ieee1394: remove the old IEEE 1394 driver stack

The drivers
  - ohci1394 (controller driver)
  - ieee1394 (core)
  - dv1394, raw1394, video1394 (userspace ABI)
  - eth1394, sbp2 (protocol drivers)
are replaced by
  - firewire-ohci (controller driver)
  - firewire-core (core and userspace ABI)
  - firewire-net, firewire-sbp2 (protocol drivers)
which are more featureful, better performing, and more secure than the older
drivers; all with a smaller and more modern code base.

The driver firedtv in drivers/media/dvb/firewire/ contains backends to both
ieee1394 and firewire-core.  Its ieee1394 backend code can be removed in an
independent commit; firedtv as-is builds and works fine without ieee1394.

The driver pcilynx (an incomplete controller driver) is deleted without
replacement since PCILynx cards are extremely rare.  Owners of these cards
use them with the stand-alone bus sniffer driver nosy instead.

The drivers nosy and init_ohci1394_dma which do not interact with either of
the two IEEE 1394 stacks are not affected by the ieee1394 subsystem removal.

There are still some issues with the newer firewire subsystem compared to
the older one:
  - The rare and quirky controllers ALi M52xx, Apple UniNorth v1, NVIDIA
    NForce2 are even less well supported by firewire-ohci than by ohci1394.
    I am looking into the M52xx issue.
  - The experimental firewire-net is reportedly less stable than its
    experimental cousin eth1394.
  - Audio playback of a certain group of audio devices (ones based on DICE
    chipset with EAP; supported by prerelease FFADO code) does not work yet.
    This issue is still under investigation.
  - There were some ieee1394 based out-of-the-mainline drivers.  Of them,
    only lisight, an audio driver for iSight webcams, seems still useful.
    Work is underway to reimplement it on top of firewire-core.

All these remainig issues are minor; they should not stand in the way of
overall better user experience of IEEE 1394 on Linux, together with a
reduction in support efforts and maintenance burden.  The coexistence of two
IEEE 1394 kernel driver stacks in the mainline since 2.6.22 shall end now,
as announced earlier this year.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

