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Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-pxa/am200epd.c')
-rw-r--r--ANDROID_3.4.5/arch/arm/mach-pxa/am200epd.c387
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diff --git a/ANDROID_3.4.5/arch/arm/mach-pxa/am200epd.c b/ANDROID_3.4.5/arch/arm/mach-pxa/am200epd.c
deleted file mode 100644
index ccdac4b6..00000000
--- a/ANDROID_3.4.5/arch/arm/mach-pxa/am200epd.c
+++ /dev/null
@@ -1,387 +0,0 @@
-/*
- * am200epd.c -- Platform device for AM200 EPD kit
- *
- * Copyright (C) 2008, Jaya Kumar
- *
- * 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.
- *
- * Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
- *
- * This work was made possible by help and equipment support from E-Ink
- * Corporation. http://support.eink.com/community
- *
- * This driver is written to be used with the Metronome display controller.
- * on the AM200 EPD prototype kit/development kit with an E-Ink 800x600
- * Vizplex EPD on a Gumstix board using the Lyre interface board.
- *
- */
-
-#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 <mach/pxa25x.h>
-#include <mach/gumstix.h>
-#include <mach/pxafb.h>
-
-#include "generic.h"
-
-#include <video/metronomefb.h>
-
-static unsigned int panel_type = 6;
-static struct platform_device *am200_device;
-static struct metronome_board am200_board;
-
-static struct pxafb_mode_info am200_fb_mode_9inch7 = {
- .pixclock = 40000,
- .xres = 1200,
- .yres = 842,
- .bpp = 16,
- .hsync_len = 2,
- .left_margin = 2,
- .right_margin = 2,
- .vsync_len = 1,
- .upper_margin = 2,
- .lower_margin = 25,
- .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
-};
-
-static struct pxafb_mode_info am200_fb_mode_8inch = {
- .pixclock = 40000,
- .xres = 1088,
- .yres = 791,
- .bpp = 16,
- .hsync_len = 28,
- .left_margin = 8,
- .right_margin = 30,
- .vsync_len = 8,
- .upper_margin = 10,
- .lower_margin = 8,
- .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
-};
-
-static struct pxafb_mode_info am200_fb_mode_6inch = {
- .pixclock = 40189,
- .xres = 832,
- .yres = 622,
- .bpp = 16,
- .hsync_len = 28,
- .left_margin = 34,
- .right_margin = 34,
- .vsync_len = 25,
- .upper_margin = 0,
- .lower_margin = 2,
- .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
-};
-
-static struct pxafb_mach_info am200_fb_info = {
- .modes = &am200_fb_mode_6inch,
- .num_modes = 1,
- .lcd_conn = LCD_TYPE_COLOR_TFT | LCD_PCLK_EDGE_FALL |
- LCD_AC_BIAS_FREQ(24),
-};
-
-/* register offsets for gpio control */
-#define LED_GPIO_PIN 51
-#define STDBY_GPIO_PIN 48
-#define RST_GPIO_PIN 49
-#define RDY_GPIO_PIN 32
-#define ERR_GPIO_PIN 17
-#define PCBPWR_GPIO_PIN 16
-static int gpios[] = { LED_GPIO_PIN , STDBY_GPIO_PIN , RST_GPIO_PIN,
- RDY_GPIO_PIN, ERR_GPIO_PIN, PCBPWR_GPIO_PIN };
-static char *gpio_names[] = { "LED" , "STDBY" , "RST", "RDY", "ERR", "PCBPWR" };
-
-static int am200_init_gpio_regs(struct metronomefb_par *par)
-{
- int i;
- int err;
-
- for (i = 0; i < ARRAY_SIZE(gpios); i++) {
- err = gpio_request(gpios[i], gpio_names[i]);
- if (err) {
- dev_err(&am200_device->dev, "failed requesting "
- "gpio %s, err=%d\n", gpio_names[i], err);
- goto err_req_gpio;
- }
- }
-
- gpio_direction_output(LED_GPIO_PIN, 0);
- gpio_direction_output(STDBY_GPIO_PIN, 0);
