Sansa c200v2 : lcd & backlight support, using the c200v1 lcd driver
The LCD driver is unified and lcd_send_command now takes 2 arguments : the command and its argument.
If there is no argument, it's set to 0 and a NOP command is issued
If there is more than one argument (set X/Y address), the 2nd argument is sent as a 2nd command, and a NOP command is issued after it.
Benefit : c200v2 transfers the command and the argument in one 16 bits transfer
Performance should not be affected since commands without argument are only used in lcd_init() and lcd_enable()
lcd_send_data() now transfers whole lines (or columns) instead of single pixels
yuv is disabled for c200v2 for now
Some buttons can be read, including left button (bit 6 of DBOP_DIN), but for some reason they have no effect in rockbox: to be investigated
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21321 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré
parent
bc1fd05dc1
commit
3520d8e90e
8 changed files with 286 additions and 602 deletions
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@ -27,7 +27,7 @@
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#include <inttypes.h>
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#include "config.h"
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#include "lcd.h"
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#include "backlight-target.h"
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#include "backlight.h"
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#include "button-target.h"
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#include "common.h"
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#include "storage.h"
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@ -48,14 +48,12 @@ void main(void)
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system_init();
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kernel_init();
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#ifdef SANSA_C200V2
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/* stop here */
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while(1);
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#endif
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enable_irq();
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lcd_init();
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show_logo();
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_backlight_on();
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backlight_init();
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button_init_device();
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int btn = button_read_device();
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@ -79,8 +77,6 @@ void main(void)
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verbose = true;
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}
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enable_irq();
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ret = storage_init();
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if(ret < 0)
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error(EATA,ret);
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@ -535,7 +535,7 @@ target/arm/powermgmt-ascodec.c
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target/arm/usb-fw-pp502x.c
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target/arm/sandisk/backlight-c200_e200.c
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target/arm/sandisk/power-c200_e200.c
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target/arm/sandisk/sansa-c200/lcd-c200.c
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target/arm/lcd-c200_c200v2.c
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target/arm/sandisk/sansa-c200/lcd-as-c200.S
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target/arm/sandisk/sansa-c200/button-c200.c
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target/arm/sandisk/sansa-c200/powermgmt-c200.c
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@ -1137,7 +1137,7 @@ target/arm/as3525/sansa-e200v2/powermgmt-e200v2.c
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#ifdef SANSA_C200V2
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#ifndef SIMULATOR
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target/arm/as3525/sansa-c200v2/lcd-c200v2.c
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target/arm/lcd-c200_c200v2.c
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target/arm/as3525/sansa-c200v2/button-c200v2.c
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target/arm/as3525/sansa-c200v2/backlight-c200v2.c
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#ifndef BOOTLOADER
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@ -1,21 +1,25 @@
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/*
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* This config file is for the Sandisk Sansa e200
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* This config file is for the Sandisk Sansa c200v2
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*/
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#define TARGET_TREE /* this target is using the target tree system */
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/* For Rolo and boot loader */
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#define MODEL_NUMBER 44
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#define MODEL_NAME "Sandisk Sansa c200v2 series"
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#define FIRMWARE_OFFSET_FILE_DATA 8
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#define FIRMWARE_OFFSET_FILE_CRC 0
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#if 0
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#define HW_SAMPR_CAPS (SAMPR_CAP_44)
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#if 0
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/* define this if you have recording possibility */
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#define HAVE_RECORDING
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#define REC_SAMPR_CAPS (SAMPR_CAP_22)
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#define REC_FREQ_DEFAULT REC_FREQ_22 /* Default is not 44.1kHz */
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#define REC_SAMPR_DEFAULT SAMPR_22
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#endif
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/* Define bitmask of input sources - recordable bitmask can be defined
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@ -55,7 +59,6 @@
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#define LCD_DEPTH 16 /* 65536 colours */
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#define LCD_PIXELFORMAT RGB565 /* rgb565 */
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#ifndef BOOTLOADER
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/* define this if you have LCD enable function */
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#define HAVE_LCD_ENABLE
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@ -63,22 +66,21 @@
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should be defined as well. */
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/* TODO: #define HAVE_LCD_SLEEP */
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/* TODO: #define HAVE_LCD_SLEEP_SETTING <= optional */
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#endif
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/* define this if you can flip your LCD */
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#define HAVE_LCD_FLIP
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/* define this if you can invert the colours on your LCD */
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/* TODO: #define HAVE_LCD_INVERT */
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#if 0
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/* Define this if your LCD can set contrast */
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#define HAVE_LCD_CONTRAST
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#define MIN_CONTRAST_SETTING 0
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#define MAX_CONTRAST_SETTING 255
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#define DEFAULT_CONTRAST_SETTING 85
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#endif
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/* #define IRAM_LCDFRAMEBUFFER IDATA_ATTR *//* put the lcd frame buffer in IRAM */
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#define IRAM_LCDFRAMEBUFFER IDATA_ATTR /* put the lcd frame buffer in IRAM */
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#define CONFIG_KEYPAD SANSA_C200_PAD
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@ -91,7 +93,7 @@
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/* There is no hardware tone control */
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#define HAVE_SW_TONE_CONTROLS
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/* The PP5024 has a built-in AustriaMicrosystems AS3514 */
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/* The AS3525 has a built-in AS3514 (or a newer version) */
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#define HAVE_AS3514
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/* define this if you have a real-time clock */
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@ -114,7 +116,7 @@
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#define AB_REPEAT_ENABLE 1
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/* FM Tuner - suspected to be the SI4702 */
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#define CONFIG_TUNER SI4700
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//#define CONFIG_TUNER SI4700
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/* #define HAVE_TUNER_PWR_CTRL */
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/* Define this for LCD backlight available */
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@ -159,30 +161,22 @@
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#define ROM_START 0x00000000
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/* Define this to the CPU frequency */
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#define CPU_FREQ 75000000
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#define CPU_FREQ 250000000
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/* Type of LCD TODO: hopefully the same as the x5 but check this*/
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#define CONFIG_LCD LCD_C200
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/* Offset ( in the firmware file's header ) to the file CRC and data. These are
