aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorJaya Kumar <jayakumar.lkml@gmail.com>2009-01-01 17:49:19 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-02-10 11:27:59 +0000
commit0d4ff4df341208b1b75e01feca27301c0dcbf490 (patch)
tree53cbfa3058c15e04ec1c7758ac4343cc06f06ed0
parentb4e411294a193e18c41912bc3df03f5b9cd7c823 (diff)
downloadmrst-s0i3-test-0d4ff4df341208b1b75e01feca27301c0dcbf490.tar.gz
mrst-s0i3-test-0d4ff4df341208b1b75e01feca27301c0dcbf490.tar.xz
mrst-s0i3-test-0d4ff4df341208b1b75e01feca27301c0dcbf490.zip
[ARM] 5353/1: fbdev: add E-Ink Broadsheet controller support v3
This patch adds support for the E-Ink Broadsheet display controller. Cc: Eric Miao <eric.miao@marvell.com> Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--drivers/video/Kconfig14
-rw-r--r--drivers/video/Makefile1
-rw-r--r--drivers/video/broadsheetfb.c568
-rw-r--r--include/video/broadsheetfb.h59
4 files changed, 642 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index f0267706cb4..5aa099bc769 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2135,6 +2135,20 @@ config FB_MX3
far only synchronous displays are supported. If you plan to use
an LCD display with your i.MX31 system, say Y here.
+config FB_BROADSHEET
+ tristate "E-Ink Broadsheet/Epson S1D13521 controller support"
+ depends on FB
+ select FB_SYS_FILLRECT
+ select FB_SYS_COPYAREA
+ select FB_SYS_IMAGEBLIT
+ select FB_SYS_FOPS
+ select FB_DEFERRED_IO
+ help
+ This driver implements support for the E-Ink Broadsheet
+ controller. The release name for this device was Epson S1D13521
+ and could also have been called by other names when coupled with
+ a bridge adapter.
+
source "drivers/video/omap/Kconfig"
source "drivers/video/backlight/Kconfig"
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 2a998ca6181..edd5a85c1eb 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -106,6 +106,7 @@ obj-$(CONFIG_FB_PMAG_BA) += pmag-ba-fb.o
obj-$(CONFIG_FB_PMAGB_B) += pmagb-b-fb.o
obj-$(CONFIG_FB_MAXINE) += maxinefb.o
obj-$(CONFIG_FB_METRONOME) += metronomefb.o
+obj-$(CONFIG_FB_BROADSHEET) += broadsheetfb.o
obj-$(CONFIG_FB_S1D13XXX) += s1d13xxxfb.o
obj-$(CONFIG_FB_SH7760) += sh7760fb.o
obj-$(CONFIG_FB_IMX) += imxfb.o
diff --git a/drivers/video/broadsheetfb.c b/drivers/video/broadsheetfb.c
new file mode 100644
index 00000000000..509cb92e873
--- /dev/null
+++ b/drivers/video/broadsheetfb.c
@@ -0,0 +1,568 @@
+/*
+ * broadsheetfb.c -- FB driver for E-Ink Broadsheet controller
+ *
+ * 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 driver is written to be used with the Broadsheet display controller.
