From 275a30092e84f9d026a18bcf90b2f29721302a33 Mon Sep 17 00:00:00 2001 From: Robert Kukla Date: Sun, 26 Jul 2009 14:26:14 +0000 Subject: initial commit of remote support for m:robe 100 courtesy of lowlight; simulator support including small fixes for the m:robe 500 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22053 a1c6a512-1295-4272-9138-f99709370657 --- .../arm/olympus/mrobe-100/lcd-remote-mr100.c | 562 +++++++++++++++++++++ 1 file changed, 562 insertions(+) create mode 100644 firmware/target/arm/olympus/mrobe-100/lcd-remote-mr100.c (limited to 'firmware/target/arm/olympus/mrobe-100/lcd-remote-mr100.c') diff --git a/firmware/target/arm/olympus/mrobe-100/lcd-remote-mr100.c b/firmware/target/arm/olympus/mrobe-100/lcd-remote-mr100.c new file mode 100644 index 0000000000..036b6ae71c --- /dev/null +++ b/firmware/target/arm/olympus/mrobe-100/lcd-remote-mr100.c @@ -0,0 +1,562 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2009 Mark Arigo + * + * 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 "cpu.h" +#include "kernel.h" +#include "thread.h" +#include "system.h" +#include "lcd-remote.h" +#include "button.h" +#include "button-target.h" + +/* Temporary defines until we sort out why the gui stuff doesn't like this size + (I believe the status bar isn't doing sanity checks and is writing outside + the frame buffer size). */ +#define RC_WIDTH 79 +#define RC_HEIGHT 16 + +#define RC_CONTRAST_MASK 0x000000ff +#define RC_SCREEN_ON 0x00000100 +#define RC_BACKLIGHT_ON 0x00000200 + +#define RC_DEV_INIT 0x00001000 +#define RC_DETECTED 0x00002000 +#define RC_AWAKE 0x00004000 +#define RC_POWER_OFF 0x00008000 + +#define RC_UPDATE_LCD 0x00010000 +#define RC_UPDATE_CONTROLLER 0x00020000 +#define RC_UPDATE_ICONS 0x00040000 +#define RC_UPDATE_MASK (RC_UPDATE_LCD|RC_UPDATE_CONTROLLER|RC_UPDATE_ICONS) + +#define RC_TX_ERROR 0x00100000 +#define RC_RX_ERROR 0x00200000 +#define RC_TIMEOUT_ERROR 0x00400000 +#define RC_ERROR_MASK (RC_TX_ERROR|RC_RX_ERROR|RC_TIMEOUT_ERROR) + +#define RC_FORCE_DETECT 0x80000000 + +#define RX_READY 0x01 +#define TX_READY 0x20 + +#define POLL_TIMEOUT 50000 + +bool remote_initialized = false; +unsigned int rc_status = 0; +unsigned char rc_buf[5]; + +/* ================================================== */ +/* Remote thread functions */ +/* These functions are private to the remote thread */ +/* ================================================== */ +static struct wakeup rc_thread_wakeup; +static unsigned int remote_thread_id; +static int remote_stack[256/sizeof(int)]; +static const char * const remote_thread_name = "remote"; + +static bool remote_wait_ready(int ready_mask) +{ + unsigned long current; + unsigned long start = USEC_TIMER; + unsigned long timeout = start + POLL_TIMEOUT; + + rc_status &= ~RC_TIMEOUT_ERROR; + + if (start <= timeout) + { + do + { + if (SER1_LSR & ready_mask) + return true; + + //~ sleep(1); + + current = USEC_TIMER; + } while (current < timeout); + } + else + { + do + { + if (SER1_LSR & ready_mask) + return true; + + //~ sleep(1); + + current = USEC_TIMER - POLL_TIMEOUT; + } while (current < start); + } + + rc_status |= RC_TIMEOUT_ERROR; + return false; +} + +static bool remote_rx(void) +{ + int i; + unsigned char chksum[2]; + + rc_status &= ~RC_RX_ERROR; + + for (i = 0; i < 5; i++) + { + if (!remote_wait_ready(RX_READY)) + { + rc_status |= RC_RX_ERROR; + return false; + } + + rc_buf[i] = SER1_RBR; + } + + /* check opcode */ + if ((rc_buf[0] & 0xf0) != 0xf0) + { + rc_status |= RC_RX_ERROR; + return false; + } + + /* verify the checksums */ + chksum[0] = chksum[1] = 0; + for (i = 0; i < 3; i++) + { + chksum[0] ^= rc_buf[i]; + chksum[1] += rc_buf[i]; + } + + if ((chksum[0] != rc_buf[3]) && (chksum[1] != rc_buf[4])) + { + rc_status |= RC_RX_ERROR; + return false; + } + + /* reception error */ + if ((rc_buf[0] & 0x1) || (rc_buf[0] & 0x2) || (rc_buf[0] & 0x4)) + { + rc_status |= RC_RX_ERROR; + return false; + } + + return true; +} + +static bool remote_tx(unsigned char *data, int len) +{ + int i; + unsigned char chksum[2]; + + rc_status &= ~RC_TX_ERROR; + + chksum[0] = chksum[1] = 0; + + for (i = 0; i < len; i++) + { + if (!remote_wait_ready(TX_READY)) + { + rc_status |= RC_TX_ERROR; + return false; + } + + SER1_THR = data[i]; + chksum[0] ^= data[i]; + chksum[1] += data[i]; + } + + for (i = 0; i < 2; i++) + { + if (!remote_wait_ready(TX_READY)) + { + rc_status |= RC_TX_ERROR; + return false; + } + + SER1_THR = chksum[i]; + } + + return remote_rx(); +} + +static void remote_dev_enable(bool enable) +{ + if (enable) + { + outl(inl(0x70000018) | 0xaa000, 0x70000018); + DEV_INIT2 &= ~0x800; + + GPIO_CLEAR_BITWISE(GPIOL_OUTPUT_VAL, 0x80); + GPIO_SET_BITWISE(GPIOL_OUTPUT_EN, 0x80); + + DEV_EN |= DEV_SER1; + + SER1_RBR; + SER1_LCR = 0x80; + SER1_DLL = 0x50; + SER1_DLM = 0x00; + SER1_LCR = 0x03; + SER1_FCR = 0x07; + + rc_status |= RC_DEV_INIT; + } + else + { + outl(inl(0x70000018) & ~0xaa000, 0x70000018); + DEV_INIT2 &= ~0x800; + + GPIO_SET_BITWISE(GPIOL_OUTPUT_VAL, 0x80); + GPIO_SET_BITWISE(GPIOL_OUTPUT_EN, 0x80); + + DEV_RS |= DEV_SER1; + nop; + DEV_RS &= ~DEV_SER1; + + DEV_EN &= ~DEV_SER1; + + rc_status &= ~RC_DEV_INIT; + } +} + +void remote_update_lcd(void) +{ + int x, y, draw_now; + unsigned char data[RC_WIDTH + 7]; + + /* If the draw_now bit is set, the draw occurs directly on the LCD. + Otherwise, the data is stored in an off-screen buffer and displayed + the next time a draw operation is executed with this flag set. */ + draw_now = 0; + + for (y = 0; y < 2; y++) + { + data[0] = 0x51; + data[1] = draw_now << 7; + data[2] = RC_WIDTH; /* width */ + data[3] = 0; /* x1 */ + data[4] = y << 3; /* y1 */ + data[5] = RC_WIDTH; /* x2 */ + data[6] = (y + 1) << 3; /* y2 */ + + for (x = 0; x < RC_WIDTH; x++) + data[x + 7] = lcd_remote_framebuffer[y][x]; + + remote_tx(data, RC_WIDTH + 7); + + draw_now = 1; + } +} + +static void remote_update_controller(void) +{ + unsigned char data[3]; + + data[0] = 0x31; + data[1] = 0x00; + if (rc_status & RC_SCREEN_ON) + data[1] |= 0x80; + if (rc_status & RC_BACKLIGHT_ON) + data[1] |= 0x40; + data[2] = (unsigned char)(rc_status & RC_CONTRAST_MASK); + remote_tx(data, 3); +} + +#if 0 +static void remote_update_icons(unsigned char symbols) +{ + unsigned char data[2]; + + if (!