From 69d0dae55bf3da2f356dbd03dba299c708133902 Mon Sep 17 00:00:00 2001 From: Amaury Pouly Date: Sun, 5 Jan 2014 15:20:41 +0100 Subject: Initial commit for the ZEN X-Fi Style Change-Id: Ib25a357a7bafd2ef25f273cadff70fafbd8d4661 --- .../arm/imx233/creative-zen/lcd-zenxfistyle.c | 311 +++++++++++++++++++++ 1 file changed, 311 insertions(+) create mode 100644 firmware/target/arm/imx233/creative-zen/lcd-zenxfistyle.c (limited to 'firmware/target/arm/imx233/creative-zen/lcd-zenxfistyle.c') diff --git a/firmware/target/arm/imx233/creative-zen/lcd-zenxfistyle.c b/firmware/target/arm/imx233/creative-zen/lcd-zenxfistyle.c new file mode 100644 index 0000000000..5a4542ca67 --- /dev/null +++ b/firmware/target/arm/imx233/creative-zen/lcd-zenxfistyle.c @@ -0,0 +1,311 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (c) 2013 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 /* off_t */ +#include +#include "cpu.h" +#include "system.h" +#include "backlight-target.h" +#include "lcd.h" +#include "lcdif-imx233.h" +#include "clkctrl-imx233.h" +#include "pinctrl-imx233.h" +#include "logf.h" + +#ifdef HAVE_LCD_ENABLE +static bool lcd_on; +#endif +static int lcd_model; + +static inline uint32_t encode_16_to_18(uint32_t a) +{ + return ((a & 0xff) << 1) | (((a >> 8) & 0xff) << 10); +} + +static void lcd_write_reg(uint32_t reg, uint32_t data) +{ + uint32_t old_reg = reg; + /* get back to 18-bit word length */ + imx233_lcdif_set_word_length(18); + reg = encode_16_to_18(reg); + data = encode_16_to_18(data); + + imx233_lcdif_pio_send(false, 1, ®); + if(old_reg != 0x22) + imx233_lcdif_pio_send(true, 1, &data); +} + +static void lcd_init_seq(void) +{ + if(lcd_model == 0) + { + lcd_write_reg(0xe3, 0x3008); + lcd_write_reg(0xe7, 0x12); + lcd_write_reg(0xef, 0x1231); + lcd_write_reg(0x01, 0x100); + lcd_write_reg(0x02, 0x700); + lcd_write_reg(0x03, 0x1028); + lcd_write_reg(0x04, 0); + lcd_write_reg(0x08, 0x207); + lcd_write_reg(0x09, 0); + lcd_write_reg(0x0a, 0); + lcd_write_reg(0x0c, 0); + lcd_write_reg(0x0d, 0); + lcd_write_reg(0x0f, 0); + lcd_write_reg(0x10, 0); + lcd_write_reg(0x11, 7); + lcd_write_reg(0x12, 0); + lcd_write_reg(0x13, 0); + mdelay(200); + lcd_write_reg(0x10, 0x1490); + lcd_write_reg(0x11, 0x227); + mdelay(50); + lcd_write_reg(0x12, 0x9c); + mdelay(50); + lcd_write_reg(0x13, 0xc00); + lcd_write_reg(0x29, 5); + lcd_write_reg(0x2b, 0xc); + lcd_write_reg(0x20, 0xef); + lcd_write_reg(0x21, 0); + lcd_write_reg(0x30, 6); + lcd_write_reg(0x31, 0x703); + lcd_write_reg(0x32, 0x206); + lcd_write_reg(0x35, 4); + lcd_write_reg(0x36, 0x1a05); + lcd_write_reg(0x37, 0x600); + lcd_write_reg(0x38, 0x307); + lcd_write_reg(0x39, 0x707); + lcd_write_reg(0x3c, 0x400); + lcd_write_reg(0x3d, 0x50f); + lcd_write_reg(0x50, 0); + lcd_write_reg(0x51, 0xef); + lcd_write_reg(0x52, 0); + lcd_write_reg(0x53, 0x13f); + lcd_write_reg(0x60, 0xa700); + lcd_write_reg(0x61, 1); + lcd_write_reg(0x6a, 0); + lcd_write_reg(0x80, 0); + lcd_write_reg(0x81, 0); + lcd_write_reg(0x82, 