sometimes it is
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('unsigned int') as first parameter [-fper
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an 'unsigned long int'. If this error occurs, then you may need to
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toggle the value of CONFIG_CXX_NEWLONG.
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STATUS: As of 2013-6-18, this configuration appears completely
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Sometimes NuttX and your toolchain will disagree on the underlying
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functional. Testing, however, has been very light. Example:
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type of size_t; sometimes it is an 'unsigned int' and sometimes it is
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an 'unsigned long int'. If this error occurs, then you may need to
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toggle the value of CONFIG_CXX_NEWLONG.
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NuttShell (NSH) NuttX-6.28
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STATUS: As of 2013-6-18, this configuration appears completely
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nsh> mount -t vfat /dev/mmcsd0 /mnt/stuff
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functional. Testing, however, has been very light. Example:
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nsh> ls /mnt/stuff
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/mnt/stuff:
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NuttShell (NSH) NuttX-6.28
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nsh> echo "This is a test" >/mnt/stuff/atest.txt
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nsh> mount -t vfat /dev/mmcsd0 /mnt/stuff
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nsh> ls /mnt/stuff
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nsh> ls /mnt/stuff
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/mnt/stuff:
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/mnt/stuff:
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atest.txt
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nsh> echo "This is a test" >/mnt/stuff/atest.txt
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nsh> cat /mnt/stuff/atest.txt
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nsh> ls /mnt/stuff
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This is a test
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/mnt/stuff:
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nsh>
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atest.txt
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nsh> cat /mnt/stuff/atest.txt
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This is a test
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nsh>
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1. If the LCD1 module is connected to the SAM4L Xplained Pro, then
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support for the SLCDt can be enabled by making the following
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changes to the configuration:
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System Type -> AT91SAM3/4 Peripheral Support
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CONFIG_SAM34_LCDCA=y
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System Type -> AT91SAM3/4 Clock Configuration
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CONFIG_SAM34_OSC32K=y
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Board Selection -> Board-Specific Options -> SAM4L Xplained Pro Modules
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CONFIG_SAM4L_XPLAINED_SLCD1MODULE=y
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Library Routines -> Non-standard Library Support
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CONFIG_LIB_SLCDCODEC=y
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The SLCD example can be enabled to verify the SLCD:
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Application Configuration -> Examples
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CONFIG_EXAMPLES_SLCD=y
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CONFIG_EXAMPLES_SLCD_DEVNAME="/dev/slcd"
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CONFIG_EXAMPLES_SLCD_BUFSIZE=64
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Application Configuration -> NSH Library
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CONFIG_NSH_ARCHINIT=y
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@ -65,8 +65,10 @@ CSRCS += sam_nsh.c
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endif
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endif
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ifeq ($(CONFIG_SAM34_LCDCA),y)
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ifeq ($(CONFIG_SAM34_LCDCA),y)
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ifeq ($(CONFIG_SAM4L_XPLAINED_SLCD1MODULE),y)
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CSRCS += sam_slcd.c
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CSRCS += sam_slcd.c
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endif
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endif
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endif
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ifeq ($(CONFIG_SAM4L_XPLAINED_IOMODULE),y)
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ifeq ($(CONFIG_SAM4L_XPLAINED_IOMODULE),y)
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CSRCS += sam_mmcsd.c
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CSRCS += sam_mmcsd.c
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@ -33,6 +33,10 @@
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*
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*
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****************************************************************************/
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****************************************************************************/
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/* TODO: Add support for additional pixels: B0-B2, G0-G7, and E0-E7,
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* probably via ioctl calls.
