diff options
author | Dave Chapman <dave@dchapman.com> | 2008-10-12 16:46:01 +0000 |
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committer | Dave Chapman <dave@dchapman.com> | 2008-10-12 16:46:01 +0000 |
commit | da8bff107e8ed6bf63cc005bfa6c90b12c8b4dd5 (patch) | |
tree | 13c81d9578d8ba3cda2d7c9d20e2a67ac8bee0d3 /firmware/target/arm | |
parent | 0f933f62101a8fe8bb841617217f7e866324820d (diff) | |
download | rockbox-da8bff107e8ed6bf63cc005bfa6c90b12c8b4dd5.tar.gz rockbox-da8bff107e8ed6bf63cc005bfa6c90b12c8b4dd5.zip |
Commit FS#9467 - initial work on port to Sansa Clip by Rafaël Carré and François Dinel. A few cosmetic changes were made by me prior to committing: 1) TAB policing in button-clip.c; 2) Add François Dinel to CREDITS; 3) Add François Dinel as (C) holder in button-target.h (it was previously blank); 4) Add Rockbox header to bootloader/sansa_as3525.c with Rafaël Carré as (C) holder; 5) Change target_id to 50 (next available number) in tools/configure and fixed indentation; 6) Change MODEL_NUMBER in config-clip.h to 50 (next available number); 7) Remove unused in/out macros from system-target.h
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18782 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/arm')
-rw-r--r-- | firmware/target/arm/as3525/boot.lds | 43 | ||||
-rw-r--r-- | firmware/target/arm/as3525/clip/adc-target.h | 24 | ||||
-rw-r--r-- | firmware/target/arm/as3525/clip/backlight-target.h | 37 | ||||
-rw-r--r-- | firmware/target/arm/as3525/clip/button-clip.c | 92 | ||||
-rw-r--r-- | firmware/target/arm/as3525/clip/button-target.h | 60 | ||||
-rw-r--r-- | firmware/target/arm/as3525/clip/lcd-ssd1303.c | 312 | ||||
-rw-r--r-- | firmware/target/arm/as3525/clip/system-target.h | 28 | ||||
-rw-r--r-- | firmware/target/arm/as3525/clip/timer-target.h | 38 | ||||
-rw-r--r-- | firmware/target/arm/as3525/system-as3525.c | 141 |
9 files changed, 775 insertions, 0 deletions
diff --git a/firmware/target/arm/as3525/boot.lds b/firmware/target/arm/as3525/boot.lds new file mode 100644 index 0000000000..f94f1c33da --- /dev/null +++ b/firmware/target/arm/as3525/boot.lds @@ -0,0 +1,43 @@ +#include "config.h" + +ENTRY(start) +OUTPUT_FORMAT(elf32-littlearm) +OUTPUT_ARCH(arm) +STARTUP(target/arm/crt0.o) + +SECTIONS +{ + /*. = IRAMORIG; */ + + .text : { + *(.init.text) + *(.text*) + } + + .data : { + *(.icode) + *(.irodata) + *(.idata) + *(.data*) + *(.ncdata*); + _dataend = . ; + } + + .stack : + { + *(.stack) + _stackbegin = .; + stackbegin = .; + . += 0x2000; + _stackend = .; + stackend = .; + } + + .bss : { + _edata = .; + *(.bss*); + *(.ibss); + *(.ncbss*); + _end = .; + } +} diff --git a/firmware/target/arm/as3525/clip/adc-target.h b/firmware/target/arm/as3525/clip/adc-target.h new file mode 100644 index 0000000000..bea0272496 --- /dev/null +++ b/firmware/target/arm/as3525/clip/adc-target.h @@ -0,0 +1,24 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 ?? + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#ifndef _ADC_TARGET_H_ +#define _ADC_TARGET_H_ + +#endif /* _ADC_TARGET_H_ */ diff --git a/firmware/target/arm/as3525/clip/backlight-target.h b/firmware/target/arm/as3525/clip/backlight-target.h new file mode 100644 index 0000000000..9533d0a6b5 --- /dev/null +++ b/firmware/target/arm/as3525/clip/backlight-target.h @@ -0,0 +1,37 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 ?? + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#ifndef