aboutsummaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/Kconfig26
-rw-r--r--drivers/video/Makefile3
-rw-r--r--drivers/video/fbmon.c88
-rw-r--r--drivers/video/modedb.c47
-rw-r--r--drivers/video/sh_mobile_hdmi.c219
-rw-r--r--drivers/video/sh_mobile_lcdcfb.c26
-rw-r--r--drivers/video/via/via-core.c96
-rw-r--r--drivers/video/via/via-gpio.c29
-rw-r--r--drivers/video/via/viafbdev.c34
-rw-r--r--drivers/video/via/viafbdev.h2
-rw-r--r--drivers/video/vt8500lcdfb.c447
-rw-r--r--drivers/video/vt8500lcdfb.h34
-rw-r--r--drivers/video/wm8505fb.c422
-rw-r--r--drivers/video/wm8505fb_regs.h76
-rw-r--r--drivers/video/wmt_ge_rops.c192
-rw-r--r--drivers/video/wmt_ge_rops.h5
16 files changed, 1636 insertions, 110 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 27c1fb4b1e0..954f6e9d8d5 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -186,6 +186,14 @@ config FB_SYS_FOPS
depends on FB
default n
+config FB_WMT_GE_ROPS
+ tristate
+ depends on FB
+ default n
+ ---help---
+ Include functions for accelerated rectangle filling and area
+ copying using WonderMedia Graphics Engine operations.
+
config FB_DEFERRED_IO
bool
depends on FB
@@ -1722,6 +1730,24 @@ config FB_AU1200
various panels and CRTs by passing in kernel cmd line option
au1200fb:panel=<name>.
+config FB_VT8500
+ bool "VT8500 LCD Driver"
+ depends on (FB = y) && ARM && ARCH_VT8500 && VTWM_VERSION_VT8500
+ select FB_WMT_GE_ROPS
+ select FB_SYS_IMAGEBLIT
+ help
+ This is the framebuffer driver for VIA VT8500 integrated LCD
+ controller.
+
+config FB_WM8505
+ bool "WM8505 frame buffer support"
+ depends on (FB = y) && ARM && ARCH_VT8500 && VTWM_VERSION_WM8505
+ select FB_WMT_GE_ROPS
+ select FB_SYS_IMAGEBLIT
+ help
+ This is the framebuffer driver for WonderMedia WM8505
+ integrated LCD controller.
+
source "drivers/video/geode/Kconfig"
config FB_HIT
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 485e8ed1318..8d916dcb379 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -26,6 +26,7 @@ obj-$(CONFIG_FB_SVGALIB) += svgalib.o
obj-$(CONFIG_FB_MACMODES) += macmodes.o
obj-$(CONFIG_FB_DDC) += fb_ddc.o
obj-$(CONFIG_FB_DEFERRED_IO) += fb_defio.o
+obj-$(CONFIG_FB_WMT_GE_ROPS) += wmt_ge_rops.o
# Hardware specific drivers go first
obj-$(CONFIG_FB_AMIGA) += amifb.o c2p_planar.o
@@ -104,6 +105,8 @@ obj-$(CONFIG_FB_W100) += w100fb.o
obj-$(CONFIG_FB_TMIO) += tmiofb.o
obj-$(CONFIG_FB_AU1100) += au1100fb.o
obj-$(CONFIG_FB_AU1200) += au1200fb.o
+obj-$(CONFIG_FB_VT8500) += vt8500lcdfb.o
+obj-$(CONFIG_FB_WM8505) += wm8505fb.o
obj-$(CONFIG_FB_PMAG_AA) += pmag-aa-fb.o
obj-$(CONFIG_FB_PMAG_BA) += pmag-ba-fb.o
obj-$(CONFIG_FB_PMAGB_B) += pmagb-b-fb.o
diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c
index 563a98b88e9..4f57485f8c5 100644
--- a/drivers/video/fbmon.c
+++ b/drivers/video/fbmon.c
@@ -973,6 +973,90 @@ void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs)
DPRINTK("========================================\n");
}
+/**
+ * fb_edid_add_monspecs() - add monitor video modes from E-EDID data
+ * @edid: 128 byte array with an E-EDID block
+ * @spacs: monitor specs to be extended
+ */
+void fb_edid_add_monspecs(unsigned char *edid, struct fb_monspecs *specs)
+{
+ unsigned char *block;
+ struct fb_videomode *m;
+ int num = 0, i;
+ u8 svd[64], edt[(128 - 4) / DETAILED_TIMING_DESCRIPTION_SIZE];
+ u8 pos = 4, svd_n = 0;
+
+ if (!edid)
+ return;
+
+ if (!edid_checksum(edid))
+ return;
+
+ if (edid[0] != 0x2 ||
+ edid[2] < 4 || edid[2] > 128 - DETAILED_TIMING_DESCRIPTION_SIZE)
+ return;
+
+ DPRINTK(" Short Video Descriptors\n");
+
+ while (pos < edid[2]) {
+ u8 len = edid[pos] & 0x1f, type = (edid[pos] >> 5) & 7;
+ pr_debug("Data block %u of %u bytes\n", type, len);
+ if (type == 2)
+ for (i = pos; i < pos + len; i++) {
+ u8 idx = edid[pos + i] & 0x7f;
+ svd[svd_n++] = idx;
+ pr_debug("N%sative mode #%d\n",
+ edid[pos + i] & 0x80 ? "" : "on-n", idx);
+ }
+ pos += len + 1;
+ }
+
+ block = edid + edid[2];
+
+ DPRINTK(" Extended Detailed Timings\n");
+
+ for (i = 0; i < (128 - edid[2]) / DETAILED_TIMING_DESCRIPTION_SIZE;
+ i++, block += DETAILED_TIMING_DESCRIPTION_SIZE)
+ if (PIXEL_CLOCK)
+ edt[num++] = block - edid;
+
+ /* Yikes, EDID data is totally useless */
+ if (!(num + svd_n))
+ return;
+
+ m = kzalloc((specs->modedb_len + num + svd_n) *
+ sizeof(struct fb_videomode), GFP_KERNEL);
+
+ if (!m)
+ return;
+
+ memcpy(m, specs->modedb, specs->modedb_len * sizeof(struct fb_videomode));
+
+ for (i = specs->modedb_len; i < specs->modedb_len + num; i++) {
+ get_detailed_timing(edid + edt[i - specs->modedb_len], &m[i]);
+ if (i == specs->modedb_len)
+ m[i].flag |= FB_MODE_IS_FIRST;
+ pr_debug("Adding %ux%u@%u\n", m[i].xres, m[i].yres, m[i].refresh);
+ }
+
+ for (i = specs->modedb_len + num; i < specs->modedb_len + num + svd_n; i++) {
+ int idx = svd[i - specs->modedb_len - num];
+ if (!idx || idx > 63) {
+ pr_warning("Reserved SVD code %d\n", idx);
+ } else if (idx > ARRAY_SIZE(cea_modes) || !cea_modes[idx].xres) {
+ pr_warning("Unimplemented SVD code %d\n", idx);
+ } else {
+ memcpy(&m[i], cea_modes + idx, sizeof(m[i]));
+ pr_debug("Adding SVD #%d: %ux%u@%u\n", idx,
+ m[i].xres, m[i].yres, m[i].refresh);
+ }
+ }
+
+ kfree(specs->modedb);
+ specs->modedb = m;
+ specs->modedb_len = specs->modedb_len + num + svd_n;
+}
+
/*
* VESA Generalized Timing Formula (GTF)
*/
@@ -1289,6 +1373,9 @@ void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs)
{
specs = NULL;
}
+void fb_edid_add_monspecs(unsigned char *edid, struct fb_monspecs *specs)
+{
+}
void fb_destroy_modedb(struct fb_videomode *modedb)
{
}
@@ -1396,6 +1483,7 @@ EXPORT_SYMBOL(fb_firmware_edid);
EXPORT_SYMBOL(fb_parse_edid);
EXPORT_SYMBOL(fb_edid_to_monspecs);
+EXPORT_SYMBOL(fb_edid_add_monspecs);
EXPORT_SYMBOL(fb_get_mode);
EXPORT_SYMBOL(fb_validate_mode);
EXPORT_SYMBOL(fb_destroy_modedb);
diff --git a/drivers/video/modedb.c b/drivers/video/modedb.c
index 0a4dbdc1693..c3a182581c1 100644
--- a/drivers/video/modedb.c
+++ b/drivers/video/modedb.c
@@ -278,6 +278,53 @@ static const struct fb_videomode modedb[] = {
};
#ifdef CONFIG_FB_MODE_HELPERS
+const struct fb_videomode cea_modes[64] = {
+ /* #1: 640x480p@59.94/60Hz */
+ [1] = {
+ NULL, 60, 640, 480, 39722, 48, 16, 33, 10, 96, 2, 0, FB_VMODE_NONINTERLACED, 0,
+ },
+ /* #3: 720x480p@59.94/60Hz */
+ [3] = {
+ NULL, 60, 720, 480, 37037, 60, 16, 30, 9, 62, 6, 0, FB_VMODE_NONINTERLACED, 0,
+ },
+ /* #5: 1920x1080i@59.94/60Hz */
+ [5] = {
+ NULL, 60, 1920, 1080, 13763, 148, 88, 15, 2, 44, 5,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_INTERLACED, 0,
+ },
+ /* #7: 720(1440)x480iH@59.94/60Hz */
+ [7] = {
+ NULL, 60, 1440, 480, 18554/*37108*/, 114, 38, 15, 4, 124, 3, 0, FB_VMODE_INTERLACED, 0,
+ },
+ /* #9: 720(1440)x240pH@59.94/60Hz */
+ [9] = {
+ NULL, 60, 1440, 240, 18554, 114, 38, 16, 4, 124, 3, 0, FB_VMODE_NONINTERLACED, 0,
+ },
+ /* #18: 720x576pH@50Hz */
+ [18] = {
+ NULL, 50, 720, 576, 37037, 68, 12, 39, 5, 64, 5, 0, FB_VMODE_NONINTERLACED, 0,
+ },
+ /* #19: 1280x720p@50Hz */
+ [19] = {
+ NULL, 50, 1280, 720, 13468, 220, 440, 20, 5, 40, 5,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, 0,
+ },
+ /* #20: 1920x1080i@50Hz */
+ [20] = {
+ NULL, 50, 1920, 1080, 13480, 148, 528, 15, 5, 528, 5,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_INTERLACED, 0,
+ },
+ /* #32: 1920x1080p@23.98/24Hz */
+ [32] = {
+ NULL, 24, 1920, 1080, 13468, 148, 638, 36, 4, 44, 5,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, 0,
+ },
+ /* #35: (2880)x480p4x@59.94/60Hz */
+ [35] = {
+ NULL, 60, 2880, 480, 9250, 240, 64, 30, 9, 248, 6, 0, FB_VMODE_NONINTERLACED, 0,
+ },
+};
+
const struct fb_videomode vesa_modes[] = {
/* 0 640x350-85 VESA */
{ NULL, 85, 640, 350, 31746, 96, 32, 60, 32, 64, 3,
diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index d7df10315d8..76f9fac9020 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -209,7 +209,11 @@ enum hotplug_state {
struct sh_hdmi {
void __iomem *base;
enum hotplug_state hp_state; /* hot-plug status */
- bool preprogrammed_mode; /* use a pre-programmed VIC or the external mode */
+ u8 preprogrammed_vic; /* use a pre-programmed VIC or
