/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2011 by Amaury Pouly * * 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 "system.h" #include "system-target.h" #include "pinctrl-imx233.h" #include "generic_i2c.h" #include "synaptics-rmi.h" #include "lcd.h" #include "string.h" #include "usb.h" #include "power-imx233.h" #include "touchpad.h" #ifndef BOOTLOADER bool button_debug_screen(void) { char product_id[RMI_PRODUCT_ID_LEN]; rmi_read(RMI_PRODUCT_ID, RMI_PRODUCT_ID_LEN, product_id); int x_max = rmi_read_single(RMI_2D_SENSOR_XMAX_MSB(0)) << 8 | rmi_read_single(RMI_2D_SENSOR_XMAX_LSB(0)); int y_max = rmi_read_single(RMI_2D_SENSOR_YMAX_MSB(0)) << 8 | rmi_read_single(RMI_2D_SENSOR_YMAX_LSB(0)); int func_presence = rmi_read_single(RMI_FUNCTION_PRESENCE(RMI_2D_TOUCHPAD_FUNCTION)); int sensor_prop = rmi_read_single(RMI_2D_SENSOR_PROP2(0)); int sensor_resol = rmi_read_single(RMI_2D_SENSOR_RESOLUTION(0)); int min_dist = rmi_read_single(RMI_2D_MIN_DIST); int gesture_settings = rmi_read_single(RMI_2D_GESTURE_SETTINGS); int volkeys_delay_counter = 0; union { unsigned char data; signed char value; }sensitivity; rmi_read(RMI_2D_SENSITIVITY_ADJ, 1, &sensitivity.data); /* Device to screen */ int zone_w = LCD_WIDTH; int zone_h = (zone_w * y_max + x_max - 1) / x_max; int zone_x = 0; int zone_y = LCD_HEIGHT - zone_h; #define DX2SX(x) (((x) * zone_w ) / x_max) #define DY2SY(y) (zone_h - ((y) * zone_h ) / y_max) struct viewport report_vp; memset(&report_vp, 0, sizeof(report_vp)); report_vp.x = zone_x; report_vp.y = zone_y; report_vp.width = zone_w; report_vp.height = zone_h; struct viewport gesture_vp; memset(&gesture_vp, 0, sizeof(gesture_vp)); gesture_vp.x = LCD_WIDTH / 2; gesture_vp.y = zone_y - 80; gesture_vp.width = LCD_WIDTH / 2; gesture_vp.height = 80; while(1) { unsigned char sleep_mode = rmi_read_single(RMI_DEVICE_CONTROL) & RMI_SLEEP_MODE_BM; lcd_set_viewport(NULL); lcd_clear_display(); int btns = button_read_device(); lcd_putsf(0, 0, "button bitmap: %x", btns); lcd_putsf(0, 1, "RMI: id=%s p=%x s=%x", product_id, func_presence, sensor_prop); lcd_putsf(0, 2, "xmax=%d ymax=%d res=%d", x_max, y_max, sensor_resol); lcd_putsf(0, 3, "attn=%d ctl=%x int=%x", imx233_pinctrl_get_gpio(0, 27) ? 0 : 1, rmi_read_single(RMI_DEVICE_CONTROL), rmi_read_single(RMI_INTERRUPT_REQUEST)); lcd_putsf(0, 4, "sensi: %d min_dist: %d", (int)sensitivity.value, min_dist); lcd_putsf(0, 5, "gesture: %x", gesture_settings); union { unsigned char data[10]; struct { struct rmi_2d_absolute_data_t absolute; struct rmi_2d_relative_data_t relative; struct rmi_2d_gesture_data_t gesture; }s; }u; int absolute_x = u.s.absolute.x_msb << 8 | u.s.absolute.x_lsb; int absolute_y = u.s.absolute.y_msb << 8 | u.s.absolute.y_lsb; int nr_fingers = u.s.absolute.misc & 7; bool gesture = (u.s.absolute.misc & 8) == 8; int palm_width = u.s.absolute.misc >> 4; rmi_read(RMI_DATA_REGISTER(0), 10, u.data); lcd_putsf(0, 6, "abs: %d %d %d", absolute_x, absolute_y, (int)u.s.absolute.z); lcd_putsf(0, 