0); + lcd_write_reg(0x83, 0); + lcd_write_reg(0x84, 0); + lcd_write_reg(0x85, 0); + lcd_write_reg(0x90, 0x10); + lcd_write_reg(0x92, 0x600); + lcd_write_reg(0x07, 0x133); + } + else + { + lcd_write_reg(0x01, 0x100); + lcd_write_reg(0x02, 0x700); + lcd_write_reg(0x03, 0x1028); + lcd_write_reg(0x04, 0); + lcd_write_reg(0x08, 0x207); + lcd_write_reg(0x09, 0); + lcd_write_reg(0x0a, 0); + lcd_write_reg(0x0c, 0); + lcd_write_reg(0x0d, 0); + lcd_write_reg(0x0f, 0); + lcd_write_reg(0x10, 0); + lcd_write_reg(0x11, 7); + lcd_write_reg(0x12, 0); + lcd_write_reg(0x13, 0); + mdelay(200); + lcd_write_reg(0x10, 0x1290); + lcd_write_reg(0x11, 0x227); + mdelay(50); + lcd_write_reg(0x12, 0x9c); + mdelay(50); + lcd_write_reg(0x13, 0x1f00); + lcd_write_reg(0x29, 0x30); + lcd_write_reg(0x2b, 0xd); + lcd_write_reg(0x20, 0xef); + lcd_write_reg(0x21, 0); + lcd_write_reg(0x30, 0x404); + lcd_write_reg(0x31, 0x404); + lcd_write_reg(0x32, 0x404); + lcd_write_reg(0x37, 0x303); + lcd_write_reg(0x38, 0x303); + lcd_write_reg(0x39, 0x303); + lcd_write_reg(0x35, 0x103); + lcd_write_reg(0x3c, 0x301); + lcd_write_reg(0x36, 0x1e00); + lcd_write_reg(0x3d, 0xf); + lcd_write_reg(0x50, 0); + lcd_write_reg(0x51, 0xef); + lcd_write_reg(0x52, 0); + lcd_write_reg(0x53, 0x13f); + lcd_write_reg(0x60, 0xa700); + lcd_write_reg(0x61, 0); + lcd_write_reg(0x6a, 0); + lcd_write_reg(0x80, 0); + lcd_write_reg(0x81, 0); + lcd_write_reg(0x82, 0); + lcd_write_reg(0x83, 0); + lcd_write_reg(0x84, 0); + lcd_write_reg(0x85, 0); + lcd_write_reg(0x2b, 0xd); + mdelay(50); + lcd_write_reg(0x90, 0x17); + lcd_write_reg(0x92, 0); + lcd_write_reg(0x93, 3); + lcd_write_reg(0x95, 0x110); + lcd_write_reg(0x97, 0); + lcd_write_reg(0x98, 0); + lcd_write_reg(0x07, 0x133); + } +} + +void lcd_init_device(void) +{ + /* clock at 24MHZ */ + imx233_clkctrl_enable(CLK_PIX, false); + imx233_clkctrl_set_div(CLK_PIX, 1); + imx233_clkctrl_set_bypass(CLK_PIX, true); /* use XTAL */ + imx233_clkctrl_enable(CLK_PIX, true); + imx233_lcdif_init(); + imx233_lcdif_set_lcd_databus_width(18); + imx233_lcdif_enable_underflow_recover(true); + imx233_lcdif_setup_system_pins(18); + imx233_lcdif_set_timings(2, 2, 2, 2); + + imx233_pinctrl_acquire(2, 8, "lcd_model"); + imx233_pinctrl_set_function(2, 8, PINCTRL_FUNCTION_GPIO); + imx233_pinctrl_enable_gpio(2, 8, false); + lcd_model = imx233_pinctrl_get_gpio(2, 8); + + // reset device + imx233_lcdif_reset_lcd(true); + mdelay(50); + imx233_lcdif_reset_lcd(false); + mdelay(10); + imx233_lcdif_reset_lcd(true); + + lcd_init_seq(); +#ifdef HAVE_LCD_ENABLE + lcd_on = true; +#endif +} + +#ifdef HAVE_LCD_ENABLE +bool lcd_active(void) +{ + return lcd_on; +} + +static void lcd_enable_seq(bool enable) +{ + if(!enable) + { + } + else + { + } +} + +void lcd_enable(bool enable) +{ + if(lcd_on == enable) + return; + + lcd_on = enable; + + lcd_enable_seq(enable); + if(enable) + send_event(LCD_EVENT_ACTIVATION, NULL); +} +#endif + +void lcd_update(void) +{ + lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT); +} + +/* NOTE