ENGR00141217-5 IPU\VPU\GPU: upgrade to 2.6.38

Add drivers/mxc
Add drivers/video/mxc
Add drivers/media/mxc
fb device: change acquire_console_sem to console_lock
And release_console_sem to console_unlock
Add DMA Zone support
Add TVE driver, add regulator
Add hdmi support
Add VPU

Fix build error
ioctl --> unlocked_ioctl
DECLARE_MUTEX --> DEFINE_SEMAPHORE

Signed-off-by: Jason Chen <b02280@freescale.com>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>

1 files changed, 395 insertions, 0 deletions

diff --git a/drivers/video/mxc/mxc_edid.c b/drivers/video/mxc/mxc_edid.c
new file mode 100644
index 000000000000..1102a640ed71
--- /dev/null
+++ b/drivers/video/mxc/mxc_edid.c
@@ -0,0 +1,395 @@
+/*
+ * Copyright 2009-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @defgroup Framebuffer Framebuffer Driver for SDC and ADC.
+ */
+
+/*!
+ * @file mxc_edid.c
+ *
+ * @brief MXC EDID driver
+ *
+ * @ingroup Framebuffer
+ */
+
+/*!
+ * Include files
+ */
+#include <linux/i2c.h>
+#include <linux/fb.h>
+#include <linux/console.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mxcfb.h>
+#include <linux/fsl_devices.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <mach/mxc_edid.h>
+#include "../edid.h"
+
+#define MXC_EDID_LENGTH (EDID_LENGTH*2)
+
+#undef DEBUG  /* define this for verbose EDID parsing output */
+
+#ifdef DEBUG
+#define DPRINTK(fmt, args...) printk(fmt, ## args)
+#else
+#define DPRINTK(fmt, args...)
+#endif
+
+struct mxc_ddc_data {
+	struct platform_device *pdev;
+	struct i2c_client *client;
+	struct delayed_work det_work;
+	struct fb_info *fbi;
+	struct mxc_edid_cfg edid_cfg;
+	u8 cable_plugin;
+	u8 edid[MXC_EDID_LENGTH];
+
+	u32 di;
+	void (*init)(void);
+	int (*update)(void);
+} mxc_ddc;
+
+static bool g_enable_ddc;
+
+void mxc_edid_parse_ext_blk(unsigned char *edid,
+		struct mxc_edid_cfg *cfg,
+		struct fb_monspecs *specs)
+{
+	unsigned char index = 0x0;
+
+	if (edid[index++] != 0x2) /* only support cea ext block now */
+		return;
+	if (edid[index++] != 0x3) /* only support version 3*/
+		return;
+
+	cfg->cea_underscan = (edid[index] >> 7) & 0x1;
+	cfg->cea_basicaudio = (edid[index] >> 6) & 0x1;
+	cfg->cea_ycbcr444 = (edid[index] >> 5) & 0x1;
+	cfg->cea_ycbcr422 = (edid[index] >> 4) & 0x1;
+
+	return fb_edid_add_monspecs(edid, specs);
+}
+
+/* make sure edid has 256 bytes*/
+int mxc_edid_read(struct i2c_adapter *adp, unsigned short addr,
+	unsigned char *edid, struct mxc_edid_cfg *cfg, struct fb_info *fbi)
+{
+	u8 buf0[2] = {0, 0};
+	int dat = 0;
+	struct i2c_msg msg[2] = {
+		{
+		.addr	= addr,
+		.flags	= 0,
+		.len	= 1,
+		.buf	= buf0,
+		}, {
+		.addr	= addr,
+		.flags	= I2C_M_RD,
+		.len	= EDID_LENGTH,
+		.buf	= edid,
+		},
+	};
+
+	if (adp == NULL)
+		return -EINVAL;
+
+	memset(edid, 0, 256);
+	memset(cfg, 0, sizeof(struct mxc_edid_cfg));
+
+	buf0[0] = 0x00;
+	dat = i2c_transfer(adp, msg, 2);
+
+	/* If 0x50 fails, try 0x37. */
+	if (edid[1] == 0x00) {
+		msg[0].addr = msg[1].addr = 0x37;
+		dat = i2c_transfer(adp, msg, 2);
+		if (dat < 0)
+			return dat;
+	}
+
+	if (edid[1] == 0x00)
+		return -ENOENT;
+
+	/* edid first block parsing */
+	memset(&fbi->monspecs, 0, sizeof(fbi->monspecs));
+	fb_edid_to_monspecs(edid, &fbi->monspecs);
+