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only used when loading the old format rockbox.e200 file */
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#define FIRMWARE_OFFSET_FILE_CRC 0x0
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#define FIRMWARE_OFFSET_FILE_DATA 0x8
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#define USB_HANDLED_BY_OF
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#ifndef BOOTLOADER
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#define HAVE_MULTIVOLUME
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#define HAVE_HOTSWAP
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//#define HAVE_MULTIVOLUME
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//#define HAVE_HOTSWAP
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#endif
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/* USB On-the-go */
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#define CONFIG_USBOTG USBOTG_ARC
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/* enable these for the experimental usb stack */
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//#define HAVE_USBSTACK
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//#define USB_VENDOR_ID 0x0781
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//#define USB_PRODUCT_ID 0x7450
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//#define USB_PRODUCT_ID 0x7452
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/* Virtual LED (icon) */
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#define CONFIG_LED LED_VIRTUAL
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@ -26,8 +26,12 @@
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#include "ascodec-target.h"
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#include "as3514.h"
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/* TODO: This file is copy & pasted from backlight-e200v2-fuze.c, as I think
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* it'll be the same for c200v2; prove it */
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bool _backlight_init(void)
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{
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GPIOA_DIR |= 1<<5;
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return true;
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}
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void _backlight_set_brightness(int brightness)
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{
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if (brightness > 0)
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@ -41,12 +45,12 @@ void _backlight_on(void)
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#ifdef HAVE_LCD_ENABLE
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lcd_enable(true); /* power on lcd + visible display */
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#endif
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ascodec_write(AS3514_DCDC15, backlight_brightness);
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GPIOA_PIN(5) = 1<<5;
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}
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void _backlight_off(void)
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{
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ascodec_write(AS3514_DCDC15, 0x0);
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GPIOA_PIN(5) = 0;
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#ifdef HAVE_LCD_ENABLE
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lcd_enable(false); /* power off visible display */
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#endif
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@ -21,7 +21,9 @@
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#ifndef BACKLIGHT_TARGET_H
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#define BACKLIGHT_TARGET_H
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#define _backlight_init() true
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#include <stdbool.h>
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bool _backlight_init(void);
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void _backlight_on(void);
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void _backlight_off(void);
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void _backlight_set_brightness(int brightness);
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@ -19,47 +19,70 @@
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*
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****************************************************************************/
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/* Taken from button-h10.c by Barry Wardell and reverse engineering by MrH. */
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#include "system.h"
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#include "button-target.h"
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#include "button.h"
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#include "backlight.h"
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#include "powermgmt.h"
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#ifndef BOOTLOADER
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/* Buttons */
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unsigned short _dbop_din = 0;
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/* in the lcd driver */
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extern bool lcd_button_support(void);
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static bool hold_button = false;
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#ifndef BOOTLOADER
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static bool hold_button_old = false;
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#define _button_hold() hold_button
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#else
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#define _button_hold() false /* FIXME */
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#endif /* BOOTLOADER */
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static int int_btn = BUTTON_NONE;
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#endif
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void button_init_device(void)
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{
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GPIOA_DIR &= ~(1<<3);
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}
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bool button_hold(void)
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{
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return _button_hold();
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return hold_button;
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}
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/* device buttons */
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void button_int(void)
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static void button_read_dbop(void)
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{
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int delay = 0x50;
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/* Set up dbop for input */
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DBOP_CTRL |= (1<<19); /* Tri-state DBOP on read cycle */
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DBOP_CTRL &= ~(1<<16); /* disable output (1:write enabled) */
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DBOP_TIMPOL_01 = 0xe167e167; /* Set Timing & Polarity regs 0 & 1 */
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DBOP_TIMPOL_23 = 0xe167006e; /* Set Timing & Polarity regs 2 & 3 */
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int i = 50;
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while(i--) asm volatile ("nop\n");
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DBOP_CTRL |= (1<<15); /* start read */
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while (!(DBOP_STAT & (1<<16))); /* wait for valid data */
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_dbop_din = DBOP_DIN; /* Read dbop data*/
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/* Reset dbop for output */
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DBOP_TIMPOL_01 = 0x6e167; /* Set Timing & Polarity regs 0 & 1 */
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DBOP_TIMPOL_23 = 0xa167e06f; /* Set Timing & Polarity regs 2 & 3 */
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DBOP_CTRL |= (1<<16); /* Enable output (0:write disable) */
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DBOP_CTRL &= ~(1<<19); /* Tri-state when no active write */
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}
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/*
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* Get button pressed from hardware
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*/
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int button_read_device(void)
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{
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int delay;
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int dir_save_c = 0;
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int afsel_save_c = 0;
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int_btn = BUTTON_NONE;
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int btn = BUTTON_NONE;
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/* Save the current direction and afsel */
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dir_save_c = GPIOC_DIR;
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afsel_save_c = GPIOC_AFSEL;
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GPIOA_DIR &= ~(1<<3);
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GPIOC_AFSEL &= ~(1<<6|1<<5|1<<4|1<<3);
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GPIOC_DIR |= (1<<6|1<<5|1<<4|1<<3);
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@ -72,32 +95,32 @@ void button_int(void)
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GPIOC_PIN(3) = (1<<3);
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GPIOC_DIR &= ~(1<<6|1<<5|1<<4|1<<3);
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while(delay--);
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delay = 100;
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while(delay--)
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asm volatile("nop\n");
