diff options
Diffstat (limited to 'target/linux/xburst/files-2.6.32/arch/mips/jz4740')
4 files changed, 603 insertions, 1 deletions
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/Kconfig b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/Kconfig index 015e0560d..71d35f7a0 100644 --- a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/Kconfig +++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/Kconfig @@ -8,6 +8,11 @@ config JZ4740_QI_LB60 select DMA_NONCOHERENT select SOC_JZ4740 +config JZ4740_N516 + bool "Hanvon n516 eBook reader" + select DMA_NONCOHERENT + select SOC_JZ4740 + config JZ4740_N526 bool "Hanvon n526 eBook reader" select DMA_NONCOHERENT diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/Makefile b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/Makefile index b61f5cf8c..f298174e5 100644 --- a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/Makefile +++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/Makefile @@ -12,9 +12,10 @@ obj-$(CONFIG_DEBUG_FS) += clock-debugfs.o # board specific support obj-$(CONFIG_JZ4740_QI_LB60) += board-qi_lb60.o +obj-$(CONFIG_JZ4740_N516) += board-n516.o board-n516-display.o obj-$(CONFIG_JZ4740_N526) += board-n526.o # PM support -obj-$(CONFIG_PM) +=pm.o +obj-$(CONFIG_PM) += pm.o diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n516-display.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n516-display.c new file mode 100644 index 000000000..a0485da20 --- /dev/null +++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n516-display.c @@ -0,0 +1,395 @@ +/* + * board-n516-display.c -- Platform device for N516 display + * + * Copyright (C) 2009, Yauhen Kharuzhy <jekhor@gmail.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive for + * more details. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/fb.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/irq.h> +#include <linux/gpio.h> +#include <linux/jz4740_fb.h> + +#include <asm/mach-jz4740/platform.h> +#include <asm/mach-jz4740/board-n516.h> + +#include <video/metronomefb.h> +#include <linux/console.h> + +extern struct platform_device jz_lcd_device; + +static struct fb_videomode n516_fb_modes[] = { + [0] = { + .name = "Metronome 800x600", + .refresh = 50, + .xres = 400, + .yres = 624, + .hsync_len = 31, + .vsync_len = 23, + .right_margin = 31, + .left_margin = 5, + .upper_margin = 1, + .lower_margin = 2, + .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + }, +}; + +static struct jz4740_fb_platform_data n516_fb_pdata = { + .num_modes = ARRAY_SIZE(n516_fb_modes), + .modes = n516_fb_modes, + .bpp = 16, + .lcd_type = JZ_LCD_TYPE_GENERIC_16_BIT, +}; + +struct n516_board_info { + uint8_t *metromem; + size_t wfm_size; + struct fb_info *host_fbinfo; /* the host LCD controller's fbi */ + unsigned int fw; + unsigned int fh; +}; + +static struct platform_device *n516_device; +static struct n516_board_info n516_board_info; + +static int metronome_gpios[] = { + GPIO_DISPLAY_STBY, + GPIO_DISPLAY_RST_L, + GPIO_DISPLAY_RDY, + GPIO_DISPLAY_ERR, +/* GPIO_DISPLAY_OFF,*/ +}; + +static const char *metronome_gpio_names[] = { + "Metronome STDBY", + "Metronome RST", + "Metronome RDY", + "Metronome ERR", +/* "Metronone OFF",*/ +}; + +static int n516_enable_hostfb(bool enable) +{ + int ret; + int blank = enable ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; + + acquire_console_sem(); + ret = fb_blank(n516_board_info.host_fbinfo, blank); + release_console_sem(); + + return ret; +} + +static int n516_init_metronome_gpios(struct metronomefb_par *par) +{ + int i; + int ret; + + for (i = 0; i < ARRAY_SIZE(metronome_gpios); ++i) { + ret = gpio_request(metronome_gpios[i], metronome_gpio_names[i]); + if (ret) + goto err; + } + + gpio_direction_output(GPIO_DISPLAY_OFF, 0); + gpio_direction_output(GPIO_DISPLAY_RST_L, 0); + gpio_direction_output(GPIO_DISPLAY_STBY, 0); + gpio_direction_input(GPIO_DISPLAY_RDY); + gpio_direction_input(GPIO_DISPLAY_ERR); + + return 0; +err: + for (--i; i >= 0; --i) + gpio_free(metronome_gpios[i]); + + return ret; +} + +static int n516_share_video_mem(struct fb_info *info) +{ + int ret; + + dev_dbg(&n516_device->dev, "ENTER %s\n", __func__); + dev_dbg(&n516_device->dev, "%s, info->var.xres = %u, info->var.yres = %u\n", __func__, info->var.xres, info->var.yres); + /* rough check if this is our desired fb and not something else */ + if ((info->var.xres != n516_fb_pdata.modes[0].xres) + || (info->var.yres != n516_fb_pdata.modes[0].yres)) + return 0; + + /* we've now been notified that we have our new fb */ + n516_board_info.metromem = info->screen_base; + n516_board_info.host_fbinfo = info; + + n516_enable_hostfb(false); + /* try to refcount host drv since we are the consumer after this */ + if (!try_module_get(info->fbops->owner)) + return -ENODEV; + + /* this _add binds metronomefb to n516. metronomefb refcounts n516 */ + ret = platform_device_add(n516_device); + + if (ret) { + platform_device_put(n516_device); + return ret; + } + + /* request our platform independent driver */ + request_module("metronomefb"); + + return 0; +} + +static int n516_unshare_video_mem(struct fb_info *info) +{ + dev_dbg(&n516_device->dev, "ENTER %s\n", __func__); + + if (info != n516_board_info.host_fbinfo) + return 0; + + module_put(n516_board_info.host_fbinfo->fbops->owner); + return 0; +} + +static int n516_fb_notifier_callback(struct notifier_block *self, + unsigned long event, void *data) +{ + struct fb_event *evdata = data; + struct fb_info *info = evdata->info; + + dev_dbg(&n516_device->dev, "ENTER %s\n", __func__); + + if (event == FB_EVENT_FB_REGISTERED) + return n516_share_video_mem(info); + else if (event == FB_EVENT_FB_UNREGISTERED) + return n516_unshare_video_mem(info); + + return 0; +} + +static struct notifier_block n516_fb_notif = { + .notifier_call = n516_fb_notifier_callback, +}; + +/* this gets called as part of our init. these steps must be done now so + * that we can use set_pxa_fb_info */ +static void __init n516_presetup_fb(void) +{ + int padding_size; + int totalsize; + + /* the frame buffer is divided as follows: + command | CRC | padding + 16kb waveform data | CRC | padding + image data | CRC + */ + + n516_board_info.fw = 800; + n516_board_info.fh = 624; + + /* waveform must be 16k + 2 for checksum */ + n516_board_info.wfm_size = roundup(16*1024 + 2, n516_board_info.fw); + + padding_size = PAGE_SIZE + (4 * n516_board_info.fw); + + /* total is 1 cmd , 1 wfm, padding and image */ + totalsize = n516_board_info.fw + n516_board_info.wfm_size; + totalsize += padding_size + (n516_board_info.fw*n516_board_info.fh); + + /* save this off because we're manipulating