426 lines
12 KiB
C
426 lines
12 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* hfcsusb.h, HFC-S USB mISDN driver
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*/
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#ifndef __HFCSUSB_H__
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#define __HFCSUSB_H__
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#define DRIVER_NAME "HFC-S_USB"
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#define DBG_HFC_CALL_TRACE 0x00010000
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#define DBG_HFC_FIFO_VERBOSE 0x00020000
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#define DBG_HFC_USB_VERBOSE 0x00100000
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#define DBG_HFC_URB_INFO 0x00200000
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#define DBG_HFC_URB_ERROR 0x00400000
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#define DEFAULT_TRANSP_BURST_SZ 128
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#define HFC_CTRL_TIMEOUT 20 /* 5ms timeout writing/reading regs */
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#define CLKDEL_TE 0x0f /* CLKDEL in TE mode */
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#define CLKDEL_NT 0x6c /* CLKDEL in NT mode */
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/* hfcsusb Layer1 commands */
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#define HFC_L1_ACTIVATE_TE 1
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#define HFC_L1_ACTIVATE_NT 2
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#define HFC_L1_DEACTIVATE_NT 3
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#define HFC_L1_FORCE_DEACTIVATE_TE 4
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/* cmd FLAGS in HFCUSB_STATES register */
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#define HFCUSB_LOAD_STATE 0x10
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#define HFCUSB_ACTIVATE 0x20
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#define HFCUSB_DO_ACTION 0x40
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#define HFCUSB_NT_G2_G3 0x80
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/* timers */
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#define NT_ACTIVATION_TIMER 0x01 /* enables NT mode activation Timer */
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#define NT_T1_COUNT 10
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#define MAX_BCH_SIZE 2048 /* allowed B-channel packet size */
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#define HFCUSB_RX_THRESHOLD 64 /* threshold for fifo report bit rx */
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#define HFCUSB_TX_THRESHOLD 96 /* threshold for fifo report bit tx */
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#define HFCUSB_CHIP_ID 0x16 /* Chip ID register index */
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#define HFCUSB_CIRM 0x00 /* cirm register index */
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#define HFCUSB_USB_SIZE 0x07 /* int length register */
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#define HFCUSB_USB_SIZE_I 0x06 /* iso length register */
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#define HFCUSB_F_CROSS 0x0b /* bit order register */
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#define HFCUSB_CLKDEL 0x37 /* bit delay register */
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#define HFCUSB_CON_HDLC 0xfa /* channel connect register */
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#define HFCUSB_HDLC_PAR 0xfb
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#define HFCUSB_SCTRL 0x31 /* S-bus control register (tx) */
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#define HFCUSB_SCTRL_E 0x32 /* same for E and special funcs */
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#define HFCUSB_SCTRL_R 0x33 /* S-bus control register (rx) */
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#define HFCUSB_F_THRES 0x0c /* threshold register */
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#define HFCUSB_FIFO 0x0f /* fifo select register */
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#define HFCUSB_F_USAGE 0x1a /* fifo usage register */
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#define HFCUSB_MST_MODE0 0x14
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#define HFCUSB_MST_MODE1 0x15
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#define HFCUSB_P_DATA 0x1f
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#define HFCUSB_INC_RES_F 0x0e
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#define HFCUSB_B1_SSL 0x20
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#define HFCUSB_B2_SSL 0x21
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#define HFCUSB_B1_RSL 0x24
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#define HFCUSB_B2_RSL 0x25
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#define HFCUSB_STATES 0x30
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#define HFCUSB_CHIPID 0x40 /* ID value of HFC-S USB */
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/* fifo registers */
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#define HFCUSB_NUM_FIFOS 8 /* maximum number of fifos */
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#define HFCUSB_B1_TX 0 /* index for B1 transmit bulk/int */
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#define HFCUSB_B1_RX 1 /* index for B1 receive bulk/int */
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#define HFCUSB_B2_TX 2
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#define HFCUSB_B2_RX 3
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#define HFCUSB_D_TX 4
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#define HFCUSB_D_RX 5
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#define HFCUSB_PCM_TX 6
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#define HFCUSB_PCM_RX 7
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#define USB_INT 0
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#define USB_BULK 1
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#define USB_ISOC 2
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#define ISOC_PACKETS_D 8
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#define ISOC_PACKETS_B 8
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#define ISO_BUFFER_SIZE 128
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/* defines how much ISO packets are handled in one URB */