7, "rel: %d %d", (int)u.s.relative.x, (int)u.s.relative.y); lcd_putsf(0, 8, "gesture: %x %x", u.s.gesture.misc, u.s.gesture.flick); lcd_putsf(0, 9, "misc: w=%d g=%d f=%d", palm_width, gesture, nr_fingers); lcd_putsf(30, 7, "sleep_mode: %d", 1 - sleep_mode); lcd_set_viewport(&report_vp); lcd_set_drawinfo(DRMODE_SOLID, LCD_RGBPACK(0xff, 0, 0), LCD_BLACK); lcd_drawrect(0, 0, zone_w, zone_h); if(nr_fingers == 1) { lcd_set_drawinfo(DRMODE_SOLID, LCD_RGBPACK(0, 0, 0xff), LCD_BLACK); lcd_drawline(DX2SX(absolute_x) - u.s.relative.x, DY2SY(absolute_y) + u.s.relative.y, DX2SX(absolute_x), DY2SY(absolute_y)); lcd_set_drawinfo(DRMODE_SOLID, LCD_RGBPACK(0, 0xff, 0), LCD_BLACK); lcd_fillrect(DX2SX(absolute_x) - 1, DY2SY(absolute_y) - 1, 3, 3); } lcd_set_viewport(&gesture_vp); lcd_set_drawinfo(DRMODE_SOLID, LCD_RGBPACK(0xff, 0xff, 0), LCD_BLACK); if(u.s.gesture.misc & RMI_2D_GEST_MISC_CONFIRMED) { switch(u.s.gesture.misc & RMI_2D_GEST_MISC_TAP_CODE_BM) { case RMI_2D_GEST_MISC_NO_TAP: break; case RMI_2D_GEST_MISC_SINGLE_TAP: lcd_putsf(0, 0, "TAP!"); break; case RMI_2D_GEST_MISC_DOUBLE_TAP: lcd_putsf(0, 0, "DOUBLE TAP!"); break; case RMI_2D_GEST_MISC_TAP_AND_HOLD: lcd_putsf(0, 0, "TAP & HOLD!"); break; default: break; } if(u.s.gesture.misc & RMI_2D_GEST_MISC_FLICK) { lcd_putsf(0, 1, "FLICK!"); int flick_x = u.s.gesture.flick & RMI_2D_GEST_FLICK_X_BM; int flick_y = (u.s.gesture.flick & RMI_2D_GEST_FLICK_Y_BM) >> RMI_2D_GEST_FLICK_Y_BP; #define SIGN4EXT(a) \ if(a & 8) a = -((a ^ 0xf) + 1); SIGN4EXT(flick_x); SIGN4EXT(flick_y); int center_x = (LCD_WIDTH * 2) / 3; int center_y = 40; lcd_drawline(center_x, center_y, center_x + flick_x * 5, center_y - flick_y * 5); } } lcd_update(); if(btns & BUTTON_POWER) break; if(btns & (BUTTON_VOL_DOWN|BUTTON_VOL_UP)) { volkeys_delay_counter++; if(volkeys_delay_counter == 15) { if(btns & BUTTON_VOL_UP) if(sleep_mode > RMI_SLEEP_MODE_FORCE_FULLY_AWAKE) sleep_mode--; if(btns & BUTTON_VOL_DOWN) if(sleep_mode < RMI_SLEEP_MODE_SENSOR_SLEEP) sleep_mode++; rmi_set_sleep_mode(sleep_mode); volkeys_delay_counter = 0; } } yield(); } return true; } struct button_area_t { /* define a rectangle region */ int lx, ly; int rx, ry; int button; }; static struct button_area_t button_areas[] = { {1003, 658, 2006, 1316, BUTTON_SELECT}, {0, 658, 1003, 1316, BUTTON_LEFT}, {2006, 658, 3009, 1316, BUTTON_RIGHT}, {1003, 0 , 2006, 658, BUTTON_DOWN}, {1003, 1316, 2006, 1974, BUTTON_UP}, {2006, 1316, 3009, 1974, BUTTON_PLAYPAUSE}, {0, 1316, 1003, 1974, BUTTON_BACK}, {0, 0 , 1003, 658, BUTTON_BOTTOMLEFT}, {2006, 0 , 3009, 658, BUTTON_BOTTOMRIGHT}, {0, 0, 0, 0, 0}, }; #define RMI_INTERRUPT 1 #define RMI_SET_SENSITIVITY 2 #define RMI_SET_SLEEP_MODE 3 /* timeout before lowering touchpad power from lack of activity */ #define ACTIVITY_TMO (5 * HZ) static int touchpad_btns = 0; static long rmi_stack [DEFAULT_STACK_SIZE/sizeof(long)]; static const char rmi_thread_name[] = "rmi"; static struct event_queue rmi_queue; static unsigned