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yaml
---
r: 320039
b: refs/heads/master
c: bece083
h: refs/heads/master
i:
  320037: e484b2b
  320035: 8b65e0d
  320031: 186bcf4
v: v3
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Ondrej Zary authored and Mauro Carvalho Chehab committed Jun 21, 2012
1 parent c40d549 commit 93bcc1d
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Showing 3 changed files with 37 additions and 46 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 4ecbb69414c61af3594209e081d6e834ea68a16d
refs/heads/master: bece083a6b2b242c7ab74117640396e1bd851e49
3 changes: 3 additions & 0 deletions trunk/drivers/media/radio/Kconfig
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Expand Up @@ -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.
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78 changes: 33 additions & 45 deletions trunk/drivers/media/radio/radio-aimslab.c
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Expand Up @@ -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.");
Expand All @@ -61,66 +62,53 @@ MODULE_PARM_DESC(radio_nr, "Radio device numbers");
struct rtrack {
struct radio_isa_card isa;
int curvol;
struct lm7000 lm;
};

static struct radio_isa_card *rtrack_alloc(void)
#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 = kzalloc(sizeof(struct rtrack), GFP_KERNEL);
struct rtrack *rt = container_of(lm, struct rtrack, lm);
u8 bits = AIMS_BIT_VOL_DN | AIMS_BIT_VOL_UP | AIMS_BIT_TUN_STRQ;

if (rt)
rt->curvol = 0xff;
return rt ? &rt->isa : NULL;
}
if (!v4l2_ctrl_g_ctrl(rt->isa.mute))
bits |= AIMS_BIT_VOL_CE;

/* 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.
*/
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;

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);
outb_p(bits, rt->isa.io);
}

static void send_1_byte(struct radio_isa_card *isa, int on)
static struct radio_isa_card *rtrack_alloc(void)
{
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);
struct rtrack *rt = kzalloc(sizeof(struct rtrack), GFP_KERNEL);

if (rt) {
rt->curvol = 0xff;
rt->lm.set_pins = rtrack_set_pins;
}
return rt ? &rt->isa : NULL;
}

static int rtrack_s_frequency(struct radio_isa_card *isa, u32 freq)
{
int on = v4l2_ctrl_g_ctrl(isa->mute) ? 0 : 8;
int i;

freq += 171200; /* Add 10.7 MHz IF */
freq /= 800; /* Convert to 50 kHz units */

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 */
struct rtrack *rt = container_of(isa, struct rtrack, isa);

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) */
lm7000_set_freq(&rt->lm, freq);

outb(0xd0 + on, isa->io); /* volume steady + sigstr */
return 0;
}

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