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static int iso_packets[8] =
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{ ISOC_PACKETS_B, ISOC_PACKETS_B, ISOC_PACKETS_B, ISOC_PACKETS_B,
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ISOC_PACKETS_D, ISOC_PACKETS_D, ISOC_PACKETS_D, ISOC_PACKETS_D
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};
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/* Fifo flow Control for TX ISO */
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#define SINK_MAX 68
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#define SINK_MIN 48
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#define SINK_DMIN 12
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#define SINK_DMAX 18
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#define BITLINE_INF (-96 * 8)
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/* HFC-S USB register access by Control-URSs */
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#define write_reg_atomic(a, b, c) \
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usb_control_msg((a)->dev, (a)->ctrl_out_pipe, 0, 0x40, (c), (b), \
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0, 0, HFC_CTRL_TIMEOUT)
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#define read_reg_atomic(a, b, c) \
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usb_control_msg((a)->dev, (a)->ctrl_in_pipe, 1, 0xC0, 0, (b), (c), \
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1, HFC_CTRL_TIMEOUT)
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#define HFC_CTRL_BUFSIZE 64
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struct ctrl_buf {
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__u8 hfcs_reg; /* register number */
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__u8 reg_val; /* value to be written (or read) */
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};
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/*
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* URB error codes
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* Used to represent a list of values and their respective symbolic names
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*/
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struct hfcusb_symbolic_list {
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const int num;
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const char *name;
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};
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static struct hfcusb_symbolic_list urb_errlist[] = {
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{-ENOMEM, "No memory for allocation of internal structures"},
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{-ENOSPC, "The host controller's bandwidth is already consumed"},
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{-ENOENT, "URB was canceled by unlink_urb"},
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{-EXDEV, "ISO transfer only partially completed"},
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{-EAGAIN, "Too match scheduled for the future"},
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{-ENXIO, "URB already queued"},
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{-EFBIG, "Too much ISO frames requested"},
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{-ENOSR, "Buffer error (overrun)"},
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{-EPIPE, "Specified endpoint is stalled (device not responding)"},
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{-EOVERFLOW, "Babble (bad cable?)"},
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{-EPROTO, "Bit-stuff error (bad cable?)"},
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{-EILSEQ, "CRC/Timeout"},
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{-ETIMEDOUT, "NAK (device does not respond)"},
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{-ESHUTDOWN, "Device unplugged"},
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{-1, NULL}
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};
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static inline const char *
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symbolic(struct hfcusb_symbolic_list list[], const int num)
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{
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int i;
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for (i = 0; list[i].name != NULL; i++)
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if (list[i].num == num)
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return list[i].name;
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return "<unknown USB Error>";
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}
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/* USB descriptor need to contain one of the following EndPoint combination: */
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#define CNF_4INT3ISO 1 /* 4 INT IN, 3 ISO OUT */
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#define CNF_3INT3ISO 2 /* 3 INT IN, 3 ISO OUT */
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#define CNF_4ISO3ISO 3 /* 4 ISO IN, 3 ISO OUT */
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#define CNF_3ISO3ISO 4 /* 3 ISO IN, 3 ISO OUT */
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#define EP_NUL 1 /* Endpoint at this position not allowed */
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#define EP_NOP 2 /* all type of endpoints allowed at this position */
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#define EP_ISO 3 /* Isochron endpoint mandatory at this position */
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#define EP_BLK 4 /* Bulk endpoint mandatory at this position */
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#define EP_INT 5 /* Interrupt endpoint mandatory at this position */
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#define HFC_CHAN_B1 0
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#define HFC_CHAN_B2 1
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#define HFC_CHAN_D 2
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#define HFC_CHAN_E 3
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/*
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* List of all supported enpoints configiration sets, used to find the
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* best matching endpoint configuration within a devices' USB descriptor.