BACKLIGHT_TARGET_H +#define BACKLIGHT_TARGET_H + +static inline bool _backlight_init(void) +{ + return true; +} + +static inline void _backlight_on(void) +{ +} + +static inline void _backlight_off(void) +{ +} + +#endif diff --git a/firmware/target/arm/as3525/clip/button-clip.c b/firmware/target/arm/as3525/clip/button-clip.c new file mode 100644 index 0000000000..faed075c65 --- /dev/null +++ b/firmware/target/arm/as3525/clip/button-clip.c @@ -0,0 +1,92 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 François Dinel + * Copyright (C) 2008 Rafaël Carré + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#include "button-target.h" +#include "as3525.h" + +void button_init_device(void) +{ + GPIOA_DIR &= ~((1<<7) | (1<<3)); + GPIOB_DIR &= ~((1<<2) | (1<<1) | (1<<0)); + GPIOC_PIN(4) = 0x00; + GPIOC_PIN(5) = 0x00; + GPIOC_PIN(6) = 0x00; + GPIOC_DIR |= ((1<<6) | (1<<5) | (1<<4)); +} + +int button_read_device(void) +{ + int result = 0; + + /* direct GPIO connections */ + + if (GPIOA_PIN(7)) + result |= BUTTON_POWER; + + if (GPIOA_PIN(3)) + result |= BUTTON_HOLD; + + /* This is a keypad using C4-C6 as columns and B0-B2 as rows */ + GPIOC_PIN(4) = (1<<4); + + /* C4B0 is unused */ + + if (GPIOB_PIN(1)) + result |= BUTTON_VOLUP; + + if (GPIOB_PIN(2)) + result |= BUTTON_PLAY; + + GPIOC_PIN(4) = 0x00; + + GPIOC_PIN(5) = (1<<5); + + if (GPIOB_PIN(0)) + result |= BUTTON_LEFT; + + if (GPIOB_PIN(1)) + result |= BUTTON_SELECT; + + if (GPIOB_PIN(2)) + result |= BUTTON_RIGHT; + + GPIOC_PIN(5) = 0x00; + + GPIOC_PIN(6) = (1<<6); + + if (GPIOB_PIN(0)) + result |= BUTTON_DOWN; + + if (GPIOB_PIN(1)) + result |= BUTTON_VOLDOWN; + + if (GPIOB_PIN(2)) + result |= BUTTON_HOME; + + GPIOC_PIN(6) = 0x00; + + return result; +} + +bool button_hold(void) +{ + return (GPIOA_PIN(3) != 0); +} diff --git a/firmware/target/arm/as3525/clip/button-target.h b/firmware/target/arm/as3525/clip/button-target.h new file mode 100644 index 0000000000..1fb57ae9e9 --- /dev/null +++ b/firmware/target/arm/as3525/clip/button-target.h @@ -0,0 +1,60 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 François Dinel + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ + +#ifndef _BUTTON_TARGET_H_ +#define _BUTTON_TARGET_H_ + +#include <stdbool.h> +#include "config.h" + +#define HAS_BUTTON_HOLD + +void button_init_device(void); +int button_read_device(void); +bool button_hold(void); + +/* Main unit's buttons */ +#define BUTTON_HOME 0x00000001 + +#define BUTTON_VOLUP 0x00000002 +#define BUTTON_VOLDOWN 0x00000004 + +#define BUTTON_PLAY 0x00000008 +#define BUTTON_DOWN 0x00000010 +#define BUTTON_LEFT 0x00000020 +#define BUTTON_RIGHT 0x00000040 + +#define BUTTON_SELECT 0x00000080 + +#define BUTTON_POWER 0x00000100 +#define BUTTON_HOLD 0x00000200 + +#define BUTTON_MAIN (BUTTON_HOME|BUTTON_VOLUP|BUTTON_VOLDOWN\ + |BUTTON_PLAY|BUTTON_DOWN|BUTTON_LEFT|BUTTON_RIGHT\ + |BUTTON_SELECT|BUTTON_POWER|BUTTON_HOLD) + +#define BUTTON_REMOTE 0 + +/* Software power-off */ +#define POWEROFF_BUTTON BUTTON_POWER +#define POWEROFF_COUNT 40 + +#endif /* _BUTTON_TARGET_H_ */ diff --git a/firmware/target/arm/as3525/clip/lcd-ssd1303.c b/firmware/target/arm/as3525/clip/lcd-ssd1303.c new file mode 100644 index 0000000000..4ae13a5fcc --- /dev/null +++ b/firmware/target/arm/as3525/clip/lcd-ssd1303.c @@ -0,0 +1,312 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2002 by Alan Korr + * Copyright (C) 2008 François Dinel + * Copyright (C) 2008 Rafaël Carré + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#include "config.h" + +#include "hwcompat.h" +#include "kernel.h" +#include "lcd.h" +#include "system.h" +#include "cpu.h" +#include "string.h" + +/*** AS3525 specifics ***/ +#include "as3525.h" + +/*** definitions ***/ + +#define LCD_SET_LOWER_COLUMN_ADDRESS ((char)0x00) +#define LCD_SET_HIGHER_COLUMN_ADDRESS ((char)0x10) +#define LCD_SET_DISPLAY_START_LINE ((char)0x40) +#define LCD_SET_CONTRAST_CONTROL_REGISTER ((char)0x81) +#define LCD_SET_SEGMENT_REMAP ((char)0xA0) +#define LCD_SET_SEGMENT_REMAP_INV ((char)0xA1) +#define LCD_SET_ENTIRE_DISPLAY_OFF ((char)0xA4) +#define LCD_SET_ENTIRE_DISPLAY_ON ((char)0xA5) +#define LCD_SET_NORMAL_DISPLAY ((char)0xA6) +#define LCD_SET_REVERSE_DISPLAY ((char)0xA7) +#define LCD_SET_MULTIPLEX_RATIO ((char)0xA8) +#define LCD_SET_DC_DC ((char)0xAD) +#define LCD_SET_DC_DC_PART2 ((char)0x8A) +#define LCD_SET_DISPLAY_OFF ((char)0xAE) +#define LCD_SET_DISPLAY_ON ((char)0xAF) +#define LCD_SET_PAGE_ADDRESS ((char)0xB0) +#define LCD_SET_COM_OUTPUT_SCAN_DIRECTION ((char)0xC0) +#define LCD_SET_COM_OUTPUT_SCAN_DIRECTION_INV ((char)0xC8) +#define LCD_SET_DISPLAY_CLOCK_AND_OSC_FREQ ((char)0xD5) +#define LCD_SET_VCOM_DESELECT_LEVEL ((char)0xDB) +#define LCD_SET_PRECHARGE_PERIOD ((char)0xD9) +#define LCD_NOP ((char)0xE3) + +/* LCD command codes */ +#define LCD_CNTL_CONTRAST 0x81 /* Contrast */ +#define LCD_CNTL_OUTSCAN 0xc8 /* Output scan direction */ +#define LCD_CNTL_SEGREMAP 0xa1 /* Segment remap */ +#define LCD_CNTL_DISPON 0xaf /* Display on */ + +#define LCD_CNTL_PAGE 0xb0 /* Page address */ +#define LCD_CNTL_HIGHCOL 0x10 /* Upper column address */ +#define LCD_CNTL_LOWCOL 0x00 /* Lower column address */ + +/* DBOP initialisation, do what OF does */ +static void ams3525_dbop_init(void) +{ + int clkdiv = 4 - 1; + + CGU_DBOP |= (1<<3) /* clk enable */ | clkdiv /* clkdiv: 3 bits */ ; + + GPIOB_AFSEL = 0x08; /* DBOP on pin 3 */ + GPIOC_AFSEL = 0x0f; /* DBOP on pins 3:0 */ + + DBOP_CTRL = 0x51008; + DBOP_TIMPOL_01 = 0x6E167; + DBOP_TIMPOL_23 = 0xA167E06F; +} + +void lcd_write_command(int byte) +{ + /* unset D/C# (data or command) */ + GPIOA_PIN(5) = 0; + + /* Write command */ + DBOP_DOUT = (byte << 8) | byte; + + /* While push fifo is not empty */ + while ((DBOP_STAT & (1<<10)) == 0) + ; +} + +void lcd_write_data(const fb_data* p_bytes, int count) +{ + /* set D/C# (data or command) */ + GPIOA_PIN(5) = (1<<5); + + while (count--) + { + /* Write pixels */ + DBOP_DOUT = (*p_bytes << 8) | *p_bytes; + + p_bytes++; /* next packed pixels */ + + /* While push fifo is not empty */ + while ((DBOP_STAT & (1<<10)) == 0) + ; + } +} + + +/** globals **/ + +static int xoffset; /* needed for flip */ +static bool display_on; /* used by lcd_enable */ + +/*** hardware configuration ***/ + +int lcd_default_contrast(void) +{ + return 0x1f; +} + +void lcd_set_contrast(int val) +{ + lcd_write_command(LCD_CNTL_CONTRAST); + lcd_write_command(val); +} + +void lcd_set_invert_display(bool yesno) +{ + if (yesno) + lcd_write_command(LCD_SET_REVERSE_DISPLAY); + else + lcd_write_command(LCD_SET_NORMAL_DISPLAY); +} + +/* turn the display upside down (call lcd_update() afterwards) */ +void lcd_set_flip(bool yesno) +{ + (void)yesno; + /* TODO */ +} + +void lcd_enable(bool enable) +{ + if( (display_on = enable) ) /* simple '=' is not a typo ! */ + lcd_write_command(LCD_SET_DISPLAY_ON); + else + lcd_write_command(LCD_SET_DISPLAY_OFF); +} + +bool lcd_enabled(void) +{ + return display_on; +} + + +/* LCD init, largely based on what OF does */ +void lcd_init_device(void) +{ + int i; +#define LCD_FULLSCREEN (128+4) + fb_data p_bytes[LCD_FULLSCREEN]; /* framebuffer used to clear the screen */ + + ams3525_dbop_init(); + + GPIOA_DIR |= 0x33; /* pins 5:4 and 1:0 out */ + GPIOB_DIR |= 0x60; /* pin 6:5 out */ + + GPIOA_PIN(1) = (1<<1); + GPIOA_PIN(0) = (1<<0); + GPIOA_PIN(4) = 0; + GPIOB_PIN(5) = 0; + GPIOB_PIN(6) = (1<<6); + + /* Set display clock (divide ratio = 1) and oscillator frequency (1) */ + lcd_write_command(LCD_SET_DISPLAY_CLOCK_AND_OSC_FREQ); + lcd_write_command(0x10); + + /* Set VCOM deselect level to 0.76V */ + lcd_write_command(LCD_SET_VCOM_DESELECT_LEVEL); + lcd_write_command(0x34); + + /* Set pre-charge period (p1period is 2 dclk and p2period is 5 dclk) */ + lcd_write_command(LCD_SET_PRECHARGE_PERIOD); + lcd_write_command(0x25); + + /* Set contrast register to 12% */ + lcd_set_contrast(lcd_default_contrast()); + + /* Disable DC-DC */ + lcd_write_command(LCD_SET_DC_DC); + lcd_write_command(LCD_SET_DC_DC_PART2/*|0*/); + + /* Set starting line as 0 */ + lcd_write_command(LCD_SET_DISPLAY_START_LINE /*|(0 & 0x3f)*/); + + /* Column 131 is remapped to SEG0 */ + lcd_write_command(LCD_SET_SEGMENT_REMAP_INV); + + /* Invert COM scan direction (N-1 to 0) */ + lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION_INV); + + /* Set normal display mode (not every pixel ON) */ + lcd_write_command(LCD_SET_ENTIRE_DISPLAY_OFF); + + /* Set normal display mode (not inverted) */ + lcd_write_command(LCD_SET_NORMAL_DISPLAY); + + /* Clear whole framebuffer, including "overscan" + * We don't need to handle that out of screen columns in lcd_clear_display() + * since we will never write into it anymore + */ + lcd_write_command (LCD_SET_HIGHER_COLUMN_ADDRESS /*| 0*/); + lcd_write_command (LCD_SET_LOWER_COLUMN_ADDRESS /*| 0*/); + + memset(p_bytes, 0, sizeof(p_bytes)); /* fills with 0 : pixel off */ + + for(i = 0; i < 8; i++) + { + lcd_write_command (LCD_SET_PAGE_ADDRESS | (i /*& 0xf*/)); + lcd_write_data(p_bytes, LCD_FULLSCREEN /* overscan */); + } + + lcd_update(); +} + +/*** Update functions ***/ + +/* Performance function that works with an external buffer + note that by and bheight are in 8-pixel units! */ +void lcd_blit_mono(const unsigned char *data, int x, int by, int width, + int bheight, int stride) +{ + /* Copy display bitmap to hardware */ + while (bheight--) + { + lcd_write_command (LCD_CNTL_PAGE | (by++ & 0xf)); + lcd_write_command (LCD_CNTL_HIGHCOL | (((x+2+xoffset)>>4) & 0xf)); + lcd_write_command (LCD_CNTL_LOWCOL | ((x+2+xoffset) & 0xf)); + + lcd_write_data(data, width); + data += stride; + } +} + + +/* Performance function that works with an external buffer + note that by and bheight are in 8-pixel units! */ +void lcd_blit_grey_phase(unsigned char *values, unsigned char *phases, + int x, int by, int width, int bheight, int stride) +{ + (void)values; + (void)phases; + (void)x; + (void)by; + (void)width; + (void)bheight; + (void)stride; +} + +/* Update the display. + This must be called after all other LCD functions that change the display. */ +void lcd_update(void) ICODE_ATTR; +void lcd_update(void) +{ + int y; + + /* Copy display bitmap to hardware */ + for (y = 0; y < LCD_FBHEIGHT; y++) + { + lcd_write_command (LCD_CNTL_PAGE | (y & 