fw after this and + * we'll need it when we're ready to setup the framebuffer */ + + /* the reason we do this adjustment is because we want to acquire + * more framebuffer memory without imposing custom awareness on the + * underlying driver */ + n516_fb_pdata.modes[0].yres = DIV_ROUND_UP(totalsize, n516_board_info.fw); + + jz4740_framebuffer_device.dev.platform_data = &n516_fb_pdata; + platform_device_register(&jz4740_framebuffer_device); +} + +/* this gets called by metronomefb as part of its init, in our case, we + * have already completed initial framebuffer init in presetup_fb so we + * can just setup the fb access pointers */ +static int n516_setup_fb(struct metronomefb_par *par) +{ + /* metromem was set up by the notifier in share_video_mem so now + * we can use its value to calculate the other entries */ + par->metromem_cmd = (struct metromem_cmd *) n516_board_info.metromem; + par->metromem_wfm = n516_board_info.metromem + n516_board_info.fw; + par->metromem_img = par->metromem_wfm + n516_board_info.wfm_size; + par->metromem_img_csum = (u16 *) (par->metromem_img + (n516_board_info.fw * n516_board_info.fh)); + par->metromem_dma = n516_board_info.host_fbinfo->fix.smem_start; + + return 0; +} + +static int n516_get_panel_type(void) +{ + return 5; +} + +static irqreturn_t n516_handle_irq(int irq, void *dev_id) +{ + struct metronomefb_par *par = dev_id; + + dev_dbg(&par->pdev->dev, "Metronome IRQ! RDY=%d\n", gpio_get_value(GPIO_DISPLAY_RDY)); + wake_up_all(&par->waitq); + + return IRQ_HANDLED; +} + +static void n516_power_ctl(struct metronomefb_par *par, int cmd) +{ + switch (cmd) { + case METRONOME_POWER_OFF: + gpio_set_value(GPIO_DISPLAY_OFF, 1); + n516_enable_hostfb(false); + break; + case METRONOME_POWER_ON: + gpio_set_value(GPIO_DISPLAY_OFF, 0); + n516_enable_hostfb(true); + break; + } +} + +static int n516_get_rdy(struct metronomefb_par *par) +{ + return gpio_get_value(GPIO_DISPLAY_RDY); +} + +static int n516_get_err(struct metronomefb_par *par) +{ + return gpio_get_value(GPIO_DISPLAY_ERR); +} + +static int n516_setup_irq(struct fb_info *info) +{ + int ret; + + dev_dbg(&n516_device->dev, "ENTER %s\n", __func__); + + ret = request_irq(gpio_to_irq(GPIO_DISPLAY_RDY), n516_handle_irq, + IRQF_TRIGGER_RISING, + "n516", info->par); + if (ret) + dev_err(&n516_device->dev, "request_irq failed: %d\n", ret); + + return ret; +} + +static void n516_set_rst(struct metronomefb_par *par, int state) +{ + dev_dbg(&n516_device->dev, "ENTER %s, RDY=%d\n", __func__, gpio_get_value(GPIO_DISPLAY_RDY)); + if (state) + gpio_set_value(GPIO_DISPLAY_RST_L, 1); + else + gpio_set_value(GPIO_DISPLAY_RST_L, 0); +} + +static void n516_set_stdby(struct metronomefb_par *par, int state) +{ + dev_dbg(&n516_device->dev, "ENTER %s, RDY=%d\n", __func__, gpio_get_value(GPIO_DISPLAY_RDY)); + if (state) + gpio_set_value(GPIO_DISPLAY_STBY, 1); + else + gpio_set_value(GPIO_DISPLAY_STBY, 0); +} + +static int n516_wait_event(struct metronomefb_par *par) +{ + unsigned long timeout = jiffies + HZ / 20; + + dev_dbg(&n516_device->dev, "ENTER1 %s, RDY=%d\n", + __func__, gpio_get_value(GPIO_DISPLAY_RDY)); + while (n516_get_rdy(par) && time_before(jiffies, timeout)) + schedule(); + + dev_dbg(&n516_device->dev, "ENTER2 %s, RDY=%d\n", + __func__, gpio_get_value(GPIO_DISPLAY_RDY)); + return wait_event_timeout(par->waitq, + n516_get_rdy(par), HZ * 2) ? 