From 12cb8e47f82cfc3132962382d3a290028548b902 Mon Sep 17 00:00:00 2001
From: lars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Thu, 6 Jan 2011 01:32:17 +0000
Subject: [xburst] Add 2.6.37 support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24914 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../xburst/patches-2.6.37/440-metronome.patch      | 1213 ++++++++++++++++++++
 1 file changed, 1213 insertions(+)
 create mode 100644 target/linux/xburst/patches-2.6.37/440-metronome.patch

(limited to 'target/linux/xburst/patches-2.6.37/440-metronome.patch')

diff --git a/target/linux/xburst/patches-2.6.37/440-metronome.patch b/target/linux/xburst/patches-2.6.37/440-metronome.patch
new file mode 100644
index 000000000..eb6d660cb
--- /dev/null
+++ b/target/linux/xburst/patches-2.6.37/440-metronome.patch
@@ -0,0 +1,1213 @@
+From 057f6f13cff319e9f2fff39736371e95ff5ac47b Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Wed, 12 May 2010 14:24:46 +0200
+Subject: [PATCH 1/5] metronome patches
+
+---
+ drivers/video/metronomefb.c |  788 +++++++++++++++++++++++++++++++++++++------
+ include/video/metronomefb.h |   33 ++-
+ 2 files changed, 710 insertions(+), 111 deletions(-)
+
+--- a/drivers/video/metronomefb.c
++++ b/drivers/video/metronomefb.c
+@@ -18,11 +18,13 @@
+  * is provided as am200epd.c
+  *
+  */
++
+ #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>
+@@ -34,16 +36,25 @@
+ #include <linux/dma-mapping.h>
+ #include <linux/uaccess.h>
+ #include <linux/irq.h>
++#include <linux/ctype.h>
+ 
+ #include <video/metronomefb.h>
+ 
+ #include <asm/unaligned.h>
+ 
+-/* Display specific information */
+-#define DPY_W 832
+-#define DPY_H 622
++/*
++ * 12 is ok to avoid refreshing whole screen while small elements are changed,
++ * while forcing full refresh if largish dialog boxes or menus are
++ * shown/dismissed.
++ */
++#define DEFAULT_MANUAL_REFRESH_THRESHOLD 12
++
++#define WF_MODE_INIT	0 /* Initialization */
++#define WF_MODE_MU	1 /* Monochrome update */
++#define WF_MODE_GU	2 /* Grayscale update */
++#define WF_MODE_GC	3 /* Grayscale clearing */
+ 
+-static int user_wfm_size;
++static int temp = 25;
+ 
+ /* frame differs from image. frame includes non-visible pixels */
+ struct epd_frame {
+@@ -53,7 +64,7 @@ struct epd_frame {
+ 	int wfm_size;
+ };
+ 
+-static struct epd_frame epd_frame_table[] = {
++static const struct epd_frame epd_frame_table[] = {
+ 	{
+ 		.fw = 832,
+ 		.fh = 622,
+@@ -97,24 +108,40 @@ static struct epd_frame epd_frame_table[
+ 		},
+ 		.wfm_size = 46770,
+ 	},
++	{
++		.fw = 800,
++		.fh = 600,
++		.config = {
++			15 /* sdlew */
++			| 2 << 8 /* sdosz */
++			| 0 << 11 /* sdor */
++			| 0 << 12 /* sdces */
++			| 0 << 15, /* sdcer */
++			42 /* gdspl */
++			| 1 << 8 /* gdr1 */
++			| 1 << 9 /* sdshr */
++			| 0 << 15, /* gdspp */
++			18 /* gdspw */
++			| 0 << 15, /* dispc */
++			599 /* vdlc */
++			| 0 << 11 /* dsi */
++			| 0 << 12, /* dsic */
++		},
++		.wfm_size = 46901,
++	},
+ };
+ 
+-static struct fb_fix_screeninfo metronomefb_fix __devinitdata = {
++static const struct fb_fix_screeninfo metronomefb_fix __devinitconst = {
+ 	.id =		"metronomefb",
+ 	.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 metronomefb_var __devinitdata = {
+-	.xres		= DPY_W,
+-	.yres		= DPY_H,
+-	.xres_virtual	= DPY_W,
+-	.yres_virtual	= DPY_H,
++static const struct fb_var_screeninfo metronomefb_var __devinitconst = {
+ 	.bits_per_pixel	= 8,
+ 	.grayscale	= 1,
+ 	.nonstd		= 1,
+@@ -167,7 +194,7 @@ static u16 calc_img_cksum(u16 *start, in
+ }
+ 
+ /* here we decode the incoming waveform file and populate metromem */
+-static int __devinit load_waveform(u8 *mem, size_t size, int m, int t,
++static int load_waveform(u8 *mem, size_t size, int m, int t,
+ 				struct metronomefb_par *par)
+ {
+ 	int tta;
+@@ -181,16 +208,12 @@ static int __devinit load_waveform(u8 *m
+ 	int mem_idx = 0;
+ 	struct waveform_hdr *wfm_hdr;
+ 	u8 *metromem = par->metromem_wfm;
+-	struct device *dev = par->info->dev;
++	struct device *dev = &par->pdev->dev;
++	u8 mc, trc;
++	u16 *p;
++	u16 img_cksum;
+ 
+-	if (user_wfm_size)
+-		epd_frame_table[par->dt].wfm_size = user_wfm_size;
+-
+-	if (size != epd_frame_table[par->dt].wfm_size) {
