/*************************************************************************** * V4L2 driver for SN9C10x PC Camera Controllers * * * * Copyright (C) 2004-2005 by Luca Risolia <luca.risolia@studio.unibo.it> * * * * 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, write to the Free Software * * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * ***************************************************************************/ #ifndef _SN9C102_H_ #define _SN9C102_H_ #include <linux/version.h> #include <linux/usb.h> #include <linux/videodev.h> #include <linux/device.h> #include <linux/list.h> #include <linux/spinlock.h> #include <linux/time.h> #include <linux/wait.h> #include <linux/types.h> #include <linux/param.h> #include <linux/rwsem.h> #include <asm/semaphore.h> #include "sn9c102_sensor.h" /*****************************************************************************/ #define SN9C102_DEBUG #define SN9C102_DEBUG_LEVEL 2 #define SN9C102_MAX_DEVICES 64 #define SN9C102_PRESERVE_IMGSCALE 0 #define SN9C102_FORCE_MUNMAP 0 #define SN9C102_MAX_FRAMES 32 #define SN9C102_URBS 2 #define SN9C102_ISO_PACKETS 7 #define SN9C102_ALTERNATE_SETTING 8 #define SN9C102_URB_TIMEOUT msecs_to_jiffies(2 * SN9C102_ISO_PACKETS) #define SN9C102_CTRL_TIMEOUT 300 /*****************************************************************************/ #define SN9C102_MODULE_NAME "V4L2 driver for SN9C10x PC Camera Controllers" #define SN9C102_MODULE_AUTHOR "(C) 2004-2005 Luca Risolia" #define SN9C102_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>" #define SN9C102_MODULE_LICENSE "GPL" #define SN9C102_MODULE_VERSION "1:1.24" #define SN9C102_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 24) enum sn9c102_bridge { BRIDGE_SN9C101 = 0x01, BRIDGE_SN9C102 = 0x02, BRIDGE_SN9C103 = 0x04, }; SN9C102_ID_TABLE SN9C102_SENSOR_TABLE enum sn9c102_frame_state { F_UNUSED, F_QUEUED, F_GRABBING, F_DONE, F_ERROR, }; struct sn9c102_frame_t { void* bufmem; struct v4l2_buffer buf; enum sn9c102_frame_state state; struct list_head frame; unsigned long vma_use_count; }; enum sn9c102_dev_state { DEV_INITIALIZED = 0x01, DEV_DISCONNECTED = 0x02, DEV_MISCONFIGURED = 0x04, }; enum sn9c102_io_method { IO_NONE, IO_READ, IO_MMAP, }; enum sn9c102_stream_state { STREAM_OFF, STREAM_INTERRUPT, STREAM_ON, }; typedef char sn9c102_sof_header_t[12]; typedef char sn9c102_eof_header_t[4]; struct sn9c102_sysfs_attr { u8 reg, i2c_reg; sn9c102_sof_header_t frame_header; }; struct sn9c102_module_param { u8 force_munmap; }; static DECLARE_MUTEX(sn9c102_sysfs_lock); static DECLARE_RWSEM(sn9c102_disconnect); struct sn9c102_device { struct device dev; struct video_device* v4ldev; enum sn9c102_bridge bridge; struct sn9c102_sensor* sensor; struct usb_device* usbdev; struct urb* urb[SN9C102_URBS]; void* transfer_buffer[SN9C102_URBS]; u8* control_buffer; struct sn9c102_frame_t *frame_current, frame[SN9C102_MAX_FRAMES]; struct list_head inqueue, outqueue; u32 frame_count, nbuffers, nreadbuffers; enum sn9c102_io_method io; enum sn9c102_stream_state stream; struct v4l2_jpegcompression compression; struct sn9c102_sysfs_attr sysfs; sn9c102_sof_header_t sof_header; u16 reg[32]; struct sn9c102_module_param module_param; enum sn9c102_dev_state state; u8 users; struct semaphore dev_sem, fileop_sem; spinlock_t queue_lock; wait_queue_head_t open, wait_frame, wait_stream; }; /*****************************************************************************/ void sn9c102_attach_sensor(struct sn9c102_device* cam, struct sn9c102_sensor* sensor) { cam->sensor = sensor; cam->sensor->dev = &cam->dev; cam->sensor->usbdev = cam->usbdev; } /*****************************************************************************/ #undef DBG #undef KDBG #ifdef SN9C102_DEBUG # define DBG(level, fmt, args...) \ { \ if (debug >= (level)) { \ if ((level) == 1) \ dev_err(&cam->dev, fmt "\n", ## args); \ else if ((level) == 2) \ dev_info(&cam->dev, fmt "\n", ## args); \ else if ((level) >= 3) \ dev_info(&cam->dev, "[%s:%d] " fmt "\n", \ __FUNCTION__, __LINE__ , ## args); \ } \ } # define KDBG(level, fmt, args...) \ { \ if (debug >= (level)) { \ if ((level) == 1 || (level) == 2) \ pr_info("sn9c102: " fmt "\n", ## args); \ else if ((level) == 3) \ pr_debug("sn9c102: [%s:%d] " fmt "\n", __FUNCTION__, \ __LINE__ , ## args); \ } \ } #else # define KDBG(level, fmt, args...) do {;} while(0); # define DBG(level, fmt, args...) do {;} while(0); #endif #undef PDBG #define PDBG(fmt, args...) \ dev_info(&cam->dev, "[%s:%d] " fmt "\n", __FUNCTION__, __LINE__ , ## args); #undef PDBGG #define PDBGG(fmt, args...) do {;} while(0); /* placeholder */ #endif /* _SN9C102_H_ */