+ the external mode */
+ u8 edid_block_addr;
+ u8 edid_segment_nr;
+ u8 edid_blocks;
struct clk *hdmi_clk;
struct device *dev;
struct fb_info *info;
@@ -342,7 +346,7 @@ static void sh_hdmi_external_video_param(struct sh_hdmi *hdmi)
hdmi_write(hdmi, var->vsync_len, HDMI_EXTERNAL_V_DURATION);
/* Set bit 0 of HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS here for external mode */
- if (!hdmi->preprogrammed_mode)
+ if (!hdmi->preprogrammed_vic)
hdmi_write(hdmi, sync | 1 | (voffset << 4),
HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS);
}
@@ -466,7 +470,18 @@ static void sh_hdmi_audio_config(struct sh_hdmi *hdmi)
*/
static void sh_hdmi_phy_config(struct sh_hdmi *hdmi)
{
- if (hdmi->var.yres > 480) {
+ if (hdmi->var.pixclock < 10000) {
+ /* for 1080p8bit 148MHz */
+ hdmi_write(hdmi, 0x1d, HDMI_SLIPHDMIT_PARAM_SETTINGS_1);
+ hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2);
+ hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_3);
+ hdmi_write(hdmi, 0x4c, HDMI_SLIPHDMIT_PARAM_SETTINGS_5);
+ hdmi_write(hdmi, 0x1e, HDMI_SLIPHDMIT_PARAM_SETTINGS_6);
+ hdmi_write(hdmi, 0x48, HDMI_SLIPHDMIT_PARAM_SETTINGS_7);
+ hdmi_write(hdmi, 0x0e, HDMI_SLIPHDMIT_PARAM_SETTINGS_8);
+ hdmi_write(hdmi, 0x25, HDMI_SLIPHDMIT_PARAM_SETTINGS_9);
+ hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10);
+ } else if (hdmi->var.pixclock < 30000) {
/* 720p, 8bit, 74.25MHz. Might need to be adjusted for other formats */
/*
* [1:0] Speed_A
@@ -565,13 +580,11 @@ static void sh_hdmi_avi_infoframe_setup(struct sh_hdmi *hdmi)
hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB3);
/*
- * VIC = 1280 x 720p: ignored if external config is used
- * Send 2 for 720 x 480p, 16 for 1080p, ignored in external mode
+ * VIC should be ignored if external config is used, so, we could just use 0,
+ * but play safe and use a valid value in any case just in case
*/
- if (hdmi->var.yres == 1080 && hdmi->var.xres == 1920)
- vic = 16;
- else if (hdmi->var.yres == 480 && hdmi->var.xres == 720)
- vic = 2;
+ if (hdmi->preprogrammed_vic)
+ vic = hdmi->preprogrammed_vic;
else
vic = 4;
hdmi_write(hdmi, vic, HDMI_CTRL_PKT_BUF_ACCESS_PB4);
@@ -685,11 +698,21 @@ static void sh_hdmi_configure(struct sh_hdmi *hdmi)
}
static unsigned long sh_hdmi_rate_error(struct sh_hdmi *hdmi,
- const struct fb_videomode *mode)
+ const struct fb_videomode *mode,
+ unsigned long *hdmi_rate, unsigned long *parent_rate)
{
- long target = PICOS2KHZ(mode->pixclock) * 1000,
- rate = clk_round_rate(hdmi->hdmi_clk, target);
- unsigned long rate_error = rate > 0 ? abs(rate - target) : ULONG_MAX;
+ unsigned long target = PICOS2KHZ(mode->pixclock) * 1000, rate_error;
+ struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
+
+ *hdmi_rate = clk_round_rate(hdmi->hdmi_clk, target);
+ if ((long)*hdmi_rate < 0)
+ *hdmi_rate = clk_get_rate(hdmi->hdmi_clk);
+
+ rate_error = (long)*hdmi_rate > 0 ? abs(*hdmi_rate - target) : ULONG_MAX;
+ if (rate_error && pdata->clk_optimize_parent)
+ rate_error = pdata->clk_optimize_parent(target, hdmi_rate, parent_rate);
+ else if (clk_get_parent(hdmi->hdmi_clk))
+ *parent_rate = clk_get_rate(clk_get_parent(hdmi->hdmi_clk));
dev_dbg(hdmi->dev, "%u-%u-%u-%u x %u-%u-%u-%u\n",
mode->left_margin, mode->xres,
@@ -697,14 +720,15 @@ static unsigned long sh_hdmi_rate_error(struct sh_hdmi *hdmi,
mode->upper_margin, mode->yres,
mode->lower_margin, mode->vsync_len);
- dev_dbg(hdmi->dev, "\t@%lu(+/-%lu)Hz, e=%lu / 1000, r=%uHz\n", target,
- rate_error, rate_error ? 10000 / (10 * target / rate_error) : 0,
- mode->refresh);
+ dev_dbg(hdmi->dev, "\t@%lu(+/-%lu)Hz, e=%lu / 1000, r=%uHz, p=%luHz\n", target,
+ rate_error, rate_error ? 10000 / (10 * target / rate_error) : 0,
+ mode->refresh, *parent_rate);
return rate_error;
}
-static int sh_hdmi_read_edid(struct sh_hdmi *hdmi)
+static int sh_hdmi_read_edid(struct sh_hdmi *hdmi, unsigned long *hdmi_rate,
+ unsigned long *parent_rate)
{
struct fb_var_screeninfo tmpvar;
struct fb_var_screeninfo *var = &tmpvar;
@@ -735,7 +759,38 @@ static int sh_hdmi_read_edid(struct sh_hdmi *hdmi)
printk(KERN_CONT "\n");
#endif
- fb_edid_to_monspecs(edid, &hdmi->monspec);
+ if (!hdmi->edid_blocks) {
+ fb_edid_to_monspecs(edid, &hdmi->monspec);
+ hdmi->edid_blocks = edid[126] + 1;
+
+ dev_dbg(hdmi->dev, "%d main modes, %d extension blocks\n",
+ hdmi->monspec.modedb_len, hdmi->edid_blocks - 1);
+ } else {
+ dev_dbg(hdmi->dev, "Extension %u detected, DTD start %u\n",
+ edid[0], edid[2]);
+ fb_edid_add_monspecs(edid, &hdmi->monspec);
+ }
+
+ if (hdmi->edid_blocks > hdmi->edid_segment_nr * 2 +
+ (hdmi->edid_block_addr >> 7) + 1) {
+ /* More blocks to read */
+ if (hdmi->edid_block_addr) {
+ hdmi->edid_block_addr = 0;
+ hdmi->edid_segment_nr++;
+ } else {
+ hdmi->edid_block_addr = 0x80;
+ }
+ /* Set EDID word address */
+ hdmi_write(hdmi, hdmi->edid_block_addr, HDMI_EDID_WORD_ADDRESS);
+ /* Enable EDID interrupt */
+ hdmi_write(hdmi, 0xC6, HDMI_INTERRUPT_MASK_1);
+ /* Set EDID segment pointer - starts reading EDID */
+ hdmi_write(hdmi, hdmi->edid_segment_nr, HDMI_EDID_SEGMENT_POINTER);
+ return -EAGAIN;
+ }
+
+ /* All E-EDID blocks ready */
+ dev_dbg(hdmi->dev, "%d main and extended modes\n", hdmi->monspec.modedb_len);
fb_get_options("sh_mobile_lcdc", &forced);
if (forced && *forced) {
@@ -754,11 +809,14 @@ static int sh_hdmi_read_edid(struct sh_hdmi *hdmi)
for (i = 0, mode = hdmi->monspec.modedb;
f_width && f_height && i < hdmi->monspec.modedb_len && !exact_match;
i++, mode++) {
- unsigned long rate_error = sh_hdmi_rate_error(hdmi, mode);
+ unsigned long rate_error;
/* No interest in unmatching modes */
if (f_width != mode->xres || f_height != mode->yres)
continue;
+
+ rate_error = sh_hdmi_rate_error(hdmi, mode, hdmi_rate, parent_rate);
+
if (f_refresh == mode->refresh || (!f_refresh && !rate_error))
/*
* Exact match if either the refresh rate matches or it
@@ -802,7 +860,7 @@ static int sh_hdmi_read_edid(struct sh_hdmi *hdmi)
if (modelist) {
found = &modelist->mode;
- found_rate_error = sh_hdmi_rate_error(hdmi, found);
+ found_rate_error = sh_hdmi_rate_error(hdmi, found, hdmi_rate, parent_rate);
}
}
@@ -810,16 +868,27 @@ static int sh_hdmi_read_edid(struct sh_hdmi *hdmi)
if (!found)
return -ENXIO;
- dev_info(hdmi->dev, "Using %s mode %ux%u@%uHz (%luHz), clock error %luHz\n",
- modelist ? "default" : "EDID", found->xres, found->yres,
- found->refresh, PICOS2KHZ(found->pixclock) * 1000, found_rate_error);
-
- if ((found->xres == 720 && found->yres == 480) ||
- (found->xres == 1280 && found->yres == 720) ||
- (found->xres == 1920 && found->yres == 1080))
- hdmi->preprogrammed_mode = true;
+ if (found->xres == 640 && found->yres == 480 && found->refresh == 60)
+ hdmi->preprogrammed_vic = 1;
+ else if (found->xres == 720 && found->yres == 480 && found->refresh == 60)
+ hdmi->preprogrammed_vic = 2;
+ else if (found->xres == 720 && found->yres == 576 && found->refresh == 50)
+ hdmi->preprogrammed_vic = 17;
+ else if (found->xres == 1280 && found->yres == 720 && found->refresh == 60)
+ hdmi->preprogrammed_vic = 4;
+ else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 24)
+ hdmi->preprogrammed_vic = 32;
+ else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 50)
+ hdmi->preprogrammed_vic = 31;
+ else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 60)
+ hdmi->preprogrammed_vic = 16;
else
- hdmi->preprogrammed_mode = false;
+ hdmi->preprogrammed_vic = 0;
+
+ dev_dbg(hdmi->dev, "Using %s %s mode %ux%u@%uHz (%luHz), clock error %luHz\n",
+ modelist ? "default" : "EDID", hdmi->preprogrammed_vic ? "VIC" : "external",
+ found->xres, found->yres, found->refresh,
+ PICOS2KHZ(found->pixclock) * 1000, found_rate_error);
fb_videomode_to_var(&hdmi->var, found);
sh_hdmi_external_video_param(hdmi);
@@ -868,32 +937,34 @@ static irqreturn_t sh_hdmi_hotplug(int irq, void *dev_id)
/* Check, if hot plug & MSENS pin status are both high */
if ((msens & 0xC0) == 0xC0) {
/* Display plug in */
+ hdmi->edid_segment_nr = 0;
+ hdmi->edid_block_addr = 0;
+ hdmi->edid_blocks = 0;
hdmi->hp_state = HDMI_HOTPLUG_CONNECTED;