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*/
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/****************************************************************************
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/****************************************************************************
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* Included Files
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* Included Files
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****************************************************************************/
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****************************************************************************/
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@ -57,11 +61,11 @@
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#include "up_arch.h"
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#include "up_arch.h"
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#include "sam_gpio.h"
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#include "sam_gpio.h"
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#include "sam4l_periphclks.h"
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#include "sam4l_periphclks.h"
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#include "chip/sam_lcdca.h"
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#include "chip/sam4l_lcdca.h"
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#include "sam4l-xplained.h"
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#include "sam4l-xplained.h"
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#ifdef CONFIG_SAM34_LCDCA
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#if defined(CONFIG_SAM34_LCDCA) && defined(CONFIG_SAM4L_XPLAINED_SLCD1MODULE)
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/****************************************************************************
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/****************************************************************************
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* Pre-processor Definitions
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* Pre-processor Definitions
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@ -110,13 +114,19 @@
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*/
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*/
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#define SLCD_NROWS 1
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#define SLCD_NROWS 1
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#define SLCD_NCHARS 6
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#define SLCD_NCHARS 5
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#define SLCD_MAXCONTRAST 63
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#define SLCD_MAXCONTRAST 63
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#define BOARD_SLCD_NCOM 4
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#define BOARD_SLCD_NCOM 4
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#define BOARD_SLCD_NSEG 40
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#define BOARD_SLCD_NSEG 40
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#define SLCD_NPINS (BOARD_SLCD_NCOM+BOARD_SLCD_NSEG+1)
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#define SLCD_NPINS (BOARD_SLCD_NCOM+BOARD_SLCD_NSEG+1)
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/* An ASCII character may need to be decorated with a preceding decimal
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* point
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*/
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#define SLCD_DP 0x01
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/* LCD controller bias configuration. */
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/* LCD controller bias configuration. */
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#undef BOARD_XBIAS
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#undef BOARD_XBIAS
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@ -139,7 +149,7 @@
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#if BOARD_SLCD_NCOM < 2
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#if BOARD_SLCD_NCOM < 2
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# define LCD_DUTY LCDCA_CFG_DUTY_STATIC /* Static COM0 */
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# define LCD_DUTY LCDCA_CFG_DUTY_STATIC /* Static COM0 */
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#elif BOARD_SLCD_NCOM < 3
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#elif BOARD_SLCD_NCOM < 3
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# define LCD_DUTY LCDCA_CFG_DUTY_1TO2 /* 1/2 COM[0:1] */
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# define LCD_DUTY LCDCA_CFG_DUTY_1TO2 /* 1/2 COM[0:1] */
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#elif BOARD_SLCD_NCOM < 4
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#elif BOARD_SLCD_NCOM < 4
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# define LCD_DUTY LCDCA_CFG_DUTY_1TO3 /* 1/3 COM[0:2] */
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# define LCD_DUTY LCDCA_CFG_DUTY_1TO3 /* 1/3 COM[0:2] */
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#elif BOARD_SLCD_NCOM < 5
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#elif BOARD_SLCD_NCOM < 5
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@ -148,6 +158,64 @@
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# error Value of BOARD_SLCD_NCOM not supported
