Added missing tegra files.HEADmaster

1 files changed, 409 insertions, 0 deletions

diff --git a/drivers/media/video/adv7175.c b/drivers/media/video/adv7175.c
new file mode 100644
index 00000000000..d2327dbb473
--- /dev/null
+++ b/drivers/media/video/adv7175.c
@@ -0,0 +1,409 @@
+/*
+ *  adv7175 - adv7175a video encoder driver version 0.0.3
+ *
+ * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
+ * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
+ * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
+ *    - some corrections for Pinnacle Systems Inc. DC10plus card.
+ *
+ * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *    - moved over to linux>=2.4.x i2c protocol (9/9/2002)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/ioctl.h>
+#include <asm/uaccess.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
+
+MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver");
+MODULE_AUTHOR("Dave Perks");
+MODULE_LICENSE("GPL");
+
+#define   I2C_ADV7175        0xd4
+#define   I2C_ADV7176        0x54
+
+
+static int debug;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0-1)");
+
+/* ----------------------------------------------------------------------- */
+
+struct adv7175 {
+        struct v4l2_subdev sd;
+        v4l2_std_id norm;
+        int input;
+};
+
+static inline struct adv7175 *to_adv7175(struct v4l2_subdev *sd)
+{
+        return container_of(sd, struct adv7175, sd);
+}
+
+static char *inputs[] = { "pass_through", "play_back", "color_bar" };
+
+/* ----------------------------------------------------------------------- */
+
+static inline int adv7175_write(struct v4l2_subdev *sd, u8 reg, u8 value)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static inline int adv7175_read(struct v4l2_subdev *sd, u8 reg)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int adv7175_write_block(struct v4l2_subdev *sd,
+                     const u8 *data, unsigned int len)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+        int ret = -1;
+        u8 reg;
+
+        /* the adv7175 has an autoincrement function, use it if
+         * the adapter understands raw I2C */
+        if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+                /* do raw I2C, not smbus compatible */
+                u8 block_data[32];
+                int block_len;
+
+                while (len >= 2) {
+                        block_len = 0;
+                        block_data[block_len++] = reg = data[0];
+                        do {
+                                block_data[block_len++] = data[1];
+                                reg++;
+                                len -= 2;
+                                data += 2;
+                        } while (len >= 2 && data[0] == reg && block_len < 32);
+                        ret = i2c_master_send(client, block_data, block_len);
+                        if (ret < 0)
+                                break;
+                }
+        } else {
+                /* do some slow I2C emulation kind of thing */
+                while (len >= 2) {
+                        reg = *data++;
+                        ret = adv7175_write(sd, reg, *data++);
+                        if (ret < 0)
+                                break;
+                        len -= 2;
+                }
+        }
+
+        return ret;
+}
+
+static void set_subcarrier_freq(struct v4l2_subdev *sd, int pass_through)
+{
+        /* for some reason pass_through NTSC needs
+         * a different sub-carrier freq to remain stable. */
+        if (pass_through)
+                adv7175_write(sd, 0x02, 0x00);
+        else
+                adv7175_write(sd, 0x02, 0x55);
+
+        adv7175_write(sd, 0x03, 0x55);
+        adv7175_write(sd, 0x04, 0x55);
+        adv7175_write(sd, 0x05, 0x25);
+}
+
+/* ----------------------------------------------------------------------- */
+/* Output filter:  S-Video  Composite */
+
+#define MR050       0x11        /* 0x09 */
+#define MR060       0x14        /* 0x0c */
+
+/* ----------------------------------------------------------------------- */
+
+#define TR0MODE     0x46
+#define TR0RST      0x80
+
+#define TR1CAPT     0x80
+#define TR1PLAY     0x00
+
+static const unsigned char init_common[] = {
+
+        0x00, MR050,            /* MR0, PAL enabled */
+        0x01, 0x00,             /* MR1 */
+        0x02, 0x0c,             /* subc. freq. */