/* Set EDID word address */
hdmi_write(hdmi, 0x00, HDMI_EDID_WORD_ADDRESS);
- /* Set EDID segment pointer */
- hdmi_write(hdmi, 0x00, HDMI_EDID_SEGMENT_POINTER);
/* Enable EDID interrupt */
hdmi_write(hdmi, 0xC6, HDMI_INTERRUPT_MASK_1);
+ /* Set EDID segment pointer - starts reading EDID */
+ hdmi_write(hdmi, 0x00, HDMI_EDID_SEGMENT_POINTER);
} else if (!(status1 & 0x80)) {
/* Display unplug, beware multiple interrupts */
- if (hdmi->hp_state != HDMI_HOTPLUG_DISCONNECTED)
+ if (hdmi->hp_state != HDMI_HOTPLUG_DISCONNECTED) {
+ hdmi->hp_state = HDMI_HOTPLUG_DISCONNECTED;
schedule_delayed_work(&hdmi->edid_work, 0);
-
- hdmi->hp_state = HDMI_HOTPLUG_DISCONNECTED;
+ }
/* display_off will switch back to mode_a */
}
} else if (status1 & 2) {
/* EDID error interrupt: retry */
/* Set EDID word address */
- hdmi_write(hdmi, 0x00, HDMI_EDID_WORD_ADDRESS);
+ hdmi_write(hdmi, hdmi->edid_block_addr, HDMI_EDID_WORD_ADDRESS);
/* Set EDID segment pointer */
- hdmi_write(hdmi, 0x00, HDMI_EDID_SEGMENT_POINTER);
+ hdmi_write(hdmi, hdmi->edid_segment_nr, HDMI_EDID_SEGMENT_POINTER);
} else if (status1 & 4) {
/* Disable EDID interrupt */
hdmi_write(hdmi, 0xC0, HDMI_INTERRUPT_MASK_1);
- hdmi->hp_state = HDMI_HOTPLUG_EDID_DONE;
schedule_delayed_work(&hdmi->edid_work, msecs_to_jiffies(10));
}
@@ -972,39 +1043,37 @@ static bool sh_hdmi_must_reconfigure(struct sh_hdmi *hdmi)
/**
* sh_hdmi_clk_configure() - set HDMI clock frequency and enable the clock
- * @hdmi: driver context
- * @pixclock: pixel clock period in picoseconds
- * return: configured positive rate if successful
- * 0 if couldn't set the rate, but managed to enable the clock
- * negative error, if couldn't enable the clock
+ * @hdmi: driver context
+ * @hdmi_rate: HDMI clock frequency in Hz
+ * @parent_rate: if != 0 - set parent clock rate for optimal precision
+ * return: configured positive rate if successful
+ * 0 if couldn't set the rate, but managed to enable the
+ * clock, negative error, if couldn't enable the clock
*/
-static long sh_hdmi_clk_configure(struct sh_hdmi *hdmi, unsigned long pixclock)
+static long sh_hdmi_clk_configure(struct sh_hdmi *hdmi, unsigned long hdmi_rate,
+ unsigned long parent_rate)
{
- long rate;
int ret;
- rate = PICOS2KHZ(pixclock) * 1000;
- rate = clk_round_rate(hdmi->hdmi_clk, rate);
- if (rate > 0) {
- ret = clk_set_rate(hdmi->hdmi_clk, rate);
+ if (parent_rate && clk_get_parent(hdmi->hdmi_clk)) {
+ ret = clk_set_rate(clk_get_parent(hdmi->hdmi_clk), parent_rate);
if (ret < 0) {
- dev_warn(hdmi->dev, "Cannot set rate %ld: %d\n", rate, ret);
- rate = 0;
+ dev_warn(hdmi->dev, "Cannot set parent rate %ld: %d\n", parent_rate, ret);
+ hdmi_rate = clk_round_rate(hdmi->hdmi_clk, hdmi_rate);
} else {
- dev_dbg(hdmi->dev, "HDMI set frequency %lu\n", rate);
+ dev_dbg(hdmi->dev, "HDMI set parent frequency %lu\n", parent_rate);
}
- } else {
- rate = 0;
- dev_warn(hdmi->dev, "Cannot get suitable rate: %ld\n", rate);
}
- ret = clk_enable(hdmi->hdmi_clk);
+ ret = clk_set_rate(hdmi->hdmi_clk, hdmi_rate);
if (ret < 0) {
- dev_err(hdmi->dev, "Cannot enable clock: %d\n", ret);
- return ret;
+ dev_warn(hdmi->dev, "Cannot set rate %ld: %d\n", hdmi_rate, ret);
+ hdmi_rate = 0;
+ } else {
+ dev_dbg(hdmi->dev, "HDMI set frequency %lu\n", hdmi_rate);
}
- return rate;
+ return hdmi_rate;
}
/* Hotplug interrupt occurred, read EDID */
@@ -1023,17 +1092,20 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
mutex_lock(&hdmi->mutex);
- if (hdmi->hp_state == HDMI_HOTPLUG_EDID_DONE) {
+ if (hdmi->hp_state == HDMI_HOTPLUG_CONNECTED) {
+ unsigned long parent_rate = 0, hdmi_rate;
+
/* A device has been plugged in */
pm_runtime_get_sync(hdmi->dev);
- ret = sh_hdmi_read_edid(hdmi);
+ ret = sh_hdmi_read_edid(hdmi, &hdmi_rate, &parent_rate);
if (ret < 0)
goto out;
+ hdmi->hp_state = HDMI_HOTPLUG_EDID_DONE;
+
/* Reconfigure the clock */
- clk_disable(hdmi->hdmi_clk);
- ret = sh_hdmi_clk_configure(hdmi, hdmi->var.pixclock);
+ ret = sh_hdmi_clk_configure(hdmi, hdmi_rate, parent_rate);
if (ret < 0)
goto out;
@@ -1085,7 +1157,7 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
}
out:
- if (ret < 0)
+ if (ret < 0 && ret != -EAGAIN)
hdmi->hp_state = HDMI_HOTPLUG_DISCONNECTED;
mutex_unlock(&hdmi->mutex);
@@ -1166,13 +1238,22 @@ static int __init sh_hdmi_probe(struct platform_device *pdev)
goto egetclk;
}
- /* Some arbitrary relaxed pixclock just to get things started */
- rate = sh_hdmi_clk_configure(hdmi, 37037);
+ /* An arbitrary relaxed pixclock just to get things started: from standard 480p */
+ rate = clk_round_rate(hdmi->hdmi_clk, PICOS2KHZ(37037));
+ if (rate > 0)
+ rate = sh_hdmi_clk_configure(hdmi, rate, 0);
+
if (rate < 0) {
ret = rate;
goto erate;
}
+ ret = clk_enable(hdmi->hdmi_clk);
+ if (ret < 0) {
+ dev_err(hdmi->dev, "Cannot enable clock: %d\n", ret);
+ goto erate;
+ }
+
dev_dbg(&pdev->dev, "Enabled HDMI clock at %luHz\n", rate);
if (!request_mem_region(res->start, resource_size(res), dev_name(&pdev->dev))) {
@@ -1190,10 +1271,6 @@ static int __init sh_hdmi_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, hdmi);
- /* Product and revision IDs are 0 in sh-mobile version */
- dev_info(&pdev->dev, "Detected HDMI controller 0x%x:0x%x\n",
- hdmi_read(hdmi, HDMI_PRODUCT_ID), hdmi_read(hdmi, HDMI_REVISION_ID));
-
/* Set up LCDC callbacks */
board_cfg = &pdata->lcd_chan->board_cfg;
board_cfg->owner = THIS_MODULE;
@@ -1206,6 +1283,10 @@ static int __init sh_hdmi_probe(struct platform_device *pdev)
pm_runtime_enable(&pdev->dev);
pm_runtime_resume(&pdev->dev);
+ /* Product and revision IDs are 0 in sh-mobile version */
+ dev_info(&pdev->dev, "Detected HDMI controller 0x%x:0x%x\n",
+ hdmi_read(hdmi, HDMI_PRODUCT_ID), hdmi_read(hdmi, HDMI_REVISION_ID));
+
ret = request_irq(irq, sh_hdmi_hotplug, 0,
dev_name(&pdev->dev), hdmi);
if (ret < 0) {
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 9b1364723c6..37419ba2c29 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -54,8 +54,8 @@ static int lcdc_shared_regs[] = {
};
#define NR_SHARED_REGS ARRAY_SIZE(lcdc_shared_regs)
-#define DEFAULT_XRES 1280
-#define DEFAULT_YRES 1024
+#define MAX_XRES 1920
+#define MAX_YRES 1080
static unsigned long lcdc_offs_mainlcd[NR_CH_REGS] = {
[LDDCKPAT1R] = 0x400,
@@ -914,22 +914,12 @@ static int sh_mobile_check_var(struct fb_var_screeninfo *var, struct fb_info *in
{
struct sh_mobile_lcdc_chan *ch = info->par;
- if (var->xres < 160 || var->xres > 1920 ||
- var->yres < 120 || var->yres > 1080 ||
- var->left_margin < 32 || var->left_margin > 320 ||
- var->right_margin < 12 || var->right_margin > 240 ||
- var->upper_margin < 12 || var->upper_margin > 120 ||
- var->lower_margin < 1 || var->lower_margin > 64 ||
- var->hsync_len < 32 || var->hsync_len > 240 ||
- var->vsync_len < 2 || var->vsync_len > 64 ||
- var->pixclock < 6000 || var->pixclock > 40000 ||
+ if (var->xres > MAX_XRES || var->yres > MAX_YRES ||
var->xres * var->yres * (ch->cfg.bpp / 8) * 2 > info->fix.smem_len) {
- dev_warn(info->dev, "Invalid info: %u %u %u %u %u %u %u %u %u!\n",
- var->xres, var->yres,
- var->left_margin, var->right_margin,
- var->upper_margin, var->lower_margin,
- var->hsync_len, var->vsync_len,
- var->pixclock);
+ dev_warn(info->dev, "Invalid info: %u-%u-%u-%u x %u-%u-%u-%u @ %lukHz!\n",
+ var->left_margin, var->xres, var->right_margin, var->hsync_len,
+ var->upper_margin, var->yres, var->lower_margin, var->vsync_len,
+ PICOS2KHZ(var->pixclock));
return -EINVAL;
}
return 0;
@@ -1226,7 +1216,7 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
}
if (!mode)
- max_size = DEFAULT_XRES * DEFAULT_YRES;
+ max_size = MAX_XRES * MAX_YRES;
else if (max_cfg)
dev_dbg(&pdev->dev, "Found largest videomode %ux%u\n",
max_cfg->xres, max_cfg->yres);
diff --git a/drivers/video/via/via-core.c b/drivers/video/via/via-core.c
index a3aa9170950..6723d6910cd 100644
--- a/drivers/video/via/via-core.c
+++ b/drivers/video/via/via-core.c
@@ -15,6 +15,9 @@
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
+#include <linux/list.h>
+#include <linux/pm.h>
+#include <asm/olpc.h>
/*
* The default port config.