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/* direct GPIO connections */
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if (GPIOA_PIN(3))
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int_btn |= BUTTON_POWER;
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btn |= BUTTON_POWER;
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if (!GPIOC_PIN(6))
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int_btn |= BUTTON_RIGHT;
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btn |= BUTTON_RIGHT;
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if (!GPIOC_PIN(5))
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int_btn |= BUTTON_UP;
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btn |= BUTTON_UP;
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if (!GPIOC_PIN(4))
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int_btn |= BUTTON_SELECT;
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btn |= BUTTON_SELECT;
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if (!GPIOC_PIN(3))
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int_btn |= BUTTON_DOWN;
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btn |= BUTTON_DOWN;
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/* return to settings needed for lcd */
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GPIOC_DIR = dir_save_c;
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GPIOC_AFSEL = afsel_save_c;
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}
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/*
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* Get button pressed from hardware
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*/
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int button_read_device(void)
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{
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/* Read buttons directly */
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button_int();
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if(lcd_button_support())
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button_read_dbop();
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if(_dbop_din & (1<<6))
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btn |= BUTTON_LEFT;
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#ifndef BOOTLOADER
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/* light handling */
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if (hold_button != hold_button_old)
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@ -107,5 +130,5 @@ int button_read_device(void)
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}
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#endif /* BOOTLOADER */
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return int_btn;
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return btn;
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}
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@ -1,429 +0,0 @@
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id: lcd-e200v2.c 19453 2008-12-16 02:50:39Z saratoga $
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*
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* Copyright (C) 2004 by Linus Nielsen Feltzing
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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/* FIXME: Copied from e200v2 lcd driver, unlikely to work, but maybe */
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#include "config.h"
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#include "cpu.h"
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#include "lcd.h"
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#include "kernel.h"
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#include "thread.h"
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#include <string.h>
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#include <stdlib.h>
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#include "file.h"
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#include "debug.h"
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#include "system.h"
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#include "font.h"
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#include "bidi.h"
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#include "clock-target.h"
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static bool display_on = false; /* is the display turned on? */
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static bool display_flipped = false;
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static int y_offset = 0; /* needed for flip */
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/* register defines */
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#define R_START_OSC 0x00
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#define R_DRV_OUTPUT_CONTROL 0x01
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#define R_DRV_WAVEFORM_CONTROL 0x02
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#define R_ENTRY_MODE 0x03
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#define R_COMPARE_REG1 0x04
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#define R_COMPARE_REG2 0x05
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#define R_DISP_CONTROL1 0x07
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#define R_DISP_CONTROL2 0x08
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#define R_DISP_CONTROL3 0x09
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#define R_FRAME_CYCLE_CONTROL 0x0b
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#define R_EXT_DISP_IF_CONTROL 0x0c
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#define R_POWER_CONTROL1 0x10
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#define R_POWER_CONTROL2 0x11
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#define R_POWER_CONTROL3 0x12
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#define R_POWER_CONTROL4 0x13
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#define R_RAM_ADDR_SET 0x21
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#define R_WRITE_DATA_2_GRAM 0x22
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#define R_GAMMA_FINE_ADJ_POS1 0x30
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#define R_GAMMA_FINE_ADJ_POS2 0x31
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#define R_GAMMA_FINE_ADJ_POS3 0x32
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#define R_GAMMA_GRAD_ADJ_POS 0x33
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#define R_GAMMA_FINE_ADJ_NEG1 0x34
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#define R_GAMMA_FINE_ADJ_NEG2 0x35
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#define R_GAMMA_FINE_ADJ_NEG3 0x36
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#define R_GAMMA_GRAD_ADJ_NEG 0x37
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#define R_GAMMA_AMP_ADJ_RES_POS 0x38
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#define R_GAMMA_AMP_AVG_ADJ_RES_NEG 0x39
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#define R_GATE_SCAN_POS 0x40
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#define R_VERT_SCROLL_CONTROL 0x41
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#define R_1ST_SCR_DRV_POS 0x42
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#define R_2ND_SCR_DRV_POS 0x43
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#define R_HORIZ_RAM_ADDR_POS 0x44
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#define R_VERT_RAM_ADDR_POS 0x45
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#define R_ENTRY_MODE_HORZ 0x7030
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#define R_ENTRY_MODE_VERT 0x7038
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#define R_ENTRY_MODE_SOLID_VERT 0x1038
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/* TODO: Implement this function */
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static void lcd_delay(int x)
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{
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/* This is just arbitrary - the OF does something more complex */
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x *= 1024;
|
||||
while (x--);
|
||||
}
|
||||
|
||||
/* DBOP initialisation, do what OF does */
|
||||
static void ams3525_dbop_init(void)
|
||||
{
|
||||
CGU_DBOP = (1<<3) | AS3525_DBOP_DIV;
|
||||
|
||||
DBOP_TIMPOL_01 = 0xe167e167;
|
||||
DBOP_TIMPOL_23 = 0xe167006e;
|
||||
DBOP_CTRL = 0x41008;
|
||||
|
||||
GPIOB_AFSEL = 0xfc;
|
||||
GPIOC_AFSEL = 0xff;
|
||||
|
||||
DBOP_TIMPOL_23 = 0x6000e;
|
||||
DBOP_CTRL = 0x51008;
|
||||
DBOP_TIMPOL_01 = 0x6e167;
|
||||
DBOP_TIMPOL_23 = 0xa167e06f;
|
||||
|
||||
/* TODO: The OF calls some other functions here, but maybe not important */
|
||||
}
|
||||
|
||||
|
||||
static void lcd_write_cmd(int cmd)
|
||||
{
|
||||
/* Write register */
|
||||
DBOP_CTRL &= ~(1<<14);
|
||||
|
||||
DBOP_TIMPOL_23 = 0xa167006e;
|
||||
|
||||
DBOP_DOUT = cmd;
|
||||
|
||||
/* Wait for fifo to empty */
|
||||
while ((DBOP_STAT & (1<<10)) == 0);
|
||||
|
||||
DBOP_TIMPOL_23 = 0xa167e06f;
|
||||
}
|
||||
|
||||
void lcd_write_data(const fb_data* p_bytes, int count)
|
||||
{
|
||||
while (count--)
|
||||
{
|
||||
DBOP_DOUT = *p_bytes++;
|
||||
|
||||
/* Wait for fifo to empty */
|
||||
while ((DBOP_STAT & (1<<10)) == 0);
|
||||
}
|
||||
}
|
||||
|
||||
static void lcd_write_reg(int reg, int value)
|
||||
{
|
||||
unsigned short data = value;
|
||||
|
||||
lcd_write_cmd(reg);
|
||||
lcd_write_data(&data, 1);
|
||||
}
|
||||
|
||||
/*** hardware configuration ***/
|
||||
|
||||
void lcd_set_contrast(int val)
|
||||
{
|
||||
(void)val;
|
||||
}
|
||||
|
||||
void lcd_set_invert_display(bool yesno)
|
||||
{
|
||||
(void)yesno;
|
||||
}
|
||||
|
||||
static void flip_lcd(bool yesno)
|
||||
{
|
||||
(void)yesno;
|
||||
}
|
||||
|
||||
|
||||
/* turn the display upside down (call lcd_update() afterwards) */
|
||||
void lcd_set_flip(bool yesno)
|
||||
{
|
||||
display_flipped = yesno;
|
||||
y_offset = yesno ? 4 : 0; /* FIXME: Is a y_offset needed? */
|
||||
|
||||
if (display_on)
|
||||
flip_lcd(yesno);
|
||||
}
|
||||
|
||||
static void _display_on(void)
|
||||
{
|
||||
/* Initialisation the display the same way as the original firmware */
|
||||
|
||||
lcd_write_reg(R_START_OSC, 0x0001); /* Start Oscilation */
|
||||
|
||||
lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x011b); /* 220 lines, GS=0, SS=1 */
|
||||
|
||||
/* B/C = 1: n-line inversion form
|
||||
* EOR = 1: polarity inversion occurs by applying an EOR to odd/even
|
||||
* frame select signal and an n-line inversion signal.
