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authorArnd Bergmann <arnd@arndb.de>2019-04-18 22:47:35 +0200
committerArnd Bergmann <arnd@arndb.de>2019-05-31 11:12:45 +0200
commit85993b8c9786fb24975dbcabebb1c75790d4fb6a (patch)
tree48b6d667c6258b44a4915acbd403f17c1b1c9cf5 /drivers/isdn/hisax/hfc_usb.h
parentisdn: gigaset: remove i4l support (diff)
downloadlinux-85993b8c9786fb24975dbcabebb1c75790d4fb6a.tar.xz
linux-85993b8c9786fb24975dbcabebb1c75790d4fb6a.zip
isdn: remove hisax driver
With the decline of ISDN, this seems to have become almost completely obsolete, and even in the past years before that, almost all remaining users appear to have used mISDN instead. Birger Harzenetter noted that he is still using i4l/hisax to take advantage of the 'divert' driver for call diversion, but otherwise uses mISDN on the same hardware. This is a rare edge case as far as I can tell, but we are still breaking an actively used work flow (see https://xkcd.com/1172/). We debated moving i4l/hisax to staging as an intermediate step, but as he is not likely to change the setup, and that would just delay breaking this use case. The alternatives here are to stay on stable kernels < 5.2, to create an external driver repository for isdn4linux, or to add divert functionality to mISDN. Cc: Birger Harzenetter <WIMPy@yeti.dk> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/isdn/hisax/hfc_usb.h')
-rw-r--r--drivers/isdn/hisax/hfc_usb.h208
1 files changed, 0 insertions, 208 deletions
diff --git a/drivers/isdn/hisax/hfc_usb.h b/drivers/isdn/hisax/hfc_usb.h
deleted file mode 100644
index 9a212330e8a8..000000000000
--- a/drivers/isdn/hisax/hfc_usb.h
+++ /dev/null
@@ -1,208 +0,0 @@
-/* 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__