407 lines
14 KiB
C
407 lines
14 KiB
C
/*
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*
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*
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* Copyright (C) 2005 Mike Isely <isely@pobox.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef __PVRUSB2_HDW_INTERNAL_H
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#define __PVRUSB2_HDW_INTERNAL_H
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/*
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This header sets up all the internal structures and definitions needed to
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track and coordinate the driver's interaction with the hardware. ONLY
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source files which actually implement part of that whole circus should be
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including this header. Higher levels, like the external layers to the
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various public APIs (V4L, sysfs, etc) should NOT ever include this
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private, internal header. This means that pvrusb2-hdw, pvrusb2-encoder,
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etc will include this, but pvrusb2-v4l should not.
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*/
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#include <linux/videodev2.h>
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#include <linux/i2c.h>
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#include <linux/workqueue.h>
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#include <linux/mutex.h>
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#include "pvrusb2-hdw.h"
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#include "pvrusb2-io.h"
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#include <media/v4l2-device.h>
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#include <media/cx2341x.h>
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#include "pvrusb2-devattr.h"
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/* Legal values for PVR2_CID_HSM */
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#define PVR2_CVAL_HSM_FAIL 0
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#define PVR2_CVAL_HSM_FULL 1
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#define PVR2_CVAL_HSM_HIGH 2
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#define PVR2_VID_ENDPOINT 0x84
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#define PVR2_UNK_ENDPOINT 0x86 /* maybe raw yuv ? */
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#define PVR2_VBI_ENDPOINT 0x88
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#define PVR2_CTL_BUFFSIZE 64
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#define FREQTABLE_SIZE 500
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#define LOCK_TAKE(x) do { mutex_lock(&x##_mutex); x##_held = !0; } while (0)
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#define LOCK_GIVE(x) do { x##_held = 0; mutex_unlock(&x##_mutex); } while (0)
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typedef int (*pvr2_ctlf_is_dirty)(struct pvr2_ctrl *);
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typedef void (*pvr2_ctlf_clear_dirty)(struct pvr2_ctrl *);
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typedef int (*pvr2_ctlf_check_value)(struct pvr2_ctrl *,int);
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typedef int (*pvr2_ctlf_get_value)(struct pvr2_ctrl *,int *);
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typedef int (*pvr2_ctlf_set_value)(struct pvr2_ctrl *,int msk,int val);
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typedef int (*pvr2_ctlf_val_to_sym)(struct pvr2_ctrl *,int msk,int val,
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char *,unsigned int,unsigned int *);
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typedef int (*pvr2_ctlf_sym_to_val)(struct pvr2_ctrl *,
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const char *,unsigned int,
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int *mskp,int *valp);
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typedef unsigned int (*pvr2_ctlf_get_v4lflags)(struct pvr2_ctrl *);
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/* This structure describes a specific control. A table of these is set up
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in pvrusb2-hdw.c. */
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struct pvr2_ctl_info {
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/* Control's name suitable for use as an identifier */
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const char *name;
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/* Short description of control */
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const char *desc;
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/* Control's implementation */
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pvr2_ctlf_get_value get_value; /* Get its value */
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pvr2_ctlf_get_value get_def_value; /* Get its default value */
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pvr2_ctlf_get_value get_min_value; /* Get minimum allowed value */
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pvr2_ctlf_get_value get_max_value; /* Get maximum allowed value */
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pvr2_ctlf_set_value set_value; /* Set its value */
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pvr2_ctlf_check_value check_value; /* Check that value is valid */
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pvr2_ctlf_val_to_sym val_to_sym; /* Custom convert value->symbol */
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pvr2_ctlf_sym_to_val sym_to_val; /* Custom convert symbol->value */
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pvr2_ctlf_is_dirty is_dirty; /* Return true if dirty */
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pvr2_ctlf_clear_dirty clear_dirty; /* Clear dirty state */
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pvr2_ctlf_get_v4lflags get_v4lflags;/* Retrieve v4l flags */
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/* Control's type (int, enum, bitmask) */
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enum pvr2_ctl_type type;
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/* Associated V4L control ID, if any */
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int v4l_id;
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/* Associated driver internal ID, if any */
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int internal_id;
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/* Don't implicitly initialize this control's value */
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int skip_init;
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/* Starting value for this control */
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int default_value;
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/* Type-specific control information */
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union {
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struct { /* Integer control */
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long min_value; /* lower limit */
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long max_value; /* upper limit */
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} type_int;
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struct { /* enumerated control */
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unsigned int count; /* enum value count */
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const char **value_names; /* symbol names */
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} type_enum;
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struct { /* bitmask control */
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unsigned int valid_bits; /* bits in use */
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const char **bit_names; /* symbol name/bit */
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} type_bitmask;
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} def;
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};
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/* Same as pvr2_ctl_info, but includes storage for the control description */
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#define PVR2_CTLD_INFO_DESC_SIZE 32
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struct pvr2_ctld_info {
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struct pvr2_ctl_info info;
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char desc[PVR2_CTLD_INFO_DESC_SIZE];
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};
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struct pvr2_ctrl {
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const struct pvr2_ctl_info *info;
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struct pvr2_hdw *hdw;
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};
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/* Disposition of firmware1 loading situation */
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#define FW1_STATE_UNKNOWN 0
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#define FW1_STATE_MISSING 1
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#define FW1_STATE_FAILED 2
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#define FW1_STATE_RELOAD 3
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#define FW1_STATE_OK 4
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/* What state the device is in if it is a hybrid */
