[media] radio-terratec: Convert to radio-isa
Tested with v4l2-compliance, but not with actual hardware. Contact the linux-media mailinglist if you have this card! Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
8bd7ef5ae6
commit
32c518364a
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@ -363,32 +363,17 @@ config RADIO_SF16FMR2
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config RADIO_TERRATEC
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tristate "TerraTec ActiveRadio ISA Standalone"
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depends on ISA && VIDEO_V4L2
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select RADIO_ISA
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---help---
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Choose Y here if you have this FM radio card, and then fill in the
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port address below. (TODO)
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Choose Y here if you have this FM radio card.
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Note: This driver is in its early stages. Right now volume and
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frequency control and muting works at least for me, but
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unfortunately I have not found anybody who wants to use this card
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with Linux. So if it is this what YOU are trying to do right now,
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PLEASE DROP ME A NOTE!! Rolf Offermanns <rolf@offermanns.de>.
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In order to control your radio card, you will need to use programs
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that are compatible with the Video For Linux API. Information on
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this API and pointers to "v4l" programs may be found at
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<file:Documentation/video4linux/API.html>.
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Note: this driver hasn't been tested since a long time due to lack
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of hardware. If you have this hardware, then please contact the
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linux-media mailinglist.
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To compile this driver as a module, choose M here: the
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module will be called radio-terratec.
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config RADIO_TERRATEC_PORT
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hex "Terratec i/o port (normally 0x590)"
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depends on RADIO_TERRATEC=y
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default "590"
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help
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Fill in the I/O port of your TerraTec FM radio card. If unsure, go
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with the default.
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config RADIO_TRUST
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tristate "Trust FM radio card"
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depends on ISA && VIDEO_V4L2
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@ -16,11 +16,7 @@
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* Frequency control is done digitally -- ie out(port,encodefreq(95.8));
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* Volume Control is done digitally
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*
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* there is a I2C controlled RDS decoder (SAA6588) onboard, which i would like to support someday
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* (as soon i have understand how to get started :)
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* If you can help me out with that, please contact me!!
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*
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*
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* Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@cisco.com>
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* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
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*/
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@ -32,41 +28,21 @@
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#include <linux/io.h> /* outb, outb_p */
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include "radio-isa.h"
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MODULE_AUTHOR("R.OFFERMANNS & others");
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MODULE_AUTHOR("R. Offermans & others");
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MODULE_DESCRIPTION("A driver for the TerraTec ActiveRadio Standalone radio card.");
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MODULE_LICENSE("GPL");
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MODULE_VERSION("0.0.3");
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MODULE_VERSION("0.1.99");
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#ifndef CONFIG_RADIO_TERRATEC_PORT
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#define CONFIG_RADIO_TERRATEC_PORT 0x590
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#endif
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static int io = CONFIG_RADIO_TERRATEC_PORT;
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/* Note: there seems to be only one possible port (0x590), but without
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hardware this is hard to verify. For now, this is the only one we will
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support. */
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static int io = 0x590;
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static int radio_nr = -1;
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module_param(io, int, 0);
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MODULE_PARM_DESC(io, "I/O address of the TerraTec ActiveRadio card (0x590 or 0x591)");
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module_param(radio_nr, int, 0);
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static struct v4l2_queryctrl radio_qctrl[] = {
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{
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.id = V4L2_CID_AUDIO_MUTE,
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.name = "Mute",
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.minimum = 0,
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.maximum = 1,
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.default_value = 1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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},{
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.id = V4L2_CID_AUDIO_VOLUME,
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.name = "Volume",
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.minimum = 0,
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.maximum = 0xff,
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.step = 1,
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.default_value = 0xff,
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.type = V4L2_CTRL_TYPE_INTEGER,
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}
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};
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module_param(radio_nr, int, 0444);
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MODULE_PARM_DESC(radio_nr, "Radio device number");
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#define WRT_DIS 0x00
