From 622b828ab795580903e79acb33fb44f5c9ce7b0f Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 5 Oct 2009 10:48:17 -0300 Subject: [PATCH] V4L/DVB (13238): v4l2_subdev: rename tuner s_standby operation to core s_power Upcoming I2C v4l2_subdev drivers need a way to control the subdevice power state from the core. This use case is already partially covered by the tuner s_standby operation, but no way to explicitly come back from the standby state is available. Rename the tuner s_standby operation to core s_power, and fix tuner drivers accordingly. The tuner core will call s_power(0) instead of s_standby(). No explicit call to s_power(1) is required for tuners as they are supposed to wake up from standby automatically. [mchehab@redhat.com: CodingStyle fix] Signed-off-by: Laurent Pinchart Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/au0828/au0828-video.c | 2 +- drivers/media/video/cx231xx/cx231xx-video.c | 2 +- drivers/media/video/cx23885/cx23885-core.c | 2 +- drivers/media/video/cx23885/cx23885-dvb.c | 2 +- drivers/media/video/cx88/cx88-cards.c | 2 +- drivers/media/video/cx88/cx88-dvb.c | 2 +- drivers/media/video/cx88/cx88-video.c | 2 +- drivers/media/video/em28xx/em28xx-cards.c | 2 +- drivers/media/video/em28xx/em28xx-video.c | 2 +- drivers/media/video/saa7134/saa7134-core.c | 2 +- drivers/media/video/saa7134/saa7134-video.c | 2 +- drivers/media/video/tuner-core.c | 9 ++++++--- include/media/v4l2-subdev.h | 7 ++++--- 13 files changed, 21 insertions(+), 17 deletions(-) diff --git a/drivers/media/video/au0828/au0828-video.c b/drivers/media/video/au0828/au0828-video.c index 51527d7b55a7..1485aee18d58 100644 --- a/drivers/media/video/au0828/au0828-video.c +++ b/drivers/media/video/au0828/au0828-video.c @@ -830,7 +830,7 @@ static int au0828_v4l2_close(struct file *filp) au0828_uninit_isoc(dev); /* Save some power by putting tuner to sleep */ - v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_standby); + v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); /* When close the device, set the usb intf0 into alt0 to free USB bandwidth */ diff --git a/drivers/media/video/cx231xx/cx231xx-video.c b/drivers/media/video/cx231xx/cx231xx-video.c index 36503725d973..d095aa0d6d19 100644 --- a/drivers/media/video/cx231xx/cx231xx-video.c +++ b/drivers/media/video/cx231xx/cx231xx-video.c @@ -2106,7 +2106,7 @@ static int cx231xx_v4l2_close(struct file *filp) } /* Save some power by putting tuner to sleep */ - call_all(dev, tuner, s_standby); + call_all(dev, core, s_power, 0); /* do this before setting alternate! */ cx231xx_uninit_isoc(dev); diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c index d6e41db500ef..e34a4ec4a2cd 100644 --- a/drivers/media/video/cx23885/cx23885-core.c +++ b/drivers/media/video/cx23885/cx23885-core.c @@ -919,7 +919,7 @@ static int cx23885_dev_setup(struct cx23885_dev *dev) cx23885_i2c_register(&dev->i2c_bus[1]); cx23885_i2c_register(&dev->i2c_bus[2]); cx23885_card_setup(dev); - call_all(dev, tuner, s_standby); + call_all(dev, core, s_power, 0); cx23885_ir_init(dev); if (cx23885_boards[dev->board].porta == CX23885_ANALOG_VIDEO) { diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c index 4d439f2c4abc..f4f046cd81a5 100644 --- a/drivers/media/video/cx23885/cx23885-dvb.c +++ b/drivers/media/video/cx23885/cx23885-dvb.c @@ -920,7 +920,7 @@ static int dvb_register(struct cx23885_tsport *port) fe0->dvb.frontend->callback = cx23885_tuner_callback; /* Put the analog decoder in standby to keep it quiet */ - call_all(dev, tuner, s_standby); + call_all(dev, core, s_power, 0); if (fe0->dvb.frontend->ops.analog_ops.standby) fe0->dvb.frontend->ops.analog_ops.standby(fe0->dvb.frontend); diff --git a/drivers/media/video/cx88/cx88-cards.c b/drivers/media/video/cx88/cx88-cards.c index 33be6369871a..7330a2d70439 100644 --- a/drivers/media/video/cx88/cx88-cards.c +++ b/drivers/media/video/cx88/cx88-cards.c @@ -3267,7 +3267,7 @@ static void cx88_card_setup(struct cx88_core *core) ctl.fname); call_all(core, tuner, s_config, &xc2028_cfg); } - call_all(core, tuner, s_standby); + call_all(core, core, s_power, 0); } /* ------------------------------------------------------------------ */ diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c index d9e402b25b56..9df71d0244a8 100644 --- a/drivers/media/video/cx88/cx88-dvb.c +++ b/drivers/media/video/cx88/cx88-dvb.c @@ -1170,7 +1170,7 @@ static int dvb_register(struct cx8802_dev *dev) fe1->dvb.frontend->ops.ts_bus_ctrl = cx88_dvb_bus_ctrl; /* Put the analog decoder in standby to keep it quiet */ - call_all(core, tuner, s_standby); + call_all(core, core, s_power, 0); /* register everything */ return videobuf_dvb_register_bus(&dev->frontends, THIS_MODULE, dev, diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c index 57e6b1241090..d7e8fcee559c 100644 --- a/drivers/media/video/cx88/cx88-video.c +++ b/drivers/media/video/cx88/cx88-video.c @@ -935,7 +935,7 @@ static int