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# error Value of BOARD_SLCD_NCOM not supported
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#endif
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#endif
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/* LCD Mapping
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*
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* a
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* ---------
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* |\ |h /|
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* f| g | i |b
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* | \ | / |
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* --j-- --k-+
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* | /| \ |
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* e| l | n |c
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* _ | / |m \| _
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* B | | --------- | | B
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* - d -
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*
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* ----- ---- ---- ---- ----- ----------------------------------------------
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* COM0 COM1 COM2 COM3 Comments
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* ----- ---- ---- ---- ----- ----------------------------------------------
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* SEG0 G1 G2 G4 G3 Atmel logo, 4 stage battery-, Dot-point-,
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* SEG1 G0 G6 G7 G5 usband play indicator
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* SEG2 E7 E5 E3 E1 4 stage wireless-, AM-, PM- Volt- and milli
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* SEG3 E6 E4 E2 E0 voltindicator
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* SEG4 A0-h A0-i A0-k A0-n 1st 14-segment character
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* SEG5 B3 A0-f A0-e A0-d
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* SEG6 A0-a A0-b A0-c B4
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* SEG7 A0-g A0-j A0-l A0-m
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* SEG8 A1-h A1-i A1-k A1-n 2nd 14-segment character
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* SEG9 B2 A1-f A1-e A1-d
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* SEG10 A1-a A1-b A1-c B5
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* SEG11 A1-g A1-j A1-l A1-m
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* SEG12 A2-h A2-i A2-k A2-n 3rd 14-segment character
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* SEG13 B1 A2-f A2-e A2-d
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* SEG14 A2-a A2-b A2-c B6
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* SEG15 A2-g A2-j A2-l A2-m
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* SEG16 A3-h A3-i A3-k A3-n 4th 14-segment character
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* SEG17 B0 A3-f A3-e A3-d
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* SEG18 A3-a A3-b A3-c B7
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* SEG19 A3-g A3-j A3-l A3-m
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* SEG20 A4-h A4-i A4-k A4-n 5th 14-segment character. Celsius and
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* SEG21 B8 A4-f A4-e A4-d Fahrenheit indicator
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* SEG22 A4-a A4-b A4-c B9
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* SEG23 A4-g A4-j A4-l A4-m
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*/
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#define SLCD_A0_STARTSEG 4
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#define SLCD_A0_ENDSEG 7
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#define SLCD_A1_STARTSEG 8
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#define SLCD_A1_ENDSEG 11
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#define SLCD_A2_STARTSEG 12
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#define SLCD_A2_ENDSEG 15
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#define SLCD_A3_STARTSEG 16
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#define SLCD_A3_ENDSEG 19
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#define SLCD_A4_STARTSEG 20
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#define SLCD_A4_ENDSEG 23
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#define SLCD_NB 10 /* Number of 'B' segments B0-B9 */
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#define SLCD_NG 8 /* Number of 'G' segments G0-G7 */
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#define SLCD_NE 8 /* Number of 'E' segments G0-G7 */
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/* Debug ********************************************************************/
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/* Debug ********************************************************************/
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#ifdef CONFIG_DEBUG_LCD
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#ifdef CONFIG_DEBUG_LCD
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@ -178,6 +246,15 @@ struct sam_slcdstate_s
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bool initialized; /* True: Completed initialization sequence */
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bool initialized; /* True: Completed initialization sequence */
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uint8_t curpos; /* The current cursor position */
