| /* |
| * 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; |
| void *alloc_ctx; |
| |
| /* 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); |