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Message-Id: <1363270024-12127-2-git-send-email-jonarne@jonarne.no>
Date: Thu, 14 Mar 2013 15:06:57 +0100
From: Jon Arne Jørgensen <jonarne@...arne.no>
To: linux-media@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, hverkuil@...all.nl,
elezegarcia@...il.com,
Jon Arne Jørgensen <jonarne@...arne.no>
Subject: [RFC V1 1/8] smi2021: Add the header file
This is the header file for the smi2021 module.
Signed-off-by: Jon Arne Jørgensen <jonarne@...arne.no>
---
drivers/media/usb/smi2021/smi2021.h | 228 ++++++++++++++++++++++++++++++++++++
1 file changed, 228 insertions(+)
create mode 100644 drivers/media/usb/smi2021/smi2021.h
diff --git a/drivers/media/usb/smi2021/smi2021.h b/drivers/media/usb/smi2021/smi2021.h
new file mode 100644
index 0000000..eba0fef
--- /dev/null
+++ b/drivers/media/usb/smi2021/smi2021.h
@@ -0,0 +1,228 @@
+/*******************************************************************************
+ * smi2021.h *
+ * *
+ * USB Driver for SMI2021 - EasyCap *
+ * USB ID 1c88:003c *
+ * *
+ * *****************************************************************************
+ *
+ * Copyright 2011-2013 Jon Arne Jørgensen
+ * <jonjon.arnearne--a.t--gmail.com>
+ *
+ * Copyright 2011, 2012 Tony Brown, Michal Demin, Jeffry Johnston
+ *
+ * This file is part of SMI2021
+ * http://code.google.com/p/easycap-somagic-linux/
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * This driver is heavily influensed by the STK1160 driver.
+ * Copyright (C) 2012 Ezequiel Garcia
+ * <elezegarcia--a.t--gmail.com>
+ *
+ */
+
+#ifndef SMI2021_H
+#define SMI2021_H
+
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/types.h>
+#include <linux/spinlock_types.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+
+#include <media/v4l2-event.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-vmalloc.h>
+#include <media/saa7115.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+
+#define SMI2021_DRIVER_VERSION "0.1"
+
+/* For ISOC */
+#define SMI2021_MAX_PKT_SIZE 3072
+#define SMI2021_ISOC_PACKETS 10 /* 64 */
+#define SMI2021_ISOC_BUFS 4 /* 16 */
+#define SMI2021_ISOC_EP 0x82
+
+/* The structure of the array we use to send i2c settings to the device */
+#define SMI2021_CTRL_HEAD 0x00
+#define SMI2021_CTRL_ADDR 0x01
+#define SMI2021_CTRL_BM_DATA_TYPE 0x02
+#define SMI2021_CTRL_BM_DATA_OFFSET 0x03
+#define SMI2021_CTRL_DATA_SIZE 0x04
+
+#define SMI2021_CTRL_REG_HI 0x05
+#define SMI2021_CTRL_REG_LO 0x06
+#define SMI2021_CTRL_REG_VAL 0x07
+
+#define SMI2021_CTRL_I2C_REG 0x05
+#define SMI2021_CTRL_I2C_VAL 0x06
+#define SMI2021_CTRL_I2C_RCV_VAL 0x05
+
+/* General video constants */
+#define SMI2021_BYTES_PER_LINE 1440
+#define SMI2021_PAL_LINES 576
+#define SMI2021_NTSC_LINES 486
+
+/* Timing Referance Codes, see saa7113 datasheet */
+#define SMI2021_TRC_EAV 0x10
+#define SMI2021_TRC_VBI 0x20
+#define SMI2021_TRC_FIELD_2 0x40
+#define SMI2021_TRC 0x80
+
+#define DEBUG
+#ifdef DEBUG
+#define smi2021_dbg(fmt, args...) \
+ pr_debug("smi2021::%s: " fmt, __func__, \
+ ##args)
+#else
+#define smi2021_dbg(fmt, args...)