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uint8_t curpos; /* The current cursor position */
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uint8_t buffer[SLCD_NCHARS]; /* SLCD ASCII content */
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uint8_t buffer[SLCD_NCHARS]; /* SLCD ASCII content */
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uint8_t options[SLCD_NCHARS]; /* Ornamentations */
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};
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/* Describes one pixel */
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struct slcd_pixel_s
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{
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uint8_t segment;
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uint8_t com;
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};
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};
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/****************************************************************************
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/****************************************************************************
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@ -195,12 +272,21 @@ static void slcd_dumpslcd(FAR const char *msg);
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/* Internal utilities */
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/* Internal utilities */
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#if 0 /* Not used */
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static void slcd_clear(void);
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static void slcd_clear(void);
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#endif
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static void slcd_setpixel(FAR const struct slcd_pixel_s *info);
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#if 0 /* Not used */
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static void slcd_clrpixel(FAR const struct slcd_pixel_s *info);
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#endif
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static void slcd_setdp(uint8_t curpos);
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#if 0 /* Not used */
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static void slcd_clrdp(uint8_t curpos);
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#endif
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static int slcd_getstream(FAR struct lib_instream_s *instream);
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static int slcd_getstream(FAR struct lib_instream_s *instream);
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static uint8_t slcd_getcontrast(void);
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static uint8_t slcd_getcontrast(void);
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static int slcd_setcontrast(int contrast);
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static int slcd_setcontrast(unsigned int contrast);
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static void slcd_writech(uint8_t ch, uint8_t curpos);
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static void slcd_writech(uint8_t ch, uint8_t curpos);
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static void slcd_appendch(uint8_t ch);
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static void slcd_action(enum slcdcode_e code, uint8_t count);
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static void slcd_action(enum slcdcode_e code, uint8_t count);
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/* Character driver methods */
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/* Character driver methods */
|
||||||
@ -253,6 +339,38 @@ static gpio_pinset_t g_slcdgpio[SLCD_NPINS] =
|
|||||||
GPIO_LCD1_BL
|
GPIO_LCD1_BL
|
||||||
};
|
};
|
||||||
|
|
||||||
|
/* First segment of each character */
|
||||||
|
|
||||||
|
static const uint8_t g_startseg[SLCD_NCHARS] =
|
||||||
|
{
|
||||||
|
SLCD_A0_STARTSEG, SLCD_A1_STARTSEG, SLCD_A2_STARTSEG, SLCD_A3_STARTSEG,
|
||||||
|
SLCD_A4_STARTSEG
|
||||||
|
};
|
||||||
|
|
||||||
|
/* Pixel position for each 'B' segment */
|
||||||
|
|
||||||
|
static const struct slcd_pixel_s g_binfo[SLCD_NB] =
|
||||||
|
{
|
||||||
|
{17, 0}, {13, 0}, {9, 0}, {5, 0}, {6, 3},
|
||||||
|
{10, 3}, {14, 3}, {18, 3}, {21, 0}, {22, 3}
|
||||||
|
};
|
||||||
|
|
||||||
|
/* Pixel position for each 'G' segment */
|
||||||
|
|
||||||
|
static const struct slcd_pixel_s g_ginfo[SLCD_NG] =
|
||||||
|
{
|
||||||
|
{1, 0}, {0, 0}, {0, 1}, {0, 3}, {0, 2},
|
||||||
|
{1, 3}, {1, 1}, {1, 2}
|
||||||
|
};
|
||||||
|
|
||||||
|
/* Pixel position for each 'E' segment */
|
||||||
|
|
||||||
|
static const struct slcd_pixel_s g_einfo[SLCD_NE] =
|
||||||
|
{
|
||||||
|
{3, 3}, {2, 3}, {3, 2}, {2, 2}, {3, 1},
|
||||||
|
{2, 1}, {3, 0}, {2, 0}
|
||||||
|
};
|
||||||
|
|
||||||
/****************************************************************************
|
/****************************************************************************
|
||||||
* Private Functions
|
* Private Functions
|
||||||
****************************************************************************/
|
****************************************************************************/
|
||||||
@ -267,9 +385,12 @@ static void slcd_dumpstate(FAR const char *msg)
|
|||||||
lcdvdbg("%s:\n", msg);
|
lcdvdbg("%s:\n", msg);
|
||||||
lcdvdbg(" curpos: %d\n",
|
lcdvdbg(" curpos: %d\n",
|
||||||
g_slcdstate.curpos);
|
g_slcdstate.curpos);
|
||||||
lcdvdbg(" Display: [%c%c%c%c%c%c]\n",