|
||||
* FLD = 01b: 1 field interlaced scan, external display iface */
|
||||
lcd_write_reg(R_DRV_WAVEFORM_CONTROL, 0x0700);
|
||||
|
||||
/* Address counter updated in horizontal direction; left to right;
|
||||
* vertical increment horizontal increment.
|
||||
* data format for 8bit transfer or spi = 65k (5,6,5) */
|
||||
lcd_write_reg(R_ENTRY_MODE, 0x0030);
|
||||
|
||||
/* Replace data on writing to GRAM */
|
||||
lcd_write_reg(R_COMPARE_REG1, 0);
|
||||
lcd_write_reg(R_COMPARE_REG2, 0);
|
||||
|
||||
lcd_write_reg(R_DISP_CONTROL1, 0x0000); /* GON = 0, DTE = 0, D1-0 = 00b */
|
||||
|
||||
/* Front porch lines: 2; Back porch lines: 2; */
|
||||
lcd_write_reg(R_DISP_CONTROL2, 0x0203);
|
||||
|
||||
/* Scan cycle = 0 frames */
|
||||
lcd_write_reg(R_DISP_CONTROL3, 0x0000);
|
||||
|
||||
/* 16 clocks */
|
||||
lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x0000);
|
||||
|
||||
/* 18-bit RGB interface (one transfer/pixel)
|
||||
* internal clock operation;
|
||||
* System interface/VSYNC interface */
|
||||
lcd_write_reg(R_EXT_DISP_IF_CONTROL, 0x0000);
|
||||
|
||||
|
||||
/* zero everything*/
|
||||
lcd_write_reg(R_POWER_CONTROL1, 0x0000); /* STB = 0, SLP = 0 */
|
||||
|
||||
lcd_delay(10);
|
||||
|
||||
/* initialise power supply */
|
||||
|
||||
/* DC12-10 = 000b: Step-up1 = clock/8,
|
||||
* DC02-00 = 000b: Step-up2 = clock/16,
|
||||
* VC2-0 = 010b: VciOUT = 0.87 * VciLVL */
|
||||
lcd_write_reg(R_POWER_CONTROL2, 0x0002);
|
||||
|
||||
/* VRH3-0 = 1000b: Vreg1OUT = REGP * 1.90 */
|
||||
lcd_write_reg(R_POWER_CONTROL3, 0x0008);
|
||||
|
||||
lcd_delay(40);
|
||||
|
||||
lcd_write_reg(R_POWER_CONTROL4, 0x0000); /* VCOMG = 0 */
|
||||
|
||||
/* This register is unknown */
|
||||
lcd_write_reg(0x56, 0x80f);
|
||||
|
||||
|
||||
lcd_write_reg(R_POWER_CONTROL1, 0x4140);
|
||||
|
||||
lcd_delay(10);
|
||||
|
||||
lcd_write_reg(R_POWER_CONTROL2, 0x0000);
|
||||
lcd_write_reg(R_POWER_CONTROL3, 0x0013);
|
||||
|
||||
lcd_delay(20);
|
||||
|
||||
lcd_write_reg(R_POWER_CONTROL4, 0x6d0e);
|
||||
|
||||
lcd_delay(20);
|
||||
|
||||
lcd_write_reg(R_POWER_CONTROL4, 0x6d0e);
|
||||
|
||||
lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0002);
|
||||
lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0707);
|
||||
lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0182);
|
||||
lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0203);
|
||||
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0706);
|
||||
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0006);
|
||||
lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0706);
|
||||
lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0000);
|
||||
lcd_write_reg(R_GAMMA_AMP_ADJ_RES_POS, 0x030f);
|
||||
lcd_write_reg(R_GAMMA_AMP_AVG_ADJ_RES_NEG, 0x0f08);
|
||||
|
||||
|
||||
lcd_write_reg(R_RAM_ADDR_SET, 0);
|
||||
lcd_write_reg(R_GATE_SCAN_POS, 0);
|
||||
lcd_write_reg(R_VERT_SCROLL_CONTROL, 0);
|
||||
|
||||
lcd_write_reg(R_1ST_SCR_DRV_POS, (LCD_HEIGHT-1) << 8);
|
||||
lcd_write_reg(R_2ND_SCR_DRV_POS, (LCD_HEIGHT-1) << 8);
|
||||
|
||||
lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (LCD_WIDTH-1) << 8);
|
||||
lcd_write_reg(R_VERT_RAM_ADDR_POS, (LCD_HEIGHT-1) << 8);
|
||||
|
||||
|
||||
lcd_write_reg(R_DISP_CONTROL1, 0x0037);
|
||||
|
||||
display_on=true; /* must be done before calling lcd_update() */
|
||||
lcd_update();
|
||||
}
|
||||
|
||||
/* LCD init */
|
||||
void lcd_init_device(void)
|
||||
{
|
||||
ams3525_dbop_init();
|
||||
|
||||
/* Init GPIOs the same as the OF */
|
||||
|
||||
GPIOA_DIR |= (1<<5);
|
||||
GPIOA_PIN(5) = 0;
|
||||
|
||||
GPIOA_PIN(3) = (1<<3);
|
||||
|
||||
GPIOA_DIR |= (3<<3);
|
||||
|
||||
GPIOA_PIN(3) = (1<<3);
|
||||
|
||||
GPIOA_PIN(4) = 0; /*c80b0040 := 0;*/
|
||||
|
||||
GPIOA_DIR |= (1<<7);
|
||||
GPIOA_PIN(7) = 0;
|
||||
|
||||
lcd_delay(1);
|
||||
|
||||
GPIOA_PIN(5) = (1<<5);
|
||||
|
||||
lcd_delay(1);
|
||||
|
||||
_display_on();
|
||||
}
|
||||
|
||||
void lcd_enable(bool on)
|
||||
{
|
||||
if(display_on!=on)
|
||||
{
|
||||
if(on)
|
||||