+ *
+ * It is intended to be architecture independent. A board specific driver
+ * must be used to perform all the physical IO interactions.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/list.h>
+#include <linux/uaccess.h>
+
+#include <video/broadsheetfb.h>
+
+/* Display specific information */
+#define DPY_W 800
+#define DPY_H 600
+
+static struct fb_fix_screeninfo broadsheetfb_fix __devinitdata = {
+ .id = "broadsheetfb",
+ .type = FB_TYPE_PACKED_PIXELS,
+ .visual = FB_VISUAL_STATIC_PSEUDOCOLOR,
+ .xpanstep = 0,
+ .ypanstep = 0,
+ .ywrapstep = 0,
+ .line_length = DPY_W,
+ .accel = FB_ACCEL_NONE,
+};
+
+static struct fb_var_screeninfo broadsheetfb_var __devinitdata = {
+ .xres = DPY_W,
+ .yres = DPY_H,
+ .xres_virtual = DPY_W,
+ .yres_virtual = DPY_H,
+ .bits_per_pixel = 8,
+ .grayscale = 1,
+ .red = { 0, 4, 0 },
+ .green = { 0, 4, 0 },
+ .blue = { 0, 4, 0 },
+ .transp = { 0, 0, 0 },
+};
+
+/* main broadsheetfb functions */
+static void broadsheet_issue_data(struct broadsheetfb_par *par, u16 data)
+{
+ par->board->set_ctl(par, BS_WR, 0);
+ par->board->set_hdb(par, data);
+ par->board->set_ctl(par, BS_WR, 1);
+}
+
+static void broadsheet_issue_cmd(struct broadsheetfb_par *par, u16 data)
+{
+ par->board->set_ctl(par, BS_DC, 0);
+ broadsheet_issue_data(par, data);
+}
+
+static void broadsheet_send_command(struct broadsheetfb_par *par, u16 data)
+{
+ par->board->wait_for_rdy(par);
+
+ par->board->set_ctl(par, BS_CS, 0);
+ broadsheet_issue_cmd(par, data);
+ par->board->set_ctl(par, BS_DC, 1);
+ par->board->set_ctl(par, BS_CS, 1);
+}
+
+static void broadsheet_send_cmdargs(struct broadsheetfb_par *par, u16 cmd,
+ int argc, u16 *argv)
+{
+ int i;
+
+ par->board->wait_for_rdy(par);
+
+ par->board->set_ctl(par, BS_CS, 0);
+ broadsheet_issue_cmd(par, cmd);
+ par->board->set_ctl(par, BS_DC, 1);
+
+ for (i = 0; i < argc; i++)
+ broadsheet_issue_data(par, argv[i]);
+ par->board->set_ctl(par, BS_CS, 1);
+}
+
+static void broadsheet_burst_write(struct broadsheetfb_par *par, int size,
+ u16 *data)
+{
+ int i;
+ u16 tmp;
+
+ par->board->set_ctl(par, BS_CS, 0);
+ par->board->set_ctl(par, BS_DC, 1);
+
+ for (i = 0; i < size; i++) {
+ par->board->set_ctl(par, BS_WR, 0);
+ tmp = (data[i] & 0x0F) << 4;
+ tmp |= (data[i] & 0x0F00) << 4;
+ par->board->set_hdb(par, tmp);
+ par->board->set_ctl(par, BS_WR, 1);
+ }
+
+ par->board->set_ctl(par, BS_CS, 1);
+}
+
+static u16 broadsheet_get_data(struct broadsheetfb_par *par)
+{
+ u16 res;
+ /* wait for ready to go hi. (lo is busy) */
+ par->board->wait_for_rdy(par);
+
+ /* cs lo, dc lo for cmd, we lo for each data, db as usual */
+ par->board->set_ctl(par, BS_DC, 1);
+ par->board->set_ctl(par, BS_CS, 0);
+ par->board->set_ctl(par, BS_WR, 0);
+
+ res = par->board->get_hdb(par);
+
+ /* strobe wr */
+ par->board->set_ctl(par, BS_WR, 1);
+ par->board->set_ctl(par, BS_CS, 1);
+
+ return res;
+}
+
+static void broadsheet_write_reg(struct broadsheetfb_par *par, u16 reg,
+ u16 data)
+{
+ /* wait for ready to go hi. (lo is busy) */
+ par->board->wait_for_rdy(par);
+