0xf)); + lcd_write_command (LCD_CNTL_HIGHCOL | (((xoffset+2) >> 4) & 0xf)); + lcd_write_command (LCD_CNTL_LOWCOL | ((xoffset+2) & 0xf)); + + lcd_write_data (lcd_framebuffer[y], LCD_WIDTH); + } +} + +/* Update a fraction of the display. */ +void lcd_update_rect(int, int, int, int) ICODE_ATTR; +void lcd_update_rect(int x, int y, int width, int height) +{ + int ymax; + + /* The Y coordinates have to work on even 8 pixel rows */ + ymax = (y + height-1) >> 3; + y >>= 3; + + if(x + width > LCD_WIDTH) + width = LCD_WIDTH - x; + if (width <= 0) + return; /* nothing left to do, 0 is harmful to lcd_write_data() */ + if(ymax >= LCD_FBHEIGHT) + ymax = LCD_FBHEIGHT-1; + + /* Copy specified rectange bitmap to hardware */ + for (; y <= ymax; y++) + { + lcd_write_command (LCD_CNTL_PAGE | (y & 0xf)); + lcd_write_command (LCD_CNTL_HIGHCOL | (((x+2+xoffset) >> 4) & 0xf)); + lcd_write_command (LCD_CNTL_LOWCOL | ((x+2+xoffset) & 0xf)); + + lcd_write_data (&lcd_framebuffer[y][x], width); + } +} diff --git a/firmware/target/arm/as3525/clip/system-target.h b/firmware/target/arm/as3525/clip/system-target.h new file mode 100644 index 0000000000..b712d1c124 --- /dev/null +++ b/firmware/target/arm/as3525/clip/system-target.h @@ -0,0 +1,28 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 ?? + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#ifndef SYSTEM_TARGET_H +#define SYSTEM_TARGET_H + +#include "system-arm.h" + +#define CPUFREQ_MAX 250000000 + +#endif /* SYSTEM_TARGET_H */ diff --git a/firmware/target/arm/as3525/clip/timer-target.h b/firmware/target/arm/as3525/clip/timer-target.h new file mode 100644 index 0000000000..b81da57885 --- /dev/null +++ b/firmware/target/arm/as3525/clip/timer-target.h @@ -0,0 +1,38 @@ +/*************************************************************************** +* __________ __ ___. +* Open \______ \ ____ ____ | | _\_ |__ _______ ___ +* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / +* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < +* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ +* \/ \/ \/ \/ \/ +* $Id$ +* +* Copyright (C) 2008 ?? +* +* This program is free software; you can redistribute it and/or +* modify it under the terms of the GNU General Public License +* as published by the Free Software Foundation; either version 2 +* of the License, or (at your option) any later version. +* +* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +* KIND, either express or implied. +* +****************************************************************************/ +#ifndef TIMER_TARGET_H +#define TIMER_TARGET_H + +bool __timer_set(long cycles, bool set); +bool __timer_register(void); +void __timer_unregister(void); + +#define __TIMER_SET(cycles, set) \ + __timer_set(cycles, set) + +#define __TIMER_REGISTER(reg_prio, unregister_callback, cycles, \ + int_prio, timer_callback) \ + __timer_register() + +#define __TIMER_UNREGISTER(...) \ + __timer_unregister() + +#endif /* TIMER_TARGET_H */ diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c new file mode 100644 index 0000000000..d65f872384 --- /dev/null +++ b/firmware/target/arm/as3525/system-as3525.c @@ -0,0 +1,141 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2007 by Rob Purchase + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ + +#include "kernel.h" +#include "system.h" +#include "panic.h" + +#define default_interrupt(name) \ + extern __attribute__((weak,alias("UIRQ"))) void