+        0x03, 0x8c,             /* subc. freq. */
+        0x04, 0x79,             /* subc. freq. */
+        0x05, 0x26,             /* subc. freq. */
+        0x06, 0x40,             /* subc. phase */
+
+        0x07, TR0MODE,          /* TR0, 16bit */
+        0x08, 0x21,             /*  */
+        0x09, 0x00,             /*  */
+        0x0a, 0x00,             /*  */
+        0x0b, 0x00,             /*  */
+        0x0c, TR1CAPT,          /* TR1 */
+        0x0d, 0x4f,             /* MR2 */
+        0x0e, 0x00,             /*  */
+        0x0f, 0x00,             /*  */
+        0x10, 0x00,             /*  */
+        0x11, 0x00,             /*  */
+};
+
+static const unsigned char init_pal[] = {
+        0x00, MR050,            /* MR0, PAL enabled */
+        0x01, 0x00,             /* MR1 */
+        0x02, 0x0c,             /* subc. freq. */
+        0x03, 0x8c,             /* subc. freq. */
+        0x04, 0x79,             /* subc. freq. */
+        0x05, 0x26,             /* subc. freq. */
+        0x06, 0x40,             /* subc. phase */
+};
+
+static const unsigned char init_ntsc[] = {
+        0x00, MR060,            /* MR0, NTSC enabled */
+        0x01, 0x00,             /* MR1 */
+        0x02, 0x55,             /* subc. freq. */
+        0x03, 0x55,             /* subc. freq. */
+        0x04, 0x55,             /* subc. freq. */
+        0x05, 0x25,             /* subc. freq. */
+        0x06, 0x1a,             /* subc. phase */
+};
+
+static int adv7175_init(struct v4l2_subdev *sd, u32 val)
+{
+        /* This is just for testing!!! */
+        adv7175_write_block(sd, init_common, sizeof(init_common));
+        adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+        adv7175_write(sd, 0x07, TR0MODE);
+        return 0;
+}
+
+static int adv7175_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+        struct adv7175 *encoder = to_adv7175(sd);
+
+        if (std & V4L2_STD_NTSC) {
+                adv7175_write_block(sd, init_ntsc, sizeof(init_ntsc));
+                if (encoder->input == 0)
+                        adv7175_write(sd, 0x0d, 0x4f);  /* Enable genlock */
+                adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+                adv7175_write(sd, 0x07, TR0MODE);
+        } else if (std & V4L2_STD_PAL) {
+                adv7175_write_block(sd, init_pal, sizeof(init_pal));
+                if (encoder->input == 0)
+                        adv7175_write(sd, 0x0d, 0x4f);  /* Enable genlock */
+                adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+                adv7175_write(sd, 0x07, TR0MODE);
+        } else if (std & V4L2_STD_SECAM) {
+                /* This is an attempt to convert
+                 * SECAM->PAL (typically it does not work
+                 * due to genlock: when decoder is in SECAM
+                 * and encoder in in PAL the subcarrier can
+                 * not be syncronized with horizontal
+                 * quency) */
+                adv7175_write_block(sd, init_pal, sizeof(init_pal));
+                if (encoder->input == 0)
+                        adv7175_write(sd, 0x0d, 0x49);  /* Disable genlock */
+                adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+                adv7175_write(sd, 0x07, TR0MODE);
+        } else {
+                v4l2_dbg(1, debug, sd, "illegal norm: %llx\n",
+                                (unsigned long long)std);
+                return -EINVAL;
+        }
+        v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std);
+        encoder->norm = std;
+        return 0;
+}
+
+static int adv7175_s_routing(struct v4l2_subdev *sd,
+                             u32 input, u32 output, u32 config)
+{
+        struct adv7175 *encoder = to_adv7175(sd);
+
+        /* RJ: input = 0: input is from decoder
+           input = 1: input is from ZR36060
+           input = 2: color bar */
+
+        switch (input) {
+        case 0:
+                adv7175_write(sd, 0x01, 0x00);
+
+                if (encoder->norm & V4L2_STD_NTSC)
+                        set_subcarrier_freq(sd, 1);
+
+                adv7175_write(sd, 0x0c, TR1CAPT);       /* TR1 */
+                if (encoder->norm & V4L2_STD_SECAM)
+                        adv7175_write(sd, 0x0d, 0x49);  /* Disable genlock */
+                else
+                        adv7175_write(sd, 0x0d, 0x4f);  /* Enable genlock */
