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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-07 10:49:05 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-07 10:49:05 +0200
commit0b8e74c6f44094189dbe78baf4101acc7570c6af (patch)
tree6440561d09fb71ba5928664604ec92f29940be6b /sound/i2c/other
parentMerge tag 'for-v3.7' of git://git.infradead.org/users/cbou/linux-pstore (diff)
parentMerge branch 'staging/for_v3.7' into v4l_for_linus (diff)
downloadlinux-0b8e74c6f44094189dbe78baf4101acc7570c6af.tar.xz
linux-0b8e74c6f44094189dbe78baf4101acc7570c6af.zip
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab: "The first part of the media updates for Kernel 3.7. This series contain: - A major tree renaming patch series: now, drivers are organized internally by their used bus, instead of by V4L2 and/or DVB API, providing a cleaner driver location for hybrid drivers that implement both APIs, and allowing to cleanup the Kconfig items and make them more intuitive for the end user; - Media Kernel developers are typically very lazy with their duties of keeping the MAINTAINERS entries for their drivers updated. As now the tree is more organized, we're doing an effort to add/update those entries for the drivers that aren't currently orphan; - Several DVB USB drivers got moved to a new DVB USB v2 core; the new core fixes several bugs (as the existing one that got bitroted). Now, suspend/resume finally started to work fine (at least with some devices - we should expect more work with regards to it); - added multistream support for DVB-T2, and unified the API for DVB-S2 and ISDB-S. Backward binary support is preserved; - as usual, a few new drivers, some V4L2 core improvements and lots of drivers improvements and fixes. There are some points to notice on this series: 1) you should expect a trivial merge conflict on your tree, with the removal of Documentation/feature-removal-schedule.txt: this series would be adding two additional entries there. I opted to not rebase it due to this recent change; 2) With regards to the PCTV 520e udev-related breakage, I opted to fix it in a way that the patches can be backported to 3.5 even without your firmware fix patch. This way, Greg doesn't need to rush backporting your patch (as there are still the firmware cache and firmware path customization issues to be addressed there). I'll send later a patch (likely after the end of the merge window) reverting the rest of the DRX-K async firmware request, fully restoring its original behaviour to allow media drivers to initialize everything serialized as before for 3.7 and upper. 3) I'm planning to work on this weekend to test the DMABUF patches for V4L2. The patches are on my queue for several Kernel cycles, but, up to now, there is/was no way to test the series locally. I have some concerns about this particular changeset with regards to security issues, and with regards to the replacement of the old VIDIOC_OVERLAY ioctl's that is broken on modern systems, due to GPU drivers change. The Overlay API allows direct PCI2PCI transfers from a media capture card into the GPU framebuffer, but its API is crappy. Also, the only existing X11 driver that implements it requires a XV extension that is not available anymore on modern drivers. The DMABUF can do the same thing, but with it is promising to be a properly-designed API. If I can successfully test this series and be happy with it, I should be asking you to pull them next week." * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (717 commits) em28xx: regression fix: use DRX-K sync firmware requests on em28xx drxk: allow loading firmware synchrousnously em28xx: Make all em28xx extensions to be initialized asynchronously [media] tda18271: properly report read errors in tda18271_get_id [media] tda18271: delay IR & RF calibration until init() if delay_cal is set [media] MAINTAINERS: add Michael Krufky as tda827x maintainer [media] MAINTAINERS: add Michael Krufky as tda8290 maintainer [media] MAINTAINERS: add Michael Krufky as cxusb maintainer [media] MAINTAINERS: add Michael Krufky as lg2160 maintainer [media] MAINTAINERS: add Michael Krufky as lgdt3305 maintainer [media] MAINTAINERS: add Michael Krufky as mxl111sf maintainer [media] MAINTAINERS: add Michael Krufky as mxl5007t maintainer [media] MAINTAINERS: add Michael Krufky as tda18271 maintainer [media] s5p-tv: Report only multi-plane capabilities in vidioc_querycap [media] s5p-mfc: Fix misplaced return statement in s5p_mfc_suspend() [media] exynos-gsc: Add missing static storage class specifiers [media] exynos-gsc: Remove <linux/version.h> header file inclusion [media] s5p-fimc: Fix incorrect condition in fimc_lite_reqbufs() [media] s5p-tv: Fix potential NULL pointer dereference error [media] s5k6aa: Fix possible NULL pointer dereference ...