- gpio_direction_output(RST_GPIO_PIN, 0);
-
- gpio_direction_input(RDY_GPIO_PIN);
- gpio_direction_input(ERR_GPIO_PIN);
-
- gpio_direction_output(PCBPWR_GPIO_PIN, 0);
-
- return 0;
-
-err_req_gpio:
- while (--i >= 0)
- gpio_free(gpios[i]);
-
- return err;
-}
-
-static void am200_cleanup(struct metronomefb_par *par)
-{
- int i;
-
- free_irq(PXA_GPIO_TO_IRQ(RDY_GPIO_PIN), par);
-
- for (i = 0; i < ARRAY_SIZE(gpios); i++)
- gpio_free(gpios[i]);
-}
-
-static int am200_share_video_mem(struct fb_info *info)
-{
- /* rough check if this is our desired fb and not something else */
- if ((info->var.xres != am200_fb_info.modes->xres)
- || (info->var.yres != am200_fb_info.modes->yres))
- return 0;
-
- /* we've now been notified that we have our new fb */
- am200_board.metromem = info->screen_base;
- am200_board.host_fbinfo = info;
-
- /* try to refcount host drv since we are the consumer after this */
- if (!try_module_get(info->fbops->owner))
- return -ENODEV;
-
- return 0;
-}
-
-static int am200_unshare_video_mem(struct fb_info *info)
-{
- dev_dbg(&am200_device->dev, "ENTER %s\n", __func__);
-
- if (info != am200_board.host_fbinfo)
- return 0;
-
- module_put(am200_board.host_fbinfo->fbops->owner);
- return 0;
-}
-
-static int am200_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(&am200_device->dev, "ENTER %s\n", __func__);
-
- if (event == FB_EVENT_FB_REGISTERED)
- return am200_share_video_mem(info);
- else if (event == FB_EVENT_FB_UNREGISTERED)
- return am200_unshare_video_mem(info);
-
- return 0;
-}
-
-static struct notifier_block am200_fb_notif = {
- .notifier_call = am200_fb_notifier_callback,
-};
-
-/* this gets called as part of our init. these steps must be done now so
- * that we can use pxa_set_fb_info */
-static void __init am200_presetup_fb(void)
-{
- int fw;
- int fh;
- int padding_size;
- int totalsize;
-
- switch (panel_type) {
- case 6:
- am200_fb_info.modes = &am200_fb_mode_6inch;
- break;
- case 8:
- am200_fb_info.modes = &am200_fb_mode_8inch;
- break;
- case 97:
- am200_fb_info.modes = &am200_fb_mode_9inch7;
- break;
- default:
- dev_err(&am200_device->dev, "invalid panel_type selection,"
- " setting to 6\n");
- am200_fb_info.modes = &am200_fb_mode_6inch;
- break;
- }
-
- /* the frame buffer is divided as follows:
- command | CRC | padding
- 16kb waveform data | CRC | padding
- image data | CRC
- */
-
- fw = am200_fb_info.modes->xres;
- fh = am200_fb_info.modes->yres;
-
- /* waveform must be 16k + 2 for checksum */
- am200_board.wfm_size = roundup(16*1024 + 2, fw);
-
- padding_size = PAGE_SIZE + (4 * fw);
-
- /* total is 1 cmd , 1 wfm, padding and image */
- totalsize = fw + am200_board.wfm_size + padding_size + (fw*fh);
-
- /* save this off because we're manipulating fw after this and
- * we'll need it when we're ready to setup the framebuffer */
- am200_board.fw = fw;
- am200_board.fh = fh;
-
- /* the reason we do this adjustment is because we want to acquire
- * more framebuffer memory without imposing custom awareness on the
- * underlying pxafb driver */
- am200_fb_info.modes->yres = DIV_ROUND_UP(totalsize, fw);
-
- /* we divide since we told the LCD controller we're 16bpp */
- am200_fb_info.modes->xres /= 2;
-
- pxa_set_fb_info(NULL, &am200_fb_info);
