diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-13 14:03:59 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-13 14:03:59 -0700 |
commit | cf2fa66055d718ae13e62451bb546505f63906a2 (patch) | |
tree | e206d3f04e74a34e9aa88d21af6c26eea21d4121 /drivers/media/video/pvrusb2/pvrusb2-i2c-core.c | |
parent | 4501a466f28788485604ee42641d7a5fe7258d16 (diff) | |
parent | 57f51dbc45f65f7ee1e8c8f77200bb8000e3e271 (diff) |
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (313 commits)
V4L/DVB (9186): Added support for Prof 7300 DVB-S/S2 cards
V4L/DVB (9185): S2API: Ensure we have a reasonable ROLLOFF default
V4L/DVB (9184): cx24116: Change the default SNR units back to percentage by default.
V4L/DVB (9183): S2API: Return error of the caller provides 0 commands.
V4L/DVB (9182): S2API: Added support for DTV_HIERARCHY
V4L/DVB (9181): S2API: Add support fot DTV_GUARD_INTERVAL and DTV_TRANSMISSION_MODE
V4L/DVB (9180): S2API: Added support for DTV_CODE_RATE_HP/LP
V4L/DVB (9179): S2API: frontend.h cleanup
V4L/DVB (9178): cx24116: Add module parameter to return SNR as ESNO.
V4L/DVB (9177): S2API: Change _8PSK / _16APSK to PSK_8 and APSK_16
V4L/DVB (9176): Add support for DvbWorld USB cards with STV0288 demodulator.
V4L/DVB (9175): Remove NULL pointer in stb6000 driver.
V4L/DVB (9174): Allow custom inittab for ST STV0288 demodulator.
V4L/DVB (9173): S2API: Remove the hardcoded command limit during validation
V4L/DVB (9172): S2API: Bugfix related to DVB-S / DVB-S2 tuning for the legacy API.
V4L/DVB (9171): S2API: Stop an OOPS if illegal commands are dumped in S2API.
V4L/DVB (9170): cx24116: Sanity checking to data input via S2API to the cx24116 demod.
V4L/DVB (9169): uvcvideo: Support two new Bison Electronics webcams.
V4L/DVB (9168): Add support for MSI TV@nywhere Plus remote
V4L/DVB: v4l2-dev: remove duplicated #include
...
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-i2c-core.c')
-rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-i2c-core.c | 42 |
1 files changed, 31 insertions, 11 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c index e600576a6c4..d6a35401fef 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c +++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c @@ -827,7 +827,7 @@ static unsigned int pvr2_i2c_client_describe(struct pvr2_i2c_client *cp, if ((detail & PVR2_I2C_DETAIL_CTLMASK) && cp->ctl_mask) { unsigned int idx; unsigned long msk,sm; - int spcfl; + bcnt = scnprintf(buf,maxlen," ["); ccnt += bcnt; buf += bcnt; maxlen -= bcnt; sm = 0; @@ -891,6 +891,7 @@ static int pvr2_i2c_attach_inform(struct i2c_client *client) INIT_LIST_HEAD(&cp->list); cp->client = client; mutex_lock(&hdw->i2c_list_lock); do { + hdw->cropcap_stale = !0; list_add_tail(&cp->list,&hdw->i2c_clients); hdw->i2c_pend_types |= PVR2_I2C_PEND_DETECT; } while (0); mutex_unlock(&hdw->i2c_list_lock); @@ -905,6 +906,7 @@ static int pvr2_i2c_detach_inform(struct i2c_client *client) unsigned long amask = 0; int foundfl = 0; mutex_lock(&hdw->i2c_list_lock); do { + hdw->cropcap_stale = !0; list_for_each_entry_safe(cp, ncp, &hdw->i2c_clients, list) { if (cp->client == client) { trace_i2c("pvr2_i2c_detach" @@ -946,22 +948,32 @@ static struct i2c_adapter pvr2_i2c_adap_template = { .client_unregister = pvr2_i2c_detach_inform, }; -static void do_i2c_scan(struct pvr2_hdw *hdw) + +/* Return true if device exists at given address */ +static int do_i2c_probe(struct pvr2_hdw *hdw, int addr) { struct i2c_msg msg[1]; - int i,rc; + int rc; msg[0].addr = 0; msg[0].flags = I2C_M_RD; msg[0].len = 0; msg[0].buf = NULL; - printk("%s: i2c scan beginning\n",hdw->name); + msg[0].addr = addr; + rc = i2c_transfer(&hdw->i2c_adap, msg, ARRAY_SIZE(msg)); + return rc == 1; +} + +static void do_i2c_scan(struct pvr2_hdw *hdw) +{ + int i; + printk(KERN_INFO "%s: i2c scan beginning\n", hdw->name); for (i = 0; i < 128; i++) { - msg[0].addr = i; - rc = i2c_transfer(&hdw->i2c_adap,msg, ARRAY_SIZE(msg)); - if (rc != 1) continue; - printk("%s: i2c scan: found device @ 0x%x\n",hdw->name,i); + if (do_i2c_probe(hdw, i)) { + printk(KERN_INFO "%s: i2c scan: found device @ 0x%x\n", + hdw->name, i); + } } - printk("%s: i2c scan done.\n",hdw->name); + printk(KERN_INFO "%s: i2c scan done.\n", hdw->name); } void pvr2_i2c_core_init(struct pvr2_hdw *hdw) @@ -980,8 +992,6 @@ void pvr2_i2c_core_init(struct pvr2_hdw *hdw) hdw->i2c_func[0x18] = i2c_black_hole; } else if (ir_mode[hdw->unit_number] == 1) { if (hdw->hdw_desc->ir_scheme == PVR2_IR_SCHEME_24XXX) { - /* This comment is present PURELY to get - checkpatch.pl to STFU. Lovely, eh? */ hdw->i2c_func[0x18] = i2c_24xxx_ir; } } @@ -1006,6 +1016,16 @@ void pvr2_i2c_core_init(struct pvr2_hdw *hdw) mutex_init(&hdw->i2c_list_lock); hdw->i2c_linked = !0; i2c_add_adapter(&hdw->i2c_adap); + if (hdw->i2c_func[0x18] == i2c_24xxx_ir) { + /* Probe for a different type of IR receiver on this + device. If present, disable the emulated IR receiver. */ + if (do_i2c_probe(hdw, 0x71)) { + pvr2_trace(PVR2_TRACE_INFO, + "Device has newer IR hardware;" + " disabling unneeded virtual IR device"); + hdw->i2c_func[0x18] = NULL; + } + } if (i2c_scan) do_i2c_scan(hdw); } |