e9f630ecb5
Error: board/stm32_ssd1289.c:290:33: error: shifting a negative signed value is undefined [-Werror,-Wshift-negative-value]
putreg32(FSMC_BTR_ADDSET(5) | FSMC_BTR_ADDHLD(0) |
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
/github/workspace/sources/nuttx/arch/arm/src/chip/hardware/stm32_fsmc.h:164:42: note: expanded from macro 'FSMC_BTR_ADDHLD'
^
/github/workspace/sources/nuttx/arch/arm/src/common/arm_internal.h:135:54: note: expanded from macro 'putreg32'
^
Error: board/stm32_ssd1289.c:291:33: error: shifting a negative signed value is undefined [-Werror,-Wshift-negative-value]
FSMC_BTR_DATAST(9) | FSMC_BTR_BUSTURN(0) |
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
/github/workspace/sources/nuttx/arch/arm/src/chip/hardware/stm32_fsmc.h:172:42: note: expanded from macro 'FSMC_BTR_BUSTURN'
^
/github/workspace/sources/nuttx/arch/arm/src/common/arm_internal.h:135:54: note: expanded from macro 'putreg32'
^
Error: board/stm32_ssd1289.c:292:12: error: shifting a negative signed value is undefined [-Werror,-Wshift-negative-value]
FSMC_BTR_CLKDIV(0) | FSMC_BTR_DATLAT(0) |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/github/workspace/sources/nuttx/arch/arm/src/chip/hardware/stm32_fsmc.h:176:42: note: expanded from macro 'FSMC_BTR_CLKDIV'
^
/github/workspace/sources/nuttx/arch/arm/src/common/arm_internal.h:135:54: note: expanded from macro 'putreg32'
^
Error: board/stm32_ssd1289.c:292:33: error: shifting a negative signed value is undefined [-Werror,-Wshift-negative-value]
FSMC_BTR_CLKDIV(0) | FSMC_BTR_DATLAT(0) |
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
/github/workspace/sources/nuttx/arch/arm/src/chip/hardware/stm32_fsmc.h:180:42: note: expanded from macro 'FSMC_BTR_DATLAT'
^
/github/workspace/sources/nuttx/arch/arm/src/common/arm_internal.h:135:54: note: expanded from macro 'putreg32'
^
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
389 lines
12 KiB
C
389 lines
12 KiB
C
/****************************************************************************
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* boards/arm/stm32/stm32f4discovery/src/stm32_ssd1289.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <string.h>
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#include <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/board.h>
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#include <nuttx/spi/spi.h>
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#include <nuttx/lcd/lcd.h>
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#include <nuttx/lcd/ssd1289.h>
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#include <arch/board/board.h>
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#include "arm_internal.h"
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#include "stm32.h"
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#include "stm32f4discovery.h"
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#ifdef CONFIG_LCD_SSD1289
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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#ifndef CONFIG_STM32_FSMC
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# error "CONFIG_STM32_FSMC is required to use the LCD"
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#endif
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/* STM32F4Discovery LCD Hardware Definitions ********************************/
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/* LCD /CS is CE1 == NOR/SRAM Bank 1
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*
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* Bank 1 = 0x60000000 | 0x00000000
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* Bank 2 = 0x60000000 | 0x04000000
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* Bank 3 = 0x60000000 | 0x08000000
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* Bank 4 = 0x60000000 | 0x0c000000
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*
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* FSMC address bit 16 is used to distinguish command and data.
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* FSMC address bits 0-24 correspond to ARM address bits 1-25.
