Release 4.14 drivers/isdn/hisax/hfc_usb.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
* hfc_usb.h
*
* $Id: hfc_usb.h,v 1.1.2.5 2007/08/20 14:36:03 mbachem Exp $
*/
#ifndef __HFC_USB_H__
#define __HFC_USB_H__
#define DRIVER_AUTHOR "Peter Sprenger (sprenger@moving-byters.de)"
#define DRIVER_DESC "HFC-S USB based HiSAX ISDN driver"
#define HFC_CTRL_TIMEOUT 20
/* 5ms timeout writing/reading regs */
#define HFC_TIMER_T3 8000
/* timeout for l1 activation timer */
#define HFC_TIMER_T4 500
/* time for state change interval */
#define HFCUSB_L1_STATECHANGE 0
/* L1 state changed */
#define HFCUSB_L1_DRX 1
/* D-frame received */
#define HFCUSB_L1_ERX 2
/* E-frame received */
#define HFCUSB_L1_DTX 4
/* D-frames completed */
#define MAX_BCH_SIZE 2048
/* allowed B-channel packet size */
#define HFCUSB_RX_THRESHOLD 64
/* threshold for fifo report bit rx */
#define HFCUSB_TX_THRESHOLD 64
/* threshold for fifo report bit tx */
#define HFCUSB_CHIP_ID 0x16
/* Chip ID register index */
#define HFCUSB_CIRM 0x00
/* cirm register index */
#define HFCUSB_USB_SIZE 0x07
/* int length register */
#define HFCUSB_USB_SIZE_I 0x06
/* iso length register */
#define HFCUSB_F_CROSS 0x0b
/* bit order register */
#define HFCUSB_CLKDEL 0x37
/* bit delay register */
#define HFCUSB_CON_HDLC 0xfa
/* channel connect register */
#define HFCUSB_HDLC_PAR 0xfb
#define HFCUSB_SCTRL 0x31
/* S-bus control register (tx) */
#define HFCUSB_SCTRL_E 0x32
/* same for E and special funcs */
#define HFCUSB_SCTRL_R 0x33
/* S-bus control register (rx) */
#define HFCUSB_F_THRES 0x0c
/* threshold register */
#define HFCUSB_FIFO 0x0f
/* fifo select register */
#define HFCUSB_F_USAGE 0x1a
/* fifo usage register */
#define HFCUSB_MST_MODE0 0x14
#define HFCUSB_MST_MODE1 0x15
#define HFCUSB_P_DATA 0x1f
#define HFCUSB_INC_RES_F 0x0e
#define HFCUSB_STATES 0x30
#define HFCUSB_CHIPID 0x40
/* ID value of HFC-S USB */
/* fifo registers */
#define HFCUSB_NUM_FIFOS 8
/* maximum number of fifos */
#define HFCUSB_B1_TX 0
/* index for B1 transmit bulk/int */
#define HFCUSB_B1_RX 1
/* index for B1 receive bulk/int */
#define HFCUSB_B2_TX 2
#define HFCUSB_B2_RX 3
#define HFCUSB_D_TX 4
#define HFCUSB_D_RX 5
#define HFCUSB_PCM_TX 6
#define HFCUSB_PCM_RX 7
/*
* used to switch snd_transfer_mode for different TA modes e.g. the Billion USB TA just
* supports ISO out, while the Cologne Chip EVAL TA just supports BULK out
*/
#define USB_INT 0
#define USB_BULK 1
#define USB_ISOC 2
#define ISOC_PACKETS_D 8
#define ISOC_PACKETS_B 8
#define ISO_BUFFER_SIZE 128
/* Fifo flow Control for TX ISO */
#define SINK_MAX 68
#define SINK_MIN 48
#define SINK_DMIN 12
#define SINK_DMAX 18
#define BITLINE_INF (-64 * 8)
/* HFC-S USB register access by Control-URSs */
#define write_usb(a, b, c) usb_control_msg((a)->dev, (a)->ctrl_out_pipe, 0, 0x40, (c), (b), NULL, 0, HFC_CTRL_TIMEOUT)
#define read_usb(a, b, c) usb_control_msg((a)->dev, (a)->ctrl_in_pipe, 1, 0xC0, 0, (b), (c), 1, HFC_CTRL_TIMEOUT)
#define HFC_CTRL_BUFSIZE 32
/* entry and size of output/input control buffer */
typedef struct {
__u8 hfc_reg; /* register number */
__u8 reg_val; /* value to be written (or read) */
int action; /* data for action handler */
} ctrl_buft;
/* Debugging Flags */
#define HFCUSB_DBG_INIT 0x0001
#define HFCUSB_DBG_STATES 0x0002
#define HFCUSB_DBG_DCHANNEL 0x0080
#define HFCUSB_DBG_FIFO_ERR 0x4000
#define HFCUSB_DBG_VERBOSE_USB 0x8000
/*
* URB error codes:
* Used to represent a list of values and their respective symbolic names
*/