(rc_status & RC_AWAKE) && !(rc_status & RC_SCREEN_ON)) + return; + + data[0] = 0x41; + data[1] = symbols; + remote_tx(data, 2); +} +#endif + +static bool remote_nop(void) +{ + unsigned char val[2]; + + val[0] = 0x11; + val[1] = 0x30; + return remote_tx(val, 2); +} + +static void remote_wake(void) +{ + if (remote_nop()) + { + rc_status |= RC_AWAKE; + return; + } + + rc_status &= ~RC_AWAKE; + return; +} + +static void remote_sleep(void) +{ + unsigned char data[2]; + + if (rc_status & RC_AWAKE) + { + data[0] = 0x71; + data[1] = 0x30; + remote_tx(data, 2); + + udelay(25000); + } + + rc_status &= ~RC_AWAKE; +} + +static void remote_off(void) +{ + if (rc_status & RC_AWAKE) + remote_sleep(); + + if (rc_status & RC_DEV_INIT) + remote_dev_enable(false); + + rc_status &= ~(RC_DETECTED | RC_ERROR_MASK | RC_UPDATE_MASK); + remote_initialized = false; +} + +static void remote_on(void) +{ + if (!(rc_status & RC_DEV_INIT)) + remote_dev_enable(true); + + remote_wake(); + + if (rc_status & RC_AWAKE) + { + rc_status |= RC_DETECTED; + remote_initialized = true; + + rc_status |= (RC_UPDATE_MASK | RC_SCREEN_ON | RC_BACKLIGHT_ON); + //~ remote_update_icons(0xf0); /* show battery */ + } + else + { + rc_status &= ~RC_DETECTED; + remote_initialized = false; + } +} + +static void remote_thread(void) +{ + int rc_thread_sleep_count = 10; + int rc_thread_wait_timeout = TIMEOUT_BLOCK; + + while (1) + { + wakeup_wait(&rc_thread_wakeup, rc_thread_wait_timeout); + + /* Error handling (most likely due to remote not present) */ + if (rc_status & RC_ERROR_MASK) + { + if (--rc_thread_sleep_count == 0) + rc_status |= RC_POWER_OFF; + } + + /* Power-off (thread sleeps) */ + if (rc_status & RC_POWER_OFF) + { + remote_off(); + + rc_thread_sleep_count = 10; + rc_thread_wait_timeout = TIMEOUT_BLOCK; + + continue; + } + + /* Detection */ + if (!(rc_status & RC_DETECTED)) + { + rc_thread_wait_timeout = HZ; + + if (headphones_inserted()) + { + remote_on(); + + if (rc_status & RC_AWAKE) + { + rc_thread_sleep_count = 10; + rc_thread_wait_timeout = HZ/20; /* ~50ms for updates */ + } + } + else + { + if (--rc_thread_sleep_count == 0) + rc_status &= ~RC_POWER_OFF; + } + + continue; + } + + /* Update the remote (one per wakeup cycle) */ + if (headphones_inserted() && (rc_status & RC_AWAKE)) + { + if (rc_status & RC_SCREEN_ON) + { + /* In order of importance */ + if (rc_status & RC_UPDATE_CONTROLLER) + { + remote_update_controller(); + rc_status &= ~RC_UPDATE_CONTROLLER; + } + else if (rc_status & RC_UPDATE_LCD) + { + remote_update_lcd(); + rc_status &= ~RC_UPDATE_LCD; + } + else + { + remote_nop(); + } + } + else + { + remote_nop(); + } + } + } +} + +/* ============================================= */ +/* Public functions */ +/* These should only set the update flags that */ +/* will be executed in the remote thread. */ +/* ============================================= */ +bool lcd_remote_read_device(unsigned char *data) +{ + if (!