{
|
||||
_display_on();
|
||||
lcd_activation_call_hook();
|
||||
}
|
||||
else
|
||||
{
|
||||
/* TODO: Implement off sequence */
|
||||
display_on=false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bool lcd_active(void)
|
||||
{
|
||||
return display_on;
|
||||
}
|
||||
|
||||
void lcd_sleep(void)
|
||||
{
|
||||
/* TODO */
|
||||
}
|
||||
|
||||
/*** update functions ***/
|
||||
|
||||
/* Performance function to blit a YUV bitmap directly to the LCD
|
||||
* src_x, src_y, width and height should be even
|
||||
* x, y, width and height have to be within LCD bounds
|
||||
*/
|
||||
void lcd_blit_yuv(unsigned char * const src[3],
|
||||
int src_x, int src_y, int stride,
|
||||
int x, int y, int width, int height)
|
||||
{
|
||||
(void)src;
|
||||
(void)src_x;
|
||||
(void)src_y;
|
||||
(void)stride;
|
||||
(void)x;
|
||||
(void)y;
|
||||
(void)width;
|
||||
(void)height;
|
||||
}
|
||||
|
||||
/* Update the display.
|
||||
This must be called after all other LCD functions that change the display. */
|
||||
void lcd_update(void)
|
||||
{
|
||||
if (!display_on)
|
||||
return;
|
||||
|
||||
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
|
||||
|
||||
/* Set start position and window */
|
||||
lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (LCD_WIDTH-1) << 8);
|
||||
lcd_write_reg(R_VERT_RAM_ADDR_POS,
|
||||
((y_offset + LCD_HEIGHT-1) << 8) | y_offset);
|
||||
lcd_write_reg(R_RAM_ADDR_SET, (y_offset) << 8);
|
||||
|
||||
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
|
||||
|
||||
lcd_write_data((unsigned short *)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT);
|
||||
|
||||
} /* lcd_update */
|
||||
|
||||
|
||||
/* Update a fraction of the display. */
|
||||
void lcd_update_rect(int x, int y, int width, int height)
|
||||
{
|
||||
int ymax;
|
||||
const unsigned short *ptr;
|
||||
|
||||
if (!display_on)
|
||||
return;
|
||||
|
||||
if (x + width > LCD_WIDTH)
|
||||
width = LCD_WIDTH - x; /* Clip right */
|
||||
if (x < 0)
|
||||
width += x, x = 0; /* Clip left */
|
||||
if (width <= 0)
|
||||
return; /* nothing left to do */
|
||||
|
||||
ymax = y + height;
|
||||
if (ymax > LCD_HEIGHT)
|
||||
ymax = LCD_HEIGHT; /* Clip bottom */
|
||||
if (y < 0)
|
||||
y = 0; /* Clip top */
|
||||
if (y >= ymax)
|
||||
return; /* nothing left to do */
|
||||
|
||||
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
|
||||
/* Set start position and window */
|
||||
lcd_write_reg(R_HORIZ_RAM_ADDR_POS,
|
||||
((x + width-1) << 8) | x);
|
||||
lcd_write_reg(R_VERT_RAM_ADDR_POS,
|
||||
((y_offset + y + height - 1) << 8) | (y_offset + y));
|
||||
lcd_write_reg(R_RAM_ADDR_SET, ((y + y_offset) << 8) | x);
|
||||
|
||||
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
|
||||
|
||||
ptr = (unsigned short *)&lcd_framebuffer[y][x];
|
||||
|
||||
do
|
||||
{
|
||||
lcd_write_data(ptr, width);
|
||||
ptr += LCD_WIDTH;
|
||||
}
|
||||
while (++y < ymax);
|
||||
} /* lcd_update_rect */
|
||||
|
|
@ -24,6 +24,11 @@
|
|||
#include "kernel.h"
|
||||
#include "system.h"
|
||||
|
||||
#ifdef SANSA_C200V2
|
||||
/* button driver needs to know if a lcd operation is in progress */
|
||||
static bool lcd_busy = false;
|
||||
#endif
|
||||
|
||||
/* Display status */
|
||||
static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
|
||||
static bool is_lcd_enabled = true;
|
||||
|
|
@ -65,7 +70,7 @@ static bool is_lcd_enabled = true;
|
|||
#define R_SCROLL_START_LINE 0x5a
|
||||
#define R_DATA_FORMAT_SELECT 0x60
|
||||
|
||||
|
||||
#if defined(SANSA_C200)
|
||||
/* wait for LCD */
|
||||
static inline void lcd_wait_write(void)
|
||||
{
|
||||
|
|
@ -73,23 +78,28 @@ static inline void lcd_wait_write(void)
|
|||
}
|
||||
|
||||
/* send LCD data */
|
||||
static void lcd_send_data(unsigned data)
|
||||
static void lcd_send_data(const fb_data *data, int width)
|
||||
{
|
||||
lcd_wait_write();
|
||||
LCD1_DATA = data >> 8;
|
||||
lcd_wait_write();
|
||||
LCD1_DATA = data & 0xff;
|
||||
while(width--)
|
||||
{
|
||||
lcd_wait_write();
|
||||
LCD1_DATA = *data >> 8;