@@ -29,6 +32,19 @@ static struct via_port_cfg adap_configs[] = {
};
/*
+ * The OLPC XO-1.5 puts the camera power and reset lines onto
+ * GPIO 2C.
+ */
+static const struct via_port_cfg olpc_adap_configs[] = {
+ [VIA_PORT_26] = { VIA_PORT_I2C, VIA_MODE_I2C, VIASR, 0x26 },
+ [VIA_PORT_31] = { VIA_PORT_I2C, VIA_MODE_I2C, VIASR, 0x31 },
+ [VIA_PORT_25] = { VIA_PORT_GPIO, VIA_MODE_GPIO, VIASR, 0x25 },
+ [VIA_PORT_2C] = { VIA_PORT_GPIO, VIA_MODE_GPIO, VIASR, 0x2c },
+ [VIA_PORT_3D] = { VIA_PORT_GPIO, VIA_MODE_GPIO, VIASR, 0x3d },
+ { 0, 0, 0, 0 }
+};
+
+/*
* We currently only support one viafb device (will there ever be
* more than one?), so just declare it globally here.
*/
@@ -575,6 +591,78 @@ static void via_teardown_subdevs(void)
}
}
+/*
+ * Power management functions
+ */
+#ifdef CONFIG_PM
+static LIST_HEAD(viafb_pm_hooks);
+static DEFINE_MUTEX(viafb_pm_hooks_lock);
+
+void viafb_pm_register(struct viafb_pm_hooks *hooks)
+{
+ INIT_LIST_HEAD(&hooks->list);
+
+ mutex_lock(&viafb_pm_hooks_lock);
+ list_add_tail(&hooks->list, &viafb_pm_hooks);
+ mutex_unlock(&viafb_pm_hooks_lock);
+}
+EXPORT_SYMBOL_GPL(viafb_pm_register);
+
+void viafb_pm_unregister(struct viafb_pm_hooks *hooks)
+{
+ mutex_lock(&viafb_pm_hooks_lock);
+ list_del(&hooks->list);
+ mutex_unlock(&viafb_pm_hooks_lock);
+}
+EXPORT_SYMBOL_GPL(viafb_pm_unregister);
+
+static int via_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct viafb_pm_hooks *hooks;
+
+ if (state.event != PM_EVENT_SUSPEND)
+ return 0;
+ /*
+ * "I've occasionally hit a few drivers that caused suspend
+ * failures, and each and every time it was a driver bug, and
+ * the right thing to do was to just ignore the error and suspend
+ * anyway - returning an error code and trying to undo the suspend
+ * is not what anybody ever really wants, even if our model
+ *_allows_ for it."
+ * -- Linus Torvalds, Dec. 7, 2009
+ */
+ mutex_lock(&viafb_pm_hooks_lock);
+ list_for_each_entry_reverse(hooks, &viafb_pm_hooks, list)
+ hooks->suspend(hooks->private);
+ mutex_unlock(&viafb_pm_hooks_lock);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ return 0;
+}
+
+static int via_resume(struct pci_dev *pdev)
+{
+ struct viafb_pm_hooks *hooks;
+
+ /* Get the bus side powered up */
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+ if (pci_enable_device(pdev))
+ return 0;
+
+ pci_set_master(pdev);
+
+ /* Now bring back any subdevs */
+ mutex_lock(&viafb_pm_hooks_lock);
+ list_for_each_entry(hooks, &viafb_pm_hooks, list)
+ hooks->resume(hooks->private);
+ mutex_unlock(&viafb_pm_hooks_lock);
+
+ return 0;
+}
+#endif /* CONFIG_PM */
static int __devinit via_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
@@ -584,6 +672,7 @@ static int __devinit via_pci_probe(struct pci_dev *pdev,
ret = pci_enable_device(pdev);
if (ret)
return ret;
+
/*
* Global device initialization.
*/
@@ -591,6 +680,9 @@ static int __devinit via_pci_probe(struct pci_dev *pdev,
global_dev.pdev = pdev;
global_dev.chip_type = ent->driver_data;
global_dev.port_cfg = adap_configs;
+ if (machine_is_olpc())
+ global_dev.port_cfg = olpc_adap_configs;
+
spin_lock_init(&global_dev.reg_lock);
ret = via_pci_setup_mmio(&global_dev);
if (ret)
@@ -663,8 +755,8 @@ static struct pci_driver via_driver = {
.probe = via_pci_probe,
.remove = __devexit_p(via_pci_remove),
#ifdef CONFIG_PM
- .suspend = viafb_suspend,
- .resume = viafb_resume,
+ .suspend = via_suspend,
+ .resume = via_resume,
#endif
};
diff --git a/drivers/video/via/via-gpio.c b/drivers/video/via/via-gpio.c
index 39acb37e7a1..c2a0a1cfd3b 100644
--- a/drivers/video/via/via-gpio.c
+++ b/drivers/video/via/via-gpio.c
@@ -172,6 +172,28 @@ static void viafb_gpio_disable(struct viafb_gpio *gpio)
via_write_reg_mask(VIASR, gpio->vg_port_index, 0, 0x02);
}
+#ifdef CONFIG_PM
+
+static int viafb_gpio_suspend(void *private)
+{
+ return 0;
+}
+
+static int viafb_gpio_resume(void *private)
+{
+ int i;
+
+ for (i = 0; i < gpio_config.gpio_chip.ngpio; i += 2)
+ viafb_gpio_enable(gpio_config.active_gpios[i]);
+ return 0;
+}
+
+static struct viafb_pm_hooks viafb_gpio_pm_hooks = {
+ .suspend = viafb_gpio_suspend,
+ .resume = viafb_gpio_resume
+};
+#endif /* CONFIG_PM */
+
/*
* Look up a specific gpio and return the number it was assigned.
*/
@@ -236,6 +258,9 @@ static __devinit int viafb_gpio_probe(struct platform_device *platdev)
printk(KERN_ERR "viafb: failed to add gpios (%d)\n", ret);
gpio_config.gpio_chip.ngpio = 0;
}
+#ifdef CONFIG_PM
+ viafb_pm_register(&viafb_gpio_pm_hooks);
+#endif
return ret;
}
@@ -245,6 +270,10 @@ static int viafb_gpio_remove(struct platform_device *platdev)
unsigned long flags;
int ret = 0, i;
+#ifdef CONFIG_PM
+ viafb_pm_unregister(&viafb_gpio_pm_hooks);
+#endif
+
/*
* Get unregistered.