struct hfcusb_symbolic_list {
const int num;
const char *name;
};
static struct hfcusb_symbolic_list urb_errlist[] = {
{-ENOMEM, "No memory for allocation of internal structures"},
{-ENOSPC, "The host controller's bandwidth is already consumed"},
{-ENOENT, "URB was canceled by unlink_urb"},
{-EXDEV, "ISO transfer only partially completed"},
{-EAGAIN, "Too match scheduled for the future"},
{-ENXIO, "URB already queued"},
{-EFBIG, "Too much ISO frames requested"},
{-ENOSR, "Buffer error (overrun)"},
{-EPIPE, "Specified endpoint is stalled (device not responding)"},
{-EOVERFLOW, "Babble (bad cable?)"},
{-EPROTO, "Bit-stuff error (bad cable?)"},
{-EILSEQ, "CRC/Timeout"},
{-ETIMEDOUT, "NAK (device does not respond)"},
{-ESHUTDOWN, "Device unplugged"},
{-1, NULL}
};
/*
* device dependent information to support different
* ISDN Ta's using the HFC-S USB chip
*/
/* USB descriptor need to contain one of the following EndPoint combination: */
#define CNF_4INT3ISO 1
// 4 INT IN, 3 ISO OUT
#define CNF_3INT3ISO 2
// 3 INT IN, 3 ISO OUT
#define CNF_4ISO3ISO 3
// 4 ISO IN, 3 ISO OUT
#define CNF_3ISO3ISO 4
// 3 ISO IN, 3 ISO OUT
#define EP_NUL 1
// Endpoint at this position not allowed
#define EP_NOP 2
// all type of endpoints allowed at this position
#define EP_ISO 3
// Isochron endpoint mandatory at this position
#define EP_BLK 4
// Bulk endpoint mandatory at this position
#define EP_INT 5
// Interrupt endpoint mandatory at this position
/*
* List of all supported endpoint configuration sets, used to find the
* best matching endpoint configuration within a devices' USB descriptor.
* We need at least 3 RX endpoints, and 3 TX endpoints, either
* INT-in and ISO-out, or ISO-in and ISO-out)
* with 4 RX endpoints even E-Channel logging is possible
*/
static int validconf[][19] = {
// INT in, ISO out config
{EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NOP, EP_INT,
EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_NUL, EP_NUL,
CNF_4INT3ISO, 2, 1},
{EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_NUL,
EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_NUL, EP_NUL,
CNF_3INT3ISO, 2, 0},
// ISO in, ISO out config
{EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL,
EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_NOP, EP_ISO,
CNF_4ISO3ISO, 2, 1},
{EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL,
EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_NUL, EP_NUL,
CNF_3ISO3ISO, 2, 0},
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} // EOL element
};
#ifdef CONFIG_HISAX_DEBUG
// string description of chosen config
static char *conf_str[] = {
"4 Interrupt IN + 3 Isochron OUT",
"3 Interrupt IN + 3 Isochron OUT",
"4 Isochron IN + 3 Isochron OUT",
"3 Isochron IN + 3 Isochron OUT"
};
#endif
typedef struct {
int vendor; // vendor id
int prod_id; // product id
char *vend_name; // vendor string
__u8 led_scheme; // led display scheme
signed short led_bits[8]; // array of 8 possible LED bitmask settings
} vendor_data;
#define LED_OFF 0
// no LED support
#define LED_SCHEME1 1
// LED standard scheme
#define LED_SCHEME2 2
// not used yet...
#define LED_POWER_ON 1
#define LED_POWER_OFF 2
#define LED_S0_ON 3
#define LED_S0_OFF 4
#define LED_B1_ON 5
#define LED_B1_OFF 6
#define LED_B1_DATA 7
#define LED_B2_ON 8
#define LED_B2_OFF 9
#define LED_B2_DATA 10
#define LED_NORMAL 0
// LEDs are normal
#define LED_INVERTED 1
// LEDs are inverted
#endif // __HFC_USB_H__
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