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SAM4E-EK: Add a driver for the on-board LCD (not tested on initial check-ing)

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This commit is contained in:
Gregory Nutt 2014-05-13 10:38:46 -06:00
parent c1d98aeb35
commit 6a943baa91
5 changed files with 1463 additions and 234 deletions
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36
configs/sam4e-ek/Kconfig
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@ -62,17 +62,29 @@ config SAM4EEK_HSMCI_BLOCKDEVICE
endchoice # AT25 serial FLASH configuration
config SAM4EEK_ILI9325
bool "ILI9325-based LCD"
default n
depends on EXPERIMENTAL
select NX
select NX_LCDDRIVER
---help---
This option enables support for the SAM4E-EK on-board LCD. The
SAM4E-EK carries a TFT transmissive LCD module with touch panel,
FTM280C34D. Its integrated driver IC is ILI9325. The LCD display
area is 2.8 inches diagonally measured, with a native resolution
of 240 x 320 dots.
if LCD
choice
prompt "ILI9325-based LCD Color Configuration"
default SAM4EEK_LCD_RGB565
config SAM4EEK_LCD_RGB565
bool "RGB565"
default n
config SAM4EEK_LCD_RGB24
bool "RGB24 / RGB888"
default n
config SAM4EEK_LCD_RGB32
bool "RGB32"
default n
endchoice # ILI9325-based LCD Color Configuration
config SAM4EEK_LCD_BGCOLOR
hex "Initial background color"
default 0x00
endif # LCD
endif # ARCH_BOARD_SAM4EEK

17
configs/sam4e-ek/include/board.h
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@ -314,5 +314,22 @@ void sam_setled(int led, bool ledon);
void sam_setleds(uint8_t ledset);
#endif
/************************************************************************************
* Name: stm32_lcdclear
*
* Description:
* This is a non-standard LCD interface just for the Shenzhou board. Because
* of the various rotations, clearing the display in the normal way by writing a
* sequences of runs that covers the entire display can be very slow. Here the
* display is cleared by simply setting all GRAM memory to the specified color.
*
************************************************************************************/
#if defined(CONFIG_SAM4EEK_LCD_RGB565)
void sam_lcdclear(uint16_t color);
#else /* if defined(CONFIG_SAM4EEK_LCD_RGB24) defined(CONFIG_SAM4EEK_LCD_RGB32) */
void sam_lcdclear(uint32_t color);
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_SAM4E_EK_INCLUDE_BOARD_H */

4
configs/sam4e-ek/src/Makefile
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@ -58,6 +58,10 @@ ifeq ($(CONFIG_SAM34_HSMCI),y)
CSRCS += sam_hsmci.c
endif
ifeq ($(CONFIG_LCD),y)
CSRCS += sam_ili9325.c
endif
ifeq ($(CONFIG_SAM34_SPI0),y)
CSRCS += sam_spi.c
ifeq ($(CONFIG_MTD_AT25),y)

1418
configs/sam4e-ek/src/sam_ili9325.c Normal file
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File diff suppressed because it is too large Load Diff