the LCD is rotated: it's a 240x320 panel with (0,0) being the bottom-left + * corner when the player is hold in landscape mode. This means x and y axis and + * exchanged and the y axis is reversed. */ + +void lcd_update_rect(int x, int y, int w, int h) +{ +#ifdef HAVE_LCD_ENABLE + if(!lcd_on) + return; +#endif + /* make sure the rectangle is included in the screen */ + x = MIN(x, LCD_WIDTH); + y = MIN(y, LCD_HEIGHT); + w = MIN(w, LCD_WIDTH - x); + h = MIN(h, LCD_HEIGHT - y); + + imx233_lcdif_wait_ready(); + lcd_write_reg(0x50, LCD_HEIGHT - y - h); + lcd_write_reg(0x51, LCD_HEIGHT - y - 1); + lcd_write_reg(0x52, x); + lcd_write_reg(0x53, x + w - 1); + lcd_write_reg(0x20, LCD_HEIGHT - y - 1); + lcd_write_reg(0x21, x); + lcd_write_reg(0x22, 0); + imx233_lcdif_wait_ready(); + imx233_lcdif_set_word_length(16); + imx233_lcdif_set_byte_packing_format(0xf); /* two pixels per 32-bit word */ + + /* there are two cases here: + * - either width = LCD_WIDTH and we can directly memcopy a part of lcd_framebuffer to FRAME + * and send it + * - either width != LCD_WIDTH and we have to build a contiguous copy of the rectangular area + * into FRAME before sending it (which is slower and doesn't use the hardware) + * In all cases, FRAME just acts as a temporary buffer. + * NOTE It's more interesting to do a copy to FRAME in all cases since in system mode + * the clock runs at 24MHz which provides barely 10MB/s bandwidth compared to >100MB/s + * for memcopy operations + */ + if(w == LCD_WIDTH) + { + memcpy((void *)FRAME, FBADDR(x,y), w * h * sizeof(fb_data)); + } + else + { + for(int i = 0; i < h; i++) + memcpy((fb_data *)FRAME + i * w, FBADDR(x,y + i), w * sizeof(fb_data)); + } + /* WARNING The LCDIF has a limitation on the vertical count ! In 16-bit packed mode + * (which we used, ie 16-bit per pixel, 2 pixels per 32-bit words), the v_count + * field must be a multiple of 2. Furthermore, it seems the lcd controller doesn't + * really like when both w and h are even, probably because the writes to the GRAM + * are done on several words and the controller requires dummy writes. + * The workaround is to always make sure that we send a number of pixels which is + * a multiple of 4 so that both the lcdif and the controller are happy. If any + * of w or h is odd, we will send a copy of the first pixels as dummy writes. We will + * send at most 3 bytes. We then send (w * h + 3) / 4 x 4 bytes. + */ + if(w % 2 == 1 || h % 2 == 1) + { + /* copy three pixel after the last one */ + for(int i = 0; i < 3; i++) + *((fb_data *)FRAME + w * h + i) = *((fb_data *)FRAME + i); + /* WARNING we need to update w and h to reflect the pixel count BUT it + * has no relation to w * h (it can even be 2 * prime). Hopefully, w <= 240 and + * h <= 320 so w * h <= 76800 and (w * h + 3) / 4 <= 38400 which fits into + * a 16-bit integer (horizontal count). */ + h = (w * h + 3) / 4; + w = 4; + } + imx233_lcdif_dma_send((void *)FRAME_PHYS_ADDR, w, h); +} -- cgit v1.2.3