+-		dev_err(dev, "Error: unexpected size %Zd != %d\n", size,
+-					epd_frame_table[par->dt].wfm_size);
+-		return -EINVAL;
+-	}
++	dev_dbg(dev, "Loading waveforms, mode %d, temperature %d\n", m, t);
+ 
+ 	wfm_hdr = (struct waveform_hdr *) mem;
+ 
+@@ -208,8 +231,9 @@ static int __devinit load_waveform(u8 *m
+ 					wfm_hdr->wfm_cs);
+ 		return -EINVAL;
+ 	}
+-	wfm_hdr->mc += 1;
+-	wfm_hdr->trc += 1;
++	mc = wfm_hdr->mc + 1;
++	trc = wfm_hdr->trc + 1;
++
+ 	for (i = 0; i < 5; i++) {
+ 		if (*(wfm_hdr->stuff2a + i) != 0) {
+ 			dev_err(dev, "Error: unexpected value in padding\n");
+@@ -221,10 +245,10 @@ static int __devinit load_waveform(u8 *m
+ 	the waveform. presumably selecting the right one for the
+ 	desired temperature. it works out the offset of the first
+ 	v that exceeds the specified temperature */
+-	if ((sizeof(*wfm_hdr) + wfm_hdr->trc) > size)
++	if ((sizeof(*wfm_hdr) + trc) > size)
+ 		return -EINVAL;
+ 
+-	for (i = sizeof(*wfm_hdr); i <= sizeof(*wfm_hdr) + wfm_hdr->trc; i++) {
++	for (i = sizeof(*wfm_hdr); i <= sizeof(*wfm_hdr) + trc; i++) {
+ 		if (mem[i] > t) {
+ 			trn = i - sizeof(*wfm_hdr) - 1;
+ 			break;
+@@ -232,7 +256,7 @@ static int __devinit load_waveform(u8 *m
+ 	}
+ 
+ 	/* check temperature range table checksum */
+-	cksum_idx = sizeof(*wfm_hdr) + wfm_hdr->trc + 1;
++	cksum_idx = sizeof(*wfm_hdr) + trc + 1;
+ 	if (cksum_idx > size)
+ 		return -EINVAL;
+ 	cksum = calc_cksum(sizeof(*wfm_hdr), cksum_idx, mem);
+@@ -294,6 +318,7 @@ static int __devinit load_waveform(u8 *m
+ 	cksum_idx = wfm_idx;
+ 	if (cksum_idx > size)
+ 		return -EINVAL;
++	dev_dbg(dev, "mem_idx = %u\n", mem_idx);
+ 	cksum = calc_cksum(owfm_idx, cksum_idx, mem);
+ 	if (cksum != mem[cksum_idx]) {
+ 		dev_err(dev, "Error: bad waveform data cksum"
+@@ -302,16 +327,47 @@ static int __devinit load_waveform(u8 *m
+ 	}
+ 	par->frame_count = (mem_idx/64);
+ 
++	p = (u16 *)par->metromem_wfm;
++	img_cksum = calc_img_cksum(p, 16384 / 2);
++	p[16384 / 2] = __cpu_to_le16(img_cksum);
++
++	par->current_wf_mode = m;
++	par->current_wf_temp = t;
++
+ 	return 0;
+ }
+ 
++static int check_err(struct metronomefb_par *par)
++{
++	int res;
++
++	res = par->board->get_err(par);
++	dev_dbg(&par->pdev->dev, "ERR = %d\n", res);
++	return res;
++}
++
++static inline int wait_for_rdy(struct metronomefb_par *par)
++{
++	int res = 0;
++
++	if (!par->board->get_rdy(par))
++		res = par->board->met_wait_event_intr(par);
++
++	return res;
++}
++
+ static int metronome_display_cmd(struct metronomefb_par *par)
+ {
+ 	int i;
+ 	u16 cs;
+ 	u16 opcode;
+-	static u8 borderval;
++	int res;
+ 
++	res = wait_for_rdy(par);
++	if (res)
++		return res;
++
++	dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
+ 	/* setup display command
+ 	we can't immediately set the opcode since the controller
+ 	will try parse the command before we've set it all up
+@@ -324,8 +380,9 @@ static int metronome_display_cmd(struct
+ 
+ 	/* set the args ( 2 bytes ) for display */
+ 	i = 0;
+-	par->metromem_cmd->args[i] = 	1 << 3 /* border update */
+-					| ((borderval++ % 4) & 0x0F) << 4
++	par->metromem_cmd->args[i] = 	0 << 3 /* border update */
++					| (3 << 4)
++//					| ((borderval++ % 4) & 0x0F) << 4
+ 					| (par->frame_count - 1) << 8;
+ 	cs += par->metromem_cmd->args[i++];
+ 
+@@ -335,21 +392,25 @@ static int metronome_display_cmd(struct
+ 	par->metromem_cmd->csum = cs;
+ 	par->metromem_cmd->opcode = opcode; /* display cmd */
+ 
+-	return par->board->met_wait_event_intr(par);
++	return 0;
++
+ }
+ 
+ static int __devinit metronome_powerup_cmd(struct metronomefb_par *par)
+ {
+ 	int i;
+ 	u16 cs;
++	int res;
+ 
++	dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
+ 	/* setup power up command */
+ 	par->metromem_cmd->opcode = 0x1234; /* pwr up pseudo cmd */
+ 	cs = par->metromem_cmd->opcode;
+ 
+ 	/* set pwr1,2,3 to 1024 */
+ 	for (i = 0; i < 3; i++) {
+-		par->metromem_cmd->args[i] = 1024;
++//		par->metromem_cmd->args[i] = 1024;
++		par->metromem_cmd->args[i] = 100;
+ 		cs += par->metromem_cmd->args[i];
+ 	}
+ 
+@@ -364,7 +425,9 @@ static int __devinit metronome_powerup_c
+ 	msleep(1);
+ 	par->board->set_stdby(par, 1);
+ 
+-	return par->board->met_wait_event(par);
++	res = par->board->met_wait_event(par);
