From 8876018d25c6a56cce118482c1372bbff344cb23 Mon Sep 17 00:00:00 2001 From: Jens Arnold Date: Mon, 5 Mar 2007 00:04:00 +0000 Subject: Bring up the M5 port to a working stage: Extended numerous explicit checks for IAUDIO_X5 to also check for IAUDIO_M5, moved code around the target tree, added preliminary background for the sim. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12610 a1c6a512-1295-4272-9138-f99709370657 --- .../target/coldfire/iaudio/lcd-remote-iaudio.c | 517 +++++++++++++++++++++ 1 file changed, 517 insertions(+) create mode 100644 firmware/target/coldfire/iaudio/lcd-remote-iaudio.c (limited to 'firmware/target/coldfire/iaudio/lcd-remote-iaudio.c') diff --git a/firmware/target/coldfire/iaudio/lcd-remote-iaudio.c b/firmware/target/coldfire/iaudio/lcd-remote-iaudio.c new file mode 100644 index 0000000000..139ebbc2a3 --- /dev/null +++ b/firmware/target/coldfire/iaudio/lcd-remote-iaudio.c @@ -0,0 +1,517 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2006 by Linus Nielsen Feltzing + * + * All files in this archive are subject to the GNU General Public License. + * See the file COPYING in the source tree root for full license agreement. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#include "config.h" +#include "system.h" +#include "kernel.h" +#include "lcd-remote.h" + +/* The LCD in the iAudio M3/M5/X5 remote control is a Tomato LSI 0350 */ + +#define LCD_SET_DUTY_RATIO 0x48 +#define LCD_SELECT_ADC 0xa0 +#define LCD_SELECT_SHL 0xc0 +#define LCD_SET_COM0 0x44 +#define LCD_OSC_ON 0xab +#define LCD_SELECT_DCDC 0x64 +#define LCD_SELECT_RES 0x20 +#define LCD_SET_VOLUME 0x81 +#define LCD_SET_BIAS 0x50 +#define LCD_CONTROL_POWER 0x28 +#define LCD_DISPLAY_ON 0xae +#define LCD_SET_INITLINE 0x40 +#define LCD_SET_COLUMN 0x10 +#define LCD_SET_PAGE 0xb0 +#define LCD_SET_GRAY 0x88 +#define LCD_SET_PWM_FRC 0x90 +#define LCD_SET_POWER_SAVE 0xa8 +#define LCD_REVERSE 0xa6 + +#define CS_LO and_l(~0x00000020, &GPIO1_OUT) +#define CS_HI or_l(0x00000020, &GPIO1_OUT) +#define CLK_LO and_l(~0x00004000, &GPIO_OUT) +#define CLK_HI or_l(0x00004000, &GPIO_OUT) +#define DATA_LO and_l(~0x00002000, &GPIO_OUT) +#define DATA_HI or_l(0x00002000, &GPIO_OUT) +#define RS_LO and_l(~0x00008000, &GPIO_OUT) +#define RS_HI or_l(0x00008000, &GPIO_OUT) + +/* cached settings values */ +static bool cached_invert = false; +static bool cached_flip = false; +static int cached_contrast = DEFAULT_REMOTE_CONTRAST_SETTING; + +bool remote_initialized = false; + +static void remote_tick(void); + +/* Standard low-level byte writer. Requires CLK high on entry */ +static inline void _write_byte(unsigned data) +{ + asm volatile ( + "move.l (%[gpo0]), %%d0 \n" /* Get current state of data line */ + "and.l %[dbit], %%d0 \n" + "beq.s 1f \n" /* and set it as previous-state bit */ + "bset #8, %[data] \n" + "1: \n" + "move.l %[data], %%d0 \n" /* Compute the 'bit derivative', i.e. a value */ + "lsr.l #1, %%d0 \n" /* with 1's where the data changes from the */ + "eor.l %%d0, %[data] \n" /* previous state, and 0's where it doesn't */ + "swap %[data] \n" /* Shift data to upper byte */ + "lsl.l #8, %[data] \n" + + "move.l %[cbit], %%d1 \n" /* Prepare mask for flipping CLK */ + "or.l %[dbit], %%d1 \n" /* and