1 files changed, 0 insertions, 191 deletions

diff --git a/drivers/ieee1394/raw1394.h b/drivers/ieee1394/raw1394.h
deleted file mode 100644
index 963ac20373d2..000000000000
--- a/drivers/ieee1394/raw1394.h
+++ /dev/null
@@ -1,191 +0,0 @@
-#ifndef IEEE1394_RAW1394_H
-#define IEEE1394_RAW1394_H
-
-/* header for the raw1394 API that is exported to user-space */
-
-#define RAW1394_KERNELAPI_VERSION 4
-
-/* state: opened */
-#define RAW1394_REQ_INITIALIZE    1
-
-/* state: initialized */
-#define RAW1394_REQ_LIST_CARDS    2
-#define RAW1394_REQ_SET_CARD      3
-
-/* state: connected */
-#define RAW1394_REQ_ASYNC_READ      100
-#define RAW1394_REQ_ASYNC_WRITE     101
-#define RAW1394_REQ_LOCK            102
-#define RAW1394_REQ_LOCK64          103
-#define RAW1394_REQ_ISO_SEND        104 /* removed ABI, now a no-op */
-#define RAW1394_REQ_ASYNC_SEND      105
-#define RAW1394_REQ_ASYNC_STREAM    106
-
-#define RAW1394_REQ_ISO_LISTEN      200 /* removed ABI, now a no-op */
-#define RAW1394_REQ_FCP_LISTEN      201
-#define RAW1394_REQ_RESET_BUS       202
-#define RAW1394_REQ_GET_ROM         203
-#define RAW1394_REQ_UPDATE_ROM      204
-#define RAW1394_REQ_ECHO            205
-#define RAW1394_REQ_MODIFY_ROM      206
-
-#define RAW1394_REQ_ARM_REGISTER    300
-#define RAW1394_REQ_ARM_UNREGISTER  301
-#define RAW1394_REQ_ARM_SET_BUF     302
-#define RAW1394_REQ_ARM_GET_BUF     303
-
-#define RAW1394_REQ_RESET_NOTIFY    400
-
-#define RAW1394_REQ_PHYPACKET       500
-
-/* kernel to user */
-#define RAW1394_REQ_BUS_RESET        10000
-#define RAW1394_REQ_ISO_RECEIVE      10001
-#define RAW1394_REQ_FCP_REQUEST      10002
-#define RAW1394_REQ_ARM              10003
-#define RAW1394_REQ_RAWISO_ACTIVITY  10004
-
-/* error codes */
-#define RAW1394_ERROR_NONE        0
-#define RAW1394_ERROR_COMPAT      (-1001)
-#define RAW1394_ERROR_STATE_ORDER (-1002)
-#define RAW1394_ERROR_GENERATION  (-1003)
-#define RAW1394_ERROR_INVALID_ARG (-1004)
-#define RAW1394_ERROR_MEMFAULT    (-1005)
-#define RAW1394_ERROR_ALREADY     (-1006)
-
-#define RAW1394_ERROR_EXCESSIVE   (-1020)
-#define RAW1394_ERROR_UNTIDY_LEN  (-1021)
-
-#define RAW1394_ERROR_SEND_ERROR  (-1100)
-#define RAW1394_ERROR_ABORTED     (-1101)
-#define RAW1394_ERROR_TIMEOUT     (-1102)
-
-/* arm_codes */
-#define ARM_READ   1
-#define ARM_WRITE  2
-#define ARM_LOCK   4
-
-#define RAW1394_LONG_RESET  0
-#define RAW1394_SHORT_RESET 1
-
-/* busresetnotify ... */
-#define RAW1394_NOTIFY_OFF 0
-#define RAW1394_NOTIFY_ON  1
-
-#include <asm/types.h>
-
-struct raw1394_request {
-        __u32 type;
-        __s32 error;
-        __u32 misc;
-
-        __u32 generation;
-        __u32 length;
-
-        __u64 address;
-
-        __u64 tag;
-
-        __u64 sendb;
-        __u64 recvb;
-};
-
-struct raw1394_khost_list {
-        __u32 nodes;
-        __u8 name[32];
-};
-
-typedef struct arm_request {
-        __u16           destination_nodeid;
-        __u16           source_nodeid;
-        __u64           destination_offset;
-        __u8            tlabel;
-        __u8            tcode;
-        __u8            extended_transaction_code;
-        __u32           generation;
-        __u16           buffer_length;
-        __u8            __user *buffer;
-} *arm_request_t;
-
-typedef struct arm_response {
-        __s32           response_code;
-        __u16           buffer_length;
-        __u8            __user *buffer;
-} *arm_response_t;
-
-typedef struct arm_request_response {
-        struct arm_request  __user *request;
-        struct arm_response __user *response;
-} *arm_request_response_t;
-
-/* rawiso API */
-#include "ieee1394-ioctl.h"
-
-/* per-packet metadata embedded in the ringbuffer */
-/* must be identical to hpsb_iso_packet_info in iso.h! */
-struct raw1394_iso_packet_info {
-        __u32 offset;
-        __u16 len;
-        __u16 cycle;   /* recv only */
-        __u8  channel; /* recv only */
-        __u8  tag;
-        __u8  sy;
-};
-
-/* argument for RAW1394_ISO_RECV/XMIT_PACKETS ioctls */
-struct raw1394_iso_packets {
-        __u32 n_packets;
-        struct raw1394_iso_packet_info __user *infos;
-};
-
-struct raw1394_iso_config {
-        /* size of packet data buffer, in bytes (will be rounded up to PAGE_SIZE) */
-        __u32 data_buf_size;
-
-        /* # of packets to buffer */
-        __u32 buf_packets;
-
-        /* iso channel (set to -1 for multi-channel recv) */
-        __s32 channel;
-
-        /* xmit only - iso transmission speed */
-        __u8 speed;
-
-        /* The mode of the dma when receiving iso data. Must be supported by chip */
-        __u8 dma_mode;
-
-        /* max. latency of buffer, in packets (-1 if you don't care) */
-        __s32 irq_interval;
-};
-
-/* argument to RAW1394_ISO_XMIT/RECV_INIT and RAW1394_ISO_GET_STATUS */
-struct raw1394_iso_status {
-        /* current settings */
-        struct raw1394_iso_config config;
-
-        /* number of packets waiting to be filled with data (ISO transmission)
-           or containing data received (ISO reception) */
-        __u32 n_packets;
-
-        /* approximate number of packets dropped due to overflow or
-           underflow of the packet buffer (a value of zero guarantees
-           that no packets have been dropped) */
-        __u32 overflows;
-
-        /* cycle number at which next packet will be transmitted;
-           -1 if not known */
-        __s16 xmit_cycle;
-};
-
-/* argument to RAW1394_IOC_GET_CYCLE_TIMER ioctl */
-struct raw1394_cycle_timer {
-        /* contents of Isochronous Cycle Timer register,
-           as in OHCI 1.1 clause 5.13 (also with non-OHCI hosts) */
-        __u32 cycle_timer;
-
-        /* local time in microseconds since Epoch,
-           simultaneously read with cycle timer */
-        __u64 local_time;
-};
-#endif /* IEEE1394_RAW1394_H */