+                adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+                adv7175_write(sd, 0x07, TR0MODE);
+                /*udelay(10);*/
+                break;
+
+        case 1:
+                adv7175_write(sd, 0x01, 0x00);
+
+                if (encoder->norm & V4L2_STD_NTSC)
+                        set_subcarrier_freq(sd, 0);
+
+                adv7175_write(sd, 0x0c, TR1PLAY);       /* TR1 */
+                adv7175_write(sd, 0x0d, 0x49);
+                adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+                adv7175_write(sd, 0x07, TR0MODE);
+                /* udelay(10); */
+                break;
+
+        case 2:
+                adv7175_write(sd, 0x01, 0x80);
+
+                if (encoder->norm & V4L2_STD_NTSC)
+                        set_subcarrier_freq(sd, 0);
+
+                adv7175_write(sd, 0x0d, 0x49);
+                adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+                adv7175_write(sd, 0x07, TR0MODE);
+                /* udelay(10); */
+                break;
+
+        default:
+                v4l2_dbg(1, debug, sd, "illegal input: %d\n", input);
+                return -EINVAL;
+        }
+        v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]);
+        encoder->input = input;
+        return 0;
+}
+
+static int adv7175_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7175, 0);
+}
+
+static int adv7175_s_power(struct v4l2_subdev *sd, int on)
+{
+        if (on)
+                adv7175_write(sd, 0x01, 0x00);
+        else
+                adv7175_write(sd, 0x01, 0x78);
+
+        return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops adv7175_core_ops = {
+        .g_chip_ident = adv7175_g_chip_ident,
+        .init = adv7175_init,
+        .s_power = adv7175_s_power,
+};
+
+static const struct v4l2_subdev_video_ops adv7175_video_ops = {
+        .s_std_output = adv7175_s_std_output,
+        .s_routing = adv7175_s_routing,
+};
+
+static const struct v4l2_subdev_ops adv7175_ops = {
+        .core = &adv7175_core_ops,
+        .video = &adv7175_video_ops,
+};
+
+/* ----------------------------------------------------------------------- */
+
+static int adv7175_probe(struct i2c_client *client,
+                        const struct i2c_device_id *id)
+{
+        int i;
+        struct adv7175 *encoder;
+        struct v4l2_subdev *sd;
+
+        /* Check if the adapter supports the needed features */
+        if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+                return -ENODEV;
+
+        v4l_info(client, "chip found @ 0x%x (%s)\n",
+                        client->addr << 1, client->adapter->name);
+
+        encoder = kzalloc(sizeof(struct adv7175), GFP_KERNEL);
+        if (encoder == NULL)
+                return -ENOMEM;
+        sd = &encoder->sd;
+        v4l2_i2c_subdev_init(sd, client, &adv7175_ops);
+        encoder->norm = V4L2_STD_NTSC;
+        encoder->input = 0;
+
+        i = adv7175_write_block(sd, init_common, sizeof(init_common));
+        if (i >= 0) {
+                i = adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+                i = adv7175_write(sd, 0x07, TR0MODE);
+                i = adv7175_read(sd, 0x12);
+                v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
+        }
+        if (i < 0)
+                v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
+        return 0;
+}
+
+static int adv7175_remove(struct i2c_client *client)
+{
+        struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+        v4l2_device_unregister_subdev(sd);
+        kfree(to_adv7175(sd));
+        return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct i2c_device_id adv7175_id[] = {
+        { "adv7175", 0 },
+        { "adv7176", 0 },
+        { }
+};
+MODULE_DEVICE_TABLE(i2c, adv7175_id);
+
+static struct i2c_driver adv7175_driver = {
+        .driver = {
+                .owner  = THIS_MODULE,
+                .name   = "adv7175",
+        },
+        .probe          = adv7175_probe,
+        .remove         = adv7175_remove,
+        .id_table       = adv7175_id,
+};
+
+static __init int init_adv7175(void)
+{
+        return i2c_add_driver(&adv7175_driver);
+}
+
+static __exit void exit_adv7175(void)
+{
+        i2c_del_driver(&adv7175_driver);
+}
+
+module_init(init_adv7175);
+module_exit(exit_adv7175);