(rc_status & RC_AWAKE) || (rc_status & RC_ERROR_MASK)) + return false; + + /* Return the most recent data. While the remote is plugged, + this is updated ~50ms */ + data[0] = rc_buf[0]; + data[1] = rc_buf[1]; + data[2] = rc_buf[2]; + data[3] = rc_buf[3]; + data[4] = rc_buf[4]; + + return true; +} + +void lcd_remote_set_invert_display(bool yesno) +{ + /* dummy function...need to introduce HAVE_LCD_REMOTE_INVERT */ + (void)yesno; +} + +/* turn the display upside down (call lcd_remote_update() afterwards) */ +void lcd_remote_set_flip(bool yesno) +{ + /* dummy function...need to introduce HAVE_LCD_REMOTE_FLIP */ + (void)yesno; +} + +int lcd_remote_default_contrast(void) +{ + return DEFAULT_REMOTE_CONTRAST_SETTING; +} + +void lcd_remote_set_contrast(int val) +{ + rc_status = (rc_status & ~RC_CONTRAST_MASK) | (val & RC_CONTRAST_MASK); + rc_status |= RC_UPDATE_CONTROLLER; +} + +void lcd_remote_backlight(bool on) +{ + if (on) + rc_status |= RC_BACKLIGHT_ON; + else + rc_status &= ~RC_BACKLIGHT_ON; + + rc_status |= RC_UPDATE_CONTROLLER; +} + +void lcd_remote_off(void) +{ + /* should only be used to power off at shutdown */ + rc_status |= RC_POWER_OFF; + wakeup_signal(&rc_thread_wakeup); + + /* wait until the things are powered off */ + while (rc_status & RC_DEV_INIT) + sleep(HZ/10); +} + +void lcd_remote_on(void) +{ + /* Only wake the remote thread if it's in the blocked state. */ + struct thread_entry *rc_thread = thread_id_entry(remote_thread_id); + if (rc_thread->state == STATE_BLOCKED || (rc_status & RC_FORCE_DETECT)) + { + rc_status &= ~RC_FORCE_DETECT; + rc_status &= ~RC_POWER_OFF; + wakeup_signal(&rc_thread_wakeup); + } +} + +bool remote_detect(void) +{ + return (rc_status & RC_DETECTED); +} + +void lcd_remote_init_device(void) +{ + /* reset */ + remote_dev_enable(false); + rc_status |= RC_FORCE_DETECT; /* force detection at startup */ + + /* unknown */ + GPIO_SET_BITWISE(GPIOL_ENABLE, 0x80); + GPIO_CLEAR_BITWISE(GPIOL_OUTPUT_VAL, 0x80); + GPIO_SET_BITWISE(GPIOL_OUTPUT_EN, 0x80); + + /* a thread is required to poll & update the remote */ + wakeup_init(&rc_thread_wakeup); + remote_thread_id = create_thread(remote_thread, remote_stack, + sizeof(remote_stack), 0, remote_thread_name + IF_PRIO(, PRIORITY_SYSTEM) + IF_COP(, CPU)); +} + +/* Update the display. + This must be called after all other LCD functions that change the display. */ +void lcd_remote_update(void) +{ + rc_status |= RC_UPDATE_LCD; +} + +/* Update a fraction of the display. */ +void lcd_remote_update_rect(int x, int y, int width, int height) +{ + (void)x; + (void)y; + (void)width; + (void)height; + + rc_status |= RC_UPDATE_LCD; +} -- cgit v1.2.3