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net: wan: remove support for COSA and SRP synchronous serial boards
Looks like all the changes to this driver had been automated churn since git era begun. The driver is using virt_to_bus() so it should be updated to a proper DMA API or removed. Given the latest "news" entry on the website is from 1999 I'm opting for the latter. I'm marking the allocated char device major number as [REMOVED], I reckon we can't reuse it in case some SW out there assumes its COSA? Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jakub Kicinski
David S. Miller
parent
052e1f01bf
commit
89fbca3307
@ -1933,7 +1933,7 @@
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...
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255= /dev/umem/d15p15 15th partition of 16th board.
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117 char COSA/SRP synchronous serial card
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117 char [REMOVED] COSA/SRP synchronous serial card
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0 = /dev/cosa0c0 1st board, 1st channel
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1 = /dev/cosa0c1 1st board, 2nd channel
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...
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@ -5047,12 +5047,6 @@ S: Maintained
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F: Documentation/hwmon/corsair-psu.rst
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F: drivers/hwmon/corsair-psu.c
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COSA/SRP SYNC SERIAL DRIVER
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M: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
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S: Maintained
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W: http://www.fi.muni.cz/~kas/cosa/
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F: drivers/net/wan/cosa*
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COUNTER SUBSYSTEM
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M: William Breathitt Gray <vilhelm.gray@gmail.com>
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L: linux-iio@vger.kernel.org
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@ -35,28 +35,6 @@ config HOSTESS_SV11
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The driver will be compiled as a module: the
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module will be called hostess_sv11.
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# The COSA/SRP driver has not been tested as non-modular yet.
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config COSA
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tristate "COSA/SRP sync serial boards support"
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depends on ISA && m && ISA_DMA_API && HDLC && VIRT_TO_BUS
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help
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Driver for COSA and SRP synchronous serial boards.
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These boards allow to connect synchronous serial devices (for example
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base-band modems, or any other device with the X.21, V.24, V.35 or
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V.36 interface) to your Linux box. The cards can work as the
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character device, synchronous PPP network device, or the Cisco HDLC
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network device.
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You will need user-space utilities COSA or SRP boards for downloading
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the firmware to the cards and to set them up. Look at the
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<http://www.fi.muni.cz/~kas/cosa/> for more information. You can also
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read the comment at the top of the <file:drivers/net/wan/cosa.c> for
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details about the cards and the driver itself.
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The driver will be compiled as a module: the
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module will be called cosa.
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# There is no way to detect a Sealevel board. Force it modular
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config SEALEVEL_4021
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tristate "Sealevel Systems 4021 support"
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@ -16,7 +16,6 @@ obj-$(CONFIG_HDLC_X25) += hdlc_x25.o
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obj-$(CONFIG_HOSTESS_SV11) += z85230.o hostess_sv11.o
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obj-$(CONFIG_SEALEVEL_4021) += z85230.o sealevel.o
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obj-$(CONFIG_COSA) += cosa.o
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obj-$(CONFIG_FARSYNC) += farsync.o
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obj-$(CONFIG_LAPBETHER) += lapbether.o
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File diff suppressed because it is too large
Load Diff
@ -1,104 +0,0 @@
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* $Id: cosa.h,v 1.6 1999/01/06 14:02:44 kas Exp $ */
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/*
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* Copyright (C) 1995-1997 Jan "Yenya" Kasprzak <kas@fi.muni.cz>
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*/
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#ifndef COSA_H__
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#define COSA_H__
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#include <linux/ioctl.h>
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#ifdef __KERNEL__
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/* status register - output bits */
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#define SR_RX_DMA_ENA 0x04 /* receiver DMA enable bit */
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#define SR_TX_DMA_ENA 0x08 /* transmitter DMA enable bit */
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#define SR_RST 0x10 /* SRP reset */
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#define SR_USR_INT_ENA 0x20 /* user interrupt enable bit */
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#define SR_TX_INT_ENA 0x40 /* transmitter interrupt enable bit */
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#define SR_RX_INT_ENA 0x80 /* receiver interrupt enable bit */
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/* status register - input bits */
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#define SR_USR_RQ 0x20 /* user interrupt request pending */
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#define SR_TX_RDY 0x40 /* transmitter empty (ready) */
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#define SR_RX_RDY 0x80 /* receiver data ready */
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#define SR_UP_REQUEST 0x02 /* request from SRP to transfer data
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up to PC */
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#define SR_DOWN_REQUEST 0x01 /* SRP is able to transfer data down
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from PC to SRP */
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#define SR_END_OF_TRANSFER 0x03 /* SRP signalize end of
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transfer (up or down) */
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#define SR_CMD_FROM_SRP_MASK 0x03 /* mask to get SRP command */
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/* bits in driver status byte definitions : */
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#define SR_RDY_RCV 0x01 /* ready to receive packet */
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#define SR_RDY_SND 0x02 /* ready to send packet */
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#define SR_CMD_PND 0x04 /* command pending */ /* not currently used */
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/* ???? */
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#define SR_PKT_UP 0x01 /* transfer of packet up in progress */
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#define SR_PKT_DOWN 0x02 /* transfer of packet down in progress */
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#endif /* __KERNEL__ */
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#define SR_LOAD_ADDR 0x4400 /* SRP microcode load address */
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#define SR_START_ADDR 0x4400 /* SRP microcode start address */
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#define COSA_LOAD_ADDR 0x400 /* SRP microcode load address */
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#define COSA_MAX_FIRMWARE_SIZE 0x10000
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/* ioctls */
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struct cosa_download {
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int addr, len;
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char __user *code;
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};
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/* Reset the device */
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#define COSAIORSET _IO('C',0xf0)
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/* Start microcode at given address */
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#define COSAIOSTRT _IOW('C',0xf1, int)
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/* Read the block from the device memory */
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#define COSAIORMEM _IOWR('C',0xf2, struct cosa_download *)
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/* actually the struct cosa_download itself; this is to keep
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* the ioctl number same as in 2.4 in order to keep the user-space
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* utils compatible. */
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/* Write the block to the device memory (i.e. download the microcode) */
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#define COSAIODOWNLD _IOW('C',0xf2, struct cosa_download *)
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/* actually the struct cosa_download itself; this is to keep
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* the ioctl number same as in 2.4 in order to keep the user-space
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* utils compatible. */
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/* Read the device type (one of "srp", "cosa", and "cosa8" for now) */
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#define COSAIORTYPE _IOR('C',0xf3, char *)
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/* Read the device identification string */
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#define COSAIORIDSTR _IOR('C',0xf4, char *)
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/* Maximum length of the identification string. */
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#define COSA_MAX_ID_STRING 128
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/* Increment/decrement the module usage count :-) */
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/* #define COSAIOMINC _IO('C',0xf5) */
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/* #define COSAIOMDEC _IO('C',0xf6) */
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/* Get the total number of cards installed */
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#define COSAIONRCARDS _IO('C',0xf7)
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/* Get the number of channels on this card */
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#define COSAIONRCHANS _IO('C',0xf8)
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/* Set the driver for the bus-master operations */
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#define COSAIOBMSET _IOW('C', 0xf9, unsigned short)
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#define COSA_BM_OFF 0 /* Bus-mastering off - use ISA DMA (default) */
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#define COSA_BM_ON 1 /* Bus-mastering on - faster but untested */
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/* Gets the busmaster status */
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#define COSAIOBMGET _IO('C', 0xfa)
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#endif /* !COSA_H__ */
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