|
||||
lcd_wait_write();
|
||||
LCD1_DATA = *data++ & 0xff;
|
||||
}
|
||||
}
|
||||
|
||||
/* send LCD command */
|
||||
static void lcd_send_command(unsigned cmd)
|
||||
static void lcd_send_command(unsigned char cmd, unsigned char arg)
|
||||
{
|
||||
lcd_wait_write();
|
||||
LCD1_CMD = cmd;
|
||||
/* if the argument is 0, we send a NOP (= 0) command */
|
||||
lcd_wait_write();
|
||||
LCD1_CMD = arg;
|
||||
}
|
||||
|
||||
/* LCD init */
|
||||
void lcd_init_device(void)
|
||||
static inline void c200v1_lcd_init(void)
|
||||
{
|
||||
/* This is from the c200 of bootloader beginning at offset 0xbbf4 */
|
||||
outl(inl(0x70000010) & ~0xfc000000, 0x70000010);
|
||||
|
|
@ -106,70 +116,138 @@ void lcd_init_device(void)
|
|||
|
||||
LCD1_CONTROL = 0x0084; /* bits (9,10) = 00 -> fastest setting */
|
||||
udelay(10000);
|
||||
}
|
||||
|
||||
lcd_send_command(R_STANDBY_OFF);
|
||||
udelay(20000);
|
||||
#define lcd_delay(delay) udelay((delay) * 1000)
|
||||
|
||||
lcd_send_command(R_OSCILLATION_MODE);
|
||||
lcd_send_command(0x01);
|
||||
udelay(20000);
|
||||
#elif defined(SANSA_C200V2)
|
||||
|
||||
lcd_send_command(R_DCDC_AMP_ONOFF);
|
||||
lcd_send_command(0x01);
|
||||
udelay(20000);
|
||||
static inline void lcd_delay(int delay)
|
||||
{ //TUNEME : delay is in milliseconds
|
||||
delay <<= 14;
|
||||
while(delay--) ;
|
||||
}
|
||||
|
||||
lcd_send_command(R_DCDC_AMP_ONOFF);
|
||||
lcd_send_command(0x09);
|
||||
udelay(20000);
|
||||
/* send LCD data */
|
||||
static void lcd_send_data(const fb_data *data, int width)
|
||||
{
|
||||
while(width--)
|
||||
{
|
||||
DBOP_DOUT = *data << 8 | *data >> 8;
|
||||
data++;
|
||||
while ((DBOP_STAT & (1<<10)) == 0);
|
||||
}
|
||||
}
|
||||
|
||||
lcd_send_command(R_DCDC_AMP_ONOFF);
|
||||
lcd_send_command(0x0b);
|
||||
udelay(20000);
|
||||
/* send LCD command */
|
||||
static void lcd_send_command(unsigned char cmd, unsigned char val)
|
||||
{
|
||||
DBOP_TIMPOL_23 = 0xa167006e;
|
||||
|
||||
lcd_send_command(R_DCDC_AMP_ONOFF);
|
||||
lcd_send_command(0x0f);
|
||||
udelay(20000);
|
||||
DBOP_DOUT = cmd | val << 8;
|
||||
|
||||
lcd_send_command(R_DRIVER_OUTPUT_MODE);
|
||||
lcd_send_command(0x07);
|
||||
while ((DBOP_STAT & (1<<10)) == 0);
|
||||
|
||||
lcd_send_command(R_DCDC_SET);
|
||||
lcd_send_command(0x03);
|
||||
DBOP_TIMPOL_23 = 0xa167e06f;
|
||||
}
|
||||
|
||||
lcd_send_command(R_DCDC_CLOCK_DIV);
|
||||
lcd_send_command(0x03);
|
||||
static inline void as3525_dbop_init(void)
|
||||
{
|
||||
CGU_DBOP = (1<<3) | AS3525_DBOP_DIV;
|
||||
|
||||
lcd_send_command(R_TEMP_COMPENSATION);
|
||||
lcd_send_command(0x01);
|
||||
DBOP_TIMPOL_01 = 0xe167e167;
|
||||
DBOP_TIMPOL_23 = 0xe167006e;
|
||||
DBOP_CTRL = 0x40008;
|
||||
|
||||
lcd_send_command(R_CONTRAST_CONTROL1);
|
||||
lcd_send_command(0x55);
|
||||
GPIOB_AFSEL = 0xc;
|
||||
GPIOC_AFSEL = 0xff;
|
||||
|
||||
lcd_send_command(R_ADDRESSING_MODE);
|
||||
lcd_send_command(0x10);
|
||||
DBOP_TIMPOL_23 = 0x6006e;
|
||||
DBOP_CTRL = 0x52008;
|
||||
DBOP_TIMPOL_01 = 0x6e167;
|
||||
DBOP_TIMPOL_23 = 0xa167e06f;
|
||||
|
||||
lcd_send_command(R_ROW_VECTOR_MODE);
|
||||
lcd_send_command(0x0e);
|
||||
lcd_delay(20);
|
||||
}
|
||||
|
||||
lcd_send_command(R_N_LINE_INVERSION);
|
||||
lcd_send_command(0x0d);
|
||||
/* we need to set the DBOP_DOUT pins high, for correct dbop reads */
|
||||
bool lcd_button_support(void)
|
||||
{
|
||||
const fb_data data = 0xffff;
|
||||
|
||||
lcd_send_command(R_FRAME_FREQ_CONTROL);
|
||||
lcd_send_command(0);
|
||||
if (lcd_busy) /* we can't use dbop for reading if we are in the */
|
||||
return false; /* middle of a write operation */
|
||||
|
||||
lcd_send_command(R_ENTRY_MODE);
|
||||
lcd_send_command(0x82);
|
||||
/* use out of screen coordinates */
|
||||
lcd_send_command(R_X_ADDR_AREA, 0);
|
||||
lcd_send_command(1, 0);
|
||||
lcd_send_command(R_Y_ADDR_AREA, 0);
|
||||
lcd_send_command(1, 0);
|
||||
|
||||
lcd_send_command(R_Y_ADDR_AREA); /* vertical dimensions */
|
||||
lcd_send_command(0x1a); /* y1 + 0x1a */
|
||||