+ /* cs lo, dc lo for cmd, we lo for each data, db as usual */
+ par->board->set_ctl(par, BS_CS, 0);
+
+ broadsheet_issue_cmd(par, BS_CMD_WR_REG);
+
+ par->board->set_ctl(par, BS_DC, 1);
+
+ broadsheet_issue_data(par, reg);
+ broadsheet_issue_data(par, data);
+
+ par->board->set_ctl(par, BS_CS, 1);
+}
+
+static u16 broadsheet_read_reg(struct broadsheetfb_par *par, u16 reg)
+{
+ broadsheet_send_command(par, reg);
+ msleep(100);
+ return broadsheet_get_data(par);
+}
+
+static void __devinit broadsheet_init_display(struct broadsheetfb_par *par)
+{
+ u16 args[5];
+
+ args[0] = DPY_W;
+ args[1] = DPY_H;
+ args[2] = (100 | (1 << 8) | (1 << 9)); /* sdcfg */
+ args[3] = 2; /* gdrv cfg */
+ args[4] = (4 | (1 << 7)); /* lut index format */
+ broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_CFG, 5, args);
+
+ /* did the controller really set it? */
+ broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_CFG, 5, args);
+
+ args[0] = 4; /* fsync len */
+ args[1] = (10 << 8) | 4; /* fend/fbegin len */
+ args[2] = 10; /* line sync len */
+ args[3] = (100 << 8) | 4; /* line end/begin len */
+ args[4] = 6; /* pixel clock cfg */
+ broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_TMG, 5, args);
+
+ /* setup waveform */
+ args[0] = 0x886;
+ args[1] = 0;
+ broadsheet_send_cmdargs(par, BS_CMD_RD_WFM_INFO, 2, args);
+
+ broadsheet_send_command(par, BS_CMD_UPD_GDRV_CLR);
+
+ broadsheet_send_command(par, BS_CMD_WAIT_DSPE_TRG);
+
+ broadsheet_write_reg(par, 0x330, 0x84);
+
+ broadsheet_send_command(par, BS_CMD_WAIT_DSPE_TRG);
+
+ args[0] = (0x3 << 4);
+ broadsheet_send_cmdargs(par, BS_CMD_LD_IMG, 1, args);
+
+ args[0] = 0x154;
+ broadsheet_send_cmdargs(par, BS_CMD_WR_REG, 1, args);
+
+ broadsheet_burst_write(par, DPY_W*DPY_H/2,
+ (u16 *) par->info->screen_base);
+
+ broadsheet_send_command(par, BS_CMD_LD_IMG_END);
+
+ args[0] = 0x4300;
+ broadsheet_send_cmdargs(par, BS_CMD_UPD_FULL, 1, args);
+
+ broadsheet_send_command(par, BS_CMD_WAIT_DSPE_TRG);
+
+ broadsheet_send_command(par, BS_CMD_WAIT_DSPE_FREND);
+
+ par->board->wait_for_rdy(par);
+}
+
+static void __devinit broadsheet_init(struct broadsheetfb_par *par)
+{
+ broadsheet_send_command(par, BS_CMD_INIT_SYS_RUN);
+ /* the controller needs a second */
+ msleep(1000);
+ broadsheet_init_display(par);
+}
+
+static void broadsheetfb_dpy_update_pages(struct broadsheetfb_par *par,
+ u16 y1, u16 y2)
+{
+ u16 args[5];
+ unsigned char *buf = (unsigned char *)par->info->screen_base;
+
+ /* y1 must be a multiple of 4 so drop the lower bits */
+ y1 &= 0xFFFC;
+ /* y2 must be a multiple of 4 , but - 1 so up the lower bits */
+ y2 |= 0x0003;
+
+ args[0] = 0x3 << 4;
+ args[1] = 0;
+ args[2] = y1;
+ args[3] = cpu_to_le16(par->info->var.xres);
+ args[4] = y2;
+ broadsheet_send_cmdargs(par, BS_CMD_LD_IMG_AREA, 5, args);
+
+ args[0] = 0x154;
+ broadsheet_send_cmdargs(par, BS_CMD_WR_REG, 1, args);
+
+ buf += y1 * par->info->var.xres;
+ broadsheet_burst_write(par, ((1 + y2 - y1) * par->info->var.xres)/2,
+ (u16 *) buf);
+
+ broadsheet_send_command(par, BS_CMD_LD_IMG_END);
+