+	/* need read ext block? Only support one more blk now*/
+	if (edid[0x7E]) {
+		if (edid[0x7E] > 1)
+			DPRINTK("Edid has %d ext block, \
+				but now only support 1 ext blk\n", edid[0x7E]);
+		buf0[0] = 0x80;
+		msg[1].buf = edid + EDID_LENGTH;
+		dat = i2c_transfer(adp, msg, 2);
+		if (dat < 0)
+			return dat;
+
+		/* edid ext block parsing */
+		mxc_edid_parse_ext_blk(edid + 128, cfg, &fbi->monspecs);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(mxc_edid_read);
+
+static ssize_t mxc_ddc_show_state(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	if (mxc_ddc.cable_plugin == 0)
+		strcpy(buf, "plugout\n");
+	else
+		strcpy(buf, "plugin\n");
+
+	return strlen(buf);
+}
+
+static DEVICE_ATTR(cable_state, S_IRUGO, mxc_ddc_show_state, NULL);
+
+static ssize_t mxc_ddc_show_edid(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int i, j, len = 0;
+
+	for (j = 0; j < MXC_EDID_LENGTH/16; j++) {
+		for (i = 0; i < 16; i++)
+			len += sprintf(buf+len, "0x%02X ",
+					mxc_ddc.edid[j*16 + i]);
+		len += sprintf(buf+len, "\n");
+	}
+
+	return len;
+}
+
+static DEVICE_ATTR(edid, S_IRUGO, mxc_ddc_show_edid, NULL);
+
+static void det_worker(struct work_struct *work)
+{
+	char event_string[16];
+	char *envp[] = { event_string, NULL };
+
+	/* cable connection changes */
+	if (mxc_ddc.update()) {
+		mxc_ddc.cable_plugin = 1;
+		sprintf(event_string, "EVENT=plugin");
+
+		/* make sure fb is powerdown */
+		console_lock();
+		fb_blank(mxc_ddc.fbi, FB_BLANK_POWERDOWN);
+		console_unlock();
+
+		if (mxc_edid_read(mxc_ddc.client->adapter, mxc_ddc.client->addr,
+				mxc_ddc.edid, &mxc_ddc.edid_cfg, mxc_ddc.fbi) < 0)
+			dev_err(&mxc_ddc.client->dev,
+					"MXC ddc: read edid fail\n");
+		else {
+			if (mxc_ddc.fbi->monspecs.modedb_len > 0) {
+				int i;
+				const struct fb_videomode *mode;
+				struct fb_videomode m;
+
+				fb_destroy_modelist(&mxc_ddc.fbi->modelist);
+
+				for (i = 0; i < mxc_ddc.fbi->monspecs.modedb_len; i++)
+					fb_add_videomode(&mxc_ddc.fbi->monspecs.modedb[i],
+							&mxc_ddc.fbi->modelist);
+
+				fb_var_to_videomode(&m, &mxc_ddc.fbi->var);
+				mode = fb_find_nearest_mode(&m,
+						&mxc_ddc.fbi->modelist);
+
+				fb_videomode_to_var(&mxc_ddc.fbi->var, mode);
+
+				mxc_ddc.fbi->var.activate |= FB_ACTIVATE_FORCE;
+				console_lock();
+				mxc_ddc.fbi->flags |= FBINFO_MISC_USEREVENT;
+				fb_set_var(mxc_ddc.fbi, &mxc_ddc.fbi->var);
+				mxc_ddc.fbi->flags &= ~FBINFO_MISC_USEREVENT;
+				console_unlock();
+			}
+
+			console_lock();
+			fb_blank(mxc_ddc.fbi, FB_BLANK_UNBLANK);
+			console_unlock();
+		}
+	} else {
+		mxc_ddc.cable_plugin = 0;
+		sprintf(event_string, "EVENT=plugout");
+		console_lock();
+		fb_blank(mxc_ddc.fbi, FB_BLANK_POWERDOWN);
+		console_unlock();
+	}
+
+	kobject_uevent_env(&mxc_ddc.pdev->dev.kobj, KOBJ_CHANGE, envp);
+}
+
+static irqreturn_t mxc_ddc_detect_handler(int irq, void *data)
+{
+	if (mxc_ddc.fbi)
+		schedule_delayed_work(&(mxc_ddc.det_work), msecs_to_jiffies(300));
+	return IRQ_HANDLED;
+}
+
+static int mxc_ddc_fb_event(struct notifier_block *nb, unsigned long val, void *v)
+{
+	struct fb_event *event = v;
+	struct fb_info *fbi = event->info;
+
+	if ((mxc_ddc.di)) {
+		if (strcmp(event->info->fix.id, "DISP3 BG - DI1"))
+			return 0;
+	} else {