-
-}
-
-/* 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 am200_setup_fb(struct metronomefb_par *par)
-{
- int fw;
- int fh;
-
- fw = am200_board.fw;
- fh = am200_board.fh;
-
- /* 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 *) am200_board.metromem;
- par->metromem_wfm = am200_board.metromem + fw;
- par->metromem_img = par->metromem_wfm + am200_board.wfm_size;
- par->metromem_img_csum = (u16 *) (par->metromem_img + (fw * fh));
- par->metromem_dma = am200_board.host_fbinfo->fix.smem_start;
-
- return 0;
-}
-
-static int am200_get_panel_type(void)
-{
- return panel_type;
-}
-
-static irqreturn_t am200_handle_irq(int irq, void *dev_id)
-{
- struct metronomefb_par *par = dev_id;
-
- wake_up_interruptible(&par->waitq);
- return IRQ_HANDLED;
-}
-
-static int am200_setup_irq(struct fb_info *info)
-{
- int ret;
-
- ret = request_irq(PXA_GPIO_TO_IRQ(RDY_GPIO_PIN), am200_handle_irq,
- IRQF_DISABLED|IRQF_TRIGGER_FALLING,
- "AM200", info->par);
- if (ret)
- dev_err(&am200_device->dev, "request_irq failed: %d\n", ret);
-
- return ret;
-}
-
-static void am200_set_rst(struct metronomefb_par *par, int state)
-{
- gpio_set_value(RST_GPIO_PIN, state);
-}
-
-static void am200_set_stdby(struct metronomefb_par *par, int state)
-{
- gpio_set_value(STDBY_GPIO_PIN, state);
-}
-
-static int am200_wait_event(struct metronomefb_par *par)
-{
- return wait_event_timeout(par->waitq, gpio_get_value(RDY_GPIO_PIN), HZ);
-}
-
-static int am200_wait_event_intr(struct metronomefb_par *par)
-{
- return wait_event_interruptible_timeout(par->waitq,
- gpio_get_value(RDY_GPIO_PIN), HZ);
-}
-
-static struct metronome_board am200_board = {
- .owner = THIS_MODULE,
- .setup_irq = am200_setup_irq,
- .setup_io = am200_init_gpio_regs,
- .setup_fb = am200_setup_fb,
- .set_rst = am200_set_rst,
- .set_stdby = am200_set_stdby,
- .met_wait_event = am200_wait_event,
- .met_wait_event_intr = am200_wait_event_intr,
- .get_panel_type = am200_get_panel_type,
- .cleanup = am200_cleanup,
-};
-
-static unsigned long am200_pin_config[] __initdata = {
- GPIO51_GPIO,
- GPIO49_GPIO,
- GPIO48_GPIO,
- GPIO32_GPIO,
- GPIO17_GPIO,
- GPIO16_GPIO,
-};
-
-int __init am200_init(void)
-{
- int ret;
-
- /* before anything else, we request notification for any fb
- * creation events */
- fb_register_client(&am200_fb_notif);
-
- pxa2xx_mfp_config(ARRAY_AND_SIZE(am200_pin_config));
-
- /* request our platform independent driver */
- request_module("metronomefb");
-
- am200_device = platform_device_alloc("metronomefb", -1);
- if (!am200_device)
- return -ENOMEM;
-
- /* the am200_board that will be seen by metronomefb is a copy */
- platform_device_add_data(am200_device, &am200_board,
- sizeof(am200_board));
-
- /* this _add binds metronomefb to am200. metronomefb refcounts am200 */
- ret = platform_device_add(am200_device);
-
- if (ret) {
- platform_device_put(am200_device);
- fb_unregister_client(&am200_fb_notif);
- return ret;
- }
-
- am200_presetup_fb();
-
- return 0;
-}
-
-module_param(panel_type, uint, 0);
-MODULE_PARM_DESC(panel_type, "Select the panel type: 6, 8, 97");
-
-MODULE_DESCRIPTION("board driver for am200 metronome epd kit");
-MODULE_AUTHOR("Jaya Kumar");
-MODULE_LICENSE("GPL");
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