*
*/
-#define DEBUG
-
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <asm/unaligned.h>
-/* Display specific information */
-#define DPY_W 832
-#define DPY_H 622
-
#define WF_MODE_INIT 0 /* Initialization */
#define WF_MODE_MU 1 /* Monochrome update */
#define WF_MODE_GU 2 /* Grayscale update */
int wfm_size;
};
-static struct epd_frame epd_frame_table[] = {
+static const struct epd_frame epd_frame_table[] = {
{
.fw = 832,
.fh = 622,
},
};
-static const 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 const 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,
int i;
u16 cs;
u16 opcode;
- static u8 borderval;
int res;
res = wait_for_rdy(par);
will try parse the command before we've set it all up */
dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
- memcpy(par->metromem_cmd->args, epd_frame_table[par->dt].config,
- sizeof(epd_frame_table[par->dt].config));
+ 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);
return res;
}
-static void metronomefb_dpy_update(struct metronomefb_par *par, int clear_all)
+static uint16_t metronomefb_update_img_buffer_rotated(struct metronomefb_par *par)
{
int x, y;
- int i;
- u16 cksum = 0;
- u32 *buf = (u32 __force *)par->info->screen_base;
- u32 *img = (u32 *)(par->metromem_img);
- u32 diff;
- u32 tmp;
- unsigned int fbsize = par->info->fix.smem_len;
- int fx = par->info->fix.line_length;
- int fy = fbsize / fx;
- int fx_buf = fx / sizeof(*buf);
- int m;
- static int is_first_update = 1;
- static int partial_updates_count = 0;
- u32 *fxbuckets = par->fxbuckets;
- u32 *fybuckets = par->fybuckets;
+ 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->info->var.rotate) {
+ 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;
+ }
- wait_for_rdy(par);
+ 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++) {
+ if (j < 0 || j >= fw * fh) {
+ printk("moo: %d %d %d %d %d\n", j, x, y, fw_buf, fh);
+ return 0;
+ }
+ 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);
- memset(fxbuckets, 0, fx_buf * sizeof(*fxbuckets));
- memset(fybuckets, 0, fy * sizeof(*fybuckets));
+ }
+ j += ystep;
+ }
+
+ return cksum;
+}
+
+static uint16_t metronomefb_update_img_buffer_normal(struct metronomefb_par *par)
+{
+ 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 < fy; y++) {
- for(x = 0; x < fx_buf; x++, i++) {
- tmp = (buf[i] << 5) & 0xE0E0E0E0;
- img[i] &= 0xF0F0F0F0;
+ 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;
}
}
- *((u16 *)(par->metromem_img) + fbsize/2) = cksum;
+ return cksum;
+}
- if (clear_all || is_first_update ||
- (partial_updates_count == par->partial_autorefresh_interval)) {
- m = WF_MODE_GC;
- partial_updates_count = 0;
- } else {
- int min_x = fx_buf;
- int max_x = 0;
- int min_y = fy;
- int max_y = 0;
- int change_count;
-
- for (x = 0; x < fx_buf; x++)
- if(fxbuckets[x]) {
- min_x = x;
- break;
- }
+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 (x = fx_buf - 1; x >= 0; x--)
- if(fxbuckets[x]) {
- max_x = x;
- break;
- }
+ for (max_x = fw - 1; max_x >= 0; --max_x) {
+ if(fxbuckets[max_x])
+ break;
+ }
- for (y = 0; y < fy; y++)
- if(fybuckets[y]) {
- min_y = y;
- break;
- }
+ for (min_y = 0; min_y < fh; min_y++) {
+ if(fybuckets[min_y])
+ break;
+ }
- for (y = fy - 1; y >= 0; y--)
- if(fybuckets[y]) {
- max_y = 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) * sizeof(*buf);
+ 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->info->var.rotate == 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, "min_x = %d, max_x = %d, min_y = %d, max_y = %d\n",
- min_x, max_x, min_y, max_y);
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);
-
- partial_updates_count++;
+ ++par->partial_updates_count;
}
- if (m != par->current_wf_mode) {
+ 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;
- }
+again:
+ metronome_display_cmd(par);
+ wait_for_rdy(par);
+ if (unlikely(check_err(par))) {
par->board->set_stdby(par, 0);
printk("Resetting Metronome\n");
par->board->set_rst(par, 0);
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);
+
+ goto again;
}
- is_first_update = 0;
+ par->is_first_update = 0;
}
/* this is called back from the deferred io workqueue */
return (err) ? err : count;
}
+static int metronome_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ struct metronomefb_par *par = info->par;
+
+ if (par->epd_frame->fw == var->xres && par->epd_frame->fh == var->yres)
+ return 0;
+
+ return -EINVAL;
+}
+
+static int metronomefb_set_par(struct fb_info *info)
+{
+ struct metronomefb_par *par = info->par;
+
+ switch (info->var.rotate) {
+ case FB_ROTATE_CW:
+ case FB_ROTATE_CCW:
+ info->fix.line_length = info->var.yres;
+ break;
+ case FB_ROTATE_UD:
+ default:
+ info->fix.line_length = info->var.xres;
+ 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 = {
info->var.yres = fh;
info->var.xres_virtual = fw;
info->var.yres_virtual = fh;
-
info->fix = metronomefb_fix;
- info->fix.smem_len = fw * fh; /* Real size of image area */
info->fix.line_length = fw;
-
+ 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->fxbuckets = kmalloc((fw / 4 + 1) * sizeof(*par->fxbuckets), GFP_KERNEL);
init_waitqueue_head(&par->waitq);
par->manual_refresh_threshold = 60;
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. */
goto err_csum_table;
}
- info->fix.smem_start = 0;
+ info->fix.smem_start = par->metromem_dma;
/* load the waveform in. assume mode 3, temp 31 for now
a) request the waveform file from userspace
if (par->board->power_ctl)
par->board->power_ctl(par, METRONOME_POWER_OFF);
+
return 0;
}
projects / openwrt.git / commitdiff