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Commit eb27fafe authored by Ondrej Zary's avatar Ondrej Zary Committed by Mauro Carvalho Chehab
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[media] radio-aztech: Convert to generic lm7000 implementation 



Aztech radio card is based on LM7001 chip which is (software) compatible with LM7000.
So remove the LM7000-specific code from the driver and use generic code.
Also found that the card does not have A0..A2 ISA pins connected, which means that the region size is 8 bytes.

Signed-off-by: default avatarOndrej Zary <linux@rainbow-software.org>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent cd2e34ea

drivers/media/radio/radio-aztech.c

+24 −44
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
#include <media/v4l2-ioctl.h>

#include <media/v4l2-ctrls.h>

#include "radio-isa.h"

#include "lm7000.h"



MODULE_AUTHOR("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");

MODULE_DESCRIPTION("A driver for the Aztech radio card.");
@@ -54,18 +55,29 @@ struct aztech { 
	int curvol;

};



static void send_0_byte(struct aztech *az)

{

	udelay(radio_wait_time);

	outb_p(2 + az->curvol, az->isa.io);

	outb_p(64 + 2 + az->curvol, az->isa.io);

}

/* bit definitions for register read */

#define AZTECH_BIT_NOT_TUNED	(1 << 0)

#define AZTECH_BIT_MONO		(1 << 1)

/* bit definitions for register write */

#define AZTECH_BIT_TUN_CE	(1 << 1)

#define AZTECH_BIT_TUN_CLK	(1 << 6)

#define AZTECH_BIT_TUN_DATA	(1 << 7)

/* bits 0 and 2 are volume control, bits 3..5 are not connected */



static void send_1_byte(struct aztech *az)

static void aztech_set_pins(void *handle, u8 pins)

{

	udelay(radio_wait_time);

	outb_p(128 + 2 + az->curvol, az->isa.io);

	outb_p(128 + 64 + 2 + az->curvol, az->isa.io);

	struct radio_isa_card *isa = handle;

	struct aztech *az = container_of(isa, struct aztech, isa);

	u8 bits = az->curvol;



	if (pins & LM7000_DATA)

		bits |= AZTECH_BIT_TUN_DATA;

	if (pins & LM7000_CLK)

		bits |= AZTECH_BIT_TUN_CLK;

	if (pins & LM7000_CE)

		bits |= AZTECH_BIT_TUN_CE;



	outb_p(bits, az->isa.io);

}



static struct radio_isa_card *aztech_alloc(void)
@@ -77,39 +89,7 @@ static struct radio_isa_card *aztech_alloc(void) 


static int aztech_s_frequency(struct radio_isa_card *isa, u32 freq)

{

	struct aztech *az = container_of(isa, struct aztech, isa);

	int  i;



	freq += 171200;			/* Add 10.7 MHz IF		*/

	freq /= 800;			/* Convert to 50 kHz units	*/



	send_0_byte(az);		/*  0: LSB of frequency       */



	for (i = 0; i < 13; i++)	/*   : frequency bits (1-13)  */

		if (freq & (1 << i))

			send_1_byte(az);

		else

			send_0_byte(az);



	send_0_byte(az);		/* 14: test bit - always 0    */

	send_0_byte(az);		/* 15: test bit - always 0    */

	send_0_byte(az);		/* 16: band data 0 - always 0 */

	if (isa->stereo)		/* 17: stereo (1 to enable)   */

		send_1_byte(az);

	else

		send_0_byte(az);



	send_1_byte(az);		/* 18: band data 1 - unknown  */

	send_0_byte(az);		/* 19: time base - always 0   */

	send_0_byte(az);		/* 20: spacing (0 = 25 kHz)   */

	send_1_byte(az);		/* 21: spacing (1 = 25 kHz)   */

	send_0_byte(az);		/* 22: spacing (0 = 25 kHz)   */

	send_1_byte(az);		/* 23: AM/FM (FM = 1, always) */



	/* latch frequency */



	udelay(radio_wait_time);

	outb_p(128 + 64 + az->curvol, az->isa.io);

	lm7000_set_freq(freq, isa, aztech_set_pins);



	return 0;

}
@@ -165,7 +145,7 @@ static struct radio_isa_driver aztech_driver = { 
	.radio_nr_params = radio_nr,

	.io_ports = aztech_ioports,

	.num_of_io_ports = ARRAY_SIZE(aztech_ioports),

	.region_size = 2,

	.region_size = 8,

	.card = "Aztech Radio",

	.ops = &aztech_ops,

	.has_stereo = true,