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#define CLK_OFF 0x00
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@ -76,63 +52,24 @@ static struct v4l2_queryctrl radio_qctrl[] = {
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#define CLK_ON 0x08
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#define WRT_EN 0x10
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struct terratec
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static struct radio_isa_card *terratec_alloc(void)
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{
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struct v4l2_device v4l2_dev;
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struct video_device vdev;
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int io;
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int curvol;
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unsigned long curfreq;
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int muted;
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struct mutex lock;
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};
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return kzalloc(sizeof(struct radio_isa_card), GFP_KERNEL);
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}
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static struct terratec terratec_card;
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/* local things */
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static void tt_write_vol(struct terratec *tt, int volume)
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static int terratec_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol)
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{
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int i;
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volume = volume + (volume * 32); /* change both channels */
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mutex_lock(&tt->lock);
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if (mute)
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vol = 0;
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vol = vol + (vol * 32); /* change both channels */
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for (i = 0; i < 8; i++) {
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if (volume & (0x80 >> i))
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outb(0x80, tt->io + 1);
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if (vol & (0x80 >> i))
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outb(0x80, isa->io + 1);
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else
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outb(0x00, tt->io + 1);
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outb(0x00, isa->io + 1);
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}
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mutex_unlock(&tt->lock);
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}
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static void tt_mute(struct terratec *tt)
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{
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tt->muted = 1;
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tt_write_vol(tt, 0);
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}
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static int tt_setvol(struct terratec *tt, int vol)
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{
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if (vol == tt->curvol) { /* requested volume = current */
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if (tt->muted) { /* user is unmuting the card */
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tt->muted = 0;
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tt_write_vol(tt, vol); /* enable card */
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}
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return 0;
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}
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if (vol == 0) { /* volume = 0 means mute the card */
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tt_write_vol(tt, 0); /* "turn off card" by setting vol to 0 */
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tt->curvol = vol; /* track the volume state! */
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return 0;
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}
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tt->muted = 0;
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tt_write_vol(tt, vol);
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tt->curvol = vol;
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return 0;
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}
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@ -140,20 +77,15 @@ static int tt_setvol(struct terratec *tt, int vol)
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/* this is the worst part in this driver */
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/* many more or less strange things are going on here, but hey, it works :) */
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static int tt_setfreq(struct terratec *tt, unsigned long freq1)
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static int terratec_s_frequency(struct radio_isa_card *isa, u32 freq)
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{
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int freq;
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int i;
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int p;
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int temp;
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long rest;
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unsigned char buffer[25]; /* we have to bit shift 25 registers */
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mutex_lock(&tt->lock);
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tt->curfreq = freq1;
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freq = freq1 / 160; /* convert the freq. to a nice to handle value */
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freq = freq / 160; /* convert the freq. to a nice to handle value */
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memset(buffer, 0, sizeof(buffer));
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rest = freq * 10 + 10700; /* I once had understood what is going on here */
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@ -175,239 +107,61 @@ static int tt_setfreq(struct terratec *tt, unsigned long freq1)
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for (i = 24; i > -1; i--) { /* bit shift the values to the radiocard */
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if (buffer[i] == 1) {
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outb(WRT_EN | DATA, tt->io);
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outb(WRT_EN | DATA | CLK_ON, tt->io);
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outb(WRT_EN | DATA, tt->io);
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outb(WRT_EN | DATA, isa->io);
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outb(WRT_EN | DATA | CLK_ON, isa->io);
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outb(WRT_EN | DATA, isa->io);
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} else {
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outb(WRT_EN | 0x00, tt->io);
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outb(WRT_EN | 0x00 | CLK_ON, tt->io);
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outb(WRT_EN | 0x00, isa->io);
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outb(WRT_EN | 0x00 | CLK_ON, isa->io);
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}
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}