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* We need at least 3 RX endpoints, and 3 TX endpoints, either
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* INT-in and ISO-out, or ISO-in and ISO-out)
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* with 4 RX endpoints even E-Channel logging is possible
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*/
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static int
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validconf[][19] = {
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/* INT in, ISO out config */
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{EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NOP, EP_INT,
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EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_NUL, EP_NUL,
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CNF_4INT3ISO, 2, 1},
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{EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_NUL,
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EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_NUL, EP_NUL,
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CNF_3INT3ISO, 2, 0},
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/* ISO in, ISO out config */
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{EP_NOP, EP_NOP, EP_NOP, EP_NOP, EP_NOP, EP_NOP, EP_NOP, EP_NOP,
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EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_NOP, EP_ISO,
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CNF_4ISO3ISO, 2, 1},
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{EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL,
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EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_NUL, EP_NUL,
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CNF_3ISO3ISO, 2, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* EOL element */
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};
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/* string description of chosen config */
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static char *conf_str[] = {
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"4 Interrupt IN + 3 Isochron OUT",
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"3 Interrupt IN + 3 Isochron OUT",
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"4 Isochron IN + 3 Isochron OUT",
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"3 Isochron IN + 3 Isochron OUT"
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};
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#define LED_OFF 0 /* no LED support */
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#define LED_SCHEME1 1 /* LED standard scheme */
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#define LED_SCHEME2 2 /* not used yet... */
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#define LED_POWER_ON 1
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#define LED_POWER_OFF 2
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#define LED_S0_ON 3
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#define LED_S0_OFF 4
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#define LED_B1_ON 5
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#define LED_B1_OFF 6
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#define LED_B1_DATA 7
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#define LED_B2_ON 8
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#define LED_B2_OFF 9
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#define LED_B2_DATA 10
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#define LED_NORMAL 0 /* LEDs are normal */
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#define LED_INVERTED 1 /* LEDs are inverted */
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/* time in ms to perform a Flashing LED when B-Channel has traffic */
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#define LED_TIME 250
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struct hfcsusb;
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struct usb_fifo;
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/* structure defining input+output fifos (interrupt/bulk mode) */
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struct iso_urb {
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struct urb *urb;
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__u8 buffer[ISO_BUFFER_SIZE]; /* buffer rx/tx USB URB data */
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struct usb_fifo *owner_fifo; /* pointer to owner fifo */
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__u8 indx; /* Fifos's ISO double buffer 0 or 1 ? */
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#ifdef ISO_FRAME_START_DEBUG
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int start_frames[ISO_FRAME_START_RING_COUNT];
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__u8 iso_frm_strt_pos; /* index in start_frame[] */
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#endif
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};
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struct usb_fifo {
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int fifonum; /* fifo index attached to this structure */
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int active; /* fifo is currently active */
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struct hfcsusb *hw; /* pointer to main structure */
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int pipe; /* address of endpoint */
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__u8 usb_packet_maxlen; /* maximum length for usb transfer */
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unsigned int max_size; /* maximum size of receive/send packet */
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__u8 intervall; /* interrupt interval */
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struct urb *urb; /* transfer structure for usb routines */
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__u8 buffer[128]; /* buffer USB INT OUT URB data */
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int bit_line; /* how much bits are in the fifo? */
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__u8 usb_transfer_mode; /* switched between ISO and INT */
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struct iso_urb iso[2]; /* two urbs to have one always
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one pending */
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struct dchannel *dch; /* link to hfcsusb_t->dch */
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struct bchannel *bch; /* link to hfcsusb_t->bch */
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struct dchannel *ech; /* link to hfcsusb_t->ech, TODO: E-CHANNEL */
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int last_urblen; /* remember length of last packet */
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__u8 stop_gracefull; /* stops URB retransmission */
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};
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struct hfcsusb {
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struct list_head list;
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struct dchannel dch;
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struct bchannel bch[2];
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struct dchannel ech; /* TODO : wait for struct echannel ;) */
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struct usb_device *dev; /* our device */
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struct usb_interface *intf; /* used interface */
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int if_used; /* used interface number */
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int alt_used; /* used alternate config */
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int cfg_used; /* configuration index used */
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int vend_idx; /* index in hfcsusb_idtab */
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int packet_size;
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int iso_packet_size;
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struct usb_fifo fifos[HFCUSB_NUM_FIFOS];
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/* control pipe background handling */
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struct ctrl_buf ctrl_buff[HFC_CTRL_BUFSIZE];