lcd_send_command(LCD_HEIGHT - 1 + 0x1a); /* y2 + 0x1a */
|
||||
lcd_send_data(&data, 1);
|
||||
|
||||
lcd_send_command(R_X_ADDR_AREA); /* horizontal dimensions */
|
||||
lcd_send_command(0); /* x1 */
|
||||
lcd_send_command(LCD_WIDTH - 1); /* x2 */
|
||||
udelay(100000);
|
||||
return true;
|
||||
}
|
||||
#endif
|
||||
|
||||
lcd_send_command(R_DISPLAY_ON);
|
||||
/* LCD init */
|
||||
void lcd_init_device(void)
|
||||
{
|
||||
#if defined(SANSA_C200)
|
||||
c200v1_lcd_init();
|
||||
#elif defined(SANSA_C200V2)
|
||||
as3525_dbop_init();
|
||||
#endif
|
||||
|
||||
lcd_send_command(R_STANDBY_OFF, 0);
|
||||
lcd_delay(20);
|
||||
|
||||
lcd_send_command(R_OSCILLATION_MODE, 0x01);
|
||||
lcd_delay(20);
|
||||
|
||||
lcd_send_command(R_DCDC_AMP_ONOFF, 0x01);
|
||||
lcd_delay(20);
|
||||
|
||||
lcd_send_command(R_DCDC_AMP_ONOFF, 0x09);
|
||||
lcd_delay(20);
|
||||
|
||||
lcd_send_command(R_DCDC_AMP_ONOFF, 0x0b);
|
||||
lcd_delay(20);
|
||||
|
||||
lcd_send_command(R_DCDC_AMP_ONOFF, 0x0f);
|
||||
lcd_delay(20);
|
||||
|
||||
lcd_send_command(R_DRIVER_OUTPUT_MODE, 0x07);
|
||||
|
||||
lcd_send_command(R_DCDC_SET, 0x03);
|
||||
|
||||
lcd_send_command(R_DCDC_CLOCK_DIV, 0x03);
|
||||
|
||||
lcd_send_command(R_TEMP_COMPENSATION, 0x01);
|
||||
|
||||
lcd_send_command(R_CONTRAST_CONTROL1, 0x55);
|
||||
|
||||
lcd_send_command(R_ADDRESSING_MODE, 0x10);
|
||||
|
||||
lcd_send_command(R_ROW_VECTOR_MODE, 0x0e);
|
||||
|
||||
lcd_send_command(R_N_LINE_INVERSION, 0x0d);
|
||||
|
||||
lcd_send_command(R_FRAME_FREQ_CONTROL, 0);
|
||||
|
||||
lcd_send_command(R_ENTRY_MODE, 0x82);
|
||||
|
||||
/* vertical dimensions */
|
||||
lcd_send_command(R_Y_ADDR_AREA, 0x1a); /* y1 + 0x1a */
|
||||
lcd_send_command(LCD_HEIGHT - 1 + 0x1a, 0); /* y2 + 0x1a */
|
||||
|
||||
/* horizontal dimensions */
|
||||
lcd_send_command(R_X_ADDR_AREA, 0); /* x1 */
|
||||
lcd_send_command(LCD_WIDTH - 1, 0); /* x2 */
|
||||
|
||||
lcd_delay(100);
|
||||
|
||||
lcd_send_command(R_DISPLAY_ON, 0);
|
||||
}
|
||||
|
||||
/*** hardware configuration ***/
|
||||
|
|
@ -180,8 +258,13 @@ int lcd_default_contrast(void)
|
|||
|
||||
void lcd_set_contrast(int val)
|
||||
{
|
||||
lcd_send_command(R_CONTRAST_CONTROL1);
|
||||
lcd_send_command(val);
|
||||
#ifdef SANSA_C200V2
|
||||
lcd_busy = true;
|
||||
#endif
|
||||
lcd_send_command(R_CONTRAST_CONTROL1, val);
|
||||
#ifdef SANSA_C200V2
|
||||
lcd_busy = false;
|
||||
#endif
|
||||
}
|
||||
|
||||
void lcd_set_invert_display(bool yesno)
|
||||
|
|
@ -196,16 +279,22 @@ void lcd_enable(bool yesno)
|
|||
if (yesno == is_lcd_enabled)
|
||||
return;
|
||||
|
||||
#ifdef SANSA_C200V2
|
||||
lcd_busy = true;
|
||||
#endif
|
||||
if ((is_lcd_enabled = yesno))
|
||||
{
|
||||
lcd_send_command(R_STANDBY_OFF);
|
||||
lcd_send_command(R_DISPLAY_ON);
|
||||
lcd_send_command(R_STANDBY_OFF, 0);
|
||||
lcd_send_command(R_DISPLAY_ON, 0);
|
||||
lcd_activation_call_hook();
|
||||
}
|
||||
else
|
||||
{
|
||||
lcd_send_command(R_STANDBY_ON);
|
||||
lcd_send_command(R_STANDBY_ON, 0);
|
||||
}
|
||||
#ifdef SANSA_C200V2
|
||||
lcd_busy = false;
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
|
|
@ -220,8 +309,13 @@ bool lcd_active(void)
|
|||
/* turn the display upside down (call lcd_update() afterwards) */
|
||||
void lcd_set_flip(bool yesno)
|
||||
{
|
||||
lcd_send_command(R_DRIVER_OUTPUT_MODE);
|
||||
lcd_send_command(yesno ? 0x02 : 0x07);
|
||||
#ifdef SANSA_C200V2
|
||||
lcd_busy = true;
|
||||
#endif
|
||||
lcd_send_command(R_DRIVER_OUTPUT_MODE, yesno ? 0x02 : 0x07);
|
||||
#ifdef SANSA_C200V2
|
||||
lcd_busy = false;
|
||||
#endif
|
||||
}
|
||||
|
||||
/*** update functions ***/
|
||||
|
|
@ -248,6 +342,10 @@ void lcd_blit_yuv(unsigned char * const src[3],
|
|||
unsigned char const * yuv_src[3];
|
||||
off_t z;
|
||||
|
||||
#ifdef SANSA_C200V2
|
||||
lcd_busy = true;
|
||||
#endif
|
||||
|
||||
/* Sorry, but width and height must be >= 2 or else */
|
||||
width &= ~1;
|
||||
height >>= 1;
|
||||
|
|
@ -259,27 +357,21 @@ void lcd_blit_yuv(unsigned char * const src[3],