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*/
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#define STM32_LCDBASE ((uintptr_t)(0x60000000 | 0x00000000))
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#define LCD_INDEX (STM32_LCDBASE)
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#define LCD_DATA (STM32_LCDBASE + 0x00020000)
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/* SRAM pin definitions */
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#define LCD_NADDRLINES 1 /* A16 */
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#define LCD_NDATALINES 16 /* D0-15 */
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/****************************************************************************
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* Private Function Protototypes
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****************************************************************************/
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/* Low Level LCD access */
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static void stm32_select(struct ssd1289_lcd_s *dev);
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static void stm32_deselect(struct ssd1289_lcd_s *dev);
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static void stm32_index(struct ssd1289_lcd_s *dev, uint8_t index);
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#ifndef CONFIG_SSD1289_WRONLY
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static uint16_t stm32_read(struct ssd1289_lcd_s *dev);
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#endif
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static void stm32_write(struct ssd1289_lcd_s *dev, uint16_t data);
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static void stm32_backlight(struct ssd1289_lcd_s *dev, int power);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* LCD pin mapping (see boards/arm/stm32/stm324discovery/README.txt
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* MAPPING TO STM32 F4:
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*
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* ---------------- ------------- ----------------------------------
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* STM32 FUNCTION LCD PIN STM32F4Discovery PIN
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* ---------------- ------------- ----------------------------------
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* FSMC_D0 D0 pin 4 PD14 P1 pin 46 Conflict (Note 1)
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* FSMC_D1 D1 pin 3 PD15 P1 pin 47 Conflict (Note 2)
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* FSMC_D2 D2 pin 6 PD0 P2 pin 36 Free I/O
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* FSMC_D3 D3 pin 5 PD1 P2 pin 33 Free I/O
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* FSMC_D4 D4 pin 8 PE7 P1 pin 25 Free I/O
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* FSMC_D5 D5 pin 7 PE8 P1 pin 26 Free I/O
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* FSMC_D6 D6 pin 10 PE9 P1 pin 27 Free I/O
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* FSMC_D7 D7 pin 9 PE10 P1 pin 28 Free I/O
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* FSMC_D8 D8 pin 12 PE11 P1 pin 29 Free I/O
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* FSMC_D9 D9 pin 11 PE12 P1 pin 30 Free I/O
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* FSMC_D10 D10 pin 14 PE13 P1 pin 31 Free I/O
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* FSMC_D11 D11 pin 13 PE14 P1 pin 32 Free I/O
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* FSMC_D12 D12 pin 16 PE15 P1 pin 33 Free I/O
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* FSMC_D13 D13 pin 15 PD8 P1 pin 40 Free I/O
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* FSMC_D14 D14 pin 18 PD9 P1 pin 41 Free I/O
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* FSMC_D15 D15 pin 17 PD10 P1 pin 42 Free I/O
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* FSMC_A16 RS pin 19 PD11 P1 pin 27 Free I/O
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* FSMC_NE1 ~CS pin 10 PD7 P2 pin 27 Free I/O
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* FSMC_NWE ~WR pin 22 PD5 P2 pin 29 Conflict (Note 3)
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* FSMC_NOE ~RD pin 21 PD4 P2 pin 32 Conflict (Note 4)
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* PC6 RESET pin 24 PC6 P2 pin 47 Free I/O
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* ---------------- ------------- ----------------------------------
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*
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* 1 Used for the RED LED
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* 2 Used for the BLUE LED
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* 3 Used for the RED LED and for OTG FS Overcurrent. It may be okay to
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* use for the parallel interface if PC0 is held high (or floating).
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* PC0 enables the STMPS2141STR IC power switch that drives the OTG FS
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* host VBUS.
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* 4 Also the reset pin for the CS43L22 audio Codec.
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*/
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#define GPIO_LCD_RESET (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_50MHz|\
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GPIO_OUTPUT_SET|GPIO_PORTC|GPIO_PIN6)
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/* GPIO configurations unique to the LCD */
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static const uint32_t g_lcdconfig[] =
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{
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/* PC6(RESET), FSMC_A16, FSMC_NOE, FSMC_NWE, and FSMC_NE1 */
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GPIO_LCD_RESET, GPIO_FSMC_A16, GPIO_FSMC_NOE, GPIO_FSMC_NWE, GPIO_FSMC_NE1
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};
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#define NLCD_CONFIG (sizeof(g_lcdconfig)/sizeof(uint32_t))
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/* This is the driver state structure
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* (there is no retained state information)
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*/
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static struct ssd1289_lcd_s g_ssd1289 =
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{
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.select = stm32_select,
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.deselect = stm32_deselect,
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.index = stm32_index,
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#ifndef CONFIG_SSD1289_WRONLY
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.read = stm32_read,
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#endif
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.write = stm32_write,
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.backlight = stm32_backlight
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};
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/* The saved instance of the LCD driver */
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static struct lcd_dev_s *g_ssd1289drvr;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_select
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*
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* Description:
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* Select the LCD device
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*
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****************************************************************************/
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static void stm32_select(struct ssd1289_lcd_s *dev)
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{
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/* Does not apply to this hardware */
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}
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/****************************************************************************
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* Name: stm32_deselect
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*
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* Description:
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* De-select the LCD device
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*
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****************************************************************************/
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static void stm32_deselect(struct ssd1289_lcd_s *dev)
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{
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/* Does not apply to this hardware */
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}
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/****************************************************************************
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* Name: stm32_deselect
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*
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* Description:
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* Set the index register
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*
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****************************************************************************/
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static void stm32_index(struct ssd1289_lcd_s *dev, uint8_t index)
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{
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putreg16((uint16_t)index, LCD_INDEX);
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}
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/****************************************************************************
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* Name: stm32_read
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*
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* Description:
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* Read LCD data (GRAM data or register contents)
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*
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****************************************************************************/
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#ifndef CONFIG_SSD1289_WRONLY
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static uint16_t stm32_read(struct ssd1289_lcd_s *dev)
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{
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return getreg16(LCD_DATA);
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}
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#endif
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/****************************************************************************
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* Name: stm32_write
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*
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* Description:
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* Write LCD data (GRAM data or register contents)
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*
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****************************************************************************/
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static void stm32_write(struct ssd1289_lcd_s *dev, uint16_t data)
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{
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putreg16((uint16_t)data, LCD_DATA);
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}
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/****************************************************************************
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* Name: stm32_write
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*
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* Description:
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* Write LCD data (GRAM data or register contents)
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*
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****************************************************************************/
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static void stm32_backlight(struct ssd1289_lcd_s *dev, int power)
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{
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#warning "Missing logic"
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}
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/****************************************************************************
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* Name: stm32_selectlcd
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*
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* Description:
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* Initialize to the LCD
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*
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****************************************************************************/
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void stm32_selectlcd(void)
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{
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/* Configure GPIO pins */
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stm32_extmemdata(LCD_NDATALINES); /* Common data lines: D0-D15 */
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stm32_extmemgpios(g_lcdconfig, NLCD_CONFIG); /* LCD-specific control lines */
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/* Enable AHB clocking to the FSMC */
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stm32_fsmc_enable();
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/* Color LCD configuration (LCD configured as follow):
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*
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* - Data/Address MUX = Disable "FSMC_BCR_MUXEN" just not enable it.
