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Commit bece083a authored by Ondrej Zary's avatar Ondrej Zary Committed by Mauro Carvalho Chehab
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[media] radio-aimslab: Use LM7000 driver 



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

Signed-off-by: default avatarOndrej Zary <linux@rainbow-software.org>
Acked-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 4ecbb694

drivers/media/radio/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -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.

drivers/media/radio/radio-aimslab.c

+33 −45
Original line number Diff line number Diff line
@@ -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;

};



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;

}