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authorJohannes Stezenbach <js@linuxtv.org>2005-06-23 22:02:35 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-24 00:05:30 -0700
commit776338e121b9db3156bfb4e21622a0219bbab9d4 (patch)
tree5102272b708a9e8ff81165714870d3d38363cc23 /drivers/media/dvb/dvb-usb/dvb-usb.h
parentb6a235b1186dda0800c8bedc2526830a4a36b44e (diff)
[PATCH] dvb: Add generalized dvb-usb driver
Add generalized dvb-usb driver which supports a wide variety of devices. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/media/dvb/dvb-usb/dvb-usb.h')
-rw-r--r--drivers/media/dvb/dvb-usb/dvb-usb.h315
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 000000000000..abcee1943f64
--- /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