|
lcdvdbg(" Display: [%c%c%c%c%c]\n",
|
||||||
g_slcdstate.buffer[0], g_slcdstate.buffer[1], g_slcdstate.buffer[2],
|
g_slcdstate.buffer[0], g_slcdstate.buffer[1], g_slcdstate.buffer[2],
|
||||||
g_slcdstate.buffer[3], g_slcdstate.buffer[4], g_slcdstate.buffer[5]);
|
g_slcdstate.buffer[3], g_slcdstate.buffer[4]);
|
||||||
|
lcdvdbg(" Options: [%d%d%d%d%d]\n",
|
||||||
|
g_slcdstate.options[0], g_slcdstate.options[1], g_slcdstate.options[2],
|
||||||
|
g_slcdstate.options[3], g_slcdstate.options[4]);
|
||||||
}
|
}
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
@ -303,13 +424,82 @@ static void slcd_dumpslcd(FAR const char *msg)
|
|||||||
* Name: slcd_clear
|
* Name: slcd_clear
|
||||||
****************************************************************************/
|
****************************************************************************/
|
||||||
|
|
||||||
|
#if 0 /* Not used */
|
||||||
static void slcd_clear(void)
|
static void slcd_clear(void)
|
||||||
{
|
{
|
||||||
uint32_t regaddr;
|
|
||||||
|
|
||||||
lvdbg("Clearing\n");
|
lvdbg("Clearing\n");
|
||||||
#warning Missing logic
|
|
||||||
|
/* Clear display memory */
|
||||||
|
|
||||||
|
putreg32(LCDCA_CR_CDM, SAM_LCDCA_CR);
|
||||||
}
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: slcd_setpixel
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
static void slcd_setpixel(FAR const struct slcd_pixel_s *info)
|
||||||
|
{
|
||||||
|
uintptr_t regaddr;
|
||||||
|
uint32_t regval;
|
||||||
|
|
||||||
|
regaddr = info->com ? SAM_LCDCA_DRL0 : SAM_LCDCA_DRL3;
|
||||||
|
regval = getreg32(regaddr);
|
||||||
|
regval |= (1 << info->segment);
|
||||||
|
putreg32(regval, regaddr);
|
||||||
|
}
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: slcd_clrpixel
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
#if 0 /* Not used */
|
||||||
|
static void slcd_clrpixel(FAR const struct slcd_pixel_s *info)
|
||||||
|
{
|
||||||
|
uintptr_t regaddr;
|
||||||
|
uint32_t regval;
|
||||||
|
|
||||||
|
regaddr = info->com ? SAM_LCDCA_DRL0 : SAM_LCDCA_DRL3;
|
||||||
|
regval = getreg32(regaddr);
|
||||||
|
regval &= ~(1 << info->segment);
|
||||||
|
putreg32(regval, regaddr);
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: slcd_setdp
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
static void slcd_setdp(uint8_t curpos)
|
||||||
|
{
|
||||||
|
/* Set the decimal point before the current cursor position
|
||||||
|
*
|
||||||
|
* B3 B4 B5 B6 B7
|
||||||
|
* .O .O .O .O .O
|
||||||
|
*/
|
||||||
|
|
||||||
|
slcd_setpixel(&g_binfo[curpos + 3]);
|
||||||
|
g_slcdstate.options[curpos] |= SLCD_DP;
|
||||||
|
}
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: slcd_clrdp
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
#if 0 /* Not used */
|
||||||
|
static void slcd_clrdp(uint8_t curpos)
|
||||||
|
{
|
||||||
|
/* Set the decimal point before the current cursor position
|
||||||
|
*
|
||||||
|
* B3 B4 B5 B6 B7
|
||||||
|
* .O .O .O .O .O
|
||||||
|
*/
|
||||||
|
|
||||||
|
slcd_clrpixel(&g_binfo[curpos + 3]);
|
||||||
|
g_slcdstate.options[curpos] &= ~SLCD_DP;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
/****************************************************************************
|
/****************************************************************************
|
||||||
* Name: slcd_getstream
|
* Name: slcd_getstream
|
||||||
@ -347,7 +537,7 @@ static uint8_t slcd_getcontrast(void)
|
|||||||
/* Get the current contast value */
|
/* Get the current contast value */
|
||||||
|
|
||||||
regval = getreg32(SAM_LCDCA_CFG);
|
regval = getreg32(SAM_LCDCA_CFG);
|
||||||
ucontrast = (regval & LCDCA_CFG_FCST_MASK) >> LCDCA_CFG_FCST_MASK;
|
ucontrast = (regval & LCDCA_CFG_FCST_MASK) >> LCDCA_CFG_FCST_SHIFT;
|
||||||
|
|
||||||
/* Sign extend and translate the 6 bit signed value
|
/* Sign extend and translate the 6 bit signed value
|
||||||
*
|
*
|
||||||
@ -411,13 +601,26 @@ static int slcd_setcontrast(unsigned int contrast)
|
|||||||
|
|
||||||
static void slcd_writech(uint8_t ch, uint8_t curpos)
|
static void slcd_writech(uint8_t ch, uint8_t curpos)
|
||||||
{
|
{
|
||||||
uint16_t segset;
|
uint8_t segment;
|
||||||
|
|
||||||
/* Get a set describing the segment settings */
|
/* "LCDCA handles up to four ASCII characters tables, configured in
|
||||||
|
* Character Mapping Configuration register (CMCFG). Instead of handling
|
||||||
|
* each segments in display memory for a selected digit, user writes ASCII
|
||||||
|
* code in Character Mapping Control Register (CMCR) to display the
|
||||||
|
* corresponding character.
|
||||||
|
*
|
||||||
|
* "User can then drive several digits with few operations:
|
||||||
|
*
|
||||||
|
* "1. Select the Type of Digit (CMCFG.TDG),
|
||||||
|
* "2. Write the Start Segment value (CMCFG.STSEG) of the first digit,
|
||||||
|
* "3. Select Digit Reverse Mode (CMCFG.DREV) if required. If DREV is one,
|
||||||
|
* segment index is decremented,
|
||||||
|
* "4. Then write ASCII code in CMCR register."
|
||||||
|
*/
|
||||||
|
|
||||||
#warning Missing logic
|
segment = g_startseg[curpos];
|
||||||
|
putreg32(LCDCA_CMCFG_TDG_14S4C | LCDCA_CMCFG_STSEG(segment), SAM_LCDCA_CMCFG);
|
||||||
/* Decode the value and write it to the SLCD segment memory */
|
putreg32(ch, SAM_LCDCA_CMDR);
|
||||||
|
|
||||||
/* Save these values in the state structure */
|
/* Save these values in the state structure */
|
||||||
|
|
||||||
@ -425,25 +628,6 @@ static void slcd_writech(uint8_t ch, uint8_t curpos)
|
|||||||
slcd_dumpstate("AFTER WRITE");
|
slcd_dumpstate("AFTER WRITE");
|
||||||
}
|
}
|
||||||
|
|
||||||
