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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 16:23:43 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 16:42:14 -0300
commitcb7a01ac324bf2ee2c666f37ac867e4135f9785a (patch)
tree7246b915a9334d4bc823c93ba9acab65ef882678 /drivers/media/i2c/adv7180.c
parentf0af8fa4dad0839f844fd0633e1936493f6d685a (diff)
downloadvexpress-lsk-cb7a01ac324bf2ee2c666f37ac867e4135f9785a.tar.gz
[media] move i2c files into drivers/media/i2c
Move ancillary I2C drivers into drivers/media/i2c, in order to better organize them. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/i2c/adv7180.c')
-rw-r--r--drivers/media/i2c/adv7180.c667
1 files changed, 667 insertions, 0 deletions
diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
new file mode 100644
index 00000000000..45ecf8db1ea
--- /dev/null
+++ b/drivers/media/i2c/adv7180.c
@@ -0,0 +1,667 @@
+/*
+ * 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-ctrls.h>
+#include <media/v4l2-chip-ident.h>
+#include <linux/mutex.h>
+
+#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_INPUT_CONTROL_INSEL_MASK 0x0f
+
+#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
+/* Contrast */
+#define ADV7180_CON_REG 0x08 /*Unsigned */
+#define ADV7180_CON_MIN 0
+#define ADV7180_CON_DEF 128
+#define ADV7180_CON_MAX 255
+/* Brightness*/
+#define ADV7180_BRI_REG 0x0a /*Signed */
+#define ADV7180_BRI_MIN -128
+#define ADV7180_BRI_DEF 0
+#define ADV7180_BRI_MAX 127
+/* Hue */
+#define ADV7180_HUE_REG 0x0b /*Signed, inverted */
+#define ADV7180_HUE_MIN -127
+#define ADV7180_HUE_DEF 0
+#define ADV7180_HUE_MAX 128
+
+#define ADV7180_ADI_CTRL_REG 0x0e
+#define ADV7180_ADI_CTRL_IRQ_SPACE 0x20
+
+#define ADV7180_PWR_MAN_REG 0x0f
+#define ADV7180_PWR_MAN_ON 0x04
+#define ADV7180_PWR_MAN_OFF 0x24
+#define ADV7180_PWR_MAN_RES 0x80
+
+#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
+/* Saturation */
+#define ADV7180_SD_SAT_CB_REG 0xe3 /*Unsigned */
+#define ADV7180_SD_SAT_CR_REG 0xe4 /*Unsigned */
+#define ADV7180_SAT_MIN 0
+#define ADV7180_SAT_DEF 128
+#define ADV7180_SAT_MAX 255
+
+#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
+
+#define ADV7180_NTSC_V_BIT_END_REG 0xE6
+#define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND 0x4F
+
+struct adv7180_state {
+ struct v4l2_ctrl_handler ctrl_hdl;
+ 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;
+ u8 input;
+};
+#define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler, \
+ struct adv7180_state, \
+ ctrl_hdl)->sd)
+
+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_s_routing(struct v4l2_subdev *sd, u32 input,
+ u32 output, u32 config)
+{
+ struct adv7180_state *state = to_state(sd);
+ int ret = mutex_lock_interruptible(&state->mutex);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ if (ret)
+ return ret;
+
+ /* We cannot discriminate between LQFP and 40-pin LFCSP, so accept
+ * all inputs and let the card driver take care of validation
+ */
+ if ((input & ADV7180_INPUT_CONTROL_INSEL_MASK) != input)
+ goto out;
+
+ ret = i2c_smbus_read_byte_data(client, ADV7180_INPUT_CONTROL_REG);
+
+ if (ret < 0)
+ goto out;
+
+ ret &= ~ADV7180_INPUT_CONTROL_INSEL_MASK;
+ ret = i2c_smbus_write_byte_data(client,
+ ADV7180_INPUT_CONTROL_REG, ret | input);
+ state->input = input;
+out:
+ mutex_unlock(&state->mutex);
