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[media] radio-aimslab: Use LM7000 driver

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Convert radio-aimslab to use generic LM7000 driver.
Tested with Reveal RA300.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Ondrej Zary 2012-06-12 14:38:00 -03:00 committed by Mauro Carvalho Chehab
parent 4ecbb69414
commit bece083a6b
2 changed files with 37 additions and 46 deletions
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3
drivers/media/radio/Kconfig
View File

@ -193,11 +193,14 @@ config RADIO_CADET
config RADIO_LM7000
tristate
depends on RADIO_RTRACK
default RADIO_RTRACK
config RADIO_RTRACK
tristate "AIMSlab RadioTrack (aka RadioReveal) support"
depends on ISA && VIDEO_V4L2
select RADIO_ISA
select RADIO_LM7000
---help---
Choose Y here if you have one of these FM radio cards, and then fill
in the port address below.

80
drivers/media/radio/radio-aimslab.c
View File

@ -37,6 +37,7 @@
#include <media/v4l2-ioctl.h>
#include <media/v4l2-ctrls.h>
#include "radio-isa.h"
#include "lm7000.h"
MODULE_AUTHOR("M. Kirkwood");
MODULE_DESCRIPTION("A driver for the RadioTrack/RadioReveal radio card.");
@ -61,66 +62,53 @@ MODULE_PARM_DESC(radio_nr, "Radio device numbers");
struct rtrack {
struct radio_isa_card isa;
int curvol;
struct lm7000 lm;
};
#define AIMS_BIT_TUN_CE (1 << 0)
#define AIMS_BIT_TUN_CLK (1 << 1)
#define AIMS_BIT_TUN_DATA (1 << 2)
#define AIMS_BIT_VOL_CE (1 << 3)
#define AIMS_BIT_TUN_STRQ (1 << 4)
/* bit 5 is not connected */
#define AIMS_BIT_VOL_UP (1 << 6) /* active low */
#define AIMS_BIT_VOL_DN (1 << 7) /* active low */
void rtrack_set_pins(struct lm7000 *lm, u8 pins)
{
struct rtrack *rt = container_of(lm, struct rtrack, lm);
u8 bits = AIMS_BIT_VOL_DN | AIMS_BIT_VOL_UP | AIMS_BIT_TUN_STRQ;
if (!v4l2_ctrl_g_ctrl(rt->isa.mute))
bits |= AIMS_BIT_VOL_CE;
if (pins & LM7000_DATA)
bits |= AIMS_BIT_TUN_DATA;
if (pins & LM7000_CLK)
bits |= AIMS_BIT_TUN_CLK;
if (pins & LM7000_CE)
bits |= AIMS_BIT_TUN_CE;
outb_p(bits, rt->isa.io);
}
static struct radio_isa_card *rtrack_alloc(void)
{
struct rtrack *rt = kzalloc(sizeof(struct rtrack), GFP_KERNEL);
if (rt)
if (rt) {
rt->curvol = 0xff;
rt->lm.set_pins = rtrack_set_pins;
}
return rt ? &rt->isa : NULL;
}
/* The 128+64 on these outb's is to keep the volume stable while tuning.
* Without them, the volume _will_ creep up with each frequency change
* and bit 4 (+16) is to keep the signal strength meter enabled.
*/
static void send_0_byte(struct radio_isa_card *isa, int on)
{
outb_p(128+64+16+on+1, isa->io); /* wr-enable + data low */
outb_p(128+64+16+on+2+1, isa->io); /* clock */
msleep(1);
}
static void send_1_byte(struct radio_isa_card *isa, int on)
{
outb_p(128+64+16+on+4+1, isa->io); /* wr-enable+data high */
outb_p(128+64+16+on+4+2+1, isa->io); /* clock */
msleep(1);
}
static int rtrack_s_frequency(struct radio_isa_card *isa, u32 freq)
{
int on = v4l2_ctrl_g_ctrl(isa->mute) ? 0 : 8;
int i;
struct rtrack *rt = container_of(isa, struct rtrack, isa);
freq += 171200; /* Add 10.7 MHz IF */
freq /= 800; /* Convert to 50 kHz units */
lm7000_set_freq(&rt->lm, freq);
send_0_byte(isa, on); /* 0: LSB of frequency */
for (i = 0; i < 13; i++) /* : frequency bits (1-13) */
if (freq & (1 << i))
send_1_byte(isa, on);
else
send_0_byte(isa, on);
send_0_byte(isa, on); /* 14: test bit - always 0 */
send_0_byte(isa, on); /* 15: test bit - always 0 */
send_0_byte(isa, on); /* 16: band data 0 - always 0 */
send_0_byte(isa, on); /* 17: band data 1 - always 0 */
send_0_byte(isa, on); /* 18: band data 2 - always 0 */
send_0_byte(isa, on); /* 19: time base - always 0 */
send_0_byte(isa, on); /* 20: spacing (0 = 25 kHz) */
send_1_byte(isa, on); /* 21: spacing (1 = 25 kHz) */
send_0_byte(isa, on); /* 22: spacing (0 = 25 kHz) */
send_1_byte(isa, on); /* 23: AM/FM (FM = 1, always) */
outb(0xd0 + on, isa->io); /* volume steady + sigstr */
return 0;
}