++	dev_dbg(&par->pdev->dev, "%s: EXIT: %d\n", __func__, res);
++	return res;
+ }
+ 
+ static int __devinit metronome_config_cmd(struct metronomefb_par *par)
+@@ -373,8 +436,9 @@ static int __devinit metronome_config_cm
+ 	we can't immediately set the opcode since the controller
+ 	will try parse the command before we've set it all up */
+ 
+-	memcpy(par->metromem_cmd->args, epd_frame_table[par->dt].config,
+-		sizeof(epd_frame_table[par->dt].config));
++	dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
++	memcpy(par->metromem_cmd->args, par->epd_frame->config,
++		sizeof(par->epd_frame->config));
+ 	/* the rest are 0 */
+ 	memset((u8 *) (par->metromem_cmd->args + 4), 0, (32-4)*2);
+ 
+@@ -395,11 +459,12 @@ static int __devinit metronome_init_cmd(
+ 	will try parse the command before we've set it all up
+ 	so we just set cs here and set the opcode at the end */
+ 
++	dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
+ 	cs = 0xCC20;
+ 
+ 	/* set the args ( 2 bytes ) for init */
+ 	i = 0;
+-	par->metromem_cmd->args[i] = 0;
++	par->metromem_cmd->args[i] = 0x0007;
+ 	cs += par->metromem_cmd->args[i++];
+ 
+ 	/* the rest are 0 */
+@@ -411,76 +476,268 @@ static int __devinit metronome_init_cmd(
+ 	return par->board->met_wait_event(par);
+ }
+ 
+-static int __devinit metronome_init_regs(struct metronomefb_par *par)
++static int metronome_bootup(struct metronomefb_par *par)
+ {
+ 	int res;
+ 
+-	res = par->board->setup_io(par);
+-	if (res)
+-		return res;
+-
+ 	res = metronome_powerup_cmd(par);
+-	if (res)
+-		return res;
++	if (res) {
++		dev_err(&par->pdev->dev, "metronomefb: POWERUP cmd failed\n");
++		goto finish;
++	}
+ 
++	check_err(par);
+ 	res = metronome_config_cmd(par);
+-	if (res)
+-		return res;
++	if (res) {
++		dev_err(&par->pdev->dev, "metronomefb: CONFIG cmd failed\n");
++		goto finish;
++	}
++	check_err(par);
+ 
+ 	res = metronome_init_cmd(par);
++	if (res)
++		dev_err(&par->pdev->dev, "metronomefb: INIT cmd failed\n");
++	check_err(par);
++
++finish:
++	return res;
++}
++
++static int __devinit metronome_init_regs(struct metronomefb_par *par)
++{
++	int res;
++
++	if (par->board->power_ctl)
++		par->board->power_ctl(par, METRONOME_POWER_ON);
++
++	res =  metronome_bootup(par);
+ 
+ 	return res;
+ }
+ 
+-static void metronomefb_dpy_update(struct metronomefb_par *par)
++static uint16_t metronomefb_update_img_buffer_rotated(struct metronomefb_par *par)
+ {
+-	int fbsize;
+-	u16 cksum;
+-	unsigned char *buf = (unsigned char __force *)par->info->screen_base;
++	int x, y;
++	int xstep, ystep;
++	int i, j;
++	uint16_t cksum = 0;
++	uint8_t *buf = par->info->screen_base;
++	uint32_t *img = (uint32_t *)(par->metromem_img);
++	int fw = par->epd_frame->fw;
++	int fh = par->epd_frame->fh;
++	int fw_buf = fw / 4;
++	uint32_t *fxbuckets = par->fxbuckets;
++	uint32_t *fybuckets = par->fybuckets;
++	uint32_t diff;
++	uint32_t tmp;
++
++	switch (par->rotation) {
++	case FB_ROTATE_CW:
++		xstep = -fh;
++		ystep = fw * fh + 1;
++		j = (fw - 1) * fh;
++		break;
++	case FB_ROTATE_UD:
++		xstep = -1;
++		ystep = 0;
++		j = fw * fh - 1;
++		break;
++	case FB_ROTATE_CCW:
++		xstep = fh;
++		ystep = -fw * fh - 1;
++		j = fh - 1;
++		break;
++	default:
++		BUG();
++		break;
++	}
+ 
+-	fbsize = par->info->fix.smem_len;
+-	/* copy from vm to metromem */
+-	memcpy(par->metromem_img, buf, fbsize);
++	memset(fxbuckets, 0, fw_buf * sizeof(*fxbuckets));
++	memset(fybuckets, 0, fh * sizeof(*fybuckets));
++
++	i = 0;
++	for (y = 0; y < fh; y++) {
++		for(x = 0; x < fw_buf; x++, i++) {
++			tmp = (buf[j] << 5);
++			j += xstep;
++			tmp |= (buf[j] << 13);
++			j += xstep;
++			tmp |= (buf[j] << 21);
++			j += xstep;
++			tmp |= (buf[j] << 29);
++			j += xstep;
++			tmp &= 0xe0e0e0e0;
++
++			img[i] &= 0xf0f0f0f0;
++			diff = img[i] ^ tmp;
++
++			fxbuckets[x] |= diff;
++			fybuckets[y] |= diff;
++
++			img[i] = (img[i] >> 4) | tmp;
++			cksum += img[i] & 0x0000ffff;
++			cksum += (img[i] >> 16);
+ 
+-	cksum = calc_img_cksum((u16 *) par->metromem_img, fbsize/2);
+-	*((u16 *)(par->metromem_img) + fbsize/2) = cksum;
+-	metronome_display_cmd(par);
++		}
++		j += ystep;
++	}
++
++	return cksum;
+ }
+ 
+-static u16 metronomefb_dpy_update_page(struct metronomefb_par *par, int index)
