diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-11 19:57:16 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-11 19:57:16 (GMT) |
commit | 57a44415beee38d1afcd8e1b5fad66f3414d2dac (patch) | |
tree | 365eada15165e37e153b6d304142db16f251438b /drivers/media/video/pvrusb2/pvrusb2-i2c-core.c | |
parent | 2a383c63ff933a496f19d6559ab54ac14871b7f3 (diff) | |
parent | bbe2486fe3bd6c7cffaf4123b7e86a55c209ed44 (diff) | |
download | linux-fsl-qoriq-57a44415beee38d1afcd8e1b5fad66f3414d2dac.tar.xz |
Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (44 commits)
V4L/DVB (5571): V4l1-compat: Make VIDIOCSPICT return errors in a useful way
V4L/DVB (5624): Radio-maestro.c cleanup
V4L/DVB (5623): Dsbr100.c Replace usb_dsbr100_do_ioctl to use video_ioctl2
V4L/DVB (5622): Radio-zoltrix.c cleanup
V4L/DVB (5621): Radio-cadet.c Replace cadet_do_ioctl to use video_ioctl2
V4L/DVB (5619): Dvb-usb: fix typo
V4L/DVB (5618): Cx88: Drop the generic i2c client from cx88-vp3054-i2c
V4L/DVB (5617): V4L2: videodev, allow debugging
V4L/DVB (5614): M920x: Disable second adapter on LifeView TV Walker Twin
V4L/DVB (5613): M920x: loosen up 80-col limit
V4L/DVB (5612): M920x: rename function prefixes from m9206_foo to m920x_foo
V4L/DVB (5611): M920x: replace deb_rc with deb
V4L/DVB (5610): M920x: remove duplicated code
V4L/DVB (5609): M920x: group like functions together
V4L/DVB (5608): M920x: various whitespace cleanups
V4L/DVB (5607): M920x: Initial support for devices likely manufactured by Dposh
V4L/DVB (5606): M920x: add "c-basic-offset: 8" to help emacs to enforce tabbing
V4L/DVB (5605): M920x: Add support for LifeView TV Walker Twin
V4L/DVB (5603): V4L: Prevent queueing queued buffers.
V4L/DVB (5602): Enable DiSEqC in Starbox II (vp7021a)
...
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-i2c-core.c')
-rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-i2c-core.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c index 58fc3c7..6786d3c 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c +++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c @@ -23,6 +23,7 @@ #include "pvrusb2-hdw-internal.h" #include "pvrusb2-debug.h" #include "pvrusb2-fx2-cmd.h" +#include "pvrusb2.h" #define trace_i2c(...) pvr2_trace(PVR2_TRACE_I2C,__VA_ARGS__) @@ -38,6 +39,10 @@ static unsigned int i2c_scan = 0; module_param(i2c_scan, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(i2c_scan,"scan i2c bus at insmod time"); +static int ir_mode[PVR_NUM] = { [0 ... PVR_NUM-1] = 1 }; +module_param_array(ir_mode, int, NULL, 0444); +MODULE_PARM_DESC(ir_mode,"specify: 0=disable IR reception, 1=normal IR"); + static unsigned int pvr2_i2c_client_describe(struct pvr2_i2c_client *cp, unsigned int detail, char *buf,unsigned int maxlen); @@ -273,6 +278,15 @@ static int i2c_hack_wm8775(struct pvr2_hdw *hdw, return pvr2_i2c_basic_op(hdw,i2c_addr,wdata,wlen,rdata,rlen); } +/* This is an entry point designed to always fail any attempt to perform a + transfer. We use this to cause certain I2C addresses to not be + probed. */ +static int i2c_black_hole(struct pvr2_hdw *hdw, + u8 i2c_addr,u8 *wdata,u16 wlen,u8 *rdata,u16 rlen) +{ + return -EIO; +} + /* This is a special entry point that is entered if an I2C operation is attempted to a cx25840 chip on model 24xxx hardware. This chip can sometimes wedge itself. Worse still, when this happens msp3400 can @@ -994,10 +1008,17 @@ void pvr2_i2c_core_init(struct pvr2_hdw *hdw) } /* However, deal with various special cases for 24xxx hardware. */ + if (ir_mode[hdw->unit_number] == 0) { + printk(KERN_INFO "%s: IR disabled\n",hdw->name); + hdw->i2c_func[0x18] = i2c_black_hole; + } else if (ir_mode[hdw->unit_number] == 1) { + if (hdw->hdw_type == PVR2_HDW_TYPE_24XXX) { + hdw->i2c_func[0x18] = i2c_24xxx_ir; + } + } if (hdw->hdw_type == PVR2_HDW_TYPE_24XXX) { hdw->i2c_func[0x1b] = i2c_hack_wm8775; hdw->i2c_func[0x44] = i2c_hack_cx25840; - hdw->i2c_func[0x18] = i2c_24xxx_ir; } // Configure the adapter and set up everything else related to it. |