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openwrt-xburst/target/linux/xburst/patches-2.6.34/440-metronome.patch

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From c62dfb5d44444dd3add45e10c8950140dcb9f421 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] metronome patches
---
drivers/video/metronomefb.c | 788 +++++++++++++++++++++++++++++++++++++------
include/video/metronomefb.h | 33 ++-
2 files changed, 710 insertions(+), 111 deletions(-)
diff --git a/drivers/video/metronomefb.c b/drivers/video/metronomefb.c
index 9b3d6e4..719149e 100644
--- 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, int length)
}
/* 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 *mem, size_t size, int m, int t,
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 *mem, size_t size, int m, int t,
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 *mem, size_t size, int m, int t,
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 *mem, size_t size, int m, int t,
}
/* 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 *mem, size_t size, int m, int t,
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 *mem, size_t size, int m, int t,
}
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 metronomefb_par *par)
/* 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 metronomefb_par *par)
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_cmd(struct metronomefb_par *par)
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_cmd(struct metronomefb_par *par)
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(struct metronomefb_par *par)
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(struct metronomefb_par *par)
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;
+ }
+
+ memset(fxbuckets, 0, fw_buf * sizeof(*fxbuckets));
+ memset(fybuckets, 0, fh * sizeof(*fybuckets));
- fbsize = par->info->fix.smem_len;
- /* copy from vm to metromem */
- memcpy(par->metromem_img, buf, fbsize);
+ 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);
+ 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 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;
+ }
- /* 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);
+ for (max_y = fh - 1; max_y >= 0; --max_y) {
+ if(fybuckets[max_y])
+ break;
}
- return csum;
+
+ 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 fb_info *info,
{
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 fb_info *info,
{
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 fb_info *info,
{
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 fb_info *info, const char __user *buf,
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(struct platform_device *dev)
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(struct platform_device *dev)
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(struct platform_device *dev)
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(struct platform_device *dev)
/* 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(struct platform_device *dev)
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(struct platform_device *dev)
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);
diff --git a/include/video/metronomefb.h b/include/video/metronomefb.h
index 9863f4b..f505348 100644
--- 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
--
1.5.6.5