/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * tw68 driver common header file * * Much of this code is derived from the cx88 and sa7134 drivers, which * were in turn derived from the bt87x driver. The original work was by * Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab, * Hans Verkuil, Andy Walls and many others. Their work is gratefully * acknowledged. Full credit goes to them - any problems within this code * are mine. * * Copyright (C) 2009 William M. Brack * * Refactored and updated to the latest v4l core frameworks: * * Copyright (C) 2014 Hans Verkuil <[email protected]> */ #include <linux/pci.h> #include <linux/videodev2.h> #include <linux/notifier.h> #include <linux/delay.h> #include <linux/mutex.h> #include <linux/io.h> #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/videobuf2-v4l2.h> #include <media/videobuf2-dma-sg.h> #include "tw68-reg.h" #define UNSET … #define TW68_NORMS … #define TW68_VID_INTS … /* TW6800 chips have trouble with these, so we don't set them for that chip */ #define TW68_VID_INTSX … #define TW68_I2C_INTS … enum tw68_decoder_type { … }; /* ----------------------------------------------------------- */ /* static data */ struct tw68_tvnorm { … }; struct tw68_format { … }; /* ----------------------------------------------------------- */ /* card configuration */ #define TW68_BOARD_NOAUTO … #define TW68_BOARD_UNKNOWN … #define TW68_BOARD_GENERIC_6802 … #define TW68_MAXBOARDS … #define TW68_INPUT_MAX … /* ----------------------------------------------------------- */ /* device / file handle status */ #define BUFFER_TIMEOUT … struct tw68_dev; /* forward delclaration */ /* buffer for one video/vbi/ts frame */ struct tw68_buf { … }; struct tw68_fmt { … }; /* global device status */ struct tw68_dev { … }; /* ----------------------------------------------------------- */ #define tw_readl(reg) … #define tw_readb(reg) … #define tw_writel(reg, value) … #define tw_writeb(reg, value) … #define tw_andorl(reg, mask, value) … #define tw_andorb(reg, mask, value) … #define tw_setl(reg, bit) … #define tw_setb(reg, bit) … #define tw_clearl(reg, bit) … #define tw_clearb(reg, bit) … #define tw_wait(us) … /* ----------------------------------------------------------- */ /* tw68-video.c */ void tw68_set_tvnorm_hw(struct tw68_dev *dev); int tw68_video_init1(struct tw68_dev *dev); int tw68_video_init2(struct tw68_dev *dev, int video_nr); void tw68_irq_video_done(struct tw68_dev *dev, unsigned long status); int tw68_video_start_dma(struct tw68_dev *dev, struct tw68_buf *buf); /* ----------------------------------------------------------- */ /* tw68-risc.c */ int tw68_risc_buffer(struct pci_dev *pci, struct tw68_buf *buf, struct scatterlist *sglist, unsigned int top_offset, unsigned int bottom_offset, unsigned int bpl, unsigned int padding, unsigned int lines);
Codebase Browser
linux