222
configs/sam4e-ek/src/sam_ili9523.c
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@ -1,222 +0,0 @@
/**************************************************************************************
* configs/sam4e-ek/src/sam_ili9325.c
*
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
**************************************************************************************/
/**************************************************************************************
*
* The SAM4E-EK carries a TFT transmissive LCD module with touch panel, FTM280C34D.
* Its integrated driver IC is ILI9325. The LCD display area is 2.8 inches diagonally
* measured, with a native resolution of 240 x 320 dots.
*
* The SAM4E16 communicates with the LCD through PIOC where an 8-bit parallel "8080-
* like" protocol data bus has to be implemented in software.
*
* ---- ----- --------- --------------------------------
* PIN PIO SIGNAL NOTES
* ---- ----- --------- --------------------------------
* 1 VDD
* 2 PC7 DB17
* 3 PC6 DB16
* 4 PC5 DB15
* 5 PC4 DB14
* 6 PC3 DB13
* 7 PC2 DB12
* 8 PC1 DB11
* 9 PC0 DB10
* 10 DB9 Pulled low
* 11 DB8 Pulled low
* 12 DB7 Pulled low
* 13 DB6 Pulled low
* 14 DB5 Pulled low
* 15 DB4 Pulled low
* 16 DB3 Pulled low
* 17 DB2 Pulled low
* 18 DB1 Pulled low
* 19 DB0 Pulled low
* ---- ----- --------- --------------------------------
* 20 VDD
* 21 PC11 RD
* 22 PC8 WR
* 23 PC19 RS
* 24 PD18 CS Via J8, pulled high. Connects to NRST.
* 25 RESET Connects to NSRST
* 26 IM0 Pulled high
* 27 IM1 Grounded
* 28 GND
* ---- ----- --------- --------------------------------
* 29 [PC13] LED-A Backlight controls: PC13 enables
* 30 [PC13] LEDK1 AAT3155 charge pump that drives
* 31 [PC13] LEDK2 the backlight LEDs
* 32 [PC13] LEDK3
* 33 [PC13] LEDK4
* 34 [PC13] LEDK1
* ---- ----- --------- --------------------------------
* 35 Y+ These go to the ADS7843
* 36 Y- touchscreen controller.
* 37 X+
* 38 X-
* 39 NC
* ---- ----- --------- --------------------------------
*
* LCD backlight is made of 4 white chip LEDs in parallel, driven by an AAT3155
* charge pump, MN4. The AAT3155 is controlled by the SAM3U4E through a single line
* Simple Serial Control (S2Cwire) interface, which permits to enable, disable, and
* set the LED drive current (LED brightness control) from a 32-level logarithmic
* scale. Four resistors R93/R94/R95/R96 are implemented for optional current
* limitation.
*
**************************************************************************************/
/**************************************************************************************
* Included Files
**************************************************************************************/
/**************************************************************************************
* Pre-processor Definitions
**************************************************************************************/
/* Configuration **********************************************************************/
/* Define the following to enable register-level debug output */
#undef CONFIG_LCD_REGDEBUG
/* Verbose debug must also be enabled */
#ifndef CONFIG_DEBUG
# undef CONFIG_DEBUG_VERBOSE
# undef CONFIG_DEBUG_LED
#endif
#ifndef CONFIG_DEBUG_VERBOSE
# undef CONFIG_LCD_REGDEBUG
#endif
/* Debug ******************************************************************************/
#ifdef CONFIG_LCD_REGDEBUG
# define regdbg(format, arg...) vdbg(format, ##arg)
#else
# define regdbg(x...)
#endif
#ifdef CONFIG_DEBUG_LCD
# define lcddbg(format, arg...) dbg(format, ##arg)
# define lcdvdbg(format, arg...) vdbg(format, ##arg)
#else
# define lcddbg(x...)
# define lcdvdbg(x...)
#endif
/**************************************************************************************
* Private Type Definition
**************************************************************************************/
/**************************************************************************************
* Private Function Prototypes
**************************************************************************************/
/**************************************************************************************
* Private Data
**************************************************************************************/
/**************************************************************************************
* Private Functions
**************************************************************************************/
/**************************************************************************************
* Public Functions
**************************************************************************************/
/**************************************************************************************
* Name: up_lcdinitialize
*
* Description:
* Initialize the LCD video hardware. The initial state of the LCD is fully
* initialized, display memory cleared, and the LCD ready to use, but with the power
* setting at 0 (full off).
*
**************************************************************************************/
int up_lcdinitialize(void)
{
/* Not implemented
*
* If you want to implement LCD support, here are some references:
*
* 1. Atmel Sample Code (ASF). There is no example for the SAM4E-EK, but there is for
* the SAM4S-EK. The LCD and its processor connectivity appear to be equivalent
* to the SAM4E-EK so this sample code should be a good place to begin. NOTE that
* the clock frequencies may be different and pin usage may be different. So it
* may be necessary to adjust the SAM configuration to use this example.
* 2. There is an example of an LCD driver for the SAM3U at configs/sam4u-ek/src/up_lcd.c.
* That LCD driver is for an LCD with a different LCD controller but should provide
* the NuttX SAM framework for an LCD driver.
* 3. There are other LCD drivers for different MCUs that do support the ILI9325
* LCD. Look at configs/shenzhou/src/up_ili93xx.c, configs/stm3220g-eval/src/up_lcd.c,
* and configs/stm3240g-eval/src/up_lcd.c. I believe that the Shenzhou driver is
* the most recent.
*/
return -ENOSYS;
}
/**************************************************************************************
* Name: up_lcdgetdev
*
* Description:
* Return a a reference to the LCD object for the specified LCD. This allows
* support for multiple LCD devices.
*
**************************************************************************************/
FAR struct lcd_dev_s *up_lcdgetdev(int lcddev)
{
/* Not implemented */
return NULL;
}
/**************************************************************************************
* Name: up_lcduninitialize
*
* Description:
* Unitialize the framebuffer support.
*
**************************************************************************************/
void up_lcduninitialize(void)
{
/* Not implemented */
}