++static uint16_t metronomefb_update_img_buffer_normal(struct metronomefb_par *par)
+ {
+-	int i;
+-	u16 csum = 0;
+-	u16 *buf = (u16 __force *)(par->info->screen_base + index);
+-	u16 *img = (u16 *)(par->metromem_img + index);
+-
+-	/* swizzle from vm to metromem and recalc cksum at the same time*/
+-	for (i = 0; i < PAGE_SIZE/2; i++) {
+-		*(img + i) = (buf[i] << 5) & 0xE0E0;
+-		csum += *(img + i);
++	int x, y, i;
++	uint16_t cksum = 0;
++	uint32_t *buf = (uint32_t __force *)par->info->screen_base;
++	uint32_t *img = (uint32_t *)(par->metromem_img);
++	uint32_t diff;
++	uint32_t tmp;
++	int fw = par->epd_frame->fw;
++	int fh = par->epd_frame->fh;
++	int fw_buf = fw / sizeof(*buf);
++	uint32_t *fxbuckets = par->fxbuckets;
++	uint32_t *fybuckets = par->fybuckets;
++
++	memset(fxbuckets, 0, fw_buf * sizeof(*fxbuckets));
++	memset(fybuckets, 0, fh * sizeof(*fybuckets));
++
++	i = 0;
++	for (y = 0; y < fh; y++) {
++		for(x = 0; x < fw_buf; x++, i++) {
++			tmp = (buf[i] << 5) & 0xe0e0e0e0;
++			img[i] &= 0xf0f0f0f0;
++			diff = img[i] ^ tmp;
++
++			fxbuckets[x] |= diff;
++			fybuckets[y] |= diff;
++
++			img[i] = (img[i] >> 4) | tmp;
++			cksum += img[i] & 0x0000ffff;
++			cksum += (img[i] >> 16);
++		}
+ 	}
+-	return csum;
++
++	return cksum;
++}
++
++static unsigned int metronomefb_get_change_count(struct metronomefb_par *par)
++{
++	int min_x;
++	int max_x;
++	int min_y;
++	int max_y;
++	int fw = par->epd_frame->fw / 4;
++	int fh = par->epd_frame->fh;
++	unsigned int change_count;
++	uint32_t *fxbuckets = par->fxbuckets;
++	uint32_t *fybuckets = par->fybuckets;
++
++	for (min_x = 0; min_x < fw; ++min_x) {
++		if(fxbuckets[min_x])
++			break;
++	}
++
++	for (max_x = fw - 1; max_x >= 0; --max_x) {
++		if(fxbuckets[max_x])
++			break;
++	}
++
++	for (min_y = 0; min_y < fh; min_y++) {
++		if(fybuckets[min_y])
++			break;
++	}
++
++	for (max_y = fh - 1; max_y >= 0; --max_y) {
++		if(fybuckets[max_y])
++			break;
++	}
++
++	if ((min_x > max_x) || (min_y > max_y))
++		change_count = 0;
++	else
++		change_count = (max_x - min_x + 1) * (max_y - min_y + 1) * 4;
++
++	dev_dbg(&par->pdev->dev, "min_x = %d, max_x = %d, min_y = %d, max_y = %d\n",
++			min_x, max_x, min_y, max_y);
++
++	return change_count;
++}
++
++static void metronomefb_dpy_update(struct metronomefb_par *par, int clear_all)
++{
++	unsigned int fbsize = par->info->fix.smem_len;
++	uint16_t cksum;
++	int m;
++
++	wait_for_rdy(par);
++
++	if (par->rotation == 0)
++		cksum = metronomefb_update_img_buffer_normal(par);
++	else
++		cksum = metronomefb_update_img_buffer_rotated(par);
++
++	*par->metromem_img_csum = __cpu_to_le16(cksum);
++
++	if (clear_all || par->is_first_update ||
++		(par->partial_updates_count == par->partial_autorefresh_interval)) {
++		m = WF_MODE_GC;
++		par->partial_updates_count = 0;
++	} else {
++		int change_count = metronomefb_get_change_count(par);
++		if (change_count < fbsize / 100 * par->manual_refresh_threshold)
++			m = WF_MODE_GU;
++		else
++			m = WF_MODE_GC;
++
++		dev_dbg(&par->pdev->dev, "change_count = %u, treshold = %u%% (%u pixels)\n",
++				change_count, par->manual_refresh_threshold,
++				fbsize / 100 * par->manual_refresh_threshold);
++		++par->partial_updates_count;
++	}
++
++	if (m != par->current_wf_mode)
++		load_waveform((u8 *) par->firmware->data, par->firmware->size,
++				m, par->current_wf_temp, par);
++
++	for (;;) {
++		if (likely(!check_err(par))) {
++			metronome_display_cmd(par);
++			break;
++		}
++
++		par->board->set_stdby(par, 0);
++		dev_warn(&par->pdev->dev, "Resetting Metronome\n");
++		par->board->set_rst(par, 0);
++		mdelay(1);
++		if (par->board->power_ctl)
++			par->board->power_ctl(par, METRONOME_POWER_OFF);
++
++		mdelay(1);
++		load_waveform((u8 *) par->firmware->data, par->firmware->size,
++				WF_MODE_GC, par->current_wf_temp, par);
++
++		if (par->board->power_ctl)
++			par->board->power_ctl(par, METRONOME_POWER_ON);
++		metronome_bootup(par);
++	}
++
++	par->is_first_update = 0;
+ }
+ 
+ /* this is called back from the deferred io workqueue */
+ static void metronomefb_dpy_deferred_io(struct fb_info *info,
+ 				struct list_head *pagelist)
+ {
+-	u16 cksum;
+-	struct page *cur;
