On Wednesday, February 08, 2012 20:57:43 Ondrej Zary wrote: > On Wednesday 08 February 2012 08:29:25 Hans Verkuil wrote: > > On Tuesday, February 07, 2012 23:20:19 Ondrej Zary wrote: > > > On Sunday 05 February 2012 14:17:05 Hans Verkuil wrote: > > > > These patches improve the tea575x-tuner module to make it up to date > > > > with the latest V4L2 frameworks. > > > > > > > > The maxiradio driver has also been converted to use the tea575x-tuner > > > > and I've used that card to test it. > > > > > > > > Unfortunately, this card can't read the data pin, so the new hardware > > > > seek functionality has been tested only partially (yes, it seeks, but > > > > when it finds a channel I can't read back the frequency). > > > > > > > > Ondrej, are you able to test these patches for the sound cards that use > > > > this tea575x tuner? > > > > > > > > Note that these two patches rely on other work that I did and that > > > > hasn't been merged yet. So it is best to pull from my git tree: > > > > > > > > http://git.linuxtv.org/hverkuil/media_tree.git/shortlog/refs/heads/radi > > > >o-pc i2 > > > > > > > > You can use the v4l-utils repository > > > > (http://git.linuxtv.org/v4l-utils.git) to test the drivers: the > > > > v4l2-compliance test should succeed and with v4l2-ctl you can test the > > > > hardware seek: > > > > > > > > To seek down: > > > > > > > > v4l2-ctl -d /dev/radio0 --freq-seek=dir=0 > > > > > > > > To seek up: > > > > > > > > v4l2-ctl -d /dev/radio0 --freq-seek=dir=1 > > > > > > > > To do the compliance test: > > > > > > > > v4l2-compliance -r /dev/radio0 > > > > > > It seems to work (tested with SF64-PCR - snd_fm801) but the seek is > > > severely broken. Reading the frequency immediately after seek does not > > > work, it always returns the old value (haven't found a delay that works). > > > Reading it later (copied back snd_tea575x_get_freq function) works. The > > > chip seeks randomly up or down, ignoring UP/DOWN flag and often stops at > > > wrong place (only noise) or even outside the FM range. > > > > > > So I strongly suggest not to enable this (mis-)feature. The HW seems to > > > be completely broken (unless there's some weird bug in the code). > > > > Well, it seemed like a good idea at the time :-) I'll remove this > > 'feature', it's really not worth our time to try and make this work for > > these old cards. > > > > I wonder if you are able to test the ISA radio-sf16fmr2.c driver? I'm not > > sure if you have the hardware, but since I changed this driver to use the > > proper isa kernel framework I'd like to have this tested if possible. > > The driver works, provided that linux/slab.h is included. It oopses on rmmod > because dev_set_drvdata() call is missing from init. > This patch fixes all of that and also removes (now useless) static fmr2_card: Thanks! I'll apply the changes for the final pull request. That's probably going to be in a week or two. BTW, do you perhaps have a mirosound pcm20 card (or know someone who does)? I'd like to update the radio-miropcm20 driver as well and it would be nice if my changes can be tested. Regards, Hans > > --- a/drivers/media/radio/radio-sf16fmr2.c > +++ b/drivers/media/radio/radio-sf16fmr2.c > @@ -9,6 +9,7 @@ > #include <linux/delay.h> > #include <linux/module.h> /* Modules */ > #include <linux/init.h> /* Initdata */ > +#include <linux/slab.h> > #include <linux/ioport.h> /* request_region */ > #include <linux/io.h> /* outb, outb_p */ > #include <linux/isa.h> > @@ -32,7 +33,6 @@ struct fmr2 { > > /* the port is hardwired so no need to support multiple cards */ > #define FMR2_PORT 0x384 > -static struct fmr2 fmr2_card; > > /* TEA575x tuner pins */ > #define STR_DATA (1 << 0) > @@ -188,7 +188,7 @@ static int fmr2_tea_ext_init(struct snd_tea575x *tea) > > static int __init fmr2_probe(struct device *pdev, unsigned int dev) > { > - struct fmr2 *fmr2 = &fmr2_card; > + struct fmr2 *fmr2; > int err; > > fmr2 = kzalloc(sizeof(*fmr2), GFP_KERNEL); > @@ -229,6 +229,7 @@ static int __init fmr2_probe(struct device *pdev, unsigned int dev) > } > > printk(KERN_INFO "radio-sf16fmr2: SF16-FMR2 radio card at 0x%x.\n", fmr2->io); > + dev_set_drvdata(pdev, fmr2); > return 0; > } > > > > > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