+ args[0] = 0x4300;
+ broadsheet_send_cmdargs(par, BS_CMD_UPD_FULL, 1, args);
+
+ broadsheet_send_command(par, BS_CMD_WAIT_DSPE_TRG);
+
+ broadsheet_send_command(par, BS_CMD_WAIT_DSPE_FREND);
+
+ par->board->wait_for_rdy(par);
+
+}
+
+static void broadsheetfb_dpy_update(struct broadsheetfb_par *par)
+{
+ u16 args[5];
+
+ args[0] = 0x3 << 4;
+ broadsheet_send_cmdargs(par, BS_CMD_LD_IMG, 1, args);
+
+ args[0] = 0x154;
+ broadsheet_send_cmdargs(par, BS_CMD_WR_REG, 1, args);
+ broadsheet_burst_write(par, DPY_W*DPY_H/2,
+ (u16 *) par->info->screen_base);
+
+ broadsheet_send_command(par, BS_CMD_LD_IMG_END);
+
+ args[0] = 0x4300;
+ broadsheet_send_cmdargs(par, BS_CMD_UPD_FULL, 1, args);
+
+ broadsheet_send_command(par, BS_CMD_WAIT_DSPE_TRG);
+
+ broadsheet_send_command(par, BS_CMD_WAIT_DSPE_FREND);
+
+ par->board->wait_for_rdy(par);
+
+}
+
+/* this is called back from the deferred io workqueue */
+static void broadsheetfb_dpy_deferred_io(struct fb_info *info,
+ struct list_head *pagelist)
+{
+ u16 y1 = 0, h = 0;
+ int prev_index = -1;
+ struct page *cur;
+ struct fb_deferred_io *fbdefio = info->fbdefio;
+ int h_inc;
+ u16 yres = info->var.yres;
+ u16 xres = info->var.xres;
+
+ /* height increment is fixed per page */
+ h_inc = DIV_ROUND_UP(PAGE_SIZE , xres);
+
+ /* walk the written page list and swizzle the data */
+ list_for_each_entry(cur, &fbdefio->pagelist, lru) {
+ if (prev_index < 0) {
+ /* just starting so assign first page */
+ y1 = (cur->index << PAGE_SHIFT) / xres;
+ h = h_inc;
+ } else if ((prev_index + 1) == cur->index) {
+ /* this page is consecutive so increase our height */
+ h += h_inc;
+ } else {
+ /* page not consecutive, issue previous update first */
+ broadsheetfb_dpy_update_pages(info->par, y1, y1 + h);
+ /* start over with our non consecutive page */
+ y1 = (cur->index << PAGE_SHIFT) / xres;
+ h = h_inc;
+ }
+ prev_index = cur->index;
+ }
+
+ /* if we still have any pages to update we do so now */
+ if (h >= yres) {
+ /* its a full screen update, just do it */
+ broadsheetfb_dpy_update(info->par);
+ } else {
+ broadsheetfb_dpy_update_pages(info->par, y1,
+ min((u16) (y1 + h), yres));
+ }
+}
+
+static void broadsheetfb_fillrect(struct fb_info *info,
+ const struct fb_fillrect *rect)
+{
+ struct broadsheetfb_par *par = info->par;
+
+ sys_fillrect(info, rect);
+
+ broadsheetfb_dpy_update(par);
+}
+
+static void broadsheetfb_copyarea(struct fb_info *info,
+ const struct fb_copyarea *area)
+{
+ struct broadsheetfb_par *par = info->par;
+
+ sys_copyarea(info, area);
+
+ broadsheetfb_dpy_update(par);
+}
+
+static void broadsheetfb_imageblit(struct fb_info *info,
+ const struct fb_image *image)
+{
+ struct broadsheetfb_par *par = info->par;
+
+ sys_imageblit(info, image);
+
+ broadsheetfb_dpy_update(par);
+}
+
+/*
+ * this is the slow path from userspace. they can seek and write to
+ * the fb. it's inefficient to do anything less than a full screen draw
+ */
+static ssize_t broadsheetfb_write(struct fb_info *info, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct broadsheetfb_par *par = info->par;
