summaryrefslogtreecommitdiffstats
path: root/drivers/media/radio/radio-tea5777.h
diff options
context:
space:
mode:
authorJiri Kosina <jkosina@suse.cz>2012-08-27 17:04:24 +0200
committerJiri Kosina <jkosina@suse.cz>2012-08-27 17:05:17 +0200
commit66a61fc0b2c3475f26f65b5f29ed5945b8efbf9e (patch)
tree28ebaaee56786cd9199e0e5802d166474d30d1e3 /drivers/media/radio/radio-tea5777.h
parentHID: hid-debug: Show rdesc for unclaimed devices (diff)
parentMerge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff)
downloadlinux-66a61fc0b2c3475f26f65b5f29ed5945b8efbf9e.tar.xz
linux-66a61fc0b2c3475f26f65b5f29ed5945b8efbf9e.zip
Merge branch 'master' into upstream
Sync with Linus' tree so that we don't have build falures due to Quanta 3001 ID reshuffling.
Diffstat (limited to 'drivers/media/radio/radio-tea5777.h')
-rw-r--r--drivers/media/radio/radio-tea5777.h87
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/media/radio/radio-tea5777.h b/drivers/media/radio/radio-tea5777.h
new file mode 100644
index 000000000000..55cbd78df5ed
--- /dev/null
+++ b/drivers/media/radio/radio-tea5777.h
@@ -0,0 +1,87 @@
+#ifndef __RADIO_TEA5777_H
+#define __RADIO_TEA5777_H
+
+/*
+ * v4l2 driver for TEA5777 Philips AM/FM radio tuner chips
+ *
+ * Copyright (c) 2012 Hans de Goede <hdegoede@redhat.com>
+ *
+ * Based on the ALSA driver for TEA5757/5759 Philips AM/FM radio tuner chips:
+ *
+ * Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
+ * Copyright (c) 2012 Hans de Goede <hdegoede@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/videodev2.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-device.h>
+
+#define TEA575X_FMIF 10700
+#define TEA575X_AMIF 450
+
+struct radio_tea5777;
+
+struct radio_tea5777_ops {
+ /*
+ * Write the 6 bytes large write register of the tea5777
+ *
+ * val represents the 6 write registers, with byte 1 from the
+ * datasheet being the most significant byte (so byte 5 of the u64),
+ * and byte 6 from the datasheet being the least significant byte.
+ *
+ * returns 0 on success.
+ */
+ int (*write_reg)(struct radio_tea5777 *tea, u64 val);
+ /*
+ * Read the 3 bytes large read register of the tea5777
+ *
+ * The read value gets returned in val, akin to write_reg, byte 1 from
+ * the datasheet is stored as the most significant byte (so byte 2 of
+ * the u32), and byte 3 from the datasheet gets stored as the least
+ * significant byte (iow byte 0 of the u32).
+ *
+ * returns 0 on success.
+ */
+ int (*read_reg)(struct radio_tea5777 *tea, u32 *val);
+};
+
+struct radio_tea5777 {
+ struct v4l2_device *v4l2_dev;
+ struct v4l2_file_operations fops;
+ struct video_device vd; /* video device */
+ bool has_am; /* Device can tune to AM freqs */
+ bool write_before_read; /* must write before read quirk */
+ bool needs_write; /* for write before read quirk */
+ u32 freq; /* current frequency */
+ u32 seek_rangelow; /* current hwseek limits */
+ u32 seek_rangehigh;
+ u32 read_reg;
+ u64 write_reg;
+ struct mutex mutex;
+ struct radio_tea5777_ops *ops;
+ void *private_data;
+ u8 card[32];
+ u8 bus_info[32];
+ struct v4l2_ctrl_handler ctrl_handler;
+};
+
+int radio_tea5777_init(struct radio_tea5777 *tea, struct module *owner);
+void radio_tea5777_exit(struct radio_tea5777 *tea);
+
+#endif /* __RADIO_TEA5777_H */