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outb(0x00, tt->io);
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mutex_unlock(&tt->lock);
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outb(0x00, isa->io);
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return 0;
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}
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static int tt_getsigstr(struct terratec *tt)
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static u32 terratec_g_signal(struct radio_isa_card *isa)
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{
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if (inb(tt->io) & 2) /* bit set = no signal present */
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return 0;
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return 1; /* signal present */
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/* bit set = no signal present */
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return (inb(isa->io) & 2) ? 0 : 0xffff;
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}
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static int vidioc_querycap(struct file *file, void *priv,
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struct v4l2_capability *v)
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{
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strlcpy(v->driver, "radio-terratec", sizeof(v->driver));
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strlcpy(v->card, "ActiveRadio", sizeof(v->card));
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strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
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v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
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return 0;
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}
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static int vidioc_g_tuner(struct file *file, void *priv,
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struct v4l2_tuner *v)
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{
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struct terratec *tt = video_drvdata(file);
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if (v->index > 0)
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return -EINVAL;
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strlcpy(v->name, "FM", sizeof(v->name));
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v->type = V4L2_TUNER_RADIO;
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v->rangelow = 87 * 16000;
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v->rangehigh = 108 * 16000;
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v->rxsubchans = V4L2_TUNER_SUB_MONO;
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v->capability = V4L2_TUNER_CAP_LOW;
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v->audmode = V4L2_TUNER_MODE_MONO;
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v->signal = 0xFFFF * tt_getsigstr(tt);
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return 0;
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}
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static int vidioc_s_tuner(struct file *file, void *priv,
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struct v4l2_tuner *v)
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{
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return v->index ? -EINVAL : 0;
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}
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static int vidioc_s_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f)
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{
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struct terratec *tt = video_drvdata(file);
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if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
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return -EINVAL;
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tt_setfreq(tt, f->frequency);
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return 0;
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}
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static int vidioc_g_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f)
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{
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struct terratec *tt = video_drvdata(file);
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if (f->tuner != 0)
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return -EINVAL;
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f->type = V4L2_TUNER_RADIO;
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f->frequency = tt->curfreq;
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return 0;
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}
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static int vidioc_queryctrl(struct file *file, void *priv,
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struct v4l2_queryctrl *qc)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
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if (qc->id && qc->id == radio_qctrl[i].id) {
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memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
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return 0;
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}
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}
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return -EINVAL;
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}
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static int vidioc_g_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct terratec *tt = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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if (tt->muted)
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ctrl->value = 1;
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else
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ctrl->value = 0;
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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ctrl->value = tt->curvol * 6554;
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return 0;
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}
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return -EINVAL;
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}
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static int vidioc_s_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct terratec *tt = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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if (ctrl->value)
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tt_mute(tt);
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else
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tt_setvol(tt,tt->curvol);
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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tt_setvol(tt,ctrl->value);
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return 0;
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}
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return -EINVAL;
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}
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static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
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{
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*i = 0;
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return 0;
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}
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static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
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{
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return i ? -EINVAL : 0;