+ unsigned long p = *ppos;
+ void *dst;
+ int err = 0;
+ unsigned long total_size;
+
+ if (info->state != FBINFO_STATE_RUNNING)
+ return -EPERM;
+
+ total_size = info->fix.smem_len;
+
+ if (p > total_size)
+ return -EFBIG;
+
+ if (count > total_size) {
+ err = -EFBIG;
+ count = total_size;
+ }
+
+ if (count + p > total_size) {
+ if (!err)
+ err = -ENOSPC;
+
+ count = total_size - p;
+ }
+
+ dst = (void *)(info->screen_base + p);
+
+ if (copy_from_user(dst, buf, count))
+ err = -EFAULT;
+
+ if (!err)
+ *ppos += count;
+
+ broadsheetfb_dpy_update(par);
+
+ return (err) ? err : count;
+}
+
+static struct fb_ops broadsheetfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_read = fb_sys_read,
+ .fb_write = broadsheetfb_write,
+ .fb_fillrect = broadsheetfb_fillrect,
+ .fb_copyarea = broadsheetfb_copyarea,
+ .fb_imageblit = broadsheetfb_imageblit,
+};
+
+static struct fb_deferred_io broadsheetfb_defio = {
+ .delay = HZ/4,
+ .deferred_io = broadsheetfb_dpy_deferred_io,
+};
+
+static int __devinit broadsheetfb_probe(struct platform_device *dev)
+{
+ struct fb_info *info;
+ struct broadsheet_board *board;
+ int retval = -ENOMEM;
+ int videomemorysize;
+ unsigned char *videomemory;
+ struct broadsheetfb_par *par;
+ int i;
+
+ /* pick up board specific routines */
+ board = dev->dev.platform_data;
+ if (!board)
+ return -EINVAL;
+
+ /* try to count device specific driver, if can't, platform recalls */
+ if (!try_module_get(board->owner))
+ return -ENODEV;
+
+ info = framebuffer_alloc(sizeof(struct broadsheetfb_par), &dev->dev);
+ if (!info)
+ goto err;
+
+ videomemorysize = (DPY_W*DPY_H);
+ videomemory = vmalloc(videomemorysize);
+ if (!videomemory)
+ goto err_fb_rel;
+
+ memset(videomemory, 0, videomemorysize);
+
+ info->screen_base = (char *)videomemory;
+ info->fbops = &broadsheetfb_ops;
+
+ info->var = broadsheetfb_var;
+ info->fix = broadsheetfb_fix;
+ info->fix.smem_len = videomemorysize;
+ par = info->par;
+ par->info = info;
+ par->board = board;
+ par->write_reg = broadsheet_write_reg;
+ par->read_reg = broadsheet_read_reg;
+ init_waitqueue_head(&par->waitq);
+
+ info->flags = FBINFO_FLAG_DEFAULT;
+
+ info->fbdefio = &broadsheetfb_defio;
+ fb_deferred_io_init(info);
+
+ retval = fb_alloc_cmap(&info->cmap, 16, 0);
+ if (retval < 0) {
+ dev_err(&dev->dev, "Failed to allocate colormap\n");
+ goto err_vfree;
+ }
+
+ /* set cmap */
+ for (i = 0; i < 16; i++)
+ info->cmap.red[i] = (((2*i)+1)*(0xFFFF))/32;
+ memcpy(info->cmap.green, info->cmap.red, sizeof(u16)*16);
+ memcpy(info->cmap.blue, info->cmap.red, sizeof(u16)*16);
+
+ retval = par->board->setup_irq(info);
+ if (retval < 0)
+ goto err_cmap;
+
+ /* this inits the dpy */
+ retval = board->init(par);
+ if (retval < 0)
+ goto err_free_irq;
+
+ broadsheet_init(par);
+
+ retval = register_framebuffer(info);
+ if (retval < 0)
+ goto err_free_irq;
+ platform_set_drvdata(dev, info);
+
+ printk(KERN_INFO
+ "fb%d: Broadsheet frame buffer, using %dK of video memory\n",
+ info->node, videomemorysize >> 10);
+
+
+ return 0;
+
+err_free_irq:
