diff options
Diffstat (limited to 'v4l_experimental/pvrusb2/pvrusb2-tuner.c')
| -rw-r--r-- | v4l_experimental/pvrusb2/pvrusb2-tuner.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/v4l_experimental/pvrusb2/pvrusb2-tuner.c b/v4l_experimental/pvrusb2/pvrusb2-tuner.c new file mode 100644 index 000000000..ffbc66294 --- /dev/null +++ b/v4l_experimental/pvrusb2/pvrusb2-tuner.c @@ -0,0 +1,154 @@ +/* + * + * $Id: pvrusb2-tuner.c,v 1.1 2005/11/14 13:31:24 mchehab Exp $ + * + * Copyright (C) 2005 Mike Isely <isely@pobox.com> + * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include "pvrusb2.h" +#include "pvrusb2-util.h" +#include "pvrusb2-tuner.h" +#include "pvrusb2-hdw-internal.h" +#include "pvrusb2-i2c.h" +#include "pvrusb2-debug.h" +#include "compat.h" +#include <linux/videodev.h> +#include <media/tuner.h> + +#define PVR_STD_I2C_ADDR 0x43 + +static int tuner[PVR_NUM] = { [0 ... PVR_NUM-1] = -1 }; + +module_param_array(tuner, int, NULL, 0444); +MODULE_PARM_DESC(tuner,"specify installed tuner type"); + +static u32 pvr_tbl_standard[] = { + [PVR2_CVAL_VIDEOSTANDARD_PAL_BG] = 0x00d47009, /* PVR_STD_PAL_BG */ + [PVR2_CVAL_VIDEOSTANDARD_PAL_I] = 0x00d4700a, /* PVR_STD_PAL_I */ + [PVR2_CVAL_VIDEOSTANDARD_PAL_DK] = 0x00d4700b, /* PVR_STD_PAL_DK */ + [PVR2_CVAL_VIDEOSTANDARD_SECAM_L] = 0x00c4100b, /* PVR_STD_SECAM */ + [PVR2_CVAL_VIDEOSTANDARD_NTSC_M] = 0x00163044 /* PVR_STD_NTSC */ +}; + +#define trace_tuner(...) pvr2_trace(PVR2_TRACE_TUNER,__VA_ARGS__) + +int pvr2_tuner_get_default_type(struct pvr2_hdw *hdw) +{ + int unit_number = hdw->unit_number; + int tp = -1; + if ((unit_number >= 0) && (unit_number < PVR_NUM)) { + tp = tuner[unit_number]; + } + if (tp < 0) return -EINVAL; + hdw->tuner_type = tp; + return 0; +} + +int pvr2_tuner_set_freq(struct pvr2_hdw *hdw) +{ + int stat; + struct v4l2_frequency freq; + freq.frequency = hdw->controls[PVR2_CID_FREQUENCY].value / 62500; + freq.tuner = 0; + freq.type = V4L2_TUNER_ANALOG_TV; + trace_tuner("pvr2_tuner_set_freq(%d)",freq.frequency); + stat = pvr2_i2c_tuner_cmd(hdw,VIDIOC_S_FREQUENCY,&freq); + if (stat < 0) return stat; + /* This kicks the audio controller... */ + stat = pvr2_i2c_msp3400_cmd(hdw,VIDIOCSFREQ,0); + if (stat < 0) return stat; + hdw->subsys_enabled_mask |= PVR2_SUBSYS_TUNER_CFG_FREQ; + return 0; +} + +int pvr2_tuner_set_type(struct pvr2_hdw *hdw) +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 13) + struct tuner_setup setup; +#endif + trace_tuner("pvr2_tuner_set_type(%d)",hdw->tuner_type); + if (((int)(hdw->tuner_type)) < 0) { + trace_tuner("tuner type not set yet"); + return 0; + } +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 13) + setup.addr = ADDR_UNSET; + setup.type = hdw->tuner_type; + setup.mode_mask = T_RADIO | T_ANALOG_TV; + /* We may really want mode_mask to be T_ANALOG_TV for now */ + return pvr2_i2c_tuner_cmd(hdw,TUNER_SET_TYPE_ADDR,&setup); +#else + return pvr2_i2c_tuner_cmd(hdw,TUNER_SET_TYPE,&hdw->tuner_type); +#endif +} + +int pvr2_tuner_set_standard(struct pvr2_hdw *hdw) +{ + struct i2c_msg msg[1]; + u8 buff [4]; + v4l2_std_id vs; + int cvstd = hdw->controls[PVR2_CID_VIDEOSTANDARD].value; + + trace_tuner("pvr2_tuner_set_standard(%d)", + hdw->controls[PVR2_CID_VIDEOSTANDARD].value); + + /* FIXME: Might be tuner dependant ? Need more hardware info... */ + /* MCI 15-May-2005: I have absolutely no idea what this is doing + or who it is talking to. */ + PVR2_DECOMPOSE_BE( + buff, 0,pvr_tbl_standard[cvstd]); + msg[0].addr = PVR_STD_I2C_ADDR; + msg[0].flags = 0; + msg[0].len = sizeof(buff); + msg[0].buf = buff; + i2c_transfer(&hdw->i2c_adap,msg,sizeof(msg)/sizeof(msg[0])); + + /* Also tell tuner.ko about the video standard. */ + switch (cvstd) { + default: + case PVR2_CVAL_VIDEOSTANDARD_NTSC_M: + vs = V4L2_STD_NTSC; + break; + case PVR2_CVAL_VIDEOSTANDARD_SECAM_L: + vs = V4L2_STD_SECAM; + break; + case PVR2_CVAL_VIDEOSTANDARD_PAL_BG: + vs = V4L2_STD_PAL_BG; + break; + case PVR2_CVAL_VIDEOSTANDARD_PAL_I: + vs = V4L2_STD_PAL_I; + break; + case PVR2_CVAL_VIDEOSTANDARD_PAL_DK: + vs = V4L2_STD_PAL_DK; + break; + } + pvr2_i2c_tuner_cmd(hdw,VIDIOC_S_STD,&vs); + + hdw->subsys_enabled_mask |= PVR2_SUBSYS_TUNER_CFG_STD; + return 0; +} + +/* + Stuff for Emacs to see, in order to encourage consistent editing style: + *** Local Variables: *** + *** mode: c *** + *** fill-column: 70 *** + *** tab-width: 8 *** + *** c-basic-offset: 8 *** + *** End: *** + */ |