/****************************************************************************
|
|
||||||
* Name: slcd_appendch
|
|
||||||
****************************************************************************/
|
|
||||||
|
|
||||||
static void slcd_appendch(uint8_t ch, uint8)
|
|
||||||
{
|
|
||||||
lcdvdbg("ch: %c[%02x]\n", isprint(ch) ? ch : '.', ch);
|
|
||||||
|
|
||||||
/* Write the character at the current cursor position */
|
|
||||||
|
|
||||||
slcd_writech(ch, g_slcdstate.curpos);
|
|
||||||
if (g_slcdstate.curpos < (SLCD_NCHARS - 1))
|
|
||||||
{
|
|
||||||
g_slcdstate.curpos++;
|
|
||||||
}
|
|
||||||
|
|
||||||
slcd_dumpstate("AFTER APPEND");
|
|
||||||
}
|
|
||||||
|
|
||||||
/****************************************************************************
|
/****************************************************************************
|
||||||
* Name: slcd_action
|
* Name: slcd_action
|
||||||
****************************************************************************/
|
****************************************************************************/
|
||||||
@ -510,7 +694,7 @@ static void slcd_action(enum slcdcode_e code, uint8_t count)
|
|||||||
|
|
||||||
for (i = SLCD_NCHARS - nmove; i < SLCD_NCHARS; i++)
|
for (i = SLCD_NCHARS - nmove; i < SLCD_NCHARS; i++)
|
||||||
{
|
{
|
||||||
slcd_writech(' ', i, 0);
|
slcd_writech(' ', i);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
@ -535,7 +719,7 @@ static void slcd_action(enum slcdcode_e code, uint8_t count)
|
|||||||
|
|
||||||
for (i = g_slcdstate.curpos; i < last; i++)
|
for (i = g_slcdstate.curpos; i < last; i++)
|
||||||
{
|
{
|
||||||
slcd_writech(' ', i, 0);
|
slcd_writech(' ', i);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
@ -557,7 +741,7 @@ static void slcd_action(enum slcdcode_e code, uint8_t count)
|
|||||||
|
|
||||||
for (i = g_slcdstate.curpos; i < SLCD_NCHARS; i++)
|
for (i = g_slcdstate.curpos; i < SLCD_NCHARS; i++)
|
||||||
{
|
{
|
||||||
slcd_writech(' ', i, 0);
|
slcd_writech(' ', i);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
@ -649,26 +833,20 @@ static ssize_t slcd_read(FAR struct file *filp, FAR char *buffer, size_t len)
|
|||||||
|
|
||||||
for (i = 0; i < SLCD_NCHARS && ret < len; i++)
|
for (i = 0; i < SLCD_NCHARS && ret < len; i++)
|
||||||
{
|
{
|
||||||
/* Return the character */
|
/* Check if the character is decorated with a preceding period */
|
||||||
|
|
||||||
*buffer++ = g_slcdstate.buffer[i];
|
if (ret < len && g_slcdstate.options[i] != 0)
|
||||||
ret++;
|
|
||||||
|
|
||||||
/* Check if the character is decorated with a folling period or colon */
|
|
||||||
|
|
||||||
if (ret < len && g_slcdstate.buffer[i] != 0)
|
|
||||||
{
|
{
|
||||||
if ((g_slcdstate.buffer[i] & SLCD_DP) != 0)
|
if ((g_slcdstate.options[i] & SLCD_DP) != 0)
|
||||||
{
|
{
|
||||||
*buffer++ = '.';
|
*buffer++ = '.';
|
||||||
ret++;
|
ret++;
|
||||||
}
|
}
|
||||||
else if ((g_slcdstate.buffer[i] & SLCD_COLON) != 0)
|
|
||||||
{
|
|
||||||
*buffer++ = ':';
|
|
||||||
ret++;
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
/* Return the character */
|
||||||
|
|
||||||
|
*buffer++ = g_slcdstate.buffer[i];
|
||||||
|
ret++;
|
||||||
}
|
}
|
||||||
|
|
||||||
slcd_dumpstate("READ");
|
slcd_dumpstate("READ");
|
||||||
@ -685,10 +863,9 @@ static ssize_t slcd_write(FAR struct file *filp,
|
|||||||
struct slcd_instream_s instream;
|
struct slcd_instream_s instream;
|
||||||
struct slcdstate_s state;
|
struct slcdstate_s state;
|
||||||
enum slcdret_e result;
|
enum slcdret_e result;
|
||||||
|
bool dotneeded;
|
||||||
uint8_t ch;
|
uint8_t ch;
|
||||||
uint8_t count;
|
uint8_t count;
|
||||||
uint8_t prev = ' ';
|
|
||||||
bool valid = false;
|
|
||||||
|
|
||||||
/* Initialize the stream for use with the SLCD CODEC */
|
/* Initialize the stream for use with the SLCD CODEC */
|
||||||
|
|
||||||
@ -697,35 +874,9 @@ static ssize_t slcd_write(FAR struct file *filp,
|
|||||||
instream.buffer = buffer;
|
instream.buffer = buffer;
|
||||||
instream.nbytes = len;
|
instream.nbytes = len;
|
||||||
|
|
||||||
/* Prime the pump. This is messy, but necessary to handle decoration on a
|
/* Decode and process every byte in the input buffer */
|
||||||
* character based on any following period or colon.
|
|
||||||
*/
|
|
||||||
|
|
||||||
memset(&state, 0, sizeof(struct slcdstate_s));
|
|
||||||
result = slcd_decode(&instream.stream, &state, &prev, &count);
|
|
||||||
|
|
||||||
lcdvdbg("slcd_decode returned result=%d char=%d count=%d\n",
|
|
||||||
result, prev, count);
|
|
||||||
|
|
||||||
switch (result)
|
|
||||||
{
|
|
||||||
case SLCDRET_CHAR:
|
|
||||||
valid = true;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case SLCDRET_SPEC:
|
|
||||||
{
|
|
||||||
slcd_action((enum slcdcode_e)prev, count);
|
|
||||||
prev = ' ';
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
case SLCDRET_EOF:
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Now decode and process every byte in the input buffer */
|
|
||||||
|
|
||||||
|
dotneeded = false;
|
||||||
while ((result = slcd_decode(&instream.stream, &state, &ch, &count)) != SLCDRET_EOF)
|
while ((result = slcd_decode(&instream.stream, &state, &ch, &count)) != SLCDRET_EOF)
|
||||||
{
|
{
|
||||||
lcdvdbg("slcd_decode returned result=%d char=%d count=%d\n",
|
lcdvdbg("slcd_decode returned result=%d char=%d count=%d\n",
|
||||||
@ -741,121 +892,79 @@ static ssize_t slcd_write(FAR struct file *filp,
|
|||||||
|
|
||||||
if (ch == ASCII_BS)
|
if (ch == ASCII_BS)
|
||||||
{
|
{
|
||||||
/* If there is a pending character, then output it now before
|
/* Perform the backward deletion */
|
||||||
* performing the action.