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#define PVR2_PATHWAY_UNKNOWN 0
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#define PVR2_PATHWAY_ANALOG 1
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#define PVR2_PATHWAY_DIGITAL 2
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typedef int (*pvr2_i2c_func)(struct pvr2_hdw *,u8,u8 *,u16,u8 *, u16);
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#define PVR2_I2C_FUNC_CNT 128
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/* This structure contains all state data directly needed to
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manipulate the hardware (as opposed to complying with a kernel
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interface) */
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struct pvr2_hdw {
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/* Underlying USB device handle */
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struct usb_device *usb_dev;
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struct usb_interface *usb_intf;
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/* Our handle into the v4l2 sub-device architecture */
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struct v4l2_device v4l2_dev;
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/* Device description, anything that must adjust behavior based on
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device specific info will use information held here. */
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const struct pvr2_device_desc *hdw_desc;
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/* Kernel worker thread handling */
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struct workqueue_struct *workqueue;
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struct work_struct workpoll; /* Update driver state */
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/* Video spigot */
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struct pvr2_stream *vid_stream;
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/* Mutex for all hardware state control */
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struct mutex big_lock_mutex;
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int big_lock_held; /* For debugging */
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/* This is a simple string which identifies the instance of this
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driver. It is unique within the set of existing devices, but
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there is no attempt to keep the name consistent with the same
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physical device each time. */
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char name[32];
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/* This is a simple string which identifies the physical device
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instance itself - if possible. (If not possible, then it is
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based on the specific driver instance, similar to name above.)
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The idea here is that userspace might hopefully be able to use
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this recognize specific tuners. It will encode a serial number,
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if available. */
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char identifier[32];
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/* I2C stuff */
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struct i2c_adapter i2c_adap;
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struct i2c_algorithm i2c_algo;
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pvr2_i2c_func i2c_func[PVR2_I2C_FUNC_CNT];
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int i2c_cx25840_hack_state;
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int i2c_linked;
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/* IR related */
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unsigned int ir_scheme_active; /* IR scheme as seen from the outside */
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/* Frequency table */
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unsigned int freqTable[FREQTABLE_SIZE];
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unsigned int freqProgSlot;
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/* Stuff for handling low level control interaction with device */
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struct mutex ctl_lock_mutex;
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int ctl_lock_held; /* For debugging */
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struct urb *ctl_write_urb;
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struct urb *ctl_read_urb;
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unsigned char *ctl_write_buffer;
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unsigned char *ctl_read_buffer;
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int ctl_write_pend_flag;
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int ctl_read_pend_flag;
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int ctl_timeout_flag;
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struct completion ctl_done;
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unsigned char cmd_buffer[PVR2_CTL_BUFFSIZE];
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int cmd_debug_state; // Low level command debugging info
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unsigned char cmd_debug_code; //
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unsigned int cmd_debug_write_len; //
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unsigned int cmd_debug_read_len; //
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/* Bits of state that describe what is going on with various parts
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of the driver. */
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int state_pathway_ok; /* Pathway config is ok */
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int state_encoder_ok; /* Encoder is operational */
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int state_encoder_run; /* Encoder is running */
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int state_encoder_config; /* Encoder is configured */
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int state_encoder_waitok; /* Encoder pre-wait done */
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int state_encoder_runok; /* Encoder has run for >= .25 sec */
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int state_decoder_run; /* Decoder is running */
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int state_decoder_ready; /* Decoder is stabilized & streamable */
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int state_usbstream_run; /* FX2 is streaming */
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int state_decoder_quiescent; /* Decoder idle for minimal interval */
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int state_pipeline_config; /* Pipeline is configured */
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int state_pipeline_req; /* Somebody wants to stream */
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int state_pipeline_pause; /* Pipeline must be paused */
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int state_pipeline_idle; /* Pipeline not running */
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/* This is the master state of the driver. It is the combined
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result of other bits of state. Examining this will indicate the
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overall state of the driver. Values here are one of
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PVR2_STATE_xxxx */
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unsigned int master_state;
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/* True if device led is currently on */
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int led_on;
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/* True if states must be re-evaluated */
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int state_stale;
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void (*state_func)(void *);
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void *state_data;
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/* Timer for measuring required decoder settling time before we're
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allowed to fire it up again. */
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struct timer_list quiescent_timer;
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/* Timer for measuring decoder stabilization time, which is the
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amount of time we need to let the decoder run before we can
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trust its output (otherwise the encoder might see garbage and
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then fail to start correctly). */
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struct timer_list decoder_stabilization_timer;
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/* Timer for measuring encoder pre-wait time */
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struct timer_list encoder_wait_timer;
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/* Timer for measuring encoder minimum run time */
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struct timer_list encoder_run_timer;
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/* Place to block while waiting for state changes */