*/
diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c
index d298cfccd6f..289edd51952 100644
--- a/drivers/video/via/viafbdev.c
+++ b/drivers/video/via/viafbdev.c
@@ -1672,31 +1672,19 @@ static int parse_mode(const char *str, u32 *xres, u32 *yres)
#ifdef CONFIG_PM
-int viafb_suspend(struct pci_dev *pdev, pm_message_t state)
+static int viafb_suspend(void *unused)
{
- if (state.event == PM_EVENT_SUSPEND) {
- acquire_console_sem();
- fb_set_suspend(viafbinfo, 1);
-
- viafb_sync(viafbinfo);
-
- pci_save_state(pdev);
- pci_disable_device(pdev);
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
- release_console_sem();
- }
+ acquire_console_sem();
+ fb_set_suspend(viafbinfo, 1);
+ viafb_sync(viafbinfo);
+ release_console_sem();
return 0;
}
-int viafb_resume(struct pci_dev *pdev)
+static int viafb_resume(void *unused)
{
acquire_console_sem();
- pci_set_power_state(pdev, PCI_D0);
- pci_restore_state(pdev);
- if (pci_enable_device(pdev))
- goto fail;
- pci_set_master(pdev);
if (viaparinfo->shared->vdev->engine_mmio)
viafb_reset_engine(viaparinfo);
viafb_set_par(viafbinfo);
@@ -1704,11 +1692,15 @@ int viafb_resume(struct pci_dev *pdev)
viafb_set_par(viafbinfo1);
fb_set_suspend(viafbinfo, 0);
-fail:
release_console_sem();
return 0;
}
+static struct viafb_pm_hooks viafb_fb_pm_hooks = {
+ .suspend = viafb_suspend,
+ .resume = viafb_resume
+};
+
#endif
@@ -1899,6 +1891,10 @@ int __devinit via_fb_pci_probe(struct viafb_dev *vdev)
viafb_init_proc(viaparinfo->shared);
viafb_init_dac(IGA2);
+
+#ifdef CONFIG_PM
+ viafb_pm_register(&viafb_fb_pm_hooks);
+#endif
return 0;
out_fb_unreg:
diff --git a/drivers/video/via/viafbdev.h b/drivers/video/via/viafbdev.h
index 4960e3da664..d66f963e930 100644
--- a/drivers/video/via/viafbdev.h
+++ b/drivers/video/via/viafbdev.h
@@ -108,6 +108,4 @@ void via_fb_pci_remove(struct pci_dev *pdev);
/* Temporary */
int viafb_init(void);
void viafb_exit(void);
-int viafb_suspend(struct pci_dev *pdev, pm_message_t state);
-int viafb_resume(struct pci_dev *pdev);
#endif /* __VIAFBDEV_H__ */
diff --git a/drivers/video/vt8500lcdfb.c b/drivers/video/vt8500lcdfb.c
new file mode 100644
index 00000000000..7617f12e4fd
--- /dev/null
+++ b/drivers/video/vt8500lcdfb.c
@@ -0,0 +1,447 @@
+/*
+ * linux/drivers/video/vt8500lcdfb.c
+ *
+ * Copyright (C) 2010 Alexey Charkov <alchark@gmail.com>
+ *
+ * Based on skeletonfb.c and pxafb.c
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#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/delay.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/wait.h>
+
+#include <mach/vt8500fb.h>
+
+#include "vt8500lcdfb.h"
+#include "wmt_ge_rops.h"
+
+#define to_vt8500lcd_info(__info) container_of(__info, \
+ struct vt8500lcd_info, fb)
+
+static int vt8500lcd_set_par(struct fb_info *info)
+{
+ struct vt8500lcd_info *fbi = to_vt8500lcd_info(info);
+ int reg_bpp = 5; /* 16bpp */
+ int i;
+ unsigned long control0;
+
+ if (!fbi)
+ return -EINVAL;
+
+ if (info->var.bits_per_pixel <= 8) {
+ /* palettized */
+ info->var.red.offset = 0;
+ info->var.red.length = info->var.bits_per_pixel;
+ info->var.red.msb_right = 0;
+
+ info->var.green.offset = 0;
+ info->var.green.length = info->var.bits_per_pixel;
+ info->var.green.msb_right = 0;
+
+ info->var.blue.offset = 0;
+ info->var.blue.length = info->var.bits_per_pixel;
+ info->var.blue.msb_right = 0;
+
+ info->var.transp.offset = 0;
+ info->var.transp.length = 0;
+ info->var.transp.msb_right = 0;
+
+ info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
+ info->fix.line_length = info->var.xres_virtual /
+ (8/info->var.bits_per_pixel);
+ } else {
+ /* non-palettized */
+ info->var.transp.offset = 0;
+ info->var.transp.length = 0;
+ info->var.transp.msb_right = 0;
+
+ if (info->var.bits_per_pixel == 16) {
+ /* RGB565 */
+ info->var.red.offset = 11;
+ info->var.red.length = 5;
+ info->var.red.msb_right = 0;
+ info->var.green.offset = 5;
+ info->var.green.length = 6;
+ info->var.green.msb_right = 0;
+ info->var.blue.offset = 0;
+ info->var.blue.length = 5;
+ info->var.blue.msb_right = 0;
+ } else {
+ /* Equal depths per channel */
+ info->var.red.offset = info->var.bits_per_pixel
+ * 2 / 3;
+ info->var.red.length = info->var.bits_per_pixel / 3;
+ info->var.red.msb_right = 0;
+ info->var.green.offset = info->var.bits_per_pixel / 3;
+ info->var.green.length = info->var.bits_per_pixel / 3;
+ info->var.green.msb_right = 0;
+ info->var.blue.offset = 0;
+ info->var.blue.length = info->var.bits_per_pixel / 3;
+ info->var.blue.msb_right = 0;
+ }
+
+ info->fix.visual = FB_VISUAL_TRUECOLOR;
+ info->fix.line_length = info->var.bits_per_pixel > 16 ?
+ info->var.xres_virtual << 2 :
+ info->var.xres_virtual << 1;
+ }
+
+ for (i = 0; i < 8; i++) {
+ if (bpp_values[i] == info->var.bits_per_pixel) {
+ reg_bpp = i;
+ continue;
+ }
+ }
+
+ control0 = readl(fbi->regbase) & ~0xf;
+ writel(0, fbi->regbase);
+ while (readl(fbi->regbase + 0x38) & 0x10)
+ /* wait */;
+ writel((((info->var.hsync_len - 1) & 0x3f) << 26)
+ | ((info->var.left_margin & 0xff) << 18)
+ | (((info->var.xres - 1) & 0x3ff) << 8)
+ | (info->var.right_margin & 0xff), fbi->regbase + 0x4);
+ writel((((info->var.vsync_len - 1) & 0x3f) << 26)
+ | ((info->var.upper_margin & 0xff) << 18)
+ | (((info->var.yres - 1) & 0x3ff) << 8)
+ | (info->var.lower_margin & 0xff), fbi->regbase + 0x8);
+ writel((((info->var.yres - 1) & 0x400) << 2)
+ | ((info->var.xres - 1) & 0x400), fbi->regbase + 0x10);
+ writel(0x80000000, fbi->regbase + 0x20);
+ writel(control0 | (reg_bpp << 1) | 0x100, fbi->regbase);
+
+ return 0;
+}
+
+static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf)
+{
+ chan &= 0xffff;
+ chan >>= 16 - bf->length;
+ return chan << bf->offset;
+}
+
+static int vt8500lcd_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *info) {
+ struct vt8500lcd_info *fbi = to_vt8500lcd_info(info);
+ int ret = 1;
+ unsigned int val;
+ if (regno >= 256)
+ return -EINVAL;
+
+ if (info->var.grayscale)
+ red = green = blue =
+ (19595 * red + 38470 * green + 7471 * blue) >> 16;
+
+ switch (fbi->fb.fix.visual) {
+ case FB_VISUAL_TRUECOLOR:
+ if (regno < 16) {
+ u32 *pal = fbi->fb.pseudo_palette;
+
+ val = chan_to_field(red, &fbi->fb.var.red);
+ val |= chan_to_field(green, &fbi->fb.var.green);
+ val |= chan_to_field(blue, &fbi->fb.var.blue);
+
+ pal[regno] = val;
+ ret = 0;
+ }
+ break;
+
+ case FB_VISUAL_STATIC_PSEUDOCOLOR:
+ case FB_VISUAL_PSEUDOCOLOR:
+ writew((red & 0xf800)
+ | ((green >> 5) & 0x7e0)
+ | ((blue >> 11) & 0x1f),
+ fbi->palette_cpu + sizeof(u16) * regno);
+ break;
+ }
+
+ return ret;
+}
+
+static int vt8500lcd_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
+{
+ int ret = 0;
+ struct vt8500lcd_info *fbi = to_vt8500lcd_info(info);
+
+ if (cmd == FBIO_WAITFORVSYNC) {
+ /* Unmask End of Frame interrupt */
+ writel(0xffffffff ^ (1 << 3), fbi->regbase + 0x3c);
+ ret = wait_event_interruptible_timeout(fbi->wait,
+ readl(fbi->regbase + 0x38) & (1 << 3), HZ / 10);
+ /* Mask back to reduce unwanted interrupt traffic */
+ writel(0xffffffff, fbi->regbase + 0x3c);
+ if (ret < 0)
+ return ret;
+ if (ret == 0)
+ return -ETIMEDOUT;
+ }
+
+ return ret;
+}
+
+static int vt8500lcd_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ unsigned pixlen = info->fix.line_length / info->var.xres_virtual;
+ unsigned off = pixlen * var->xoffset
+ + info->fix.line_length * var->yoffset;
+ struct vt8500lcd_info *fbi = to_vt8500lcd_info(info);
+
+ writel((1 << 31)
+ | (((var->xres_virtual - var->xres) * pixlen / 4) << 20)
+ | (off >> 2), fbi->regbase + 0x20);
+ return 0;
+}
+
+static struct fb_ops vt8500lcd_ops = {
+ .owner = THIS_MODULE,
+ .fb_set_par = vt8500lcd_set_par,
+ .fb_setcolreg = vt8500lcd_setcolreg,
+ .fb_fillrect = wmt_ge_fillrect,
+ .fb_copyarea = wmt_ge_copyarea,
+ .fb_imageblit = sys_imageblit,
+ .fb_sync = wmt_ge_sync,
+ .fb_ioctl = vt8500lcd_ioctl,
+ .fb_pan_display = vt8500lcd_pan_display,
+};
+