Diffstat (limited to 'sound/i2c/other')
-rw-r--r--sound/i2c/other/tea575x-tuner.c205
1 files changed, 167 insertions, 38 deletions
diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c
index d14edb7d6484..3c6c1e3226f3 100644
--- a/sound/i2c/other/tea575x-tuner.c
+++ b/sound/i2c/other/tea575x-tuner.c
@@ -37,9 +37,6 @@ MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Routines for control of TEA5757/5759 Philips AM/FM radio tuner chips");
MODULE_LICENSE("GPL");
-#define FREQ_LO ((tea->tea5759 ? 760 : 875) * 1600U)
-#define FREQ_HI ((tea->tea5759 ? 910 : 1080) * 1600U)
-
/*
* definitions
*/
@@ -50,8 +47,8 @@ MODULE_LICENSE("GPL");
#define TEA575X_BIT_BAND_MASK (3<<20)
#define TEA575X_BIT_BAND_FM (0<<20)
#define TEA575X_BIT_BAND_MW (1<<20)
-#define TEA575X_BIT_BAND_LW (1<<21)
-#define TEA575X_BIT_BAND_SW (1<<22)
+#define TEA575X_BIT_BAND_LW (2<<20)
+#define TEA575X_BIT_BAND_SW (3<<20)
#define TEA575X_BIT_PORT_0 (1<<19) /* user bit */
#define TEA575X_BIT_PORT_1 (1<<18) /* user bit */
#define TEA575X_BIT_SEARCH_MASK (3<<16) /* search level */
@@ -62,6 +59,37 @@ MODULE_LICENSE("GPL");
#define TEA575X_BIT_DUMMY (1<<15) /* buffer */
#define TEA575X_BIT_FREQ_MASK 0x7fff
+enum { BAND_FM, BAND_FM_JAPAN, BAND_AM };
+
+static const struct v4l2_frequency_band bands[] = {
+ {
+ .type = V4L2_TUNER_RADIO,
+ .index = 0,
+ .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
+ V4L2_TUNER_CAP_FREQ_BANDS,
+ .rangelow = 87500 * 16,
+ .rangehigh = 108000 * 16,
+ .modulation = V4L2_BAND_MODULATION_FM,
+ },
+ {
+ .type = V4L2_TUNER_RADIO,
+ .index = 0,
+ .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
+ V4L2_TUNER_CAP_FREQ_BANDS,
+ .rangelow = 76000 * 16,
+ .rangehigh = 91000 * 16,
+ .modulation = V4L2_BAND_MODULATION_FM,
+ },
+ {
+ .type = V4L2_TUNER_RADIO,
+ .index = 1,
+ .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_FREQ_BANDS,
+ .rangelow = 530 * 16,
+ .rangehigh = 1710 * 16,
+ .modulation = V4L2_BAND_MODULATION_AM,
+ },
+};
+
/*
* lowlevel part
*/
@@ -133,16 +161,29 @@ static u32 snd_tea575x_val_to_freq(struct snd_tea575x *tea, u32 val)
if (freq == 0)
return freq;
- /* freq *= 12.5 */
- freq *= 125;
- freq /= 10;
- /* crystal fixup */
- if (tea->tea5759)
- freq += TEA575X_FMIF;
- else
+ switch (tea->band) {
+ case BAND_FM:
+ /* freq *= 12.5 */
+ freq *= 125;
+ freq /= 10;
+ /* crystal fixup */
freq -= TEA575X_FMIF;
+ break;
+ case BAND_FM_JAPAN:
+ /* freq *= 12.5 */
+ freq *= 125;
+ freq /= 10;
+ /* crystal fixup */
+ freq += TEA575X_FMIF;
+ break;
+ case BAND_AM:
+ /* crystal fixup */
+ freq -= TEA575X_AMIF;
+ break;
+ }
- return clamp(freq * 16, FREQ_LO, FREQ_HI); /* from kHz */
+ return clamp(freq * 16, bands[tea->band].rangelow,
+ bands[tea->band].rangehigh); /* from kHz */
}
