Added missing tegra files.HEADmaster

1 files changed, 463 insertions, 0 deletions

diff --git a/drivers/media/video/adv7180.c b/drivers/media/video/adv7180.c
new file mode 100644
index 00000000000..d2138d06bca
--- /dev/null
+++ b/drivers/media/video/adv7180.c
@@ -0,0 +1,463 @@
+/*
+ * adv7180.c Analog Devices ADV7180 video decoder driver
+ * Copyright (c) 2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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/init.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <media/v4l2-ioctl.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
+#include <linux/mutex.h>
+
+#define DRIVER_NAME "adv7180"
+
+#define ADV7180_INPUT_CONTROL_REG                       0x00
+#define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM    0x00
+#define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM_PED 0x10
+#define ADV7180_INPUT_CONTROL_AD_PAL_N_NTSC_J_SECAM     0x20
+#define ADV7180_INPUT_CONTROL_AD_PAL_N_NTSC_M_SECAM     0x30
+#define ADV7180_INPUT_CONTROL_NTSC_J                    0x40
+#define ADV7180_INPUT_CONTROL_NTSC_M                    0x50
+#define ADV7180_INPUT_CONTROL_PAL60                     0x60
+#define ADV7180_INPUT_CONTROL_NTSC_443                  0x70
+#define ADV7180_INPUT_CONTROL_PAL_BG                    0x80
+#define ADV7180_INPUT_CONTROL_PAL_N                     0x90
+#define ADV7180_INPUT_CONTROL_PAL_M                     0xa0
+#define ADV7180_INPUT_CONTROL_PAL_M_PED                 0xb0
+#define ADV7180_INPUT_CONTROL_PAL_COMB_N                0xc0
+#define ADV7180_INPUT_CONTROL_PAL_COMB_N_PED            0xd0
+#define ADV7180_INPUT_CONTROL_PAL_SECAM                 0xe0
+#define ADV7180_INPUT_CONTROL_PAL_SECAM_PED             0xf0
+
+#define ADV7180_EXTENDED_OUTPUT_CONTROL_REG             0x04
+#define ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS         0xC5
+
+#define ADV7180_AUTODETECT_ENABLE_REG                   0x07
+#define ADV7180_AUTODETECT_DEFAULT                      0x7f
+
+#define ADV7180_ADI_CTRL_REG                            0x0e
+#define ADV7180_ADI_CTRL_IRQ_SPACE                      0x20
+
+#define ADV7180_STATUS1_REG                             0x10
+#define ADV7180_STATUS1_IN_LOCK         0x01
+#define ADV7180_STATUS1_AUTOD_MASK      0x70
+#define ADV7180_STATUS1_AUTOD_NTSM_M_J  0x00
+#define ADV7180_STATUS1_AUTOD_NTSC_4_43 0x10
+#define ADV7180_STATUS1_AUTOD_PAL_M     0x20
+#define ADV7180_STATUS1_AUTOD_PAL_60    0x30
+#define ADV7180_STATUS1_AUTOD_PAL_B_G   0x40
+#define ADV7180_STATUS1_AUTOD_SECAM     0x50
+#define ADV7180_STATUS1_AUTOD_PAL_COMB  0x60
+#define ADV7180_STATUS1_AUTOD_SECAM_525 0x70
+
+#define ADV7180_IDENT_REG 0x11
+#define ADV7180_ID_7180 0x18
+
+#define ADV7180_ICONF1_ADI              0x40
+#define ADV7180_ICONF1_ACTIVE_LOW       0x01
+#define ADV7180_ICONF1_PSYNC_ONLY       0x10
+#define ADV7180_ICONF1_ACTIVE_TO_CLR    0xC0
+
+#define ADV7180_IRQ1_LOCK       0x01
+#define ADV7180_IRQ1_UNLOCK     0x02
+#define ADV7180_ISR1_ADI        0x42
+#define ADV7180_ICR1_ADI        0x43
+#define ADV7180_IMR1_ADI        0x44
+#define ADV7180_IMR2_ADI        0x48
+#define ADV7180_IRQ3_AD_CHANGE  0x08
+#define ADV7180_ISR3_ADI        0x4A
+#define ADV7180_ICR3_ADI        0x4B
+#define ADV7180_IMR3_ADI        0x4C
+#define ADV7180_IMR4_ADI        0x50
+
+struct adv7180_state {
+        struct v4l2_subdev      sd;
+        struct work_struct      work;
+        struct mutex            mutex; /* mutual excl. when accessing chip */
+        int                     irq;
+        v4l2_std_id             curr_norm;
+        bool                    autodetect;
+};
+
+static v4l2_std_id adv7180_std_to_v4l2(u8 status1)
+{
+        switch (status1 & ADV7180_STATUS1_AUTOD_MASK) {
+        case ADV7180_STATUS1_AUTOD_NTSM_M_J:
+                return V4L2_STD_NTSC;
+        case ADV7180_STATUS1_AUTOD_NTSC_4_43:
+                return V4L2_STD_NTSC_443;
+        case ADV7180_STATUS1_AUTOD_PAL_M:
+                return V4L2_STD_PAL_M;
+        case ADV7180_STATUS1_AUTOD_PAL_60:
+                return V4L2_STD_PAL_60;
+        case ADV7180_STATUS1_AUTOD_PAL_B_G:
+                return V4L2_STD_PAL;
+        case ADV7180_STATUS1_AUTOD_SECAM:
+                return V4L2_STD_SECAM;
+        case ADV7180_STATUS1_AUTOD_PAL_COMB:
+                return V4L2_STD_PAL_Nc | V4L2_STD_PAL_N;
+        case ADV7180_STATUS1_AUTOD_SECAM_525:
+                return V4L2_STD_SECAM;
+        default:
+                return V4L2_STD_UNKNOWN;
+        }
+}
+
+static int v4l2_std_to_adv7180(v4l2_std_id std)
+{
+        if (std == V4L2_STD_PAL_60)
+                return ADV7180_INPUT_CONTROL_PAL60;
+        if (std == V4L2_STD_NTSC_443)
+                return ADV7180_INPUT_CONTROL_NTSC_443;
+        if (std == V4L2_STD_PAL_N)
+                return ADV7180_INPUT_CONTROL_PAL_N;
+        if (std == V4L2_STD_PAL_M)
+                return ADV7180_INPUT_CONTROL_PAL_M;
+        if (std == V4L2_STD_PAL_Nc)
+                return ADV7180_INPUT_CONTROL_PAL_COMB_N;
+
+        if (std & V4L2_STD_PAL)
+                return ADV7180_INPUT_CONTROL_PAL_BG;
+        if (std & V4L2_STD_NTSC)
+                return ADV7180_INPUT_CONTROL_NTSC_M;
+        if (std & V4L2_STD_SECAM)
+                return ADV7180_INPUT_CONTROL_PAL_SECAM;
+
+        return -EINVAL;
+}
+
+static u32 adv7180_status_to_v4l2(u8 status1)
+{
+        if (!(status1 & ADV7180_STATUS1_IN_LOCK))
+                return V4L2_IN_ST_NO_SIGNAL;
+
+        return 0;
+}
+
+static int __adv7180_status(struct i2c_client *client, u32 *status,
+        v4l2_std_id *std)
+{
+        int status1 = i2c_smbus_read_byte_data(client, ADV7180_STATUS1_REG);
+
+        if (status1 < 0)
+                return status1;
+
+        if (status)
+                *status = adv7180_status_to_v4l2(status1);
+        if (std)
+                *std = adv7180_std_to_v4l2(status1);
+
+        return 0;
+}
+
+static inline struct adv7180_state *to_state(struct v4l2_subdev *sd)
+{
+        return container_of(sd, struct adv7180_state, sd);
+}
+
+static int adv7180_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+        struct adv7180_state *state = to_state(sd);
+        int err = mutex_lock_interruptible(&state->mutex);
+        if (err)
+                return err;
+
+        /* when we are interrupt driven we know the state */
+        if (!state->autodetect || state->irq > 0)
+                *std = state->curr_norm;
+        else
+                err = __adv7180_status(v4l2_get_subdevdata(sd), NULL, std);
+
+        mutex_unlock(&state->mutex);
+        return err;
+}
+
+static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+        struct adv7180_state *state = to_state(sd);
+        int ret = mutex_lock_interruptible(&state->mutex);
+        if (ret)
+                return ret;
+
+        ret = __adv7180_status(v4l2_get_subdevdata(sd), status, NULL);
+        mutex_unlock(&state->mutex);
+        return ret;
+}
+
+static int adv7180_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_ADV7180, 0);
+}
+
+static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+        struct adv7180_state *state = to_state(sd);
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+        int ret = mutex_lock_interruptible(&state->mutex);
+        if (ret)
+                return ret;
+
+        /* all standards -> autodetect */
+        if (std == V4L2_STD_ALL) {
+                ret = i2c_smbus_write_byte_data(client,
+                        ADV7180_INPUT_CONTROL_REG,
+                        ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM);