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int ctrl_in_idx, ctrl_out_idx, ctrl_cnt;
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struct urb *ctrl_urb;
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struct usb_ctrlrequest ctrl_write;
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struct usb_ctrlrequest ctrl_read;
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int ctrl_paksize;
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int ctrl_in_pipe, ctrl_out_pipe;
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spinlock_t ctrl_lock; /* lock for ctrl */
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spinlock_t lock;
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__u8 threshold_mask;
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__u8 led_state;
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__u8 protocol;
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int nt_timer;
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int open;
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__u8 timers;
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__u8 initdone;
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char name[MISDN_MAX_IDLEN];
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};
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/* private vendor specific data */
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struct hfcsusb_vdata {
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__u8 led_scheme; /* led display scheme */
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signed short led_bits[8]; /* array of 8 possible LED bitmask */
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char *vend_name; /* device name */
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};
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#define HFC_MAX_TE_LAYER1_STATE 8
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#define HFC_MAX_NT_LAYER1_STATE 4
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static const char *HFC_TE_LAYER1_STATES[HFC_MAX_TE_LAYER1_STATE + 1] = {
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"TE F0 - Reset",
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"TE F1 - Reset",
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"TE F2 - Sensing",
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"TE F3 - Deactivated",
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"TE F4 - Awaiting signal",
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"TE F5 - Identifying input",
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"TE F6 - Synchronized",
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"TE F7 - Activated",
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"TE F8 - Lost framing",
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};
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static const char *HFC_NT_LAYER1_STATES[HFC_MAX_NT_LAYER1_STATE + 1] = {
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"NT G0 - Reset",
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"NT G1 - Deactive",
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"NT G2 - Pending activation",
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"NT G3 - Active",
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"NT G4 - Pending deactivation",
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};
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/* supported devices */
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static const struct usb_device_id hfcsusb_idtab[] = {
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{
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USB_DEVICE(0x0959, 0x2bd0),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_OFF, {4, 0, 2, 1},
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"ISDN USB TA (Cologne Chip HFC-S USB based)"}),
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},
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{
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USB_DEVICE(0x0675, 0x1688),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {1, 2, 0, 0},
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"DrayTek miniVigor 128 USB ISDN TA"}),
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},
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{
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USB_DEVICE(0x07b0, 0x0007),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {0x80, -64, -32, -16},
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"Billion tiny USB ISDN TA 128"}),
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},
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{
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USB_DEVICE(0x0742, 0x2008),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {4, 0, 2, 1},
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"Stollmann USB TA"}),
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},
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{
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USB_DEVICE(0x0742, 0x2009),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {4, 0, 2, 1},
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"Aceex USB ISDN TA"}),
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},
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{
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USB_DEVICE(0x0742, 0x200A),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {4, 0, 2, 1},
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"OEM USB ISDN TA"}),
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},
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{
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USB_DEVICE(0x08e3, 0x0301),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {2, 0, 1, 4},
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"Olitec USB RNIS"}),
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},
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{
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USB_DEVICE(0x07fa, 0x0846),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {0x80, -64, -32, -16},
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"Bewan Modem RNIS USB"}),
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},
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{
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USB_DEVICE(0x07fa, 0x0847),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {0x80, -64, -32, -16},
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"Djinn Numeris USB"}),
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},
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{
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USB_DEVICE(0x07b0, 0x0006),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {0x80, -64, -32, -16},
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"Twister ISDN TA"}),
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},
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{
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USB_DEVICE(0x071d, 0x1005),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {0x02, 0, 0x01, 0x04},
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"Eicon DIVA USB 4.0"}),
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},
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{
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USB_DEVICE(0x0586, 0x0102),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {0x88, -64, -32, -16},
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"ZyXEL OMNI.NET USB II"}),
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},
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{
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USB_DEVICE(0x1ae7, 0x0525),
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.driver_info = (unsigned long) &((struct hfcsusb_vdata)
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{LED_SCHEME1, {0x88, -64, -32, -16},
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"X-Tensions USB ISDN TA XC-525"}),
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},
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{ }
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};
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MODULE_DEVICE_TABLE(usb, hfcsusb_idtab);
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#endif /* __HFCSUSB_H__ */
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