+static irqreturn_t vt8500lcd_handle_irq(int irq, void *dev_id)
+{
+ struct vt8500lcd_info *fbi = dev_id;
+
+ if (readl(fbi->regbase + 0x38) & (1 << 3))
+ wake_up_interruptible(&fbi->wait);
+
+ writel(0xffffffff, fbi->regbase + 0x38);
+ return IRQ_HANDLED;
+}
+
+static int __devinit vt8500lcd_probe(struct platform_device *pdev)
+{
+ struct vt8500lcd_info *fbi;
+ struct resource *res;
+ struct vt8500fb_platform_data *pdata = pdev->dev.platform_data;
+ void *addr;
+ int irq, ret;
+
+ ret = -ENOMEM;
+ fbi = NULL;
+
+ fbi = kzalloc(sizeof(struct vt8500lcd_info) + sizeof(u32) * 16,
+ GFP_KERNEL);
+ if (!fbi) {
+ dev_err(&pdev->dev, "Failed to initialize framebuffer device\n");
+ ret = -ENOMEM;
+ goto failed;
+ }
+
+ strcpy(fbi->fb.fix.id, "VT8500 LCD");
+
+ fbi->fb.fix.type = FB_TYPE_PACKED_PIXELS;
+ fbi->fb.fix.xpanstep = 0;
+ fbi->fb.fix.ypanstep = 1;
+ fbi->fb.fix.ywrapstep = 0;
+ fbi->fb.fix.accel = FB_ACCEL_NONE;
+
+ fbi->fb.var.nonstd = 0;
+ fbi->fb.var.activate = FB_ACTIVATE_NOW;
+ fbi->fb.var.height = -1;
+ fbi->fb.var.width = -1;
+ fbi->fb.var.vmode = FB_VMODE_NONINTERLACED;
+
+ fbi->fb.fbops = &vt8500lcd_ops;
+ fbi->fb.flags = FBINFO_DEFAULT
+ | FBINFO_HWACCEL_COPYAREA
+ | FBINFO_HWACCEL_FILLRECT
+ | FBINFO_HWACCEL_YPAN
+ | FBINFO_VIRTFB
+ | FBINFO_PARTIAL_PAN_OK;
+ fbi->fb.node = -1;
+
+ addr = fbi;
+ addr = addr + sizeof(struct vt8500lcd_info);
+ fbi->fb.pseudo_palette = addr;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "no I/O memory resource defined\n");
+ ret = -ENODEV;
+ goto failed_fbi;
+ }
+
+ res = request_mem_region(res->start, resource_size(res), "vt8500lcd");
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to request I/O memory\n");
+ ret = -EBUSY;
+ goto failed_fbi;
+ }
+
+ fbi->regbase = ioremap(res->start, resource_size(res));
+ if (fbi->regbase == NULL) {
+ dev_err(&pdev->dev, "failed to map I/O memory\n");
+ ret = -EBUSY;
+ goto failed_free_res;
+ }
+
+ fbi->fb.fix.smem_start = pdata->video_mem_phys;
+ fbi->fb.fix.smem_len = pdata->video_mem_len;
+ fbi->fb.screen_base = pdata->video_mem_virt;
+
+ fbi->palette_size = PAGE_ALIGN(512);
+ fbi->palette_cpu = dma_alloc_coherent(&pdev->dev,
+ fbi->palette_size,
+ &fbi->palette_phys,
+ GFP_KERNEL);
+ if (fbi->palette_cpu == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate palette buffer\n");
+ ret = -ENOMEM;
+ goto failed_free_io;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "no IRQ defined\n");
+ ret = -ENODEV;
+ goto failed_free_palette;
+ }
+
+ ret = request_irq(irq, vt8500lcd_handle_irq, IRQF_DISABLED, "LCD", fbi);
+ if (ret) {
+ dev_err(&pdev->dev, "request_irq failed: %d\n", ret);
+ ret = -EBUSY;
+ goto failed_free_palette;
+ }
+
+ init_waitqueue_head(&fbi->wait);
+
+ if (fb_alloc_cmap(&fbi->fb.cmap, 256, 0) < 0) {
+ dev_err(&pdev->dev, "Failed to allocate color map\n");
+ ret = -ENOMEM;
+ goto failed_free_irq;
+ }
+
+ fb_videomode_to_var(&fbi->fb.var, &pdata->mode);
+ fbi->fb.var.bits_per_pixel = pdata->bpp;
+ fbi->fb.var.xres_virtual = pdata->xres_virtual;
+ fbi->fb.var.yres_virtual = pdata->yres_virtual;
+
+ ret = vt8500lcd_set_par(&fbi->fb);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to set parameters\n");
+ goto failed_free_cmap;
+ }
+
+ writel(fbi->fb.fix.smem_start >> 22, fbi->regbase + 0x1c);
+ writel((fbi->palette_phys & 0xfffffe00) | 1, fbi->regbase + 0x18);
+
+ platform_set_drvdata(pdev, fbi);
+
+ ret = register_framebuffer(&fbi->fb);
+ if (ret < 0) {
+ dev_err(&pdev->dev,
+ "Failed to register framebuffer device: %d\n", ret);
+ goto failed_free_cmap;
+ }
+
+ /*
+ * Ok, now enable the LCD controller
+ */
+ writel(readl(fbi->regbase) | 1, fbi->regbase);
+
+ return 0;
+
+failed_free_cmap:
+ if (fbi->fb.cmap.len)
+ fb_dealloc_cmap(&fbi->fb.cmap);
+failed_free_irq:
+ free_irq(irq, fbi);
+failed_free_palette:
+ dma_free_coherent(&pdev->dev, fbi->palette_size,
+ fbi->palette_cpu, fbi->palette_phys);
+failed_free_io:
+ iounmap(fbi->regbase);
+failed_free_res:
+ release_mem_region(res->start, resource_size(res));
+failed_fbi:
+ platform_set_drvdata(pdev, NULL);
+ kfree(fbi);
+failed:
+ return ret;
+}
+
+static int __devexit vt8500lcd_remove(struct platform_device *pdev)
+{
+ struct vt8500lcd_info *fbi = platform_get_drvdata(pdev);
+ struct resource *res;
+ int irq;
+
+ unregister_framebuffer(&fbi->fb);
+
+ writel(0, fbi->regbase);
+
+ if (fbi->fb.cmap.len)
+ fb_dealloc_cmap(&fbi->fb.cmap);
+
+ irq = platform_get_irq(pdev, 0);
+ free_irq(irq, fbi);
+
+ dma_free_coherent(&pdev->dev, fbi->palette_size,
+ fbi->palette_cpu, fbi->palette_phys);
+
+ iounmap(fbi->regbase);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
+
+ kfree(fbi);
+
+ return 0;
+}
+
+static struct platform_driver vt8500lcd_driver = {
+ .probe = vt8500lcd_probe,
+ .remove = __devexit_p(vt8500lcd_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "vt8500-lcd",
+ },
+};
+
+static int __init vt8500lcd_init(void)
+{
+ return platform_driver_register(&vt8500lcd_driver);
+}
+
+static void __exit vt8500lcd_exit(void)
+{
+ platform_driver_unregister(&vt8500lcd_driver);
+}
+
+module_init(vt8500lcd_init);
+module_exit(vt8500lcd_exit);
+
+MODULE_AUTHOR("Alexey Charkov <alchark@gmail.com>");
+MODULE_DESCRIPTION("LCD controller driver for VIA VT8500");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/vt8500lcdfb.h b/drivers/video/vt8500lcdfb.h
new file mode 100644
index 00000000000..36ca3ca09d8
--- /dev/null
+++ b/drivers/video/vt8500lcdfb.h
@@ -0,0 +1,34 @@
+/*
+ * linux/drivers/video/vt8500lcdfb.h
+ *
+ * Copyright (C) 2010 Alexey Charkov <alchark@gmail.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+struct vt8500lcd_info {
+ struct fb_info fb;
+ void __iomem *regbase;
+ void __iomem *palette_cpu;
+ dma_addr_t palette_phys;
+ size_t palette_size;
+ wait_queue_head_t wait;
+};
+
+static int bpp_values[] = {
+ 1,
+ 2,
+ 4,
+ 8,
+ 12,
+ 16,
+ 18,
+ 24,
+};
diff --git a/drivers/video/wm8505fb.c b/drivers/video/wm8505fb.c
new file mode 100644
index 00000000000..e37251b792c
--- /dev/null
+++ b/drivers/video/wm8505fb.c
@@ -0,0 +1,422 @@
+/*
+ * WonderMedia WM8505 Frame Buffer device driver
+ *
+ * Copyright (C) 2010 Ed Spiridonov <edo.rus@gmail.com>
+ * Based on vt8500lcdfb.c
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#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/delay.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/wait.h>
+
+#include <mach/vt8500fb.h>
+
+#include "wm8505fb_regs.h"
+#include "wmt_ge_rops.h"
+
+#define DRIVER_NAME "wm8505-fb"
+
+#define to_wm8505fb_info(__info) container_of(__info, \
+ struct wm8505fb_info, fb)
+struct wm8505fb_info {
+ struct fb_info fb;
+ void __iomem *regbase;
+ unsigned int contrast;
+};
+
+
+static int wm8505fb_init_hw(struct fb_info *info)
+{
+ struct wm8505fb_info *fbi = to_wm8505fb_info(info);
+
+ int i;
+
+ /* I know the purpose only of few registers, so clear unknown */
+ for (i = 0; i < 0x200; i += 4)
+ writel(0, fbi->regbase + i);
+
+ /* Set frame buffer address */
+ writel(fbi->fb.fix.smem_start, fbi->regbase + WMT_GOVR_FBADDR);
+ writel(fbi->fb.fix.smem_start, fbi->regbase + WMT_GOVR_FBADDR1);
+
+ /* Set in-memory picture format to RGB 32bpp */
+ writel(0x1c, fbi->regbase + WMT_GOVR_COLORSPACE);
+ writel(1, fbi->regbase + WMT_GOVR_COLORSPACE1);
+
+ /* Virtual buffer size */
+ writel(info->var.xres, fbi->regbase + WMT_GOVR_XRES);
+ writel(info->var.xres_virtual, fbi->regbase + WMT_GOVR_XRES_VIRTUAL);
+
+ /* black magic ;) */
+ writel(0xf, fbi->regbase + WMT_GOVR_FHI);
+ writel(4, fbi->regbase + WMT_GOVR_DVO_SET);
+ writel(1, fbi->regbase + WMT_GOVR_MIF_ENABLE);
+ writel(1, fbi->regbase + WMT_GOVR_REG_UPDATE);
+
+ return 0;
+}
+
+static int wm8505fb_set_timing(struct fb_info *info)
+{
+ struct wm8505fb_info *fbi = to_wm8505fb_info(info);
+
+ int h_start = info->var.left_margin;
+ int h_end = h_start + info->var.xres;
+ int h_all = h_end + info->var.right_margin;
+ int h_sync = info->var.hsync_len;