0 : -EIO; +} + +static int n516_wait_event_intr(struct metronomefb_par *par) +{ + unsigned long timeout = jiffies + HZ/20; + + dev_dbg(&n516_device->dev, "ENTER1 %s, RDY=%d\n", + __func__, gpio_get_value(GPIO_DISPLAY_RDY)); + while (n516_get_rdy(par) && time_before(jiffies, timeout)) + schedule(); + + dev_dbg(&n516_device->dev, "ENTER2 %s, RDY=%d\n", + __func__, gpio_get_value(GPIO_DISPLAY_RDY)); + return wait_event_interruptible_timeout(par->waitq, + n516_get_rdy(par), HZ * 2) ? 0 : -EIO; +} + +static void n516_cleanup(struct metronomefb_par *par) +{ + int i; + + free_irq(gpio_to_irq(GPIO_DISPLAY_RDY), par); + for (i = 0; i < ARRAY_SIZE(metronome_gpios); ++i) + gpio_free(metronome_gpios[i]); +} + +static struct metronome_board n516_board __initdata = { + .owner = THIS_MODULE, + .power_ctl = n516_power_ctl, + .setup_irq = n516_setup_irq, + .setup_io = n516_init_metronome_gpios, + .setup_fb = n516_setup_fb, + .set_rst = n516_set_rst, + .get_err = n516_get_err, + .get_rdy = n516_get_rdy, + .set_stdby = n516_set_stdby, + .met_wait_event = n516_wait_event, + .met_wait_event_intr = n516_wait_event_intr, + .get_panel_type = n516_get_panel_type, + .cleanup = n516_cleanup, +}; + +static int __init n516_init(void) +{ + int ret; + + /* Keep the metronome off, until its driver is loaded */ + ret = gpio_request(GPIO_DISPLAY_OFF, "Display off"); + if (ret) + return ret; + + gpio_direction_output(GPIO_DISPLAY_OFF, 1); + + /* before anything else, we request notification for any fb + * creation events */ + fb_register_client(&n516_fb_notif); + + n516_device = platform_device_alloc("metronomefb", -1); + if (!n516_device) + return -ENOMEM; + + /* the n516_board that will be seen by metronomefb is a copy */ + platform_device_add_data(n516_device, &n516_board, + sizeof(n516_board)); + + n516_presetup_fb(); + + return 0; +} +module_init(n516_init); + +MODULE_DESCRIPTION("board driver for n516 display"); +MODULE_AUTHOR("Yauhen Kharuzhy"); +MODULE_LICENSE("GPL"); diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n516.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n516.c new file mode 100644 index 000000000..0e146ac84 --- /dev/null +++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n516.c @@ -0,0 +1,201 @@ +/* + * linux/arch/mips/jz4740/board-516.c + * + * JZ4740 n516 board setup routines. + * + * Copyright (c) 2009, Yauhen Kharuzhy <jekhor@gmail.com> + * + * 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. + */ + +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/ioport.h> +#include <linux/mm.h> +#include <linux/console.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mmc/jz4740_mmc.h> +#include <linux/mtd/jz4740_nand.h> +#include <linux/leds.h> + +#include <linux/power_supply.h> +#include <linux/power/gpio-charger.h> + +#include <linux/i2c.h> +#include <linux/i2c-gpio.h> + +#include <asm/mach-jz4740/board-n516.h> +#include <asm/mach-jz4740/platform.h> + +#include "clock.h" + +static long n516_panic_blink(long time) +{ + gpio_set_value(GPIO_LED_ENABLE, 1); + mdelay(200); + gpio_set_value(GPIO_LED_ENABLE, 0); + mdelay(200); + + return 400; +} + +static void __init board_gpio_setup(void) +{ +/* jz_gpio_enable_pullup(JZ_GPIO_PORTD(23)); + jz_gpio_enable_pullup(JZ_GPIO_PORTD(24));*/ +} + +static