From eb27fafef69568a82c46c27a1761f037e4272b87 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Fri, 19 Jul 2013 13:46:17 -0300 Subject: [PATCH] [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: Ondrej Zary Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/radio/radio-aztech.c | 68 +++++++++++------------------- 1 file changed, 24 insertions(+), 44 deletions(-) diff --git a/drivers/media/radio/radio-aztech.c b/drivers/media/radio/radio-aztech.c index 177bcbd7a7c1..2f5671f2e17e 100644 --- a/drivers/media/radio/radio-aztech.c +++ b/drivers/media/radio/radio-aztech.c @@ -26,6 +26,7 @@ #include #include #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, -- 2.30.2