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path: root/drivers/media/radio/radio-sf16fmi.c
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Diffstat (limited to 'drivers/media/radio/radio-sf16fmi.c')
-rw-r--r--drivers/media/radio/radio-sf16fmi.c206
1 files changed, 90 insertions, 116 deletions
diff --git a/drivers/media/radio/radio-sf16fmi.c b/drivers/media/radio/radio-sf16fmi.c
index 22c5743bf9d..6f4318ff0db 100644
--- a/drivers/media/radio/radio-sf16fmi.c
+++ b/drivers/media/radio/radio-sf16fmi.c
@@ -1,4 +1,4 @@
-/* SF16-FMI and SF16-FMP radio driver for Linux radio support
+/* SF16-FMI, SF16-FMP and SF16-FMD radio driver for Linux radio support
* heavily based on rtrack driver...
* (c) 1997 M. Kirkwood
* (c) 1998 Petr Vandrovec, vandrove@vc.cvut.cz
@@ -11,7 +11,7 @@
*
* Frequency control is done digitally -- ie out(port,encodefreq(95.8));
* No volume control - only mute/unmute - you have to use line volume
- * control on SB-part of SF16-FMI/SF16-FMP
+ * control on SB-part of SF16-FMI/SF16-FMP/SF16-FMD
*
* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
*/
@@ -27,9 +27,12 @@
#include <linux/io.h> /* outb, outb_p */
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include "lm7000.h"
MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
-MODULE_DESCRIPTION("A driver for the SF16-FMI and SF16-FMP radio.");
+MODULE_DESCRIPTION("A driver for the SF16-FMI, SF16-FMP and SF16-FMD radio.");
MODULE_LICENSE("GPL");
MODULE_VERSION("0.0.3");
@@ -37,16 +40,17 @@ static int io = -1;
static int radio_nr = -1;
module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the SF16-FMI or SF16-FMP card (0x284 or 0x384)");
+MODULE_PARM_DESC(io, "I/O address of the SF16-FMI/SF16-FMP/SF16-FMD card (0x284 or 0x384)");
module_param(radio_nr, int, 0);
struct fmi
{
struct v4l2_device v4l2_dev;
+ struct v4l2_ctrl_handler hdl;
struct video_device vdev;
int io;
bool mute;
- unsigned long curfreq; /* freq in kHz */
+ u32 curfreq; /* freq in kHz */
struct mutex lock;
};
@@ -54,31 +58,33 @@ static struct fmi fmi_card;
static struct pnp_dev *dev;
bool pnp_attached;
-/* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */
-/* It is only useful to give freq in interval of 800 (=0.05Mhz),
- * other bits will be truncated, e.g 92.7400016 -> 92.7, but
- * 92.7400017 -> 92.75
- */
-#define RSF16_ENCODE(x) ((x) / 800 + 214)
-#define RSF16_MINFREQ (87 * 16000)
-#define RSF16_MAXFREQ (108 * 16000)
+#define RSF16_MINFREQ (87U * 16000)
+#define RSF16_MAXFREQ (108U * 16000)
+
+#define FMI_BIT_TUN_CE (1 << 0)
+#define FMI_BIT_TUN_CLK (1 << 1)
+#define FMI_BIT_TUN_DATA (1 << 2)
+#define FMI_BIT_VOL_SW (1 << 3)
+#define FMI_BIT_TUN_STRQ (1 << 4)
-static void outbits(int bits, unsigned int data, int io)
+static void fmi_set_pins(void *handle, u8 pins)
{
- while (bits--) {
- if (data & 1) {
- outb(5, io);
- udelay(6);
- outb(7, io);
- udelay(6);
- } else {
- outb(1, io);
- udelay(6);
- outb(3, io);
- udelay(6);
- }
- data >>= 1;
- }
+ struct fmi *fmi = handle;
+ u8 bits = FMI_BIT_TUN_STRQ;
+
+ if (!fmi->mute)
+ bits |= FMI_BIT_VOL_SW;
+
+ if (pins & LM7000_DATA)
+ bits |= FMI_BIT_TUN_DATA;
+ if (pins & LM7000_CLK)
+ bits |= FMI_BIT_TUN_CLK;
+ if (pins & LM7000_CE)
+ bits |= FMI_BIT_TUN_CE;
+
+ mutex_lock(&fmi->lock);