+                if (ret < 0)
+                        goto out;
+
+                __adv7180_status(client, NULL, &state->curr_norm);
+                state->autodetect = true;
+        } else {
+                ret = v4l2_std_to_adv7180(std);
+                if (ret < 0)
+                        goto out;
+
+                ret = i2c_smbus_write_byte_data(client,
+                        ADV7180_INPUT_CONTROL_REG, ret);
+                if (ret < 0)
+                        goto out;
+
+                state->curr_norm = std;
+                state->autodetect = false;
+        }
+        ret = 0;
+out:
+        mutex_unlock(&state->mutex);
+        return ret;
+}
+
+static const struct v4l2_subdev_video_ops adv7180_video_ops = {
+        .querystd = adv7180_querystd,
+        .g_input_status = adv7180_g_input_status,
+};
+
+static const struct v4l2_subdev_core_ops adv7180_core_ops = {
+        .g_chip_ident = adv7180_g_chip_ident,
+        .s_std = adv7180_s_std,
+};
+
+static const struct v4l2_subdev_ops adv7180_ops = {
+        .core = &adv7180_core_ops,
+        .video = &adv7180_video_ops,
+};
+
+static void adv7180_work(struct work_struct *work)
+{
+        struct adv7180_state *state = container_of(work, struct adv7180_state,
+                work);
+        struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
+        u8 isr3;
+
+        mutex_lock(&state->mutex);
+        i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
+                ADV7180_ADI_CTRL_IRQ_SPACE);
+        isr3 = i2c_smbus_read_byte_data(client, ADV7180_ISR3_ADI);
+        /* clear */
+        i2c_smbus_write_byte_data(client, ADV7180_ICR3_ADI, isr3);
+        i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG, 0);
+
+        if (isr3 & ADV7180_IRQ3_AD_CHANGE && state->autodetect)
+                __adv7180_status(client, NULL, &state->curr_norm);
+        mutex_unlock(&state->mutex);
+
+        enable_irq(state->irq);
+}
+
+static irqreturn_t adv7180_irq(int irq, void *devid)
+{
+        struct adv7180_state *state = devid;
+
+        schedule_work(&state->work);
+
+        disable_irq_nosync(state->irq);
+
+        return IRQ_HANDLED;
+}
+
+/*
+ * Generic i2c probe
+ * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
+ */
+
+static __devinit int adv7180_probe(struct i2c_client *client,
+                        const struct i2c_device_id *id)
+{
+        struct adv7180_state *state;
+        struct v4l2_subdev *sd;
+        int ret;
+
+        /* Check if the adapter supports the needed features */
+        if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+                return -EIO;
+
+        v4l_info(client, "chip found @ 0x%02x (%s)\n",
+                        client->addr << 1, client->adapter->name);
+
+        state = kzalloc(sizeof(struct adv7180_state), GFP_KERNEL);
+        if (state == NULL) {
+                ret = -ENOMEM;
+                goto err;
+        }
+
+        state->irq = client->irq;
+        INIT_WORK(&state->work, adv7180_work);
+        mutex_init(&state->mutex);
+        state->autodetect = true;
+        sd = &state->sd;
+        v4l2_i2c_subdev_init(sd, client, &adv7180_ops);
+
+        /* Initialize adv7180 */
+        /* Enable autodetection */
+        ret = i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
+                ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM);
+        if (ret < 0)
+                goto err_unreg_subdev;
+
+        ret = i2c_smbus_write_byte_data(client, ADV7180_AUTODETECT_ENABLE_REG,
+                ADV7180_AUTODETECT_DEFAULT);
+        if (ret < 0)
+                goto err_unreg_subdev;
+
+        /* ITU-R BT.656-4 compatible */
+        ret = i2c_smbus_write_byte_data(client,
+                ADV7180_EXTENDED_OUTPUT_CONTROL_REG,