+ board->cleanup(par);
+err_cmap:
+ fb_dealloc_cmap(&info->cmap);
+err_vfree:
+ vfree(videomemory);
+err_fb_rel:
+ framebuffer_release(info);
+err:
+ module_put(board->owner);
+ return retval;
+
+}
+
+static int __devexit broadsheetfb_remove(struct platform_device *dev)
+{
+ struct fb_info *info = platform_get_drvdata(dev);
+
+ if (info) {
+ struct broadsheetfb_par *par = info->par;
+ unregister_framebuffer(info);
+ fb_deferred_io_cleanup(info);
+ par->board->cleanup(par);
+ fb_dealloc_cmap(&info->cmap);
+ vfree((void *)info->screen_base);
+ module_put(par->board->owner);
+ framebuffer_release(info);
+ }
+ return 0;
+}
+
+static struct platform_driver broadsheetfb_driver = {
+ .probe = broadsheetfb_probe,
+ .remove = broadsheetfb_remove,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "broadsheetfb",
+ },
+};
+
+static int __init broadsheetfb_init(void)
+{
+ return platform_driver_register(&broadsheetfb_driver);
+}
+
+static void __exit broadsheetfb_exit(void)
+{
+ platform_driver_unregister(&broadsheetfb_driver);
+}
+
+module_init(broadsheetfb_init);
+module_exit(broadsheetfb_exit);
+
+MODULE_DESCRIPTION("fbdev driver for Broadsheet controller");
+MODULE_AUTHOR("Jaya Kumar");
+MODULE_LICENSE("GPL");
diff --git a/include/video/broadsheetfb.h b/include/video/broadsheetfb.h
new file mode 100644
index 00000000000..a758534c027
--- /dev/null
+++ b/include/video/broadsheetfb.h
@@ -0,0 +1,59 @@
+/*
+ * broadsheetfb.h - definitions for the broadsheet framebuffer driver
+ *
+ * Copyright (C) 2008 by 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.
+ *
+ */
+
+#ifndef _LINUX_BROADSHEETFB_H_
+#define _LINUX_BROADSHEETFB_H_
+
+/* Broadsheet command defines */
+#define BS_CMD_INIT_SYS_RUN 0x06
+#define BS_CMD_INIT_DSPE_CFG 0x09
+#define BS_CMD_INIT_DSPE_TMG 0x0A
+#define BS_CMD_INIT_ROTMODE 0x0B
+#define BS_CMD_RD_REG 0x10
+#define BS_CMD_WR_REG 0x11
+#define BS_CMD_LD_IMG 0x20
+#define BS_CMD_LD_IMG_AREA 0x22
+#define BS_CMD_LD_IMG_END 0x23
+#define BS_CMD_WAIT_DSPE_TRG 0x28
+#define BS_CMD_WAIT_DSPE_FREND 0x29
+#define BS_CMD_RD_WFM_INFO 0x30
+#define BS_CMD_UPD_INIT 0x32
+#define BS_CMD_UPD_FULL 0x33
+#define BS_CMD_UPD_GDRV_CLR 0x37
+
+/* Broadsheet pin interface specific defines */
+#define BS_CS 0x01
+#define BS_DC 0x02
+#define BS_WR 0x03
+
+/* struct used by broadsheet. board specific stuff comes from *board */
+struct broadsheetfb_par {
+ struct fb_info *info;
+ struct broadsheet_board *board;
+ void (*write_reg)(struct broadsheetfb_par *, u16 reg, u16 val);
+ u16 (*read_reg)(struct broadsheetfb_par *, u16 reg);
+ wait_queue_head_t waitq;
+};
+
+/* board specific routines */
+struct broadsheet_board {
+ struct module *owner;
+ int (*init)(struct broadsheetfb_par *);
+ int (*wait_for_rdy)(struct broadsheetfb_par *);
+ void (*set_ctl)(struct broadsheetfb_par *, unsigned char, u8);
+ void (*set_hdb)(struct broadsheetfb_par *, u16);
+ u16 (*get_hdb)(struct broadsheetfb_par *);
+ void (*cleanup)(struct broadsheetfb_par *);
+ int (*get_panel_type)(void);
+ int (*setup_irq)(struct fb_info *);
+};
+
+#endif