+-	struct fb_deferred_io *fbdefio = info->fbdefio;
+ 	struct metronomefb_par *par = info->par;
+ 
+-	/* walk the written page list and swizzle the data */
+-	list_for_each_entry(cur, &fbdefio->pagelist, lru) {
+-		cksum = metronomefb_dpy_update_page(par,
+-					(cur->index << PAGE_SHIFT));
+-		par->metromem_img_csum -= par->csum_table[cur->index];
+-		par->csum_table[cur->index] = cksum;
+-		par->metromem_img_csum += cksum;
+-	}
+-
+-	metronome_display_cmd(par);
++	/* We will update entire display because we need to change
++	 * 'previous image' field in pixels which was changed at
++	 * previous refresh
++	 */
++	mutex_lock(&par->lock);
++	metronomefb_dpy_update(par, 0);
++	mutex_unlock(&par->lock);
+ }
+ 
+ static void metronomefb_fillrect(struct fb_info *info,
+@@ -488,8 +745,10 @@ static void metronomefb_fillrect(struct
+ {
+ 	struct metronomefb_par *par = info->par;
+ 
++	mutex_lock(&par->lock);
+ 	sys_fillrect(info, rect);
+-	metronomefb_dpy_update(par);
++	metronomefb_dpy_update(par, 0);
++	mutex_unlock(&par->lock);
+ }
+ 
+ static void metronomefb_copyarea(struct fb_info *info,
+@@ -497,8 +756,10 @@ static void metronomefb_copyarea(struct
+ {
+ 	struct metronomefb_par *par = info->par;
+ 
++	mutex_lock(&par->lock);
+ 	sys_copyarea(info, area);
+-	metronomefb_dpy_update(par);
++	metronomefb_dpy_update(par, 0);
++	mutex_unlock(&par->lock);
+ }
+ 
+ static void metronomefb_imageblit(struct fb_info *info,
+@@ -506,8 +767,10 @@ static void metronomefb_imageblit(struct
+ {
+ 	struct metronomefb_par *par = info->par;
+ 
++	mutex_lock(&par->lock);
+ 	sys_imageblit(info, image);
+-	metronomefb_dpy_update(par);
++	metronomefb_dpy_update(par, 0);
++	mutex_unlock(&par->lock);
+ }
+ 
+ /*
+@@ -545,30 +808,229 @@ static ssize_t metronomefb_write(struct
+ 
+ 	dst = (void __force *)(info->screen_base + p);
+ 
++	mutex_lock(&par->lock);
++
+ 	if (copy_from_user(dst, buf, count))
+ 		err = -EFAULT;
+ 
+ 	if  (!err)
+ 		*ppos += count;
+ 
+-	metronomefb_dpy_update(par);
++	metronomefb_dpy_update(par, 0);
++	mutex_unlock(&par->lock);
+ 
+ 	return (err) ? err : count;
+ }
+ 
++static int metronome_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
++{
++	struct metronomefb_par *par = info->par;
++
++	var->grayscale = 1;
++
++	switch (par->rotation) {
++	case FB_ROTATE_CW:
++	case FB_ROTATE_CCW:
++		if (par->epd_frame->fw == var->yres && par->epd_frame->fh == var->xres)
++			return 0;
++		break;
++	case FB_ROTATE_UD:
++	default:
++		if (par->epd_frame->fw == var->xres && par->epd_frame->fh == var->yres)
++			return 0;
++		break;
++	}
++
++	return -EINVAL;
++}
++
++static int metronomefb_set_par(struct fb_info *info)
++{
++	struct metronomefb_par *par = info->par;
++
++	par->rotation = (par->board->panel_rotation + info->var.rotate) % 4;
++
++	switch (par->rotation) {
++	case FB_ROTATE_CW:
++	case FB_ROTATE_CCW:
++		info->fix.line_length = par->epd_frame->fh;
++		break;
++	case FB_ROTATE_UD:
++	default:
++		info->fix.line_length = par->epd_frame->fw;
++		break;
++	}
++
++	mutex_lock(&par->lock);
++	metronomefb_dpy_update(info->par, 1);
++	mutex_unlock(&par->lock);
++
++	return 0;
++}
++
+ static struct fb_ops metronomefb_ops = {
+ 	.owner		= THIS_MODULE,
+ 	.fb_write	= metronomefb_write,
+ 	.fb_fillrect	= metronomefb_fillrect,
+ 	.fb_copyarea	= metronomefb_copyarea,
+ 	.fb_imageblit	= metronomefb_imageblit,
++	.fb_check_var	= metronome_check_var,
++	.fb_set_par	= metronomefb_set_par,
+ };
+ 
+ static struct fb_deferred_io metronomefb_defio = {
+-	.delay		= HZ,
++	.delay		= HZ / 4,
+ 	.deferred_io	= metronomefb_dpy_deferred_io,
+ };
+ 
++static ssize_t metronomefb_defio_delay_show(struct device *dev,
++		struct device_attribute *attr, char *buf)
++{
++	struct fb_info *info = dev_get_drvdata(dev);
++
++	sprintf(buf, "%lu\n", info->fbdefio->delay * 1000 / HZ);
++	return strlen(buf) + 1;
++}
++
++static ssize_t metronomefb_defio_delay_store(struct device *dev,
++		struct device_attribute *attr, const char *buf, size_t size)
++{
++	struct fb_info *info = dev_get_drvdata(dev);
++	char *after;
++	unsigned long state = simple_strtoul(buf, &after, 10);
++	size_t count = after - buf;
++	ssize_t ret = -EINVAL;
++
++	if (*after && isspace(*after))
++		count++;
++