DATA at once */ + + "lsl.l #1,%[data] \n" /* Shift out MSB */ + "bcc.s 1f \n" + "eor.l %%d1, (%[gpo0]) \n" /* 1: Flip both CLK and DATA */ + ".word 0x51fa \n" /* (trapf.w - shadow next insn) */ + "1: \n" + "eor.l %[cbit], (%[gpo0]) \n" /* else flip CLK only */ + "eor.l %[cbit], (%[gpo0]) \n" /* Flip CLK again */ + + "lsl.l #1,%[data] \n" /* ..unrolled.. */ + "bcc.s 1f \n" + "eor.l %%d1, (%[gpo0]) \n" + ".word 0x51fa \n" + "1: \n" + "eor.l %[cbit], (%[gpo0]) \n" + "eor.l %[cbit], (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %%d1, (%[gpo0]) \n" + ".word 0x51fa \n" + "1: \n" + "eor.l %[cbit], (%[gpo0]) \n" + "eor.l %[cbit], (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %%d1, (%[gpo0]) \n" + ".word 0x51fa \n" + "1: \n" + "eor.l %[cbit], (%[gpo0]) \n" + "eor.l %[cbit], (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %%d1, (%[gpo0]) \n" + ".word 0x51fa \n" + "1: \n" + "eor.l %[cbit], (%[gpo0]) \n" + "eor.l %[cbit], (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %%d1, (%[gpo0]) \n" + ".word 0x51fa \n" + "1: \n" + "eor.l %[cbit], (%[gpo0]) \n" + "eor.l %[cbit], (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %%d1, (%[gpo0]) \n" + ".word 0x51fa \n" + "1: \n" + "eor.l %[cbit], (%[gpo0]) \n" + "eor.l %[cbit], (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %%d1, (%[gpo0]) \n" + ".word 0x51fa \n" + "1: \n" + "eor.l %[cbit], (%[gpo0]) \n" + "eor.l %[cbit], (%[gpo0]) \n" + : /* outputs */ + [data]"+d"(data) + : /* inputs */ + [gpo0]"a"(&GPIO_OUT), + [cbit]"d"(0x00004000), + [dbit]"d"(0x00002000) + : /* clobbers */ + "d0", "d1" + ); +} + +/* Fast low-level byte writer. Don't use with high CPU clock. + * Requires CLK high on entry */ +static inline void _write_fast(unsigned data) +{ + asm volatile ( + "move.w %%sr,%%d3 \n" /* Get current interrupt level */ + "move.w #0x2700,%%sr \n" /* Disable interrupts */ + + "move.l (%[gpo0]), %%d0 \n" /* Get current state of data port */ + "move.l %%d0, %%d1 \n" + "and.l %[dbit], %%d1 \n" /* Check current state of data line */ + "beq.s 1f \n" /* and set it as previous-state bit */ + "bset #8, %[data] \n" + "1: \n" + "move.l %[data], %%d1 \n" /* Compute the 'bit derivative', i.e. a value */ + "lsr.l #1, %%d1 \n" /* with 1's where the data changes from the */ + "eor.l %%d1, %[data] \n" /* previous state, and 0's where it doesn't */ + "swap %[data] \n" /* Shift data to upper byte */ + "lsl.l #8, %[data] \n" + + "lsl.l #1,%[data] \n" /* Shift out MSB */ + "bcc.s 1f \n" + "eor.l %[dbit], %%d0 \n" /* 1: Flip data bit */ + "1: \n" + "eor.l %[cbit], %%d0 \n" /* Flip clock bit */ + "move.l %%d0, (%[gpo0]) \n" /* Output new state */ + "eor.l %[cbit], %%d0 \n" /* Flip clock bit */ + "move.l %%d0, (%[gpo0]) \n" /* Output new state */ + + "lsl.l #1,%[data] \n" /* ..unrolled.. */ + "bcc.s 1f \n" + "eor.l %[dbit], %%d0 \n" + "1: \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %[dbit], %%d0 \n" + "1: \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %[dbit], %%d0 \n" + "1: \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %[dbit], %%d0 \n" + "1: \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %[dbit], %%d0 \n" + "1: \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %[dbit], %%d0 \n" + "1: \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" + "eor.l %[dbit], %%d0 \n" + "1: \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + "eor.l %[cbit], %%d0 \n" + "move.l %%d0, (%[gpo0]) \n" + + "move.w %%d3, %%sr \n" /* Restore interrupt level */ + : /* outputs */ + [data]"+d"(data) + : /* inputs */ + [gpo0]"a"(&GPIO_OUT), + [cbit]"d"(0x00004000), + [dbit]"d"(0x00002000) + : /* clobbers */ + "d0", "d1", "d2", "d3" + ); +} + +void lcd_remote_write_command(int cmd) +{ + RS_LO; + CS_LO; + _write_byte(cmd); + CS_HI; +} + +void lcd_remote_write_command_ex(int cmd, int data) +{ + RS_LO; + CS_LO; + _write_byte(cmd); + _write_byte(data); + CS_HI; +} + +void lcd_remote_write_data(const unsigned char* p_bytes, int count) +{ + const unsigned char *p_end = p_bytes + count; + + RS_HI; + CS_LO; + if (cpu_frequency < 50000000) + { + while (p_bytes < p_end) + _write_fast(*p_bytes++); + } + else + { + while (p_bytes < p_end) + _write_byte(*p_bytes++); + } + CS_HI; +} + +int lcd_remote_default_contrast(void) +{ + return DEFAULT_REMOTE_CONTRAST_SETTING; +} + +void lcd_remote_powersave(bool on) +{ + if(remote_initialized) { + if (on) + lcd_remote_write_command(LCD_SET_POWER_SAVE | 1); + else + lcd_remote_write_command(LCD_SET_POWER_SAVE | 1); + } +} + +void lcd_remote_set_contrast(int val) +{ + if (val < 0) + val = 0; + else if (val > 63) + val = 63; + + cached_contrast = val; + if(remote_initialized) + lcd_remote_write_command_ex(LCD_SET_VOLUME, val); +} + +bool remote_detect(void) +{ + return (GPIO_READ & 0x01000000)?false:true; +} + +void lcd_remote_init_device(void) +{ + or_l(0x0000e000, &GPIO_OUT); + or_l(0x0000e000, &GPIO_ENABLE); + or_l(0x0000e000, &GPIO_FUNCTION); + + or_l(0x00000020, &GPIO1_OUT); + or_l(0x00000020, &GPIO1_ENABLE); + or_l(0x00000020, &GPIO1_FUNCTION); + + and_l(~0x01000000, &GPIO_OUT); + and_l(~0x01000000, &GPIO_ENABLE); + or_l(0x01000000, &GPIO_FUNCTION); + + lcd_remote_clear_display(); + tick_add_task(remote_tick); +} + +void lcd_remote_on(void) +{ + CS_HI; + CLK_HI; + sleep(10); + + lcd_remote_write_command(LCD_SET_DUTY_RATIO); + lcd_remote_write_command(0x70); /* 1/128 */ + + lcd_remote_write_command(LCD_OSC_ON); + + lcd_remote_write_command(LCD_SELECT_DCDC | 2); /* DC/DC 5xboost */ + + lcd_remote_write_command(LCD_SELECT_RES | 7); /* Regulator resistor: 7.2 */ + + lcd_remote_write_command(LCD_SET_BIAS | 6); /* 1/11 */ + + lcd_remote_write_command(LCD_CONTROL_POWER | 7); /* All circuits ON */ + + sleep(30); + + lcd_remote_write_command_ex(LCD_SET_GRAY | 0, 0x00); + lcd_remote_write_command_ex(LCD_SET_GRAY | 1, 0x00); + lcd_remote_write_command_ex(LCD_SET_GRAY | 2, 0x0c); + lcd_remote_write_command_ex(LCD_SET_GRAY | 3, 0x00); + lcd_remote_write_command_ex(LCD_SET_GRAY | 4, 0xcc); + lcd_remote_write_command_ex(LCD_SET_GRAY | 5, 0x00); + lcd_remote_write_command_ex(LCD_SET_GRAY | 6, 0xcc); + lcd_remote_write_command_ex(LCD_SET_GRAY | 7, 0x0c); + + lcd_remote_write_command(LCD_SET_PWM_FRC | 6); /* 4FRC + 12PWM */ + + lcd_remote_write_command(LCD_DISPLAY_ON | 1); /* display on */ + + remote_initialized = true; + + lcd_remote_set_flip(cached_flip); + lcd_remote_set_contrast(cached_contrast); + lcd_remote_set_invert_display(cached_invert); +} + +void