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}
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static int vidioc_g_audio(struct file *file, void *priv,
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struct v4l2_audio *a)
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{
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a->index = 0;
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strlcpy(a->name, "Radio", sizeof(a->name));
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a->capability = V4L2_AUDCAP_STEREO;
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return 0;
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}
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static int vidioc_s_audio(struct file *file, void *priv,
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struct v4l2_audio *a)
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{
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return a->index ? -EINVAL : 0;
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}
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static const struct v4l2_file_operations terratec_fops = {
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.owner = THIS_MODULE,
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.unlocked_ioctl = video_ioctl2,
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static const struct radio_isa_ops terratec_ops = {
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.alloc = terratec_alloc,
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.s_mute_volume = terratec_s_mute_volume,
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.s_frequency = terratec_s_frequency,
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.g_signal = terratec_g_signal,
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};
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static const struct v4l2_ioctl_ops terratec_ioctl_ops = {
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.vidioc_querycap = vidioc_querycap,
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.vidioc_g_tuner = vidioc_g_tuner,
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.vidioc_s_tuner = vidioc_s_tuner,
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.vidioc_g_frequency = vidioc_g_frequency,
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.vidioc_s_frequency = vidioc_s_frequency,
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.vidioc_queryctrl = vidioc_queryctrl,
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.vidioc_g_ctrl = vidioc_g_ctrl,
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.vidioc_s_ctrl = vidioc_s_ctrl,
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.vidioc_g_audio = vidioc_g_audio,
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.vidioc_s_audio = vidioc_s_audio,
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.vidioc_g_input = vidioc_g_input,
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.vidioc_s_input = vidioc_s_input,
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static const int terratec_ioports[] = { 0x590 };
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static struct radio_isa_driver terratec_driver = {
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.driver = {
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.match = radio_isa_match,
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.probe = radio_isa_probe,
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.remove = radio_isa_remove,
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.driver = {
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.name = "radio-terratec",
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},
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},
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.io_params = &io,
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.radio_nr_params = &radio_nr,
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.io_ports = terratec_ioports,
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.num_of_io_ports = ARRAY_SIZE(terratec_ioports),
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.region_size = 2,
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.card = "TerraTec ActiveRadio",
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.ops = &terratec_ops,
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.has_stereo = true,
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.max_volume = 10,
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};
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static int __init terratec_init(void)
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{
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struct terratec *tt = &terratec_card;
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struct v4l2_device *v4l2_dev = &tt->v4l2_dev;
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int res;
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strlcpy(v4l2_dev->name, "terratec", sizeof(v4l2_dev->name));
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tt->io = io;
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if (tt->io == -1) {
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v4l2_err(v4l2_dev, "you must set an I/O address with io=0x590 or 0x591\n");
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return -EINVAL;
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}
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if (!request_region(tt->io, 2, "terratec")) {
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v4l2_err(v4l2_dev, "port 0x%x already in use\n", io);
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return -EBUSY;
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}
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res = v4l2_device_register(NULL, v4l2_dev);
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if (res < 0) {
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release_region(tt->io, 2);
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v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
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return res;
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}
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strlcpy(tt->vdev.name, v4l2_dev->name, sizeof(tt->vdev.name));
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tt->vdev.v4l2_dev = v4l2_dev;
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tt->vdev.fops = &terratec_fops;
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tt->vdev.ioctl_ops = &terratec_ioctl_ops;
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tt->vdev.release = video_device_release_empty;
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video_set_drvdata(&tt->vdev, tt);
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||||
|
||||
mutex_init(&tt->lock);
|
||||
|
||||
/* mute card - prevents noisy bootups */
|
||||
tt_write_vol(tt, 0);
|
||||
|
||||
if (video_register_device(&tt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
|
||||
v4l2_device_unregister(&tt->v4l2_dev);
|
||||
release_region(tt->io, 2);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
v4l2_info(v4l2_dev, "TERRATEC ActivRadio Standalone card driver.\n");
|
||||
return 0;
|
||||
return isa_register_driver(&terratec_driver.driver, 1);
|
||||
}
|
||||
|
||||
static void __exit terratec_exit(void)
|
||||
{
|
||||
struct terratec *tt = &terratec_card;
|
||||
struct v4l2_device *v4l2_dev = &tt->v4l2_dev;
|
||||
|
||||
video_unregister_device(&tt->vdev);
|
||||
v4l2_device_unregister(&tt->v4l2_dev);
|
||||
release_region(tt->io, 2);
|
||||
v4l2_info(v4l2_dev, "TERRATEC ActivRadio Standalone card driver unloaded.\n");
|
||||
isa_unregister_driver(&terratec_driver.driver);
|
||||
}
|
||||
|
||||
module_init(terratec_init);
|
||||
|
|
|
|||
Loading…
Reference in New Issue