+ return ret;
+}
+
+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
+ | state->input);
+ 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 | state->input);
+ if (ret < 0)
+ goto out;
+
+ state->curr_norm = std;
+ state->autodetect = false;
+ }
+ ret = 0;
+out:
+ mutex_unlock(&state->mutex);
+ return ret;
+}
+
+static int adv7180_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct v4l2_subdev *sd = to_adv7180_sd(ctrl);
+ struct adv7180_state *state = to_state(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ int ret = mutex_lock_interruptible(&state->mutex);
+ int val;
+
+ if (ret)
+ return ret;
+ val = ctrl->val;
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ ret = i2c_smbus_write_byte_data(client, ADV7180_BRI_REG, val);
+ break;
+ case V4L2_CID_HUE:
+ /*Hue is inverted according to HSL chart */
+ ret = i2c_smbus_write_byte_data(client, ADV7180_HUE_REG, -val);
+ break;
+ case V4L2_CID_CONTRAST:
+ ret = i2c_smbus_write_byte_data(client, ADV7180_CON_REG, val);
+ break;
+ case V4L2_CID_SATURATION:
+ /*
+ *This could be V4L2_CID_BLUE_BALANCE/V4L2_CID_RED_BALANCE
+ *Let's not confuse the user, everybody understands saturation
+ */
+ ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CB_REG,
+ val);
+ if (ret < 0)
+ break;
+ ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CR_REG,
+ val);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ mutex_unlock(&state->mutex);
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops adv7180_ctrl_ops = {
+ .s_ctrl = adv7180_s_ctrl,
+};
+
+static int adv7180_init_controls(struct adv7180_state *state)
+{
+ v4l2_ctrl_handler_init(&state->ctrl_hdl, 4);
+
+ v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
+ V4L2_CID_BRIGHTNESS, ADV7180_BRI_MIN,
+ ADV7180_BRI_MAX, 1, ADV7180_BRI_DEF);
+ v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
+ V4L2_CID_CONTRAST, ADV7180_CON_MIN,
+ ADV7180_CON_MAX, 1, ADV7180_CON_DEF);
+ v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
+ V4L2_CID_SATURATION, ADV7180_SAT_MIN,
+ ADV7180_SAT_MAX, 1, ADV7180_SAT_DEF);
+ v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
+ V4L2_CID_HUE, ADV7180_HUE_MIN,
+ ADV7180_HUE_MAX, 1, ADV7180_HUE_DEF);
+ state->sd.ctrl_handler = &state->ctrl_hdl;
+ if (state->ctrl_hdl.error) {
+ int err = state->ctrl_hdl.error;
+
+ v4l2_ctrl_handler_free(&state->ctrl_hdl);
+ return err;
+ }
+ v4l2_ctrl_handler_setup(&state->ctrl_hdl);
+
+ return 0;
+}
+static void adv7180_exit_controls(struct adv7180_state *state)
+{
+ v4l2_ctrl_handler_free(&state->ctrl_hdl);
+}
+
+static const struct v4l2_subdev_video_ops adv7180_video_ops = {
+ .querystd = adv7180_querystd,
+ .g_input_status = adv7180_g_input_status,
+ .s_routing = adv7180_s_routing,
+};
+
+static const struct v4l2_subdev_core_ops adv7180_core_ops = {
+ .g_chip_ident = adv7180_g_chip_ident,
+ .s_std = adv7180_s_std,
+ .queryctrl = v4l2_subdev_queryctrl,
+ .g_ctrl = v4l2_subdev_g_ctrl,
+ .s_ctrl = v4l2_subdev_s_ctrl,
+};
+
+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;
+}
+
+static int init_device(struct i2c_client *client, struct adv7180_state *state)
+{
+ int ret;
+
+ /* Initialize adv7180 */
+ /* Enable autodetection */
+ if (state->autodetect) {
+ ret =
+ i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
+ ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM
+ | state->input);
+ if (ret < 0)
+ return ret;
+
+ ret =
+ i2c_smbus_write_byte_data(client,
+ ADV7180_AUTODETECT_ENABLE_REG,
+ ADV7180_AUTODETECT_DEFAULT);
+ if (ret < 0)
+ return ret;
+ } else {
+ ret = v4l2_std_to_adv7180(state->curr_norm);
+ if (ret < 0)
+ return ret;
+
+ ret =
+ i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
+ ret | state->input);
+ if (ret < 0)
+ return ret;
+
+ }
+ /* 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)
+ return ret;
+
+ /* Manually set V bit end position in NTSC mode */
+ ret = i2c_smbus_write_byte_data(client,
+ ADV7180_NTSC_V_BIT_END_REG,
+ ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
+ if (ret < 0)
+ return ret;
+
+ /* 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, KBUILD_MODNAME,
+ state);
+ if (ret)
+ return ret;
+
+ ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
+ ADV7180_ADI_CTRL_IRQ_SPACE);
+ if (ret < 0)
+ return ret;
+
+ /* 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)
+ return ret;
+
+ ret = i2c_smbus_write_byte_data(client, ADV7180_IMR1_ADI, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = i2c_smbus_write_byte_data(client, ADV7180_IMR2_ADI, 0);
+ if (ret < 0)
+ return ret;
+
+ /* enable AD change interrupts interrupts */
+ ret = i2c_smbus_write_byte_data(client, ADV7180_IMR3_ADI,
+ ADV7180_IRQ3_AD_CHANGE);
+ if (ret < 0)
+ return ret;
+
+ ret = i2c_smbus_write_byte_data(client, ADV7180_IMR4_ADI, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
+ 0);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+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, 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;
+ state->input = 0;
+ sd = &state->sd;
+ v4l2_i2c_subdev_init(sd, client, &adv7180_ops);
+
+ ret = adv7180_init_controls(state);
+ if (ret)
+ goto err_unreg_subdev;
+ ret = init_device(client, state);
+ if (ret)
+ goto err_free_ctrl;
+ return 0;
+
+err_free_ctrl:
+ adv7180_exit_controls(state);
+err_unreg_subdev:
+ mutex_destroy(&state->mutex);
+ v4l2_device_unregister_subdev(sd);
+ kfree(state);
+err:
+ printk(KERN_ERR KBUILD_MODNAME ": 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[] = {
+ {KBUILD_MODNAME, 0},
+ {},
+};
+
+#ifdef CONFIG_PM
+static int adv7180_suspend(struct i2c_client *client, pm_message_t state)
+{
+ int ret;
+
+ ret = i2c_smbus_write_byte_data(client, ADV7180_PWR_MAN_REG,
+ ADV7180_PWR_MAN_OFF);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
+static int adv7180_resume(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct adv7180_state *state = to_state(sd);
+ int ret;
+
+ ret = i2c_smbus_write_byte_data(client, ADV7180_PWR_MAN_REG,
+ ADV7180_PWR_MAN_ON);
+ if (ret < 0)
+ return ret;
+ ret = init_device(client, state);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+#endif
+
+MODULE_DEVICE_TABLE(i2c, adv7180_id);
+
+static struct i2c_driver adv7180_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = KBUILD_MODNAME,
+ },
+ .probe = adv7180_probe,
+ .remove = __devexit_p(adv7180_remove),
+#ifdef CONFIG_PM
+ .suspend = adv7180_suspend,
+ .resume = adv7180_resume,
+#endif
+ .id_table = adv7180_id,
+};
+
+module_i2c_driver(adv7180_driver);
+
+MODULE_DESCRIPTION("Analog Devices ADV7180 video decoder driver");
+MODULE_AUTHOR("Mocean Laboratories");
+MODULE_LICENSE("GPL v2");