last_activity = 0; static bool t_enable = true; static int find_button(int x, int y) { struct button_area_t *area = button_areas; for(; area->button != 0; area++) { if(area->lx <= x && x <= area->rx && area->ly <= y && y <= area->ry) return area->button; } return 0; } static int touchpad_read_device(void) { return touchpad_btns; } static void rmi_attn_cb(int bank, int pin, intptr_t user) { (void) bank; (void) pin; (void) user; /* the callback will not be fired until interrupt is enabled back so * the queue will not overflow or contain multiple RMI_INTERRUPT events */ queue_post(&rmi_queue, RMI_INTERRUPT, 0); } static void do_interrupt(void) { /* rmi_set_sleep_mode() does not do anything if the value * it is given is already the one setted */ rmi_set_sleep_mode(RMI_SLEEP_MODE_LOW_POWER); last_activity = current_tick; /* clear interrupt */ rmi_read_single(RMI_INTERRUPT_REQUEST); /* read data */ union { unsigned char data[10]; struct { struct rmi_2d_absolute_data_t absolute; struct rmi_2d_relative_data_t relative; struct rmi_2d_gesture_data_t gesture; }s; }u; rmi_read(RMI_DATA_REGISTER(0), 10, u.data); int absolute_x = u.s.absolute.x_msb << 8 | u.s.absolute.x_lsb; int absolute_y = u.s.absolute.y_msb << 8 | u.s.absolute.y_lsb; int nr_fingers = u.s.absolute.misc & 7; if(nr_fingers == 1) touchpad_btns = find_button(absolute_x, absolute_y); else touchpad_btns = 0; /* enable interrupt */ imx233_pinctrl_setup_irq(0, 27, true, true, false, &rmi_attn_cb, 0); } void touchpad_enable_device(bool en) { t_enable = en; queue_post(&rmi_queue, RMI_SET_SLEEP_MODE, en ? RMI_SLEEP_MODE_LOW_POWER : RMI_SLEEP_MODE_SENSOR_SLEEP); } void touchpad_set_sensitivity(int level) { queue_post(&rmi_queue, RMI_SET_SENSITIVITY, level); } static void rmi_thread(void) { struct queue_event ev; while(1) { /* make sure to timeout often enough for the activity timeout to take place */ queue_wait_w_tmo(&rmi_queue, &ev, HZ); /* handle usb connect and ignore all messages except rmi interrupts */ switch(ev.id) { case SYS_USB_CONNECTED: usb_acknowledge(SYS_USB_CONNECTED_ACK); break; case RMI_SET_SENSITIVITY: /* handle negative values as well ! */ rmi_write_single(RMI_2D_SENSITIVITY_ADJ, (unsigned char)(int8_t)ev.data); break; case RMI_SET_SLEEP_MODE: /* reset activity */ last_activity = current_tick; rmi_set_sleep_mode(ev.data); break; case RMI_INTERRUPT: do_interrupt(); break; default: /* activity timeout */ if(TIME_AFTER(current_tick, last_activity + ACTIVITY_TMO)) { /* don't change power mode if touchpad is disabled, it's already in sleep mode */ if(t_enable) rmi_set_sleep_mode(RMI_SLEEP_MODE_VERY_LOW_POWER); } break; } } } void button_init_device(void) { /* Synaptics TouchPad information: * - product id: 1533 * - nr function: 1 (0x10 = 2D touchpad) * 2D Touchpad information (function 0x10) * - nr data sources: 3 * - standard layout * - extra data registers: 7 * - nr sensors: 1 * 2D Touchpad Sensor #0 information: * - has relative data: yes * - has palm detect: yes * - has