+ outb_p(bits, fmi->io);
+ mutex_unlock(&fmi->lock);
}
static inline void fmi_mute(struct fmi *fmi)
@@ -95,20 +101,6 @@ static inline void fmi_unmute(struct fmi *fmi)
mutex_unlock(&fmi->lock);
}
-static inline int fmi_setfreq(struct fmi *fmi, unsigned long freq)
-{
- mutex_lock(&fmi->lock);
- fmi->curfreq = freq;
-
- outbits(16, RSF16_ENCODE(freq), fmi->io);
- outbits(8, 0xC0, fmi->io);
- msleep(143); /* was schedule_timeout(HZ/7) */
- mutex_unlock(&fmi->lock);
- if (!fmi->mute)
- fmi_unmute(fmi);
- return 0;
-}
-
static inline int fmi_getsigstr(struct fmi *fmi)
{
int val;
@@ -126,13 +118,22 @@ static inline int fmi_getsigstr(struct fmi *fmi)
return (res & 2) ? 0 : 0xFFFF;
}
+static void fmi_set_freq(struct fmi *fmi)
+{
+ fmi->curfreq = clamp(fmi->curfreq, RSF16_MINFREQ, RSF16_MAXFREQ);
+ /* rounding in steps of 800 to match the freq
+ that will be used */
+ lm7000_set_freq((fmi->curfreq / 800) * 800, fmi, fmi_set_pins);
+}
+
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *v)
{
strlcpy(v->driver, "radio-sf16fmi", sizeof(v->driver));
- strlcpy(v->card, "SF16-FMx radio", sizeof(v->card));
- strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
- v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
+ strlcpy(v->card, "SF16-FMI/FMP/FMD radio", sizeof(v->card));
+ strlcpy(v->bus_info, "ISA:radio-sf16fmi", sizeof(v->bus_info));
+ v->device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
+ v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS;
return 0;
}
@@ -156,24 +157,22 @@ static int vidioc_g_tuner(struct file *file, void *priv,
}
static int vidioc_s_tuner(struct file *file, void *priv,
- struct v4l2_tuner *v)
+ const struct v4l2_tuner *v)
{
return v->index ? -EINVAL : 0;
}
static int vidioc_s_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
+ const struct v4l2_frequency *f)
{
struct fmi *fmi = video_drvdata(file);
if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
return -EINVAL;
- if (f->frequency < RSF16_MINFREQ ||
- f->frequency > RSF16_MAXFREQ)
- return -EINVAL;
- /* rounding in steps of 800 to match the freq
- that will be used */
- fmi_setfreq(fmi, (f->frequency / 800) * 800);
+
+ fmi->curfreq = f->frequency;
+ fmi_set_freq(fmi);
+
return 0;
}
@@ -189,74 +188,31 @@ static int vidioc_g_frequency(struct file *file, void *priv,
return 0;
}
-static int vidioc_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *qc)
-{
- switch (qc->id) {
- case V4L2_CID_AUDIO_MUTE:
- return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
- }
- return -EINVAL;
-}
-
-static int vidioc_g_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
+static int fmi_s_ctrl(struct v4l2_ctrl *ctrl)
{
- struct fmi *fmi = video_drvdata(file);
+ struct fmi *fmi = container_of(ctrl->handler, struct fmi, hdl);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
- ctrl->value = fmi->mute;
- return 0;
- }
- return -EINVAL;
-}
-
-static int vidioc_s_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct fmi *fmi = video_drvdata(file);
-
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- if (ctrl->value)
+ if (ctrl->val)
fmi_mute(fmi);
else
fmi_unmute(fmi);
- fmi->mute = ctrl->value;
+ fmi->mute = ctrl->val;
return 0;
}
return -EINVAL;
}
-static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
-{
- *i = 0;