++	state = state * HZ / 1000;
++
++	if (!state)
++		state = 1;
++
++	if (count == size) {
++		ret = count;
++		info->fbdefio->delay = state;
++	}
++
++	return ret;
++}
++
++static ssize_t metronomefb_manual_refresh_thr_show(struct device *dev,
++		struct device_attribute *attr, char *buf)
++{
++	struct fb_info *info = dev_get_drvdata(dev);
++	struct metronomefb_par *par = info->par;
++
++	return sprintf(buf, "%u\n", par->manual_refresh_threshold);
++}
++
++static ssize_t metronomefb_manual_refresh_thr_store(struct device *dev,
++		struct device_attribute *attr, const char *buf, size_t size)
++{
++	struct fb_info *info = dev_get_drvdata(dev);
++	struct metronomefb_par *par = info->par;
++	char *after;
++	unsigned long val = simple_strtoul(buf, &after, 10);
++	size_t count = after - buf;
++	ssize_t ret = -EINVAL;
++
++	if (*after && isspace(*after))
++		count++;
++
++	if (val > 100)
++		return -EINVAL;
++
++
++	if (count == size) {
++		ret = count;
++		par->manual_refresh_threshold = val;
++	}
++
++	return ret;
++}
++
++static ssize_t metronomefb_autorefresh_interval_show(struct device *dev,
++		struct device_attribute *attr, char *buf)
++{
++	struct fb_info *info = dev_get_drvdata(dev);
++	struct metronomefb_par *par = info->par;
++
++	return sprintf(buf, "%u\n", par->partial_autorefresh_interval);
++}
++
++static ssize_t metronomefb_autorefresh_interval_store(struct device *dev,
++		struct device_attribute *attr, const char *buf, size_t size)
++{
++	struct fb_info *info = dev_get_drvdata(dev);
++	struct metronomefb_par *par = info->par;
++	char *after;
++	unsigned long val = simple_strtoul(buf, &after, 10);
++	size_t count = after - buf;
++	ssize_t ret = -EINVAL;
++
++	if (*after && isspace(*after))
++		count++;
++
++	if (val > 100)
++		return -EINVAL;
++
++
++	if (count == size) {
++		ret = count;
++		par->partial_autorefresh_interval = val;
++	}
++
++	return ret;
++}
++
++static ssize_t metronomefb_temp_show(struct device *dev,
++		struct device_attribute *attr, char *buf)
++{
++	struct fb_info *info = dev_get_drvdata(dev);
++	struct metronomefb_par *par = info->par;
++
++	return sprintf(buf, "%u\n", par->current_wf_temp);
++}
++
++static ssize_t metronomefb_temp_store(struct device *dev,
++		struct device_attribute *attr, const char *buf, size_t size)
++{
++	struct fb_info *info = dev_get_drvdata(dev);
++	struct metronomefb_par *par = info->par;
++	char *after;
++	unsigned long val = simple_strtoul(buf, &after, 10);
++	size_t count = after - buf;
++	ssize_t ret = -EINVAL;
++
++	if (*after && isspace(*after))
++		count++;
++
++	if (val > 100)
++		return -EINVAL;
++
++
++	if (count == size) {
++		ret = count;
++		if (val != par->current_wf_temp)
++			load_waveform((u8 *) par->firmware->data, par->firmware->size,
++					par->current_wf_mode, val, par);
++	}
++
++	return ret;
++}
++
++DEVICE_ATTR(defio_delay, 0644,
++		metronomefb_defio_delay_show, metronomefb_defio_delay_store);
++DEVICE_ATTR(manual_refresh_threshold, 0644,
++		metronomefb_manual_refresh_thr_show, metronomefb_manual_refresh_thr_store);
++DEVICE_ATTR(temp, 0644,
++		metronomefb_temp_show, metronomefb_temp_store);
++DEVICE_ATTR(autorefresh_interval, 0644,
++		metronomefb_autorefresh_interval_show, metronomefb_autorefresh_interval_store);
++
++
+ static int __devinit metronomefb_probe(struct platform_device *dev)
+ {
+ 	struct fb_info *info;
+@@ -607,6 +1069,9 @@ static int __devinit metronomefb_probe(s
+ 
+ 	panel_type = board->get_panel_type();
+ 	switch (panel_type) {
++	case 5:
++		epd_dt_index = 3;
++		break;
+ 	case 6:
+ 		epd_dt_index = 0;
+ 		break;
+@@ -632,29 +1097,59 @@ static int __devinit metronomefb_probe(s
+ 	if (!videomemory)
+ 		goto err_fb_rel;
+ 
+-	memset(videomemory, 0, videomemorysize);
++	memset(videomemory, 0xff, videomemorysize);
+ 
+ 	info->screen_base = (char __force __iomem *)videomemory;
+ 	info->fbops = &metronomefb_ops;
+ 
+-	metronomefb_fix.line_length = fw;
+-	metronomefb_var.xres = fw;
+-	metronomefb_var.yres = fh;
+-	metronomefb_var.xres_virtual = fw;
+-	metronomefb_var.yres_virtual = fh;
+ 	info->var = metronomefb_var;
+ 	info->fix = metronomefb_fix;
+-	info->fix.smem_len = videomemorysize;
++	switch (board->panel_rotation) {
++	case FB_ROTATE_CW:
++	case FB_ROTATE_CCW:
++		info->var.xres = fh;
++		info->var.yres = fw;
++		info->var.xres_virtual = fh;
++		info->var.yres_virtual = fw;
++		info->fix.line_length = fh;
++		break;
++	case FB_ROTATE_UD:
++	default:
++		info->var.xres = fw;
++		info->var.yres = fh;
++		info->var.xres_virtual = fw;
++		info->var.yres_virtual = fh;
++		info->fix.line_length = fw;
++		break;
++	}
++	info->fix.smem_len = fw * fh; /* Real size of image area */
+ 	par = info->par;
+ 	par->info = info;
+ 	par->board = board;
+-	par->dt = epd_dt_index;
++	par->epd_frame = &epd_frame_table[epd_dt_index];
++	par->pdev = dev;
++
++	par->rotation = board->panel_rotation;
++
++	par->fxbuckets = kmalloc((fw / 4 + 1) * sizeof(*par->fxbuckets), GFP_KERNEL);
++	if (!par->fxbuckets)
++		goto err_vfree;
++
++	par->fybuckets = kmalloc(fh * sizeof(*par->fybuckets), GFP_KERNEL);
++	if (!par->fybuckets)
++		goto err_fxbuckets;
++
+ 	init_waitqueue_head(&par->waitq);
++	par->manual_refresh_threshold = DEFAULT_MANUAL_REFRESH_THRESHOLD;
++	par->partial_autorefresh_interval = 256;
++	par->partial_updates_count = 0;
++	par->is_first_update = 1;
++	mutex_init(&par->lock);
+ 
+ 	/* this table caches per page csum values. */
+ 	par->csum_table = vmalloc(videomemorysize/PAGE_SIZE);
+ 	if (!par->csum_table)
+-		goto err_vfree;
++		goto err_fybuckets;
+ 
+ 	/* the physical framebuffer that we use is setup by
+ 	 * the platform device driver. It will provide us
+@@ -684,13 +1179,19 @@ static int __devinit metronomefb_probe(s
+ 		goto err_csum_table;
+ 	}
+ 
+-	retval = load_waveform((u8 *) fw_entry->data, fw_entry->size, 3, 31,
++	retval = load_waveform((u8 *) fw_entry->data, fw_entry->size, WF_MODE_GC, temp,
+ 				par);
+-	release_firmware(fw_entry);
+ 	if (retval < 0) {
+ 		dev_err(&dev->dev, "Failed processing waveform\n");
+ 		goto err_csum_table;
+ 	}
++	par->firmware = fw_entry;
++
++	retval = board->setup_io(par);
++	if (retval) {
++		dev_err(&dev->dev, "metronomefb: setup_io() failed\n");
++		goto err_csum_table;
++	}
+ 
+ 	if (board->setup_irq(info))
+ 		goto err_csum_table;
+@@ -712,7 +1213,7 @@ static int __devinit metronomefb_probe(s
+ 
+ 	/* set cmap */
+ 	for (i = 0; i < 8; i++)
+-		info->cmap.red[i] = (((2*i)+1)*(0xFFFF))/16;
++		info->cmap.red[i] = ((2 * i + 1)*(0xFFFF))/16;
+ 	memcpy(info->cmap.green, info->cmap.red, sizeof(u16)*8);
+ 	memcpy(info->cmap.blue, info->cmap.red, sizeof(u16)*8);
+ 
+@@ -722,18 +1223,47 @@ static int __devinit metronomefb_probe(s
+ 
+ 	platform_set_drvdata(dev, info);
+ 
+-	dev_dbg(&dev->dev,
++	retval = device_create_file(info->dev, &dev_attr_defio_delay);
++	if (retval)
++		goto err_devattr_defio_delay;
++
++	retval = device_create_file(info->dev, &dev_attr_manual_refresh_threshold);
++	if (retval)
++		goto err_devattr_manual_refresh_thr;
++
++	retval = device_create_file(info->dev, &dev_attr_temp);
++	if (retval)
++		goto err_devattr_temp;
++
++	retval = device_create_file(info->dev, &dev_attr_autorefresh_interval);
++	if (retval)
++		goto err_devattr_autorefresh;
++
++	dev_info(&dev->dev,
+ 		"fb%d: Metronome frame buffer device, using %dK of video"
+ 		" memory\n", info->node, videomemorysize >> 10);
+ 
+ 	return 0;
+ 
++	device_remove_file(info->dev, &dev_attr_autorefresh_interval);
++err_devattr_autorefresh:
++	device_remove_file(info->dev, &dev_attr_temp);
++err_devattr_temp:
++	device_remove_file(info->dev, &dev_attr_manual_refresh_threshold);
++err_devattr_manual_refresh_thr:
++	device_remove_file(info->dev, &dev_attr_defio_delay);
++err_devattr_defio_delay:
++	unregister_framebuffer(info);
+ err_cmap:
+ 	fb_dealloc_cmap(&info->cmap);
+ err_free_irq:
+ 	board->cleanup(par);
+ err_csum_table:
+ 	vfree(par->csum_table);
++err_fybuckets:
++	kfree(par->fybuckets);
++err_fxbuckets:
++	kfree(par->fxbuckets);
+ err_vfree:
+ 	vfree(videomemory);
+ err_fb_rel:
+@@ -750,26 +1280,76 @@ static int __devexit metronomefb_remove(
+ 	if (info) {
+ 		struct metronomefb_par *par = info->par;
+ 
++		par->board->set_stdby(par, 0);
++		mdelay(1);
++		if (par->board->power_ctl)
++			par->board->power_ctl(par, METRONOME_POWER_OFF);
++
++		device_remove_file(info->dev, &dev_attr_autorefresh_interval);
++		device_remove_file(info->dev, &dev_attr_temp);