static u32 snd_tea575x_get_freq(struct snd_tea575x *tea)
@@ -150,21 +191,37 @@ static u32 snd_tea575x_get_freq(struct snd_tea575x *tea)
return snd_tea575x_val_to_freq(tea, snd_tea575x_read(tea));
}
-static void snd_tea575x_set_freq(struct snd_tea575x *tea)
+void snd_tea575x_set_freq(struct snd_tea575x *tea)
{
- u32 freq = tea->freq;
+ u32 freq = tea->freq / 16; /* to kHz */
+ u32 band = 0;
- freq /= 16; /* to kHz */
- /* crystal fixup */
- if (tea->tea5759)
- freq -= TEA575X_FMIF;
- else
+ switch (tea->band) {
+ case BAND_FM:
+ band = TEA575X_BIT_BAND_FM;
+ /* crystal fixup */
freq += TEA575X_FMIF;
- /* freq /= 12.5 */
- freq *= 10;
- freq /= 125;
+ /* freq /= 12.5 */
+ freq *= 10;
+ freq /= 125;
+ break;
+ case BAND_FM_JAPAN:
+ band = TEA575X_BIT_BAND_FM;
+ /* crystal fixup */
+ freq -= TEA575X_FMIF;
+ /* freq /= 12.5 */
+ freq *= 10;
+ freq /= 125;
+ break;
+ case BAND_AM:
+ band = TEA575X_BIT_BAND_MW;
+ /* crystal fixup */
+ freq += TEA575X_AMIF;
+ break;
+ }
- tea->val &= ~TEA575X_BIT_FREQ_MASK;
+ tea->val &= ~(TEA575X_BIT_FREQ_MASK | TEA575X_BIT_BAND_MASK);
+ tea->val |= band;
tea->val |= freq & TEA575X_BIT_FREQ_MASK;
snd_tea575x_write(tea, tea->val);
tea->freq = snd_tea575x_val_to_freq(tea, tea->val);
@@ -190,23 +247,57 @@ static int vidioc_querycap(struct file *file, void *priv,
return 0;
}
+static int vidioc_enum_freq_bands(struct file *file, void *priv,
+ struct v4l2_frequency_band *band)
+{
+ struct snd_tea575x *tea = video_drvdata(file);
+ int index;
+
+ if (band->tuner != 0)
+ return -EINVAL;
+
+ switch (band->index) {
+ case 0:
+ if (tea->tea5759)
+ index = BAND_FM_JAPAN;
+ else
+ index = BAND_FM;
+ break;
+ case 1:
+ if (tea->has_am) {
+ index = BAND_AM;
+ break;
+ }
+ /* Fall through */
+ default:
+ return -EINVAL;
+ }
+
+ *band = bands[index];
+ if (!tea->cannot_read_data)
+ band->capability |= V4L2_TUNER_CAP_HWSEEK_BOUNDED;
+
+ return 0;
+}
+
static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *v)
{
struct snd_tea575x *tea = video_drvdata(file);
+ struct v4l2_frequency_band band_fm = { 0, };
if (v->index > 0)
return -EINVAL;
snd_tea575x_read(tea);
+ vidioc_enum_freq_bands(file, priv, &band_fm);
- strcpy(v->name, "FM");
+ memset(v, 0, sizeof(*v));
+ strlcpy(v->name, tea->has_am ? "FM/AM" : "FM", sizeof(v->name));
v->type = V4L2_TUNER_RADIO;
- v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
- if (!tea->cannot_read_data)
- v->capability |= V4L2_TUNER_CAP_HWSEEK_BOUNDED;
- v->rangelow = FREQ_LO;
- v->rangehigh = FREQ_HI;
+ v->capability = band_fm.capability;
+ v->rangelow = tea->has_am ? bands[BAND_AM].rangelow : band_fm.rangelow;
+ v->rangehigh = band_fm.rangehigh;
v->rxsubchans = tea->stereo ? V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
v->audmode = (tea->val & TEA575X_BIT_MONO) ?