lcd_remote_off(void) +{ + remote_initialized = false; + CS_HI; + RS_HI; +} + +void lcd_remote_poweroff(void) +{ + /* Set power save -> Power OFF (VDD - VSS) .. that's it */ + if (remote_initialized && remote_detect()) + lcd_remote_write_command(LCD_SET_POWER_SAVE | 1); +} + +/* Monitor remote hotswap */ +static void remote_tick(void) +{ + static bool last_status = false; + static int countdown = 0; + static int init_delay = 0; + bool current_status; + + current_status = remote_detect(); + + /* Only report when the status has changed */ + if (current_status != last_status) + { + last_status = current_status; + countdown = current_status ? 20*HZ : 1; + } + else + { + /* Count down until it gets negative */ + if (countdown >= 0) + countdown--; + + if (current_status) + { + if (!(countdown % 8)) + { + if (--init_delay <= 0) + { + queue_post(&remote_scroll_queue, REMOTE_INIT_LCD, 0); + init_delay = 6; + } + } + } + else + { + if (countdown == 0) + { + queue_post(&remote_scroll_queue, REMOTE_DEINIT_LCD, 0); + } + } + } +} + +/* Update the display. + This must be called after all other LCD functions that change the display. */ +void lcd_remote_update(void) ICODE_ATTR; +void lcd_remote_update(void) +{ + int y; + if(remote_initialized) { + for(y = 0;y < LCD_REMOTE_FBHEIGHT;y++) { + /* Copy display bitmap to hardware. + The COM48-COM63 lines are not connected so we have to skip + them. Further, the column address doesn't wrap, so we + have to update one page at a time. */ + lcd_remote_write_command(LCD_SET_PAGE | (y>5?y+2:y)); + lcd_remote_write_command_ex(LCD_SET_COLUMN | 0, 0); + lcd_remote_write_data((unsigned char *)lcd_remote_framebuffer[y], + LCD_REMOTE_WIDTH*2); + } + } +} + +/* Update a fraction of the display. */ +void lcd_remote_update_rect(int, int, int, int) ICODE_ATTR; +void lcd_remote_update_rect(int x, int y, int width, int height) +{ + if(remote_initialized) { + int ymax; + + /* The Y coordinates have to work on even 8 pixel rows */ + ymax = (y + height-1) >> 3; + y >>= 3; + + if(x + width > LCD_REMOTE_WIDTH) + width = LCD_REMOTE_WIDTH - x; + if (width <= 0) + return; /* nothing left to do, 0 is harmful to lcd_write_data() */ + if(ymax >= LCD_REMOTE_FBHEIGHT) + ymax = LCD_REMOTE_FBHEIGHT-1; + + /* Copy specified rectangle bitmap to hardware + COM48-COM63 are not connected, so we need to skip those */ + for (; y <= ymax; y++) + { + lcd_remote_write_command(LCD_SET_PAGE | + ((y > 5?y + 2:y) & 0xf)); + lcd_remote_write_command_ex(LCD_SET_COLUMN | ((x >> 4) & 0xf), + x & 0xf); + + lcd_remote_write_data ( + (unsigned char *)&lcd_remote_framebuffer[y][x], width*2); + } + } +} + +void lcd_remote_set_invert_display(bool yesno) +{ + cached_invert = yesno; + if(remote_initialized) + lcd_remote_write_command(LCD_REVERSE | yesno); +} + +void lcd_remote_set_flip(bool yesno) +{ + cached_flip = yesno; + if(remote_initialized) { + if(yesno) { + lcd_remote_write_command(LCD_SELECT_ADC | 0); + lcd_remote_write_command(LCD_SELECT_SHL | 0); + lcd_remote_write_command_ex(LCD_SET_COM0, 16); + } else { + lcd_remote_write_command(LCD_SELECT_ADC | 1); + lcd_remote_write_command(LCD_SELECT_SHL | 8); + lcd_remote_write_command_ex(LCD_SET_COM0, 0); + } + } +} -- cgit v1.2.3