aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/pci/tw68/tw68.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/pci/tw68/tw68.h')
-rw-r--r--drivers/media/pci/tw68/tw68.h231
1 files changed, 231 insertions, 0 deletions
diff --git a/drivers/media/pci/tw68/tw68.h b/drivers/media/pci/tw68/tw68.h
new file mode 100644
index 0000000..2c8abe2
--- /dev/null
+++ b/drivers/media/pci/tw68/tw68.h
@@ -0,0 +1,231 @@
+/*
+ * 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 <hverkuil@xs4all.nl>
+ *
+ * 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.
+ */
+
+#include <linux/version.h>
+#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-dma-sg.h>
+
+#include "tw68-reg.h"
+
+#define UNSET (-1U)
+
+/* system vendor and device ID's */
+#define PCI_VENDOR_ID_TECHWELL 0x1797
+#define PCI_DEVICE_ID_6800 0x6800
+#define PCI_DEVICE_ID_6801 0x6801
+#define PCI_DEVICE_ID_AUDIO2 0x6802
+#define PCI_DEVICE_ID_TS3 0x6803
+#define PCI_DEVICE_ID_6804 0x6804
+#define PCI_DEVICE_ID_AUDIO5 0x6805
+#define PCI_DEVICE_ID_TS6 0x6806
+
+/* tw6816 based cards */
+#define PCI_DEVICE_ID_6816_1 0x6810
+#define PCI_DEVICE_ID_6816_2 0x6811
+#define PCI_DEVICE_ID_6816_3 0x6812
+#define PCI_DEVICE_ID_6816_4 0x6813
+
+#define TW68_NORMS ( \
+ V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM | \
+ V4L2_STD_PAL_M | V4L2_STD_PAL_Nc | V4L2_STD_PAL_60)
+
+#define TW68_VID_INTS (TW68_FFERR | TW68_PABORT | TW68_DMAPERR | \
+ TW68_FFOF | TW68_DMAPI)
+/* TW6800 chips have trouble with these, so we don't set them for that chip */
+#define TW68_VID_INTSX (TW68_FDMIS | TW68_HLOCK | TW68_VLOCK)
+
+#define TW68_I2C_INTS (TW68_SBERR | TW68_SBDONE | TW68_SBERR2 | \
+ TW68_SBDONE2)
+
+enum tw68_decoder_type {
+ TW6800,
+ TW6801,
+ TW6804,
+ TWXXXX,
+};
+
+/* ----------------------------------------------------------- */
+/* static data */
+
+struct tw68_tvnorm {
+ char *name;
+ v4l2_std_id id;
+
+ /* video decoder */
+ u32 sync_control;
+ u32 luma_control;
+ u32 chroma_ctrl1;
+ u32 chroma_gain;
+ u32 chroma_ctrl2;
+ u32 vgate_misc;
+
+ /* video scaler */
+ u32 h_delay;
+ u32 h_delay0; /* for TW6800 */
+ u32 h_start;
+ u32 h_stop;
+ u32 v_delay;
+ u32 video_v_start;
+ u32 video_v_stop;
+ u32 vbi_v_start_0;
+ u32 vbi_v_stop_0;
+ u32 vbi_v_start_1;
+
+ /* Techwell specific */
+ u32 format;
+};
+
+struct tw68_format {
+ char *name;
+ u32 fourcc;
+ u32 depth;
+ u32 twformat;
+};
+
+/* ----------------------------------------------------------- */
+/* card configuration */
+
+#define TW68_BOARD_NOAUTO UNSET
+#define TW68_BOARD_UNKNOWN 0
+#define TW68_BOARD_GENERIC_6802 1
+
+#define TW68_MAXBOARDS 16
+#define TW68_INPUT_MAX 4
+
+/* ----------------------------------------------------------- */
+/* device / file handle status */
+
+#define BUFFER_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */
+
+struct tw68_dev; /* forward delclaration */
+
+/* buffer for one video/vbi/ts frame */
+struct tw68_buf {
+ struct vb2_buffer vb;
+ struct list_head list;
+
+ unsigned int size;
+ __le32 *cpu;
+ __le32 *jmp;
+ dma_addr_t dma;
+};
+
+struct tw68_fmt {
+ char *name;
+ u32 fourcc; /* v4l2 format id */
+ int depth;
+ int flags;
+ u32 twformat;
+};
+
+/* global device status */
+struct tw68_dev {
+ struct mutex lock;
+ spinlock_t slock;
+ u16 instance;
+ struct v4l2_device v4l2_dev;
+
+ /* various device info */
+ enum tw68_decoder_type vdecoder;
+ struct video_device vdev;
+ struct v4l2_ctrl_handler hdl;
+
+ /* pci i/o */
+ char *name;
+ struct pci_dev *pci;
+ unsigned char pci_rev, pci_lat;
+ u32 __iomem *lmmio;
+ u8 __iomem *bmmio;
+ u32 pci_irqmask;
+ /* The irq mask to be used will depend upon the chip type */
+ u32 board_virqmask;
+
+ /* video capture */
+ const struct tw68_format *fmt;
+ unsigned width, height;
+ unsigned seqnr;
+ unsigned field;
+ struct vb2_queue vidq;
+ struct list_head active;
+
+ /* various v4l controls */
+ const struct tw68_tvnorm *tvnorm; /* video */
+
+ int input;
+};
+
+/* ----------------------------------------------------------- */
+
+#define tw_readl(reg) readl(dev->lmmio + ((reg) >> 2))
+#define tw_readb(reg) readb(dev->bmmio + (reg))
+#define tw_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2))
+#define tw_writeb(reg, value) writeb((value), dev->bmmio + (reg))
+
+#define tw_andorl(reg, mask, value) \
+ writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
+ ((value) & (mask)), dev->lmmio+((reg)>>2))
+#define tw_andorb(reg, mask, value) \
+ writeb((readb(dev->bmmio + (reg)) & ~(mask)) |\
+ ((value) & (mask)), dev->bmmio+(reg))
+#define tw_setl(reg, bit) tw_andorl((reg), (bit), (bit))
+#define tw_setb(reg, bit) tw_andorb((reg), (bit), (bit))
+#define tw_clearl(reg, bit) \
+ writel((readl(dev->lmmio + ((reg) >> 2)) & ~(bit)), \
+ dev->lmmio + ((reg) >> 2))
+#define tw_clearb(reg, bit) \
+ writeb((readb(dev->bmmio+(reg)) & ~(bit)), \
+ dev->bmmio + (reg))
+
+#define tw_wait(us) { udelay(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);

Privacy Policy