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[media] radio-aztech: Convert to generic lm7000 implementation

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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: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Ondrej Zary 2013-07-19 13:46:17 -03:00 committed by Mauro Carvalho Chehab
parent cd2e34ead8
commit eb27fafef6
1 changed files with 24 additions and 44 deletions
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68
drivers/media/radio/radio-aztech.c
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@ -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,