V4L2_TUNER_MODE_MONO : V4L2_TUNER_MODE_STEREO;
@@ -218,13 +309,17 @@ static int vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *v)
{
struct snd_tea575x *tea = video_drvdata(file);
+ u32 orig_val = tea->val;
if (v->index)
return -EINVAL;
tea->val &= ~TEA575X_BIT_MONO;
if (v->audmode == V4L2_TUNER_MODE_MONO)
tea->val |= TEA575X_BIT_MONO;
- snd_tea575x_write(tea, tea->val);
+ /* Only apply changes if currently tuning FM */
+ if (tea->band != BAND_AM && tea->val != orig_val)
+ snd_tea575x_set_freq(tea);
+
return 0;
}
@@ -248,24 +343,56 @@ static int vidioc_s_frequency(struct file *file, void *priv,
if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
return -EINVAL;
- tea->val &= ~TEA575X_BIT_SEARCH;
- tea->freq = clamp(f->frequency, FREQ_LO, FREQ_HI);
+ if (tea->has_am && f->frequency < (20000 * 16))
+ tea->band = BAND_AM;
+ else if (tea->tea5759)
+ tea->band = BAND_FM_JAPAN;
+ else
+ tea->band = BAND_FM;
+
+ tea->freq = clamp(f->frequency, bands[tea->band].rangelow,
+ bands[tea->band].rangehigh);
snd_tea575x_set_freq(tea);
return 0;
}
static int vidioc_s_hw_freq_seek(struct file *file, void *fh,
- struct v4l2_hw_freq_seek *a)
+ const struct v4l2_hw_freq_seek *a)
{
struct snd_tea575x *tea = video_drvdata(file);
unsigned long timeout;
- int i;
+ int i, spacing;
if (tea->cannot_read_data)
return -ENOTTY;
if (a->tuner || a->wrap_around)
return -EINVAL;
+ if (file->f_flags & O_NONBLOCK)
+ return -EWOULDBLOCK;
+
+ if (a->rangelow || a->rangehigh) {
+ for (i = 0; i < ARRAY_SIZE(bands); i++) {
+ if ((i == BAND_FM && tea->tea5759) ||
+ (i == BAND_FM_JAPAN && !tea->tea5759) ||
+ (i == BAND_AM && !tea->has_am))
+ continue;
+ if (bands[i].rangelow == a->rangelow &&
+ bands[i].rangehigh == a->rangehigh)
+ break;
+ }
+ if (i == ARRAY_SIZE(bands))
+ return -EINVAL; /* No matching band found */
+ if (i != tea->band) {
+ tea->band = i;
+ tea->freq = clamp(tea->freq, bands[i].rangelow,
+ bands[i].rangehigh);
+ snd_tea575x_set_freq(tea);
+ }
+ }
+
+ spacing = (tea->band == BAND_AM) ? 5 : 50; /* kHz */
+
/* clear the frequency, HW will fill it in */
tea->val &= ~TEA575X_BIT_FREQ_MASK;
tea->val |= TEA575X_BIT_SEARCH;
@@ -297,10 +424,10 @@ static int vidioc_s_hw_freq_seek(struct file *file, void *fh,
if (freq == 0) /* shouldn't happen */
break;
/*
- * if we moved by less than 50 kHz, or in the wrong
- * direction, continue seeking
+ * if we moved by less than the spacing, or in the
+ * wrong direction, continue seeking
*/
- if (abs(tea->freq - freq) < 16 * 50 ||
+ if (abs(tea->freq - freq) < 16 * spacing ||
(a->seek_upward && freq < tea->freq) ||
(!a->seek_upward && freq > tea->freq)) {
snd_tea575x_write(tea, tea->val);
@@ -344,6 +471,7 @@ static const struct v4l2_ioctl_ops tea575x_ioctl_ops = {
.vidioc_g_frequency = vidioc_g_frequency,
.vidioc_s_frequency = vidioc_s_frequency,
.vidioc_s_hw_freq_seek = vidioc_s_hw_freq_seek,
+ .vidioc_enum_freq_bands = vidioc_enum_freq_bands,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
@@ -446,3 +574,4 @@ module_exit(alsa_tea575x_module_exit)
EXPORT_SYMBOL(snd_tea575x_init);
EXPORT_SYMBOL(snd_tea575x_exit);
+EXPORT_SYMBOL(snd_tea575x_set_freq);