name (void) + +void irq_handler(void) __attribute__((interrupt ("IRQ"), naked)); +void fiq_handler(void) __attribute__((interrupt ("FIQ"), naked)); + +default_interrupt(INT_WATCHDOG); +default_interrupt(INT_TIMER1); +default_interrupt(INT_TIMER2); +default_interrupt(INT_USB); +default_interrupt(INT_DMAC); +default_interrupt(INT_NAND); +default_interrupt(INT_IDE); +default_interrupt(INT_MCI0); +default_interrupt(INT_MCI1); +default_interrupt(INT_AUDIO); +default_interrupt(INT_SSP); +default_interrupt(INT_I2C_MS); +default_interrupt(INT_I2C_AUDIO); +default_interrupt(INT_I2SIN); +default_interrupt(INT_I2SOUT); +default_interrupt(INT_UART); +default_interrupt(INT_GPIOD); +default_interrupt(RESERVED1); /* Interrupt 17 : unused */ +default_interrupt(INT_CGU); +default_interrupt(INT_MEMORY_STICK); +default_interrupt(INT_DBOP); +default_interrupt(RESERVED2); /* Interrupt 21 : unused */ +default_interrupt(RESERVED3); /* Interrupt 22 : unused */ +default_interrupt(RESERVED4); /* Interrupt 23 : unused */ +default_interrupt(RESERVED5); /* Interrupt 24 : unused */ +default_interrupt(RESERVED6); /* Interrupt 25 : unused */ +default_interrupt(RESERVED7); /* Interrupt 26 : unused */ +default_interrupt(RESERVED8); /* Interrupt 27 : unused */ +default_interrupt(RESERVED9); /* Interrupt 28 : unused */ +default_interrupt(INT_GPIOA); +default_interrupt(INT_GPIOB); +default_interrupt(INT_GPIOC); + + + +static void (* const irqvector[])(void) = +{ + INT_WATCHDOG, INT_TIMER1, INT_TIMER2, INT_USB, INT_DMAC, INT_NAND, INT_IDE, INT_MCI0, + INT_MCI1, INT_AUDIO, INT_SSP, INT_I2C_MS, INT_I2C_AUDIO, INT_I2SIN, INT_I2SOUT, + INT_UART, INT_GPIOD, RESERVED1 /* 17 */ ,INT_CGU, INT_MEMORY_STICK, INT_DBOP, + RESERVED2 /* 21 */, RESERVED3 /* 22 */, RESERVED4 /* 23 */, RESERVED5 /* 24 */, + RESERVED6 /* 25 */, RESERVED7 /* 26 */, RESERVED8 /* 27 */, RESERVED9 /* 28 */, + INT_GPIOA, INT_GPIOB, INT_GPIOC +}; + +static const char * const irqname[] = +{ + "INT_WATCHDOG", "INT_TIMER1", "INT_TIMER2", "INT_USB", "INT_DMAC", "INT_NAND", + "INT_IDE", "INT_MCI0", "INT_MCI1", "INT_AUDIO", "INT_SSP", "INT_I2C_MS", + "INT_I2C_AUDIO", "INT_I2SIN", "INT_I2SOUT", "INT_UART", "INT_GPIOD", "RESERVED1", + "INT_CGU", "INT_MEMORY_STICK", "INT_DBOP", "RESERVED2", "RESERVED3", "RESERVED4", + "RESERVED5", "RESERVED6", "RESERVED7", "RESERVED8", "RESERVED9", "INT_GPIOA", + "INT_GPIOB", "INT_GPIOC" +}; + +static void UIRQ(void) +{ +/* TODO + unsigned int offset = INTOFFSET; + panicf("Unhandled IRQ %02X: %s", offset, irqname[offset]); +*/ +} + +void irq_handler(void) +{ + /* + * Based on: linux/arch/arm/kernel/entry-armv.S and system-meg-fx.c + */ + + asm volatile( "stmfd sp!, {r0-r7, ip, lr} \n" /* Store context */ + "sub sp, sp, #8 \n"); /* Reserve stack */ + + /* TODO */ +#if 0 + int irq_no = INTOFFSET; /* Read clears the corresponding IRQ status */ +#else + int irq_no = 69; +#endif + if ((irq_no & (1<<31)) == 0) /* Ensure invalid flag is not set */ + { + irqvector[irq_no](); + } + + asm volatile( "add sp, sp, #8 \n" /* Cleanup stack */ + "ldmfd sp!, {r0-r7, ip, lr} \n" /* Restore context */ + "subs pc, lr, #4 \n"); /* Return from IRQ */ +} + +void fiq_handler(void) +{ + asm volatile ( + "subs pc, lr, #4 \r\n" + ); +} + + +void system_init(void) +{ +/* CGU_PERI |= CGU_GPIO_CLOCK_ENABLE; */ +} + +void system_reboot(void) +{ +} + +int system_memory_guard(int newmode) +{ + (void)newmode; + return 0; +} |