multi finger: yes * - has enhanced gesture: yes * - has scroller: no * - has 2D scrollers: no * - Maximum X: 3009 * - Maxumum Y: 1974 * - Resolution: 82 * * ATTENTION line: B0P27 asserted low * * The B0P26 line seems to be related to the touchpad */ /* touchpad power */ imx233_pinctrl_acquire(0, 26, "touchpad power"); imx233_pinctrl_set_function(0, 26, PINCTRL_FUNCTION_GPIO); imx233_pinctrl_enable_gpio(0, 26, false); imx233_pinctrl_set_drive(0, 26, PINCTRL_DRIVE_8mA); rmi_init(0x40); char product_id[RMI_PRODUCT_ID_LEN]; rmi_read(RMI_PRODUCT_ID, RMI_PRODUCT_ID_LEN, product_id); /* The OF adjust the sensitivity based on product_id[1] compared to 2. * Since it doesn't to work great, just hardcode the sensitivity to * some reasonable value for now. */ rmi_write_single(RMI_2D_SENSITIVITY_ADJ, 13); rmi_write_single(RMI_2D_GESTURE_SETTINGS, RMI_2D_GESTURE_PRESS_TIME_300MS | RMI_2D_GESTURE_FLICK_DIST_4MM << RMI_2D_GESTURE_FLICK_DIST_BP | RMI_2D_GESTURE_FLICK_TIME_700MS << RMI_2D_GESTURE_FLICK_TIME_BP); queue_init(&rmi_queue, true); create_thread(rmi_thread, rmi_stack, sizeof(rmi_stack), 0, rmi_thread_name IF_PRIO(, PRIORITY_USER_INTERFACE) IF_COP(, CPU)); /* low power mode seems to be enough for normal use */ rmi_set_sleep_mode(RMI_SLEEP_MODE_LOW_POWER); /* enable interrupt */ imx233_pinctrl_acquire(0, 27, "touchpad int"); imx233_pinctrl_set_function(0, 27, PINCTRL_FUNCTION_GPIO); imx233_pinctrl_enable_gpio(0, 27, false); imx233_pinctrl_setup_irq(0, 27, true, true, false, &rmi_attn_cb, 0); /* Volume down */ imx233_pinctrl_acquire(1, 30, "volume down"); imx233_pinctrl_set_function(1, 30, PINCTRL_FUNCTION_GPIO); imx233_pinctrl_enable_gpio(1, 30, false); } #else void button_init_device(void) { /* Volume down */ imx233_pinctrl_acquire(1, 30, "volume down"); imx233_pinctrl_set_function(1, 30, PINCTRL_FUNCTION_GPIO); imx233_pinctrl_enable_gpio(1, 30, false); } int touchpad_read_device(void) { return 0; } #endif int button_read_device(void) { int res = 0; if(!imx233_pinctrl_get_gpio(1, 30)) res |= BUTTON_VOL_DOWN; /* The imx233 uses the voltage on the PSWITCH pin to detect power up/down * events as well as recovery mode. Since the power button is the power button * and the volume up button is recovery, it is not possible to know whether * power button is down when volume up is down (except if there is another * method but volume up and power don't seem to be wired to GPIO pins). * As a probable consequence of that, it has been reported that pressing * volume up sometimes return BUTTON_POWER instead of BUTTON_VOL_UP. The * following volume_power_lock prevent BUTTON_POWER to happen if volume up * has been send since a very short time. */ static int volume_power_lock = 0; if(volume_power_lock > 0) volume_power_lock--; switch(BF_RD(POWER_STS, PSWITCH)) { case 1: if(volume_power_lock == 0) res |= BUTTON_POWER; break; case 3: res |= BUTTON_VOL_UP; volume_power_lock = 5; break; default: break; } return res | touchpad_filter(touchpad_read_device()); }