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* - Extended Mode = Disable "FSMC_BCR_EXTMOD"
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* - Memory Type = SRAM "FSMC_BCR_SRAM"
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* - Data Width = 16bit "FSMC_BCR_MWID16"
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* - Write Operation = Enable "FSMC_BCR_WREN"
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* - Asynchronous Wait = Disable
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*/
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/* Bank1 NOR/SRAM control register configuration */
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putreg32(FSMC_BCR_SRAM | FSMC_BCR_MWID16 | FSMC_BCR_WREN, STM32_FSMC_BCR1);
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/* Bank1 NOR/SRAM timing register configuration */
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putreg32(FSMC_BTR_ADDSET(5) | FSMC_BTR_ADDHLD(1) |
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FSMC_BTR_DATAST(9) | FSMC_BTR_BUSTURN(1) |
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FSMC_BTR_CLKDIV(1) | FSMC_BTR_DATLAT(2) |
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FSMC_BTR_ACCMODA, STM32_FSMC_BTR1);
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putreg32(0xffffffff, STM32_FSMC_BWTR1);
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/* Enable the bank by setting the MBKEN bit */
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putreg32(FSMC_BCR_MBKEN | FSMC_BCR_SRAM |
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FSMC_BCR_MWID16 | FSMC_BCR_WREN, STM32_FSMC_BCR1);
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: board_lcd_initialize
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*
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* Description:
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* Initialize the LCD video hardware. The initial state of the LCD is fully
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* initialized, display memory cleared, and the LCD ready to use, but with
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* the power setting at 0 (full off).
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*
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****************************************************************************/
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int board_lcd_initialize(void)
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{
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/* Only initialize the driver once */
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if (!g_ssd1289drvr)
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{
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lcdinfo("Initializing\n");
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/* Configure GPIO pins and configure the FSMC to support the LCD */
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stm32_selectlcd();
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/* Reset the LCD (active low) */
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stm32_gpiowrite(GPIO_LCD_RESET, false);
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up_mdelay(5);
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stm32_gpiowrite(GPIO_LCD_RESET, true);
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/* Configure and enable the LCD */
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up_mdelay(50);
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g_ssd1289drvr = ssd1289_lcdinitialize(&g_ssd1289);
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if (!g_ssd1289drvr)
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{
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lcderr("ERROR: ssd1289_lcdinitialize failed\n");
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return -ENODEV;
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}
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}
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/* Clear the display (setting it to the color 0=black) */
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#if 0 /* Already done in the driver */
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ssd1289_clear(g_ssd1289drvr, 0);
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#endif
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/* Turn the display off */
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g_ssd1289drvr->setpower(g_ssd1289drvr, 0);
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return OK;
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}
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/****************************************************************************
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* Name: board_lcd_getdev
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*
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* Description:
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* Return a a reference to the LCD object for the specified LCD.
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* This allows support for multiple LCD devices.
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*
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****************************************************************************/
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struct lcd_dev_s *board_lcd_getdev(int lcddev)
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{
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DEBUGASSERT(lcddev == 0);
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return g_ssd1289drvr;
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}
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/****************************************************************************
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* Name: board_lcd_uninitialize
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*
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* Description:
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* Uninitialize the LCD support
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*
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****************************************************************************/
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void board_lcd_uninitialize(void)
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{
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/* Turn the display off */
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g_ssd1289drvr->setpower(g_ssd1289drvr, 0);
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}
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#endif /* CONFIG_LCD_SSD1289 */
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