diff options
Diffstat (limited to 'drivers/media/dvb/dvb-usb/dvb-usb.h')
| -rw-r--r-- | drivers/media/dvb/dvb-usb/dvb-usb.h | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb.h b/drivers/media/dvb/dvb-usb/dvb-usb.h new file mode 100644 index 00000000000..abcee1943f6 --- /dev/null +++ b/drivers/media/dvb/dvb-usb/dvb-usb.h @@ -0,0 +1,315 @@ +/* dvb-usb.h is part of the DVB USB library. + * + * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de) + * see dvb-usb-init.c for copyright information. + * + * the headerfile, all dvb-usb-drivers have to include. + */ +#ifndef __DVB_USB_H__ +#define __DVB_USB_H__ + +#include <linux/config.h> +#include <linux/input.h> +#include <linux/module.h> +#include <linux/usb.h> + +#include "dvb_frontend.h" +#include "dvb_demux.h" +#include "dvb_net.h" +#include "dmxdev.h" + +#include "dvb-pll.h" + +#include "dvb-usb-ids.h" + +/* debug */ +#ifdef CONFIG_DVB_USB_DEBUG +#define dprintk(var,level,args...) \ + do { if ((var & level)) { printk(args); } } while (0) + +#define debug_dump(b,l,func) {\ + int loop_; \ + for (loop_ = 0; loop_ < l; loop_++) func("%02x ", b[loop_]); \ + func("\n");\ +} +#define DVB_USB_DEBUG_STATUS +#else +#define dprintk(args...) +#define debug_dump(b,l,func) + +#define DVB_USB_DEBUG_STATUS " (debugging is not enabled)" + +#endif + +/* generic log methods - taken from usb.h */ +#ifndef DVB_USB_LOG_PREFIX + #define DVB_USB_LOG_PREFIX "dvb-usb (please define a log prefix)" +#endif + +#undef err +#define err(format, arg...) printk(KERN_ERR DVB_USB_LOG_PREFIX ": " format "\n" , ## arg) +#undef info +#define info(format, arg...) printk(KERN_INFO DVB_USB_LOG_PREFIX ": " format "\n" , ## arg) +#undef warn +#define warn(format, arg...) printk(KERN_WARNING DVB_USB_LOG_PREFIX ": " format "\n" , ## arg) + +/** + * struct dvb_usb_device_description - name and its according USB IDs + * @name: real name of the box, regardless which DVB USB device class is in use + * @cold_ids: array of struct usb_device_id which describe the device in + * pre-firmware state + * @warm_ids: array of struct usb_device_id which describe the device in + * post-firmware state + * + * Each DVB USB device class can have one or more actual devices, this struct + * assigns a name to it. + */ +struct dvb_usb_device_description { + const char *name; + +#define DVB_USB_ID_MAX_NUM 15 + struct usb_device_id *cold_ids[DVB_USB_ID_MAX_NUM]; + struct usb_device_id *warm_ids[DVB_USB_ID_MAX_NUM]; +}; + +/** + * struct dvb_usb_rc_key - a remote control key and its input-event + * @custom: the vendor/custom part of the key + * @data: the actual key part + * @event: the input event assigned to key identified by custom and data + */ +struct dvb_usb_rc_key { + u8 custom,data; + u32 event; +}; + +struct dvb_usb_device; + +/** + * struct dvb_usb_properties - properties of a dvb-usb-device + * @caps: capabilites of the DVB USB device. + * @pid_filter_count: number of PID filter position in the optional hardware + * PID-filter. + * + * @usb_ctrl: which USB device-side controller is in use. Needed for firmware + * download. + * @firmware: name of the firmware file. + * + * @size_of_priv: how many bytes shall be allocated for the private field + * of struct dvb_usb_device. + * + * @power_ctrl: called to enable/disable power of the device. + * @streaming_crtl: called to start and stop the MPEG2-TS streaming of the + * device (not URB submitting/killing). + * @pid_filter_ctrl: called to en/disable the PID