+		if (strcmp(event->info->fix.id, "DISP3 BG"))
+			return 0;
+	}
+
+	switch (val) {
+	case FB_EVENT_FB_REGISTERED:
+		if (mxc_ddc.fbi != NULL)
+			break;
+		mxc_ddc.fbi = fbi;
+		break;
+	}
+	return 0;
+}
+
+static struct notifier_block nb = {
+	.notifier_call = mxc_ddc_fb_event,
+};
+
+static int __devinit mxc_ddc_probe(struct i2c_client *client,
+		const struct i2c_device_id *id)
+{
+	int ret = 0;
+	struct fb_info edid_fbi;
+	struct fsl_mxc_ddc_platform_data *plat = client->dev.platform_data;
+
+	if (g_enable_ddc == false)
+		return -EPERM;
+
+	mxc_ddc.client = client;
+	mxc_ddc.di = plat->di;
+	mxc_ddc.init = plat->init;
+	mxc_ddc.update = plat->update;
+
+	if (!mxc_ddc.update)
+		return -EINVAL;
+
+	if (mxc_ddc.init)
+		mxc_ddc.init();
+
+	if (mxc_ddc.update()) {
+		mxc_ddc.cable_plugin = 1;
+		/* try to read edid */
+		if (mxc_edid_read(client->adapter, client->addr,
+					mxc_ddc.edid, &mxc_ddc.edid_cfg, &edid_fbi) < 0)
+			dev_warn(&client->dev, "Can not read edid\n");
+#if defined(CONFIG_MXC_IPU_V3) && defined(CONFIG_FB_MXC_SYNC_PANEL)
+		else
+			mxcfb_register_mode(mxc_ddc.di, edid_fbi.monspecs.modedb,
+					edid_fbi.monspecs.modedb_len, MXC_DISP_DDC_DEV);
+#endif
+	} else
+		mxc_ddc.cable_plugin = 0;
+
+	if (client->irq) {
+		ret = request_irq(client->irq, mxc_ddc_detect_handler,
+				IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
+				"ddc_det", &mxc_ddc);
+		if (ret < 0) {
+			dev_warn(&client->dev,
+				"MXC ddc: cound not request det irq %d\n",
+				client->irq);
+			goto err;
+		} else {
+			INIT_DELAYED_WORK(&(mxc_ddc.det_work), det_worker);
+			ret = device_create_file(&mxc_ddc.pdev->dev, &dev_attr_cable_state);
+			if (ret < 0)
+				dev_warn(&client->dev,
+					"MXC ddc: cound not create sys node for cable state\n");
+			ret = device_create_file(&mxc_ddc.pdev->dev, &dev_attr_edid);
+			if (ret < 0)
+				dev_warn(&client->dev,
+					"MXC ddc: cound not create sys node for edid\n");
+		}
+	}
+
+	fb_register_client(&nb);
+
+err:
+	return ret;
+}
+
+static int __devexit mxc_ddc_remove(struct i2c_client *client)
+{
+	fb_unregister_client(&nb);
+	return 0;
+}
+
+static int __init enable_ddc_setup(char *options)
+{
+	g_enable_ddc = true;
+
+	return 1;
+}
+__setup("ddc", enable_ddc_setup);
+
+static const struct i2c_device_id mxc_ddc_id[] = {
+	{ "mxc_ddc", 0 },
+	{},
+};
+MODULE_DEVICE_TABLE(i2c, mxc_ddc_id);
+
+static struct i2c_driver mxc_ddc_i2c_driver = {
+	.driver = {
+		   .name = "mxc_ddc",
+		   },
+	.probe = mxc_ddc_probe,
+	.remove = mxc_ddc_remove,
+	.id_table = mxc_ddc_id,
+};
+
+static int __init mxc_ddc_init(void)
+{
+	int ret;
+
+	memset(&mxc_ddc, 0, sizeof(mxc_ddc));
+
+	mxc_ddc.pdev = platform_device_register_simple("mxc_ddc", 0, NULL, 0);
+	if (IS_ERR(mxc_ddc.pdev)) {
+		printk(KERN_ERR
+				"Unable to register MXC DDC as a platform device\n");
+		ret = PTR_ERR(mxc_ddc.pdev);
+		goto err;
+	}
+
+	return i2c_add_driver(&mxc_ddc_i2c_driver);
+err:
+	return ret;
+}
+
+static void __exit mxc_ddc_exit(void)
+{
+	i2c_del_driver(&mxc_ddc_i2c_driver);
+	platform_device_unregister(mxc_ddc.pdev);
+}
+
+module_init(mxc_ddc_init);
+module_exit(mxc_ddc_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("MXC DDC driver");
+MODULE_LICENSE("GPL");