- return 0;
-}
-
-static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
-{
- return i ? -EINVAL : 0;
-}
-
-static int vidioc_g_audio(struct file *file, void *priv,
- struct v4l2_audio *a)
-{
- a->index = 0;
- strlcpy(a->name, "Radio", sizeof(a->name));
- a->capability = V4L2_AUDCAP_STEREO;
- return 0;
-}
-
-static int vidioc_s_audio(struct file *file, void *priv,
- struct v4l2_audio *a)
-{
- return a->index ? -EINVAL : 0;
-}
+static const struct v4l2_ctrl_ops fmi_ctrl_ops = {
+ .s_ctrl = fmi_s_ctrl,
+};
static const struct v4l2_file_operations fmi_fops = {
.owner = THIS_MODULE,
+ .open = v4l2_fh_open,
+ .release = v4l2_fh_release,
+ .poll = v4l2_ctrl_poll,
.unlocked_ioctl = video_ioctl2,
};
@@ -264,21 +220,21 @@ static const struct v4l2_ioctl_ops fmi_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_g_tuner = vidioc_g_tuner,
.vidioc_s_tuner = vidioc_s_tuner,
- .vidioc_g_audio = vidioc_g_audio,
- .vidioc_s_audio = vidioc_s_audio,
- .vidioc_g_input = vidioc_g_input,
- .vidioc_s_input = vidioc_s_input,
.vidioc_g_frequency = vidioc_g_frequency,
.vidioc_s_frequency = vidioc_s_frequency,
- .vidioc_queryctrl = vidioc_queryctrl,
- .vidioc_g_ctrl = vidioc_g_ctrl,
- .vidioc_s_ctrl = vidioc_s_ctrl,
+ .vidioc_log_status = v4l2_ctrl_log_status,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
/* ladis: this is my card. does any other types exist? */
-static struct isapnp_device_id id_table[] __devinitdata = {
+static struct isapnp_device_id id_table[] = {
+ /* SF16-FMI */
{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad10), 0},
+ /* SF16-FMD */
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
+ ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad12), 0},
{ ISAPNP_CARD_END, },
};
@@ -318,6 +274,7 @@ static int __init fmi_init(void)
{
struct fmi *fmi = &fmi_card;
struct v4l2_device *v4l2_dev = &fmi->v4l2_dev;
+ struct v4l2_ctrl_handler *hdl = &fmi->hdl;
int res, i;
int probe_ports[] = { 0, 0x284, 0x384 };
@@ -370,19 +327,35 @@ static int __init fmi_init(void)
return res;
}
+ v4l2_ctrl_handler_init(hdl, 1);
+ v4l2_ctrl_new_std(hdl, &fmi_ctrl_ops,
+ V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
+ v4l2_dev->ctrl_handler = hdl;
+ if (hdl->error) {
+ res = hdl->error;
+ v4l2_err(v4l2_dev, "Could not register controls\n");
+ v4l2_ctrl_handler_free(hdl);
+ v4l2_device_unregister(v4l2_dev);
+ return res;
+ }
+
strlcpy(fmi->vdev.name, v4l2_dev->name, sizeof(fmi->vdev.name));
fmi->vdev.v4l2_dev = v4l2_dev;
fmi->vdev.fops = &fmi_fops;
fmi->vdev.ioctl_ops = &fmi_ioctl_ops;
fmi->vdev.release = video_device_release_empty;
+ set_bit(V4L2_FL_USE_FH_PRIO, &fmi->vdev.flags);
video_set_drvdata(&fmi->vdev, fmi);
mutex_init(&fmi->lock);
- /* mute card - prevents noisy bootups */
- fmi_mute(fmi);
+ /* mute card and set default frequency */
+ fmi->mute = 1;
+ fmi->curfreq = RSF16_MINFREQ;
+ fmi_set_freq(fmi);
if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+ v4l2_ctrl_handler_free(hdl);
v4l2_device_unregister(v4l2_dev);
release_region(fmi->io, 2);
if (pnp_attached)
@@ -398,6 +371,7 @@ static void __exit fmi_exit(void)
{
struct fmi *fmi = &fmi_card;
+ v4l2_ctrl_handler_free(&fmi->hdl);
video_unregister_device(&fmi->vdev);
v4l2_device_unregister(&fmi->v4l2_dev);
release_region(fmi->io, 2);