struct i2c_gpio_platform_data n516_i2c_pdata = { + .sda_pin = JZ_GPIO_PORTD(23), + .scl_pin = JZ_GPIO_PORTD(24), + .udelay = 2, + .timeout = 3 * HZ, +}; + +static struct platform_device n516_i2c_device = { + .name = "i2c-gpio", + .id = -1, + .dev = { + .platform_data = &n516_i2c_pdata, + }, +}; + +static const struct i2c_board_info n516_i2c_board_info[] = { + { + .type = "LPC524", + .addr = 0x54, + }, + { + .type = "lm75a", + .addr = 0x48, + } +}; + +static struct jz4740_mmc_platform_data n516_mmc_pdata = { + .gpio_card_detect = GPIO_SD_CD_N, + .card_detect_active_low = 1, + .gpio_read_only = -1, + .gpio_power = GPIO_SD_VCC_EN_N, + .power_active_low = 1, +}; + +static struct gpio_led n516_leds[] = { + { + .name = "n516:blue:power", + .gpio = GPIO_LED_ENABLE, + .default_state = LEDS_GPIO_DEFSTATE_ON, + .default_trigger = "nand-disk", + } +}; + +static struct gpio_led_platform_data n516_leds_pdata = { + .leds = n516_leds, + .num_leds = ARRAY_SIZE(n516_leds), +}; + +static struct platform_device n516_leds_device = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &n516_leds_pdata, + }, +}; + +static struct mtd_partition n516_partitions[] = { + { .name = "NAND BOOT partition", + .offset = 0 * 0x100000, + .size = 4 * 0x100000, + }, + { .name = "NAND KERNEL partition", + .offset = 4 * 0x100000, + .size = 4 * 0x100000, + }, + { .name = "NAND ROOTFS partition", + .offset = 8 * 0x100000, + .size = 504 * 0x100000, + }, +}; + +static struct nand_ecclayout n516_ecclayout = { + .eccbytes = 36, + .eccpos = { + 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, + 24, 25, 26, 27, 28, 29, 30, 31, 32, + 33, 34, 35, 36, 37, 38, 39, 40, 41, + }, + .oobfree = { + {.offset = 2, + .length = 4}, + {.offset = 42, + .length = 22}} +}; + +static struct jz_nand_platform_data n516_nand_pdata = { + .ecc_layout = &n516_ecclayout, + .partitions = n516_partitions, + .num_partitions = ARRAY_SIZE(n516_partitions), + .busy_gpio = 94, +}; + +static char *n516_batteries[] = { + "n516_battery", +}; + +static struct gpio_charger_platform_data n516_charger_pdata = { + .name = "usb", + .type = POWER_SUPPLY_TYPE_USB, + .gpio = GPIO_USB_DETECT, + .gpio_active_low = 1, + .batteries = n516_batteries, + .num_batteries = ARRAY_SIZE(n516_batteries), +}; + +static struct platform_device n516_charger_device = { + .name = "gpio-charger", + .dev = { + .platform_data = &n516_charger_pdata, + }, +}; + +static struct platform_device *n516_devices[] __initdata = { + &jz4740_nand_device, + &n516_leds_device, + &jz4740_mmc_device, + &jz4740_i2s_device, + &jz4740_codec_device, + &jz4740_rtc_device, + &jz4740_usb_gdt_device, + &n516_i2c_device, + &n516_charger_device, +}; + +struct jz4740_clock_board_data jz4740_clock_bdata = { + .ext_rate = 12000000, + .rtc_rate = 32768, +}; + +extern int jz_gpiolib_init(void); + +static int n516_setup_platform(void) +{ + if (jz_gpiolib_init()) + panic("Failed to initalize jz gpio\n"); + + jz4740_clock_init(); + board_gpio_setup(); + + panic_blink = n516_panic_blink; + i2c_register_board_info(0, n516_i2c_board_info, ARRAY_SIZE(n516_i2c_board_info)); + jz4740_mmc_device.dev.platform_data = &n516_mmc_pdata; + jz4740_nand_device.dev.platform_data = &n516_nand_pdata; + + return platform_add_devices(n516_devices, ARRAY_SIZE(n516_devices)); +} +arch_initcall(n516_setup_platform); |