|
|
||||||
*/
|
|
||||||
|
|
||||||
if (valid)
|
|
||||||
{
|
|
||||||
slcd_appendch(prev, 0);
|
|
||||||
prev = ' ';
|
|
||||||
valid = false;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Then perform the backward deletion */
|
|
||||||
|
|
||||||
slcd_action(SLCDCODE_BACKDEL, 1);
|
slcd_action(SLCDCODE_BACKDEL, 1);
|
||||||
}
|
}
|
||||||
else if (ch == ASCII_CR)
|
else if (ch == ASCII_CR)
|
||||||
{
|
{
|
||||||
/* If there is a pending character, then output it now before
|
/* Perform the carriage return */
|
||||||
* performing the action.
|
|
||||||
*/
|
|
||||||
|
|
||||||
if (valid)
|
|
||||||
{
|
|
||||||
slcd_appendch(prev, 0);
|
|
||||||
prev = ' ';
|
|
||||||
valid = false;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Then perform the carriage return */
|
|
||||||
|
|
||||||
slcd_action(SLCDCODE_HOME, 0);
|
slcd_action(SLCDCODE_HOME, 0);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/* Ignore dots before control characters (all of them?) */
|
||||||
|
|
||||||
|
dotneeded = false;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Handle characters decoreated with a period or a colon */
|
/* Handle characters decoreated with a preceding period */
|
||||||
|
|
||||||
else if (ch == '.')
|
else if (ch == '.')
|
||||||
{
|
{
|
||||||
/* Write the previous character with the decimal point appended */
|
/* The next character will need a dot in front of it */
|
||||||
|
|
||||||
slcd_appendch(prev, SLCD_DP);
|
dotneeded = true;
|
||||||
prev = ' ';
|
|
||||||
valid = false;
|
|
||||||
}
|
|
||||||
else if (ch == ':')
|
|
||||||
{
|
|
||||||
/* Write the previous character with the colon appended */
|
|
||||||
|
|
||||||
slcd_appendch(prev, SLCD_COLON);
|
|
||||||
prev = ' ';
|
|
||||||
valid = false;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Handle ASCII_DEL */
|
/* Handle ASCII_DEL */
|
||||||
|
|
||||||
else if (ch == ASCII_DEL)
|
else if (ch == ASCII_DEL)
|
||||||
{
|
{
|
||||||
/* If there is a pending character, then output it now before
|
/* Perform the foward deletion */
|
||||||
* performing the action.
|
|
||||||
*/
|
|
||||||
|
|
||||||
if (valid)
|
|
||||||
{
|
|
||||||
slcd_appendch(prev, 0);
|
|
||||||
prev = ' ';
|
|
||||||
valid = false;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Then perform the foward deletion */
|
|
||||||
|
|
||||||
slcd_action(SLCDCODE_FWDDEL, 1);
|
slcd_action(SLCDCODE_FWDDEL, 1);
|
||||||
|
dotneeded = false;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* The rest of the 7-bit ASCII characters are fair game */
|
/* The rest of the 7-bit ASCII characters are fair game */
|
||||||
|
|
||||||
else if (ch < 128)
|
else if (ch < 128)
|
||||||
{
|
{
|
||||||
/* Write the previous character if it valid */
|
lcdvdbg("ch: %c[%02x]\n", ch, ch);
|
||||||
|
|
||||||
if (valid)
|
/* Write the character at the current cursor position */
|
||||||
|
|
||||||
|
slcd_writech(ch, g_slcdstate.curpos);
|
||||||
|
|
||||||
|
/* Check if we need to decorate the character with a preceding
|
||||||
|
* dot.
|
||||||
|
*/
|
||||||
|
|
||||||
|
if (dotneeded)
|
||||||
{
|
{
|
||||||
slcd_appendch(prev, 0);
|
slcd_setdp(g_slcdstate.curpos);
|
||||||
}
|
}
|
||||||
|
|
||||||
/* There is now a valid output character */
|
/* And advance the cursor position */
|
||||||
|
|
||||||
prev = ch;
|
if (g_slcdstate.curpos < (SLCD_NCHARS - 1))
|
||||||
valid = true;
|
{
|
||||||
|
g_slcdstate.curpos++;
|
||||||
|
}
|
||||||
|
|
||||||
|
slcd_dumpstate("AFTER APPEND");
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
else /* (result == SLCDRET_SPEC) */ /* A special SLCD action was returned */
|
else /* (result == SLCDRET_SPEC) */ /* A special SLCD action was returned */
|
||||||
{
|
{
|
||||||
/* If there is a pending character, then output it now before
|
/* Then Perform the action */
|
||||||
* performing the action.
