/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * STK1160 driver * * Copyright (C) 2012 Ezequiel Garcia * <elezegarcia--a.t--gmail.com> * * Based on Easycap driver by R.M. Thomas * Copyright (C) 2010 R.M. Thomas * <rmthomas--a.t--sciolus.org> */ #include <linux/i2c.h> #include <sound/core.h> #include <sound/ac97_codec.h> #include <media/videobuf2-v4l2.h> #include <media/v4l2-device.h> #include <media/v4l2-ctrls.h> #include <linux/usb.h> #include <linux/usb/hcd.h> #define STK1160_VERSION … #define STK1160_VERSION_NUM … /* Decide on number of packets for each buffer */ #define STK1160_NUM_PACKETS … /* Number of buffers for isoc transfers */ #define STK1160_NUM_BUFS … #define STK1160_MIN_BUFS … /* TODO: This endpoint address should be retrieved */ #define STK1160_EP_VIDEO … #define STK1160_EP_AUDIO … /* Max and min video buffers */ #define STK1160_MIN_VIDEO_BUFFERS … #define STK1160_MAX_VIDEO_BUFFERS … #define STK1160_MIN_PKT_SIZE … #define STK1160_MAX_INPUT … #define STK1160_SVIDEO_INPUT … #define STK1160_AC97_TIMEOUT … #define STK1160_I2C_TIMEOUT … /* TODO: Print helpers * I could use dev_xxx, pr_xxx, v4l2_xxx or printk. * However, there isn't a solid consensus on which * new drivers should use. * */ #ifdef DEBUG #define stk1160_dbg … #else #define stk1160_dbg(fmt, args...) … #endif #define stk1160_info(fmt, args...) … #define stk1160_warn(fmt, args...) … #define stk1160_err(fmt, args...) … /* Buffer for one video frame */ struct stk1160_buffer { … }; struct stk1160_urb { … }; struct stk1160_isoc_ctl { … }; struct stk1160_fmt { … }; struct stk1160 { … }; struct regval { … }; /* Provided by stk1160-v4l.c */ int stk1160_vb2_setup(struct stk1160 *dev); int stk1160_video_register(struct stk1160 *dev); void stk1160_video_unregister(struct stk1160 *dev); void stk1160_clear_queue(struct stk1160 *dev, enum vb2_buffer_state vb2_state); /* Provided by stk1160-video.c */ int stk1160_alloc_isoc(struct stk1160 *dev); void stk1160_free_isoc(struct stk1160 *dev); void stk1160_cancel_isoc(struct stk1160 *dev); void stk1160_uninit_isoc(struct stk1160 *dev); /* Provided by stk1160-i2c.c */ int stk1160_i2c_register(struct stk1160 *dev); int stk1160_i2c_unregister(struct stk1160 *dev); /* Provided by stk1160-core.c */ int stk1160_read_reg(struct stk1160 *dev, u16 reg, u8 *value); int stk1160_write_reg(struct stk1160 *dev, u16 reg, u16 value); int stk1160_write_regs_req(struct stk1160 *dev, u8 req, u16 reg, char *buf, int len); int stk1160_read_reg_req_len(struct stk1160 *dev, u8 req, u16 reg, char *buf, int len); void stk1160_select_input(struct stk1160 *dev); /* Provided by stk1160-ac97.c */ void stk1160_ac97_setup(struct stk1160 *dev); static inline struct device *stk1160_get_dmadev(struct stk1160 *dev) { … }
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