+#endif
+
+#define smi2021_info(fmt, args...) \
+ pr_info("smi2021::%s: " fmt, \
+ __func__, ##args)
+
+#define smi2021_warn(fmt, args...) \
+ pr_warn("smi2021::%s: " fmt, \
+ __func__, ##args)
+
+#define smi2021_err(fmt, args...) \
+ pr_err("smi2021::%s: " fmt, \
+ __func__, ##args)
+
+enum smi2021_sync {
+ HSYNC,
+ SYNCZ1,
+ SYNCZ2,
+ TRC
+};
+
+/* Buffer for one video frame */
+struct smi2021_buffer {
+ /* Common vb2 stuff, must be first */
+ struct vb2_buffer vb;
+ struct list_head list;
+
+ void *mem;
+ unsigned int length;
+
+ bool second_field;
+ bool in_blank;
+ unsigned int pos;
+
+ /* ActiveVideo - Line counter */
+ u16 trc_av;
+};
+
+struct smi2021_isoc_ctl {
+ int max_pkt_size;
+ int num_bufs;
+ struct urb **urb;
+ char **transfer_buffer;
+ struct smi2021_buffer *buf;
+};
+
+
+struct smi2021_fmt {
+ char *name;
+ u32 fourcc;
+ int depth;
+};
+
+struct smi2021_input {
+ char *name;
+ int type;
+};
+
+struct smi2021_dev {
+ struct v4l2_device v4l2_dev;
+ struct video_device vdev;
+ struct v4l2_ctrl_handler ctrl_handler;
+
+ struct v4l2_subdev *sd_saa7113;
+
+ struct usb_device *udev;
+ struct device *dev;
+
+ /* Capture buffer queue */
+ struct vb2_queue vb_vidq;
+
+ /* ISOC control struct */
+ struct list_head avail_bufs;
+ struct smi2021_isoc_ctl isoc_ctl;
+
+ int width; /* frame width */
+ int height; /* frame height */
+ unsigned int ctl_input; /* selected input */
+ v4l2_std_id norm; /* current norm */
+ struct smi2021_fmt *fmt; /* selected format */
+ unsigned int buf_count; /* for video buffers */
+
+ /* i2c i/o */
+ struct i2c_adapter i2c_adap;
+ struct i2c_client i2c_client;
+
+ struct mutex v4l2_lock;
+ struct mutex vb_queue_lock;
+ spinlock_t buf_lock;
+
+ enum smi2021_sync sync_state;
+
+ /* audio */
+ struct snd_card *snd_card;
+ struct snd_pcm_substream *pcm_substream;
+
+ unsigned int pcm_write_ptr;
+ unsigned int pcm_complete_samples;
+
+ u8 pcm_read_offset;
+ struct work_struct adev_capture_trigger;
+ atomic_t adev_capturing;
+};
+
+/* Provided by smi2021_main.c */
+int smi2021_write_reg(struct smi2021_dev *dev, u8 addr, u16 reg, u8 val);
+int smi2021_read_reg(struct smi2021_dev *dev, u8 addr, u16 reg, u8 *val);
+
+/* Provided by smi2021_v4l2.c */
+int smi2021_vb2_setup(struct smi2021_dev *dev);
+int smi2021_video_register(struct smi2021_dev *dev);
+void smi2021_clear_queue(struct smi2021_dev *dev);
+
+/* Provided by smi2021_video.c */
+int smi2021_alloc_isoc(struct smi2021_dev *dev);
+void smi2021_free_isoc(struct smi2021_dev *dev);
+void smi2021_cancel_isoc(struct smi2021_dev *dev);
+void smi2021_uninit_isoc(struct smi2021_dev *dev);
+
+/* Provided by smi2021_i2c.c */
+int smi2021_i2c_register(struct smi2021_dev *dev);
+int smi2021_i2c_unregister(struct smi2021_dev *dev);
+
+/* Provided by smi2021_audio.c */
+int smi2021_snd_register(struct smi2021_dev *dev);
+void smi2021_snd_unregister(struct smi2021_dev *dev);
+void smi2021_audio(struct smi2021_dev *dev, u8 *data, int len);
+#endif /* SMI2021_H */
--
1.8.1.1
--
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