diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-hdw.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 88604365777c3..3d8cd0daf6a93 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -24,6 +24,7 @@ #include <linux/slab.h> #include <linux/firmware.h> #include <linux/videodev2.h> +#include <media/v4l2-common.h> #include <asm/semaphore.h> #include "pvrusb2.h" #include "pvrusb2-std.h" @@ -3131,6 +3132,42 @@ static int pvr2_hdw_get_eeprom_addr(struct pvr2_hdw *hdw) } +int pvr2_hdw_register_access(struct pvr2_hdw *hdw, + u32 chip_id,unsigned long reg_id, + int setFl,u32 *val_ptr) +{ +#ifdef CONFIG_VIDEO_ADV_DEBUG + struct list_head *item; + struct pvr2_i2c_client *cp; + struct v4l2_register req; + int stat = 0; + int okFl = 0; + + req.i2c_id = chip_id; + req.reg = reg_id; + if (setFl) req.val = *val_ptr; + mutex_lock(&hdw->i2c_list_lock); do { + list_for_each(item,&hdw->i2c_clients) { + cp = list_entry(item,struct pvr2_i2c_client,list); + if (cp->client->driver->id != chip_id) continue; + stat = pvr2_i2c_client_cmd( + cp,(setFl ? VIDIOC_INT_S_REGISTER : + VIDIOC_INT_G_REGISTER),&req); + if (!setFl) *val_ptr = req.val; + okFl = !0; + break; + } + } while (0); mutex_unlock(&hdw->i2c_list_lock); + if (okFl) { + return stat; + } + return -EINVAL; +#else + return -ENOSYS; +#endif +} + + /* Stuff for Emacs to see, in order to encourage consistent editing style: *** Local Variables: *** |