|
|
||||||
*/
|
|
||||||
|
|
||||||
if (valid)
|
|
||||||
{
|
|
||||||
slcd_appendch(prev, 0);
|
|
||||||
prev = ' ';
|
|
||||||
valid = false;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Then perform the action */
|
|
||||||
|
|
||||||
slcd_action((enum slcdcode_e)ch, count);
|
slcd_action((enum slcdcode_e)ch, count);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Handle any unfinished output */
|
/* Ignore any dots with no following characters */
|
||||||
|
|
||||||
if (valid)
|
|
||||||
{
|
|
||||||
slcd_appendch(prev, 0);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Assume that the entire input buffer was processed */
|
/* Assume that the entire input buffer was processed */
|
||||||
|
|
||||||
@ -952,7 +1061,7 @@ static int slcd_ioctl(FAR struct file *filp, int cmd, unsigned long arg)
|
|||||||
return -ERANGE;
|
return -ERANGE;
|
||||||
}
|
}
|
||||||
|
|
||||||
return slcd_setcontrast((int)arg);
|
return slcd_setcontrast((unsigned int)arg);
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
|
||||||
@ -1063,7 +1172,7 @@ int sam_slcd_initialize(void)
|
|||||||
#endif
|
#endif
|
||||||
LCD_DUTY |
|
LCD_DUTY |
|
||||||
LCDCA_CFG_FCST(0) |
|
LCDCA_CFG_FCST(0) |
|
||||||
LCDCA_CFG_NSU(BOARD_SLCD_NSEG));
|
LCDCA_CFG_NSU(BOARD_SLCD_NSEG);
|
||||||
|
|
||||||
putreg32(regval, SAM_LCDCA_CFG);
|
putreg32(regval, SAM_LCDCA_CFG);
|
||||||
|
|
||||||
@ -1102,8 +1211,7 @@ int sam_slcd_initialize(void)
|
|||||||
|
|
||||||
/* Make sure that blinking and circular shifting is off */
|
/* Make sure that blinking and circular shifting is off */
|
||||||
|
|
||||||
putreg32(LCDCA_CR_BSTOP | , SAM_LCDCA_CR);
|
putreg32(LCDCA_CR_BSTOP | LCDCA_CR_CSTOP, SAM_LCDCA_CR);
|
||||||
putreg32(LCDCA_CR_CSTOP, SAM_LCDCA_CR);
|
|
||||||
|
|
||||||
/* Disable any automated display */
|
/* Disable any automated display */
|
||||||
|
|
||||||
@ -1136,4 +1244,4 @@ int sam_slcd_initialize(void)
|
|||||||
return ret;
|
return ret;
|
||||||
}
|
}
|
||||||
|
|
||||||
#endif /* CONFIG_SAM34_LCDCA */
|
#endif /* CONFIG_SAM34_LCDCA && CONFIG_SAM4L_XPLAINED_SLCD1MODULE */
|
||||||
|
|||||||
@ -366,7 +366,7 @@ static struct stm32_slcdstate_s g_slcdstate;
|
|||||||
* D
|
* D
|
||||||
*
|
*
|
||||||
* LCD character 16-bit-encoding:
|
* LCD character 16-bit-encoding:
|
||||||
* { E , D , P , N, M , C , COL , DP, B , A , K , J, G , F , Q , H }
|
* { E , D , P , N, M , C , COL , DP, B , A , K , J, G , F , Q , H }
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#warning "Encodings for all punctuation are incomplete"
|
#warning "Encodings for all punctuation are incomplete"
|
||||||
@ -701,7 +701,7 @@ static inline void slcd_writemem(uint16_t segset, int curpos)
|
|||||||
/* Isolate the least significant bits
|
/* Isolate the least significant bits
|
||||||
*
|
*
|
||||||
* LCD character 16-bit-encoding:
|
* LCD character 16-bit-encoding:
|
||||||
* { E , D , P , N, M , C , COL , DP, B , A , K , J, G , F , Q , H }
|
* { E , D , P , N, M , C , COL , DP, B , A , K , J, G , F , Q , H }
|
||||||
*
|
*
|
||||||
* segments[0] = { E , D , P , N }
|
* segments[0] = { E , D , P , N }
|
||||||
* segments[1] = { M , C , COL , DP }
|
* segments[1] = { M , C , COL , DP }
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user