+
+ int v_start = info->var.upper_margin;
+ int v_end = v_start + info->var.yres;
+ int v_all = v_end + info->var.lower_margin;
+ int v_sync = info->var.vsync_len + 1;
+
+ writel(0, fbi->regbase + WMT_GOVR_TG);
+
+ writel(h_start, fbi->regbase + WMT_GOVR_TIMING_H_START);
+ writel(h_end, fbi->regbase + WMT_GOVR_TIMING_H_END);
+ writel(h_all, fbi->regbase + WMT_GOVR_TIMING_H_ALL);
+ writel(h_sync, fbi->regbase + WMT_GOVR_TIMING_H_SYNC);
+
+ writel(v_start, fbi->regbase + WMT_GOVR_TIMING_V_START);
+ writel(v_end, fbi->regbase + WMT_GOVR_TIMING_V_END);
+ writel(v_all, fbi->regbase + WMT_GOVR_TIMING_V_ALL);
+ writel(v_sync, fbi->regbase + WMT_GOVR_TIMING_V_SYNC);
+
+ writel(1, fbi->regbase + WMT_GOVR_TG);
+
+ return 0;
+}
+
+
+static int wm8505fb_set_par(struct fb_info *info)
+{
+ struct wm8505fb_info *fbi = to_wm8505fb_info(info);
+
+ if (!fbi)
+ return -EINVAL;
+
+ if (info->var.bits_per_pixel == 32) {
+ info->var.red.offset = 16;
+ info->var.red.length = 8;
+ info->var.red.msb_right = 0;
+ info->var.green.offset = 8;
+ info->var.green.length = 8;
+ info->var.green.msb_right = 0;
+ info->var.blue.offset = 0;
+ info->var.blue.length = 8;
+ info->var.blue.msb_right = 0;
+ info->fix.visual = FB_VISUAL_TRUECOLOR;
+ info->fix.line_length = info->var.xres_virtual << 2;
+ }
+
+ wm8505fb_set_timing(info);
+
+ writel(fbi->contrast<<16 | fbi->contrast<<8 | fbi->contrast,
+ fbi->regbase + WMT_GOVR_CONTRAST);
+
+ return 0;
+}
+
+static ssize_t contrast_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fb_info *info = dev_get_drvdata(dev);
+ struct wm8505fb_info *fbi = to_wm8505fb_info(info);
+
+ return sprintf(buf, "%d\n", fbi->contrast);
+}
+
+static ssize_t contrast_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct fb_info *info = dev_get_drvdata(dev);
+ struct wm8505fb_info *fbi = to_wm8505fb_info(info);
+ unsigned long tmp;
+
+ if (strict_strtoul(buf, 10, &tmp) || (tmp > 0xff))
+ return -EINVAL;
+ fbi->contrast = tmp;
+
+ wm8505fb_set_par(info);
+
+ return count;
+}
+
+static DEVICE_ATTR(contrast, 0644, contrast_show, contrast_store);
+
+static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf)
+{
+ chan &= 0xffff;
+ chan >>= 16 - bf->length;
+ return chan << bf->offset;
+}
+
+static int wm8505fb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *info) {
+ struct wm8505fb_info *fbi = to_wm8505fb_info(info);
+ int ret = 1;
+ unsigned int val;
+ if (regno >= 256)
+ return -EINVAL;
+
+ if (info->var.grayscale)
+ red = green = blue =
+ (19595 * red + 38470 * green + 7471 * blue) >> 16;
+
+ switch (fbi->fb.fix.visual) {
+ case FB_VISUAL_TRUECOLOR:
+ if (regno < 16) {
+ u32 *pal = info->pseudo_palette;
+
+ val = chan_to_field(red, &fbi->fb.var.red);
+ val |= chan_to_field(green, &fbi->fb.var.green);
+ val |= chan_to_field(blue, &fbi->fb.var.blue);
+
+ pal[regno] = val;
+ ret = 0;
+ }
+ break;
+ }
+
+ return ret;
+}
+
+static int wm8505fb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct wm8505fb_info *fbi = to_wm8505fb_info(info);
+
+ writel(var->xoffset, fbi->regbase + WMT_GOVR_XPAN);
+ writel(var->yoffset, fbi->regbase + WMT_GOVR_YPAN);
+ return 0;
+}
+
+static int wm8505fb_blank(int blank, struct fb_info *info)
+{
+ struct wm8505fb_info *fbi = to_wm8505fb_info(info);
+
+ switch (blank) {
+ case FB_BLANK_UNBLANK:
+ wm8505fb_set_timing(info);
+ break;
+ default:
+ writel(0, fbi->regbase + WMT_GOVR_TIMING_V_SYNC);
+ break;
+ }
+
+ return 0;
+}
+
+static struct fb_ops wm8505fb_ops = {
+ .owner = THIS_MODULE,
+ .fb_set_par = wm8505fb_set_par,
+ .fb_setcolreg = wm8505fb_setcolreg,
+ .fb_fillrect = wmt_ge_fillrect,
+ .fb_copyarea = wmt_ge_copyarea,
+ .fb_imageblit = sys_imageblit,
+ .fb_sync = wmt_ge_sync,
+ .fb_pan_display = wm8505fb_pan_display,
+ .fb_blank = wm8505fb_blank,
+};
+
+static int __devinit wm8505fb_probe(struct platform_device *pdev)
+{
+ struct wm8505fb_info *fbi;
+ struct resource *res;
+ void *addr;
+ struct vt8500fb_platform_data *pdata;
+ int ret;
+
+ pdata = pdev->dev.platform_data;
+
+ ret = -ENOMEM;
+ fbi = NULL;
+
+ fbi = kzalloc(sizeof(struct wm8505fb_info) + sizeof(u32) * 16,
+ GFP_KERNEL);
+ if (!fbi) {
+ dev_err(&pdev->dev, "Failed to initialize framebuffer device\n");
+ ret = -ENOMEM;
+ goto failed;
+ }
+
+ strcpy(fbi->fb.fix.id, DRIVER_NAME);
+
+ fbi->fb.fix.type = FB_TYPE_PACKED_PIXELS;
+ fbi->fb.fix.xpanstep = 1;
+ fbi->fb.fix.ypanstep = 1;
+ fbi->fb.fix.ywrapstep = 0;
+ fbi->fb.fix.accel = FB_ACCEL_NONE;
+
+ fbi->fb.fbops = &wm8505fb_ops;
+ fbi->fb.flags = FBINFO_DEFAULT
+ | FBINFO_HWACCEL_COPYAREA
+ | FBINFO_HWACCEL_FILLRECT
+ | FBINFO_HWACCEL_XPAN
+ | FBINFO_HWACCEL_YPAN
+ | FBINFO_VIRTFB
+ | FBINFO_PARTIAL_PAN_OK;
+ fbi->fb.node = -1;
+
+ addr = fbi;
+ addr = addr + sizeof(struct wm8505fb_info);
+ fbi->fb.pseudo_palette = addr;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "no I/O memory resource defined\n");
+ ret = -ENODEV;
+ goto failed_fbi;
+ }
+
+ res = request_mem_region(res->start, resource_size(res), "wm8505fb");
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to request I/O memory\n");
+ ret = -EBUSY;
+ goto failed_fbi;
+ }
+
+ fbi->regbase = ioremap(res->start, resource_size(res));
+ if (fbi->regbase == NULL) {
+ dev_err(&pdev->dev, "failed to map I/O memory\n");
+ ret = -EBUSY;
+ goto failed_free_res;
+ }
+
+ fb_videomode_to_var(&fbi->fb.var, &pdata->mode);
+
+ fbi->fb.var.nonstd = 0;
+ fbi->fb.var.activate = FB_ACTIVATE_NOW;
+
+ fbi->fb.var.height = -1;
+ fbi->fb.var.width = -1;
+ fbi->fb.var.xres_virtual = pdata->xres_virtual;
+ fbi->fb.var.yres_virtual = pdata->yres_virtual;
+ fbi->fb.var.bits_per_pixel = pdata->bpp;
+
+ fbi->fb.fix.smem_start = pdata->video_mem_phys;
+ fbi->fb.fix.smem_len = pdata->video_mem_len;
+ fbi->fb.screen_base = pdata->video_mem_virt;
+ fbi->fb.screen_size = pdata->video_mem_len;
+
+ if (fb_alloc_cmap(&fbi->fb.cmap, 256, 0) < 0) {
+ dev_err(&pdev->dev, "Failed to allocate color map\n");
+ ret = -ENOMEM;
+ goto failed_free_io;
+ }
+
+ wm8505fb_init_hw(&fbi->fb);
+
+ fbi->contrast = 0x80;
+ ret = wm8505fb_set_par(&fbi->fb);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to set parameters\n");
+ goto failed_free_cmap;
+ }
+
+ platform_set_drvdata(pdev, fbi);
+
+ ret = register_framebuffer(&fbi->fb);
+ if (ret < 0) {
+ dev_err(&pdev->dev,
+ "Failed to register framebuffer device: %d\n", ret);
+ goto failed_free_cmap;
+ }
+
+ ret = device_create_file(&pdev->dev, &dev_attr_contrast);
+ if (ret < 0) {
+ printk(KERN_WARNING "fb%d: failed to register attributes (%d)\n",
+ fbi->fb.node, ret);
+ }
+
+ printk(KERN_INFO "fb%d: %s frame buffer at 0x%lx-0x%lx\n",
+ fbi->fb.node, fbi->fb.fix.id, fbi->fb.fix.smem_start,
+ fbi->fb.fix.smem_start + fbi->fb.fix.smem_len - 1);
+
+ return 0;
+
+failed_free_cmap:
+ if (fbi->fb.cmap.len)
+ fb_dealloc_cmap(&fbi->fb.cmap);
+failed_free_io:
+ iounmap(fbi->regbase);
+failed_free_res:
+ release_mem_region(res->start, resource_size(res));
+failed_fbi:
+ platform_set_drvdata(pdev, NULL);
+ kfree(fbi);
+failed:
+ return ret;
+}
+
+static int __devexit wm8505fb_remove(struct platform_device *pdev)
+{
+ struct wm8505fb_info *fbi = platform_get_drvdata(pdev);
+ struct resource *res;
+
+ device_remove_file(&pdev->dev, &dev_attr_contrast);
+
+ unregister_framebuffer(&fbi->fb);
+
+ writel(0, fbi->regbase);
+
+ if (fbi->fb.cmap.len)
+ fb_dealloc_cmap(&fbi->fb.cmap);
+
+ iounmap(fbi->regbase);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
+
+ kfree(fbi);
+
+ return 0;
+}
+
+static struct platform_driver wm8505fb_driver = {
+ .probe = wm8505fb_probe,
+ .remove = __devexit_p(wm8505fb_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = DRIVER_NAME,
+ },
+};
+
+static int __init wm8505fb_init(void)
+{
+ return platform_driver_register(&wm8505fb_driver);
+}
+
+static void __exit wm8505fb_exit(void)
+{
+ platform_driver_unregister(&wm8505fb_driver);
+}
+
+module_init(wm8505fb_init);
+module_exit(wm8505fb_exit);