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wait_queue_head_t state_wait_data;
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int force_dirty; /* consider all controls dirty if true */
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int flag_ok; /* device in known good state */
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int flag_modulefail; /* true if at least one module failed to load */
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int flag_disconnected; /* flag_ok == 0 due to disconnect */
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int flag_init_ok; /* true if structure is fully initialized */
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int fw1_state; /* current situation with fw1 */
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int pathway_state; /* one of PVR2_PATHWAY_xxx */
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int flag_decoder_missed;/* We've noticed missing decoder */
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int flag_tripped; /* Indicates overall failure to start */
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unsigned int decoder_client_id;
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// CPU firmware info (used to help find / save firmware data)
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char *fw_buffer;
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unsigned int fw_size;
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int fw_cpu_flag; /* True if we are dealing with the CPU */
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/* Tuner / frequency control stuff */
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unsigned int tuner_type;
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int tuner_updated;
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unsigned int freqValTelevision; /* Current freq for tv mode */
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unsigned int freqValRadio; /* Current freq for radio mode */
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unsigned int freqSlotTelevision; /* Current slot for tv mode */
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unsigned int freqSlotRadio; /* Current slot for radio mode */
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unsigned int freqSelector; /* 0=radio 1=television */
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int freqDirty;
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/* Current tuner info - this information is polled from the I2C bus */
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struct v4l2_tuner tuner_signal_info;
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int tuner_signal_stale;
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/* Cropping capability info */
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struct v4l2_cropcap cropcap_info;
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int cropcap_stale;
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/* Video standard handling */
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v4l2_std_id std_mask_eeprom; // Hardware supported selections
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v4l2_std_id std_mask_avail; // Which standards we may select from
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v4l2_std_id std_mask_cur; // Currently selected standard(s)
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unsigned int std_enum_cnt; // # of enumerated standards
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int std_enum_cur; // selected standard enumeration value
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int std_dirty; // True if std_mask_cur has changed
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struct pvr2_ctl_info std_info_enum;
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struct pvr2_ctl_info std_info_avail;
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struct pvr2_ctl_info std_info_cur;
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struct v4l2_standard *std_defs;
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const char **std_enum_names;
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// Generated string names, one per actual V4L2 standard
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const char *std_mask_ptrs[32];
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char std_mask_names[32][10];
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int unit_number; /* ID for driver instance */
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unsigned long serial_number; /* ID for hardware itself */
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char bus_info[32]; /* Bus location info */
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/* Minor numbers used by v4l logic (yes, this is a hack, as there
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should be no v4l junk here). Probably a better way to do this. */
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int v4l_minor_number_video;
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int v4l_minor_number_vbi;
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int v4l_minor_number_radio;
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/* Bit mask of PVR2_CVAL_INPUT choices which are valid for the hardware */
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unsigned int input_avail_mask;
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/* Bit mask of PVR2_CVAL_INPUT choices which are currently allowed */
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unsigned int input_allowed_mask;
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/* Location of eeprom or a negative number if none */
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int eeprom_addr;
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enum pvr2_config active_stream_type;
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enum pvr2_config desired_stream_type;
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/* Control state needed for cx2341x module */
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struct cx2341x_mpeg_params enc_cur_state;
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struct cx2341x_mpeg_params enc_ctl_state;
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/* True if an encoder attribute has changed */
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int enc_stale;
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/* True if an unsafe encoder attribute has changed */
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int enc_unsafe_stale;
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/* True if enc_cur_state is valid */
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int enc_cur_valid;
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/* Control state */
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#define VCREATE_DATA(lab) int lab##_val; int lab##_dirty
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VCREATE_DATA(brightness);
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VCREATE_DATA(contrast);
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VCREATE_DATA(saturation);
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VCREATE_DATA(hue);
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VCREATE_DATA(volume);
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VCREATE_DATA(balance);
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VCREATE_DATA(bass);
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VCREATE_DATA(treble);
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VCREATE_DATA(mute);
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VCREATE_DATA(cropl);
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VCREATE_DATA(cropt);
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VCREATE_DATA(cropw);
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VCREATE_DATA(croph);
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VCREATE_DATA(input);
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VCREATE_DATA(audiomode);
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VCREATE_DATA(res_hor);
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VCREATE_DATA(res_ver);
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VCREATE_DATA(srate);
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#undef VCREATE_DATA
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struct pvr2_ctld_info *mpeg_ctrl_info;
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struct pvr2_ctrl *controls;
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unsigned int control_cnt;
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};
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/* This function gets the current frequency */
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unsigned long pvr2_hdw_get_cur_freq(struct pvr2_hdw *);
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void pvr2_hdw_status_poll(struct pvr2_hdw *);
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#endif /* __PVRUSB2_HDW_INTERNAL_H */
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/*
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Stuff for Emacs to see, in order to encourage consistent editing style:
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*** Local Variables: ***
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*** mode: c ***
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*** fill-column: 75 ***
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*** tab-width: 8 ***
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*** c-basic-offset: 8 ***
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*** End: ***
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*/
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