|
|||
yuv_src[1] = src[1] + (z >> 2) + (src_x >> 1);
|
||||
yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
|
||||
|
||||
lcd_send_command(R_ENTRY_MODE);
|
||||
lcd_send_command(0x80);
|
||||
lcd_send_command(R_ENTRY_MODE, 0x80);
|
||||
|
||||
lcd_send_command(R_X_ADDR_AREA);
|
||||
lcd_send_command(x);
|
||||
lcd_send_command(x + width - 1);
|
||||
lcd_send_command(R_X_ADDR_AREA, x);
|
||||
lcd_send_command(x + width - 1, 0);
|
||||
|
||||
if (lcd_yuv_options & LCD_YUV_DITHER)
|
||||
{
|
||||
do
|
||||
{
|
||||
lcd_send_command(R_Y_ADDR_AREA);
|
||||
lcd_send_command(y);
|
||||
lcd_send_command(y + 1);
|
||||
|
||||
/* NOP needed because on some c200s, the previous lcd_send_command
|
||||
is interpreted as a separate command instead of part of
|
||||
R_Y_ADDR_AREA. */
|
||||
lcd_send_command(R_NOP);
|
||||
lcd_send_command(R_Y_ADDR_AREA, y);
|
||||
lcd_send_command(y + 1, 0);
|
||||
|
||||
#ifndef SANSA_C200V2 // TODO
|
||||
lcd_write_yuv420_lines_odither(yuv_src, width, stride, x, y);
|
||||
#endif
|
||||
yuv_src[0] += stride << 1; /* Skip down two luma lines */
|
||||
yuv_src[1] += stride >> 1; /* Skip down one chroma line */
|
||||
yuv_src[2] += stride >> 1;
|
||||
|
|
@ -291,13 +383,12 @@ void lcd_blit_yuv(unsigned char * const src[3],
|
|||
{
|
||||
do
|
||||
{
|
||||
lcd_send_command(R_Y_ADDR_AREA);
|
||||
lcd_send_command(y);
|
||||
lcd_send_command(y + 1);
|
||||
|
||||
lcd_send_command(R_NOP);
|
||||
lcd_send_command(R_Y_ADDR_AREA, y);
|
||||
lcd_send_command(y + 1, 0);
|
||||
|
||||
#ifndef SANSA_C200V2 // TODO
|
||||
lcd_write_yuv420_lines(yuv_src, width, stride);
|
||||
#endif
|
||||
yuv_src[0] += stride << 1; /* Skip down two luma lines */
|
||||
yuv_src[1] += stride >> 1; /* Skip down one chroma line */
|
||||
yuv_src[2] += stride >> 1;
|
||||
|
|
@ -305,6 +396,10 @@ void lcd_blit_yuv(unsigned char * const src[3],
|
|||
}
|
||||
while (--height > 0);
|
||||
}
|
||||
|
||||
#ifdef SANSA_C200V2
|
||||
lcd_busy = false;
|
||||
#endif
|
||||
}
|
||||
|
||||
/* Update the display.
|
||||
|
|
@ -329,33 +424,32 @@ void lcd_update_rect(int x, int y, int width, int height)
|
|||
|
||||
addr = &lcd_framebuffer[y][x];
|
||||
|
||||
#ifdef SANSA_C200V2
|
||||
lcd_busy = true;
|
||||
#endif
|
||||
|
||||
if (width <= 1) {
|
||||
lcd_send_command(R_ENTRY_MODE); /* The X end address must be larger */
|
||||
lcd_send_command(0x80); /* that the X start address, so we */
|
||||
lcd_send_command(R_X_ADDR_AREA); /* switch to vertical mode for */
|
||||
lcd_send_command(x); /* single column updates and set */
|
||||
lcd_send_command(x + 1); /* the window width to 2 */
|
||||
/* The X end address must be larger than the X start address, so we
|
||||
* switch to vertical mode for single column updates and set the
|
||||
* window width to 2 */
|
||||
lcd_send_command(R_ENTRY_MODE, 0x80);
|
||||
lcd_send_command(R_X_ADDR_AREA, x);
|
||||
lcd_send_command(x + 1, 0);
|
||||
} else {
|
||||
lcd_send_command(R_ENTRY_MODE);
|
||||
lcd_send_command(0x82);
|
||||
lcd_send_command(R_X_ADDR_AREA);
|
||||
lcd_send_command(x);
|
||||
lcd_send_command(x + width - 1);
|
||||
lcd_send_command(R_ENTRY_MODE, 0x82);
|
||||
lcd_send_command(R_X_ADDR_AREA, x);
|
||||
lcd_send_command(x + width - 1, 0);
|
||||
}
|
||||
|
||||
lcd_send_command(R_Y_ADDR_AREA);
|
||||
lcd_send_command(y + 0x1a);
|
||||
lcd_send_command(y + height - 1 + 0x1a);
|
||||
|
||||
/* NOP needed because on some c200s, the previous lcd_send_command is
|
||||
interpreted as a separate command instead of part of R_Y_ADDR_AREA. */
|
||||
lcd_send_command(R_NOP);
|
||||
lcd_send_command(R_Y_ADDR_AREA, y + 0x1a);
|
||||
lcd_send_command(y + height - 1 + 0x1a, 0);
|
||||
|
||||
do {
|
||||
int w = width;
|
||||
do {
|
||||
lcd_send_data(*addr++);
|
||||
} while (--w > 0);
|
||||
addr += LCD_WIDTH - width;
|
||||
lcd_send_data(addr, width);
|
||||
addr += LCD_WIDTH;
|
||||
} while (--height > 0);
|
||||
|
||||
#ifdef SANSA_C200V2
|
||||
lcd_busy = false;
|
||||
#endif
|
||||
}
|
||||
Loading…
Reference in a new issue