+
+MODULE_AUTHOR("Ed Spiridonov <edo.rus@gmail.com>");
+MODULE_DESCRIPTION("Framebuffer driver for WMT WM8505");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/wm8505fb_regs.h b/drivers/video/wm8505fb_regs.h
new file mode 100644
index 00000000000..4dd41668c6d
--- /dev/null
+++ b/drivers/video/wm8505fb_regs.h
@@ -0,0 +1,76 @@
+/*
+ * GOVR registers list for WM8505 chips
+ *
+ * Copyright (C) 2010 Ed Spiridonov <edo.rus@gmail.com>
+ * Based on VIA/WonderMedia wm8510-govrh-reg.h
+ * http://github.com/projectgus/kernel_wm8505/blob/wm8505_2.6.29/
+ * drivers/video/wmt/register/wm8510/wm8510-govrh-reg.h
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _WM8505FB_REGS_H
+#define _WM8505FB_REGS_H
+
+/*
+ * Color space select register, default value 0x1c
+ * BIT0 GOVRH_DVO_YUV2RGB_ENABLE
+ * BIT1 GOVRH_VGA_YUV2RGB_ENABLE
+ * BIT2 GOVRH_RGB_MODE
+ * BIT3 GOVRH_DAC_CLKINV
+ * BIT4 GOVRH_BLANK_ZERO
+ */
+#define WMT_GOVR_COLORSPACE 0x1e4
+/*
+ * Another colorspace select register, default value 1
+ * BIT0 GOVRH_DVO_RGB
+ * BIT1 GOVRH_DVO_YUV422
+ */
+#define WMT_GOVR_COLORSPACE1 0x30
+
+#define WMT_GOVR_CONTRAST 0x1b8
+#define WMT_GOVR_BRGHTNESS 0x1bc /* incompatible with RGB? */
+
+/* Framubeffer address */
+#define WMT_GOVR_FBADDR 0x90
+#define WMT_GOVR_FBADDR1 0x94 /* UV offset in YUV mode */
+
+/* Offset of visible window */
+#define WMT_GOVR_XPAN 0xa4
+#define WMT_GOVR_YPAN 0xa0
+
+#define WMT_GOVR_XRES 0x98
+#define WMT_GOVR_XRES_VIRTUAL 0x9c
+
+#define WMT_GOVR_MIF_ENABLE 0x80
+#define WMT_GOVR_FHI 0xa8
+#define WMT_GOVR_REG_UPDATE 0xe4
+
+/*
+ * BIT0 GOVRH_DVO_OUTWIDTH
+ * BIT1 GOVRH_DVO_SYNC_POLAR
+ * BIT2 GOVRH_DVO_ENABLE
+ */
+#define WMT_GOVR_DVO_SET 0x148
+
+/* Timing generator? */
+#define WMT_GOVR_TG 0x100
+
+/* Timings */
+#define WMT_GOVR_TIMING_H_ALL 0x108
+#define WMT_GOVR_TIMING_V_ALL 0x10c
+#define WMT_GOVR_TIMING_V_START 0x110
+#define WMT_GOVR_TIMING_V_END 0x114
+#define WMT_GOVR_TIMING_H_START 0x118
+#define WMT_GOVR_TIMING_H_END 0x11c
+#define WMT_GOVR_TIMING_V_SYNC 0x128
+#define WMT_GOVR_TIMING_H_SYNC 0x12c
+
+#endif /* _WM8505FB_REGS_H */
diff --git a/drivers/video/wmt_ge_rops.c b/drivers/video/wmt_ge_rops.c
new file mode 100644
index 00000000000..f31883f8eaf
--- /dev/null
+++ b/drivers/video/wmt_ge_rops.c
@@ -0,0 +1,192 @@
+/*
+ * linux/drivers/video/wmt_ge_rops.c
+ *
+ * Accelerators for raster operations using WonderMedia Graphics Engine
+ *
+ * Copyright (C) 2010 Alexey Charkov <alchark@gmail.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/fb.h>
+#include <linux/platform_device.h>
+#include "fb_draw.h"
+
+#define GE_COMMAND_OFF 0x00
+#define GE_DEPTH_OFF 0x04
+#define GE_HIGHCOLOR_OFF 0x08
+#define GE_ROPCODE_OFF 0x14
+#define GE_FIRE_OFF 0x18
+#define GE_SRCBASE_OFF 0x20
+#define GE_SRCDISPW_OFF 0x24
+#define GE_SRCDISPH_OFF 0x28
+#define GE_SRCAREAX_OFF 0x2c
+#define GE_SRCAREAY_OFF 0x30
+#define GE_SRCAREAW_OFF 0x34
+#define GE_SRCAREAH_OFF 0x38
+#define GE_DESTBASE_OFF 0x3c
+#define GE_DESTDISPW_OFF 0x40
+#define GE_DESTDISPH_OFF 0x44
+#define GE_DESTAREAX_OFF 0x48
+#define GE_DESTAREAY_OFF 0x4c
+#define GE_DESTAREAW_OFF 0x50
+#define GE_DESTAREAH_OFF 0x54
+#define GE_PAT0C_OFF 0x88 /* Pattern 0 color */
+#define GE_ENABLE_OFF 0xec
+#define GE_INTEN_OFF 0xf0
+#define GE_STATUS_OFF 0xf8
+
+static void __iomem *regbase;
+
+void wmt_ge_fillrect(struct fb_info *p, const struct fb_fillrect *rect)
+{
+ unsigned long fg, pat;
+
+ if (p->state != FBINFO_STATE_RUNNING)
+ return;
+
+ if (p->fix.visual == FB_VISUAL_TRUECOLOR ||
+ p->fix.visual == FB_VISUAL_DIRECTCOLOR)
+ fg = ((u32 *) (p->pseudo_palette))[rect->color];
+ else
+ fg = rect->color;
+
+ pat = pixel_to_pat(p->var.bits_per_pixel, fg);
+
+ if (p->fbops->fb_sync)
+ p->fbops->fb_sync(p);
+
+ writel(p->var.bits_per_pixel == 32 ? 3 :
+ (p->var.bits_per_pixel == 8 ? 0 : 1), regbase + GE_DEPTH_OFF);
+ writel(p->var.bits_per_pixel == 15 ? 1 : 0, regbase + GE_HIGHCOLOR_OFF);
+ writel(p->fix.smem_start, regbase + GE_DESTBASE_OFF);
+ writel(p->var.xres_virtual - 1, regbase + GE_DESTDISPW_OFF);
+ writel(p->var.yres_virtual - 1, regbase + GE_DESTDISPH_OFF);
+ writel(rect->dx, regbase + GE_DESTAREAX_OFF);
+ writel(rect->dy, regbase + GE_DESTAREAY_OFF);
+ writel(rect->width - 1, regbase + GE_DESTAREAW_OFF);
+ writel(rect->height - 1, regbase + GE_DESTAREAH_OFF);
+
+ writel(pat, regbase + GE_PAT0C_OFF);
+ writel(1, regbase + GE_COMMAND_OFF);
+ writel(rect->rop == ROP_XOR ? 0x5a : 0xf0, regbase + GE_ROPCODE_OFF);
+ writel(1, regbase + GE_FIRE_OFF);
+}
+EXPORT_SYMBOL_GPL(wmt_ge_fillrect);
+
+void wmt_ge_copyarea(struct fb_info *p, const struct fb_copyarea *area)
+{
+ if (p->state != FBINFO_STATE_RUNNING)
+ return;
+
+ if (p->fbops->fb_sync)
+ p->fbops->fb_sync(p);
+
+ writel(p->var.bits_per_pixel > 16 ? 3 :
+ (p->var.bits_per_pixel > 8 ? 1 : 0), regbase + GE_DEPTH_OFF);
+
+ writel(p->fix.smem_start, regbase + GE_SRCBASE_OFF);
+ writel(p->var.xres_virtual - 1, regbase + GE_SRCDISPW_OFF);
+ writel(p->var.yres_virtual - 1, regbase + GE_SRCDISPH_OFF);
+ writel(area->sx, regbase + GE_SRCAREAX_OFF);
+ writel(area->sy, regbase + GE_SRCAREAY_OFF);
+ writel(area->width - 1, regbase + GE_SRCAREAW_OFF);
+ writel(area->height - 1, regbase + GE_SRCAREAH_OFF);
+
+ writel(p->fix.smem_start, regbase + GE_DESTBASE_OFF);
+ writel(p->var.xres_virtual - 1, regbase + GE_DESTDISPW_OFF);
+ writel(p->var.yres_virtual - 1, regbase + GE_DESTDISPH_OFF);
+ writel(area->dx, regbase + GE_DESTAREAX_OFF);
+ writel(area->dy, regbase + GE_DESTAREAY_OFF);
+ writel(area->width - 1, regbase + GE_DESTAREAW_OFF);
+ writel(area->height - 1, regbase + GE_DESTAREAH_OFF);
+
+ writel(0xcc, regbase + GE_ROPCODE_OFF);
+ writel(1, regbase + GE_COMMAND_OFF);
+ writel(1, regbase + GE_FIRE_OFF);
+}
+EXPORT_SYMBOL_GPL(wmt_ge_copyarea);
+
+int wmt_ge_sync(struct fb_info *p)
+{
+ int loops = 5000000;
+ while ((readl(regbase + GE_STATUS_OFF) & 4) && --loops)
+ cpu_relax();
+ return loops > 0 ? 0 : -EBUSY;
+}
+EXPORT_SYMBOL_GPL(wmt_ge_sync);
+
+static int __devinit wmt_ge_rops_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ int ret;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "no I/O memory resource defined\n");
+ ret = -ENODEV;
+ goto error;
+ }
+
+ /* Only one ROP engine is presently supported. */
+ if (unlikely(regbase)) {
+ WARN_ON(1);
+ return -EBUSY;
+ }
+
+ regbase = ioremap(res->start, resource_size(res));
+ if (regbase == NULL) {
+ dev_err(&pdev->dev, "failed to map I/O memory\n");
+ ret = -EBUSY;
+ goto error;
+ }
+
+ writel(1, regbase + GE_ENABLE_OFF);
+ printk(KERN_INFO "Enabled support for WMT GE raster acceleration\n");
+
+ return 0;
+
+error:
+ return ret;
+}
+
+static int __devexit wmt_ge_rops_remove(struct platform_device *pdev)
+{
+ iounmap(regbase);
+ return 0;
+}
+
+static struct platform_driver wmt_ge_rops_driver = {
+ .probe = wmt_ge_rops_probe,
+ .remove = __devexit_p(wmt_ge_rops_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "wmt_ge_rops",
+ },
+};
+
+static int __init wmt_ge_rops_init(void)
+{
+ return platform_driver_register(&wmt_ge_rops_driver);
+}
+
+static void __exit wmt_ge_rops_exit(void)
+{
+ platform_driver_unregister(&wmt_ge_rops_driver);
+}
+
+module_init(wmt_ge_rops_init);
+module_exit(wmt_ge_rops_exit);
+
+MODULE_AUTHOR("Alexey Charkov <alchark@gmail.com");
+MODULE_DESCRIPTION("Accelerators for raster operations using "
+ "WonderMedia Graphics Engine");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/wmt_ge_rops.h b/drivers/video/wmt_ge_rops.h
new file mode 100644
index 00000000000..87380751a44
--- /dev/null
+++ b/drivers/video/wmt_ge_rops.h
@@ -0,0 +1,5 @@
+extern void wmt_ge_fillrect(struct fb_info *info,
+ const struct fb_fillrect *rect);
+extern void wmt_ge_copyarea(struct fb_info *info,
+ const struct fb_copyarea *area);
+extern int wmt_ge_sync(struct fb_info *info);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 18:02:30 +0000