+                ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
+        if (ret < 0)
+                goto err_unreg_subdev;
+
+        /* read current norm */
+        __adv7180_status(client, NULL, &state->curr_norm);
+
+        /* register for interrupts */
+        if (state->irq > 0) {
+                ret = request_irq(state->irq, adv7180_irq, 0, DRIVER_NAME,
+                        state);
+                if (ret)
+                        goto err_unreg_subdev;
+
+                ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
+                        ADV7180_ADI_CTRL_IRQ_SPACE);
+                if (ret < 0)
+                        goto err_unreg_subdev;
+
+                /* config the Interrupt pin to be active low */
+                ret = i2c_smbus_write_byte_data(client, ADV7180_ICONF1_ADI,
+                        ADV7180_ICONF1_ACTIVE_LOW | ADV7180_ICONF1_PSYNC_ONLY);
+                if (ret < 0)
+                        goto err_unreg_subdev;
+
+                ret = i2c_smbus_write_byte_data(client, ADV7180_IMR1_ADI, 0);
+                if (ret < 0)
+                        goto err_unreg_subdev;
+
+                ret = i2c_smbus_write_byte_data(client, ADV7180_IMR2_ADI, 0);
+                if (ret < 0)
+                        goto err_unreg_subdev;
+
+                /* enable AD change interrupts interrupts */
+                ret = i2c_smbus_write_byte_data(client, ADV7180_IMR3_ADI,
+                        ADV7180_IRQ3_AD_CHANGE);
+                if (ret < 0)
+                        goto err_unreg_subdev;
+
+                ret = i2c_smbus_write_byte_data(client, ADV7180_IMR4_ADI, 0);
+                if (ret < 0)
+                        goto err_unreg_subdev;
+
+                ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
+                        0);
+                if (ret < 0)
+                        goto err_unreg_subdev;
+        }
+
+        return 0;
+
+err_unreg_subdev:
+        mutex_destroy(&state->mutex);
+        v4l2_device_unregister_subdev(sd);
+        kfree(state);
+err:
+        printk(KERN_ERR DRIVER_NAME ": Failed to probe: %d\n", ret);
+        return ret;
+}
+
+static __devexit int adv7180_remove(struct i2c_client *client)
+{
+        struct v4l2_subdev *sd = i2c_get_clientdata(client);
+        struct adv7180_state *state = to_state(sd);
+
+        if (state->irq > 0) {
+                free_irq(client->irq, state);
+                if (cancel_work_sync(&state->work)) {
+                        /*
+                         * Work was pending, therefore we need to enable
+                         * IRQ here to balance the disable_irq() done in the
+                         * interrupt handler.
+                         */
+                        enable_irq(state->irq);
+                }
+        }
+
+        mutex_destroy(&state->mutex);
+        v4l2_device_unregister_subdev(sd);
+        kfree(to_state(sd));
+        return 0;
+}
+
+static const struct i2c_device_id adv7180_id[] = {
+        {DRIVER_NAME, 0},
+        {},
+};
+
+MODULE_DEVICE_TABLE(i2c, adv7180_id);
+
+static struct i2c_driver adv7180_driver = {
+        .driver = {
+                .owner  = THIS_MODULE,
+                .name   = DRIVER_NAME,
+        },
+        .probe          = adv7180_probe,
+        .remove         = __devexit_p(adv7180_remove),
+        .id_table       = adv7180_id,
+};
+
+static __init int adv7180_init(void)
+{
+        return i2c_add_driver(&adv7180_driver);
+}
+
+static __exit void adv7180_exit(void)
+{
+        i2c_del_driver(&adv7180_driver);
+}
+
+module_init(adv7180_init);
+module_exit(adv7180_exit);
+
+MODULE_DESCRIPTION("Analog Devices ADV7180 video decoder driver");
+MODULE_AUTHOR("Mocean Laboratories");
+MODULE_LICENSE("GPL v2");
+