filter, if any. + * @pid_filter: called to set/unset a PID for filtering. + * + * @read_mac_address: called to read the MAC address of the device. + * + * @frontend_attach: called to attach the possible frontends (fill fe-field + * of struct dvb_usb_device). + * @tuner_attach: called to attach the correct tuner and to fill pll_addr, + * pll_desc and pll_init_buf of struct dvb_usb_device). + * @identify_state: called to determine the state (cold or warm), when it + * is not distinguishable by the USB IDs. + * + * @rc_key_map: a hard-wired array of struct dvb_usb_rc_key (NULL to disable + * remote control handling). + * @rc_key_map_size: number of items in @rc_key_map. + * @rc_query: called to query an event event. + * @rc_interval: time in ms between two queries. + * + * @i2c_algo: i2c_algorithm if the device has I2CoverUSB. + * + * @generic_bulk_ctrl_endpoint: most of the DVB USB devices have a generic + * endpoint which received control messages with bulk transfers. When this + * is non-zero, one can use dvb_usb_generic_rw and dvb_usb_generic_write- + * helper functions. + * + * @urb: describes the kind of USB transfer used for MPEG2-TS-streaming. + * Currently only BULK is implemented + * + * @num_device_descs: number of struct dvb_usb_device_description in @devices + * @devices: array of struct dvb_usb_device_description compatibles with these + * properties. + */ +struct dvb_usb_properties { + +#define DVB_USB_HAS_PID_FILTER 0x01 +#define DVB_USB_PID_FILTER_CAN_BE_TURNED_OFF 0x02 +#define DVB_USB_NEED_PID_FILTERING 0x04 +#define DVB_USB_IS_AN_I2C_ADAPTER 0x08 + int caps; + int pid_filter_count; + +#define CYPRESS_AN2135 0 +#define CYPRESS_AN2235 1 +#define CYPRESS_FX2 2 + int usb_ctrl; + const char *firmware; + + int size_of_priv; + + int (*power_ctrl) (struct dvb_usb_device *, int); + int (*streaming_ctrl) (struct dvb_usb_device *, int); + int (*pid_filter_ctrl) (struct dvb_usb_device *, int); + int (*pid_filter) (struct dvb_usb_device *, int, u16, int); + + int (*read_mac_address) (struct dvb_usb_device *, u8 []); + int (*frontend_attach) (struct dvb_usb_device *); + int (*tuner_attach) (struct dvb_usb_device *); + + int (*identify_state) (struct usb_device *, struct dvb_usb_properties *, + struct dvb_usb_device_description **, int *); + +/* remote control properties */ +#define REMOTE_NO_KEY_PRESSED 0x00 +#define REMOTE_KEY_PRESSED 0x01 +#define REMOTE_KEY_REPEAT 0x02 + struct dvb_usb_rc_key *rc_key_map; + int rc_key_map_size; + int (*rc_query) (struct dvb_usb_device *, u32 *, int *); + int rc_interval; + + struct i2c_algorithm *i2c_algo; + + int generic_bulk_ctrl_endpoint; + + struct { +#define DVB_USB_BULK 1 +#define DVB_USB_ISOC 2 + int type; + int count; + int endpoint; + + union { + struct { + int buffersize; /* per URB */ + } bulk; + struct { + int framesperurb; + int framesize; + } isoc; + } u; + } urb; + + int num_device_descs; + struct dvb_usb_device_description devices[8]; +}; + + +/** + * struct dvb_usb_device - object of a DVB USB device + * @props: copy of the struct dvb_usb_properties this device belongs to. + * @desc: pointer to the device's struct dvb_usb_device_description. + * @state: initialization and runtime state of the device. + * + * @udev: pointer to the device's struct usb_device. + * @urb_list: array of dynamically allocated struct urb for the MPEG2-TS- + * streaming. + * @buffer: buffer used to streaming. + * @dma_handle: dma_addr_t for buffer. + * @urbs_initialized: number of URBs initialized. + * @urbs_submitted: number of URBs submitted. + * @feedcount: number of reqested feeds (used for streaming-activation) + * @pid_filtering: is hardware pid_filtering used or not. + * @usb_sem: semaphore of USB control messages (reading needs two messages) + * @i2c_sem: semaphore for i2c-transfers + * @i2c_adap: device's i2c_adapter if it uses I2CoverUSB + * @pll_addr: I2C address of the tuner for programming + * @pll_init: array containing the initialization buffer + * @pll_desc: pointer to the appropriate struct dvb_pll_desc + * @tuner_pass_ctrl: called to (de)activate tuner passthru of the demod + * @dvb_adap: device's dvb_adapter. + * @dmxdev: device's dmxdev. + * @demux: device's software demuxer. + * @dvb_net: device's dvb_net interfaces. + * @dvb_frontend: device's frontend. + * @max_feed_count: how many feeds can be handled simultaneously by this + * device + * @fe_sleep: rerouted frontend-sleep function. + * @fe_init: rerouted frontend-init (wakeup) function. + * @rc_input_dev: input device for the remote control. + * @rc_query_work: struct work_struct frequent rc queries + * @last_event: last triggered event + * @last_state: last state (no, pressed, repeat) + * @owner: owner of the dvb_adapter + * @priv: private data of the actual driver (allocate by dvb-usb, size defined + * in size_of_priv of dvb_usb_properties). + */ +struct dvb_usb_device { + struct dvb_usb_properties props; + struct dvb_usb_device_description *desc; + +#define DVB_USB_STATE_INIT 0x000 +#define DVB_USB_STATE_URB_LIST 0x001 +#define DVB_USB_STATE_URB_BUF 0x002 +#define DVB_USB_STATE_DVB 0x004 +#define DVB_USB_STATE_I2C 0x008 +#define DVB_USB_STATE_REMOTE 0x010 +#define DVB_USB_STATE_URB_SUBMIT 0x020 + int state; + + /* usb */ + struct usb_device *udev; + struct urb **urb_list; + u8 *buffer; + dma_addr_t dma_handle; + int urbs_initialized; + int urbs_submitted; + + int feedcount; + int pid_filtering; + + /* locking */ + struct semaphore usb_sem; + + /* i2c */ + struct semaphore i2c_sem; + struct i2c_adapter i2c_adap; + + /* tuner programming information */ + u8 pll_addr; + u8 pll_init[4]; + struct dvb_pll_desc *pll_desc; + int (*tuner_pass_ctrl)(struct dvb_frontend *, int, u8); + + /* dvb */ + struct dvb_adapter dvb_adap; + struct dmxdev dmxdev; + struct dvb_demux demux; + struct dvb_net dvb_net; + struct dvb_frontend* fe; + int max_feed_count; + + int (*fe_sleep) (struct dvb_frontend *); + int (*fe_init) (struct dvb_frontend *); + + /* remote control */ + struct input_dev rc_input_dev; + struct work_struct rc_query_work; + u32 last_event; + int last_state; + + struct module *owner; + + void *priv; +}; + +extern int dvb_usb_device_init(struct usb_interface *, struct dvb_usb_properties *, struct module *); +extern void dvb_usb_device_exit(struct usb_interface *); + +/* the generic read/write method for device control */ +extern int dvb_usb_generic_rw(struct dvb_usb_device *, u8 *, u16, u8 *, u16,int); +extern int dvb_usb_generic_write(struct dvb_usb_device *, u8 *, u16); + +/* commonly used remote control parsing */ +extern int dvb_usb_nec_rc_key_to_event(struct dvb_usb_device *, u8[], u32 *, int *); + +/* commonly used pll init and set functions */ +extern int dvb_usb_pll_init_i2c(struct dvb_frontend *); +extern int dvb_usb_pll_set(struct dvb_frontend *, struct dvb_frontend_parameters *, u8[]); +extern int dvb_usb_pll_set_i2c(struct dvb_frontend *, struct dvb_frontend_parameters *); + + +#endif |