video_release(struct file *file) mutex_lock(&dev->core->lock); if(atomic_dec_and_test(&dev->core->users)) - call_all(dev->core, tuner, s_standby); + call_all(dev->core, core, s_power, 0); mutex_unlock(&dev->core->lock); return 0; diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 6c7cbbc59e1c..1e1937070738 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -2658,7 +2658,7 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, em28xx_init_extension(dev); /* Save some power by putting tuner to sleep */ - v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_standby); + v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); return 0; diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index 3a1dfb7726f8..fbe536f092f9 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -2225,7 +2225,7 @@ static int em28xx_v4l2_close(struct file *filp) } /* Save some power by putting tuner to sleep */ - v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_standby); + v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); /* do this before setting alternate! */ em28xx_uninit_isoc(dev); diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c index f87757fccc72..9a5df930885b 100644 --- a/drivers/media/video/saa7134/saa7134-core.c +++ b/drivers/media/video/saa7134/saa7134-core.c @@ -1032,7 +1032,7 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev, saa7134_irq_video_signalchange(dev); if (TUNER_ABSENT != dev->tuner_type) - saa_call_all(dev, tuner, s_standby); + saa_call_all(dev, core, s_power, 0); /* register v4l devices */ if (saa7134_no_overlay > 0) diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c index da26f476a302..35f8daa3a359 100644 --- a/drivers/media/video/saa7134/saa7134-video.c +++ b/drivers/media/video/saa7134/saa7134-video.c @@ -1499,7 +1499,7 @@ static int video_release(struct file *file) saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0); saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0); - saa_call_all(dev, tuner, s_standby); + saa_call_all(dev, core, s_power, 0); if (fh->radio) saa_call_all(dev, core, ioctl, RDS_CMD_CLOSE, &cmd); diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c index aba92e2313d8..50f6db5cd50b 100644 --- a/drivers/media/video/tuner-core.c +++ b/drivers/media/video/tuner-core.c @@ -752,14 +752,17 @@ static int tuner_s_radio(struct v4l2_subdev *sd) return 0; } -static int tuner_s_standby(struct v4l2_subdev *sd) +static int tuner_s_power(struct v4l2_subdev *sd, int on) { struct tuner *t = to_tuner(sd); struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; + if (on) + return 0; + tuner_dbg("Putting tuner to sleep\n"); - if (check_mode(t, "s_standby") == -EINVAL) + if (check_mode(t, "s_power") == -EINVAL) return 0; t->mode = T_STANDBY; if (analog_ops->standby) @@ -961,6 +964,7 @@ static int tuner_command(struct i2c_client *client, unsigned cmd, void *arg) static const struct v4l2_subdev_core_ops tuner_core_ops = { .log_status = tuner_log_status, .s_std = tuner_s_std, + .s_power = tuner_s_power, }; static const struct v4l2_subdev_tuner_ops tuner_tuner_ops = { @@ -971,7 +975,6 @@ static const struct v4l2_subdev_tuner_ops tuner_tuner_ops = { .g_frequency = tuner_g_frequency, .s_type_addr = tuner_s_type_addr, .s_config = tuner_s_config, - .s_standby = tuner_s_standby, }; static const struct v4l2_subdev_ops tuner_ops = { diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index ecc2818938b3..88c13d6f7912 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -106,6 +106,9 @@ struct v4l2_decode_vbi_line { s_gpio: set GPIO pins. Very simple right now, might need to be extended with a direction argument if needed. + + s_power: puts subdevice in power saving mode (on == 0) or normal operation + mode (on == 1). */ struct v4l2_subdev_core_ops { int (*g_chip_ident)(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip); @@ -128,6 +131,7 @@ struct v4l2_subdev_core_ops { int (*g_register)(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg); int (*s_register)(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg); #endif + int (*s_power)(struct v4l2_subdev *sd, int on); }; /* s_mode: switch the tuner to a specific tuner mode. Replacement of s_radio. @@ -137,8 +141,6 @@ struct v4l2_subdev_core_ops { s_type_addr: sets tuner type and its I2C addr. s_config: sets tda9887 specific stuff, like port1, port2 and qss - - s_standby: puts tuner on powersaving state, disabling it, except for i2c. */ struct v4l2_subdev_tuner_ops { int (*s_mode)(struct v4l2_subdev *sd, enum v4l2_tuner_type); @@ -151,7 +153,6 @@ struct v4l2_subdev_tuner_ops { int (*s_modulator)(struct v4l2_subdev *sd, struct v4l2_modulator *vm); int (*s_type_addr)(struct v4l2_subdev *sd, struct tuner_setup *type); int (*s_config)(struct v4l2_subdev *sd, const struct v4l2_priv_tun_config *config); - int (*s_standby)(struct v4l2_subdev *sd); }; /* s_clock_freq: set the frequency (in Hz) of the audio clock output. -- 2.11.0