++		device_remove_file(info->dev, &dev_attr_manual_refresh_threshold);
++		device_remove_file(info->dev, &dev_attr_defio_delay);
+ 		unregister_framebuffer(info);
+ 		fb_deferred_io_cleanup(info);
+ 		fb_dealloc_cmap(&info->cmap);
+ 		par->board->cleanup(par);
+ 		vfree(par->csum_table);
++		kfree(par->fybuckets);
++		kfree(par->fxbuckets);
+ 		vfree((void __force *)info->screen_base);
+ 		module_put(par->board->owner);
++		release_firmware(par->firmware);
+ 		dev_dbg(&dev->dev, "calling release\n");
+ 		framebuffer_release(info);
+ 	}
+ 	return 0;
+ }
+ 
++#ifdef CONFIG_PM
++static int metronomefb_suspend(struct platform_device *pdev, pm_message_t message)
++{
++	struct fb_info *info = platform_get_drvdata(pdev);
++	struct metronomefb_par *par = info->par;
++
++	par->board->set_stdby(par, 0);
++	par->board->set_rst(par, 0);
++	if (par->board->power_ctl)
++		par->board->power_ctl(par, METRONOME_POWER_OFF);
++
++
++	return 0;
++}
++
++static int metronomefb_resume(struct platform_device *pdev)
++{
++	struct fb_info *info = platform_get_drvdata(pdev);
++	struct metronomefb_par *par = info->par;
++
++	if (par->board->power_ctl)
++		par->board->power_ctl(par, METRONOME_POWER_ON);
++
++	mutex_lock(&par->lock);
++	metronome_bootup(par);
++	mutex_unlock(&par->lock);
++
++	return 0;
++}
++
++#else
++#define metronomefb_suspend NULL
++#define metronomefb_resume NULL
++#endif
++
++
+ static struct platform_driver metronomefb_driver = {
+-	.probe	= metronomefb_probe,
+-	.remove = metronomefb_remove,
+-	.driver	= {
+-		.owner	= THIS_MODULE,
+-		.name	= "metronomefb",
+-	},
++	.driver		= {
++			.owner	= THIS_MODULE,
++			.name	= "metronomefb",
++			},
++	.probe		= metronomefb_probe,
++	.remove		= __devexit_p(metronomefb_remove),
++	.suspend	= metronomefb_suspend,
++	.resume		= metronomefb_resume,
+ };
+ 
+ static int __init metronomefb_init(void)
+@@ -782,8 +1362,8 @@ static void __exit metronomefb_exit(void
+ 	platform_driver_unregister(&metronomefb_driver);
+ }
+ 
+-module_param(user_wfm_size, uint, 0);
+-MODULE_PARM_DESC(user_wfm_size, "Set custom waveform size");
++module_param(temp, int, 0);
++MODULE_PARM_DESC(temp, "Set current temperature");
+ 
+ module_init(metronomefb_init);
+ module_exit(metronomefb_exit);
+--- a/include/video/metronomefb.h
++++ b/include/video/metronomefb.h
+@@ -17,7 +17,9 @@ struct metromem_cmd {
+ 	u16 opcode;
+ 	u16 args[((64-2)/2)];
+ 	u16 csum;
+-};
++} __attribute__((packed));
++
++struct epd_frame;
+ 
+ /* struct used by metronome. board specific stuff comes from *board */
+ struct metronomefb_par {
+@@ -27,19 +29,40 @@ struct metronomefb_par {
+ 	u16 *metromem_img_csum;
+ 	u16 *csum_table;
+ 	dma_addr_t metromem_dma;
++	const struct firmware *firmware;
+ 	struct fb_info *info;
+ 	struct metronome_board *board;
++	struct platform_device *pdev;
+ 	wait_queue_head_t waitq;
+ 	u8 frame_count;
+ 	int extra_size;
+-	int dt;
++	int current_wf_mode;
++	int current_wf_temp;
++	unsigned int manual_refresh_threshold;
++	unsigned int partial_autorefresh_interval;
++	const struct epd_frame *epd_frame;
++	u32 *fxbuckets;
++	u32 *fybuckets;
++
++	int rotation;
++
++	unsigned int partial_updates_count;
++	unsigned is_first_update:1;
++
++	struct mutex lock;
+ };
+ 
++#define METRONOME_POWER_OFF	0
++#define METRONOME_POWER_ON	1
++
+ /* board specific routines and data */
+ struct metronome_board {
+ 	struct module *owner; /* the platform device */
++	void (*power_ctl)(struct metronomefb_par *, int);
+ 	void (*set_rst)(struct metronomefb_par *, int);
+ 	void (*set_stdby)(struct metronomefb_par *, int);
++	int (*get_err)(struct metronomefb_par *);
++	int (*get_rdy)(struct metronomefb_par *);
+ 	void (*cleanup)(struct metronomefb_par *);
+ 	int (*met_wait_event)(struct metronomefb_par *);
+ 	int (*met_wait_event_intr)(struct metronomefb_par *);
+@@ -47,11 +70,7 @@ struct metronome_board {
+ 	int (*setup_fb)(struct metronomefb_par *);
+ 	int (*setup_io)(struct metronomefb_par *);
+ 	int (*get_panel_type)(void);
+-	unsigned char *metromem;
+-	int fw;
+-	int fh;
+-	int wfm_size;
+-	struct fb_info *host_fbinfo; /* the host LCD controller's fbi */
++	int panel_rotation;
+ };
+ 
+ #endif
-- 
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