summaryrefslogtreecommitdiff
path: root/drivers/media/radio/radio-aimslab.c
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@redhat.com>2012-06-25 18:06:54 +0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-06-25 18:06:54 +0400
commit8f7fa3c8014cc6a892e5bd0e31dc772989935ec3 (patch)
tree612261b4a16550f22c098b9ce76bdfccce8e008d /drivers/media/radio/radio-aimslab.c
parent6d642d26065c5d375fbb819dbfd8f5d1b9255ece (diff)
downloadlinux-8f7fa3c8014cc6a892e5bd0e31dc772989935ec3.tar.xz
Revert "[media] radio-aimslab: Use LM7000 driver"
This reverts commit bece083a6b2b242c7ab74117640396e1bd851e49. As requested by Hans Verkuil: > You accidentally merged the wrong first version of the lm7000 patch series. > > These are the correct second version patches: > > http://patchwork.linuxtv.org/patch/11689/ > http://patchwork.linuxtv.org/patch/11690/ > http://patchwork.linuxtv.org/patch/11691/ > > The second version is much simpler and doesn't require the creation of a whole > new driver. Requested-by: Hans Verkuil <hverkuil@xs4all.nl> Cc: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio/radio-aimslab.c')
-rw-r--r--drivers/media/radio/radio-aimslab.c78
1 files changed, 45 insertions, 33 deletions
diff --git a/drivers/media/radio/radio-aimslab.c b/drivers/media/radio/radio-aimslab.c
index 48b72d89dffe..98e0c8c20312 100644
--- a/drivers/media/radio/radio-aimslab.c
+++ b/drivers/media/radio/radio-aimslab.c
@@ -37,7 +37,6 @@
#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.");
@@ -62,53 +61,66 @@ MODULE_PARM_DESC(radio_nr, "Radio device numbers");
struct rtrack {
struct radio_isa_card isa;
int curvol;
- struct lm7000 lm;
};
-#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)
+static struct radio_isa_card *rtrack_alloc(void)
{
- struct rtrack *rt = container_of(lm, struct rtrack, lm);
- u8 bits = AIMS_BIT_VOL_DN | AIMS_BIT_VOL_UP | AIMS_BIT_TUN_STRQ;
+ struct rtrack *rt = kzalloc(sizeof(struct rtrack), GFP_KERNEL);
- if (!v4l2_ctrl_g_ctrl(rt->isa.mute))
- bits |= AIMS_BIT_VOL_CE;
+ if (rt)
+ rt->curvol = 0xff;
+ return rt ? &rt->isa : NULL;
+}
- 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;
+/* 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.
+ */
- outb_p(bits, rt->isa.io);
+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);
}
-static struct radio_isa_card *rtrack_alloc(void)
+static void send_1_byte(struct radio_isa_card *isa, int on)
{
- 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;
+ 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);
}
static int rtrack_s_frequency(struct radio_isa_card *isa, u32 freq)
{
- struct rtrack *rt = container_of(isa, struct rtrack, isa);
+ 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 */
- lm7000_set_freq(&rt->lm, freq);
+ 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) */
+ outb(0xd0 + on, isa->io); /* volume steady + sigstr */
return 0;
}