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, 99 deletions

diff --git a/drivers/ieee1394/csr.h b/drivers/ieee1394/csr.h
deleted file mode 100644
index 90fb3f2192c3..000000000000
--- a/drivers/ieee1394/csr.h
+++ /dev/null
@@ -1,99 +0,0 @@
-#ifndef _IEEE1394_CSR_H
-#define _IEEE1394_CSR_H
-
-#include <linux/spinlock_types.h>
-
-#include "csr1212.h"
-#include "ieee1394_types.h"
-
-#define CSR_REGISTER_BASE               0xfffff0000000ULL
-
-/* register offsets relative to CSR_REGISTER_BASE */
-#define CSR_STATE_CLEAR                 0x0
-#define CSR_STATE_SET                   0x4
-#define CSR_NODE_IDS                    0x8
-#define CSR_RESET_START                 0xc
-#define CSR_SPLIT_TIMEOUT_HI            0x18
-#define CSR_SPLIT_TIMEOUT_LO            0x1c
-#define CSR_CYCLE_TIME                  0x200
-#define CSR_BUS_TIME                    0x204
-#define CSR_BUSY_TIMEOUT                0x210
-#define CSR_BUS_MANAGER_ID              0x21c
-#define CSR_BANDWIDTH_AVAILABLE         0x220
-#define CSR_CHANNELS_AVAILABLE          0x224
-#define CSR_CHANNELS_AVAILABLE_HI       0x224
-#define CSR_CHANNELS_AVAILABLE_LO       0x228
-#define CSR_BROADCAST_CHANNEL           0x234
-#define CSR_CONFIG_ROM                  0x400
-#define CSR_CONFIG_ROM_END              0x800
-#define CSR_FCP_COMMAND                 0xB00
-#define CSR_FCP_RESPONSE                0xD00
-#define CSR_FCP_END                     0xF00
-#define CSR_TOPOLOGY_MAP                0x1000
-#define CSR_TOPOLOGY_MAP_END            0x1400
-#define CSR_SPEED_MAP                   0x2000
-#define CSR_SPEED_MAP_END               0x3000
-
-/* IEEE 1394 bus specific Configuration ROM Key IDs */
-#define IEEE1394_KV_ID_POWER_REQUIREMENTS (0x30)
-
-/* IEEE 1394 Bus Information Block specifics */
-#define CSR_BUS_INFO_SIZE (5 * sizeof(quadlet_t))
-
-#define CSR_IRMC_SHIFT                  31
-#define CSR_CMC_SHIFT                   30
-#define CSR_ISC_SHIFT                   29
-#define CSR_BMC_SHIFT                   28
-#define CSR_PMC_SHIFT                   27
-#define CSR_CYC_CLK_ACC_SHIFT           16
-#define CSR_MAX_REC_SHIFT               12
-#define CSR_MAX_ROM_SHIFT               8
-#define CSR_GENERATION_SHIFT            4
-
-static inline void csr_set_bus_info_generation(struct csr1212_csr *csr, u8 gen)
-{
-        csr->bus_info_data[2] &= ~cpu_to_be32(0xf << CSR_GENERATION_SHIFT);
-        csr->bus_info_data[2] |= cpu_to_be32((u32)gen << CSR_GENERATION_SHIFT);
-}
-
-struct csr_control {
-        spinlock_t lock;
-
-        quadlet_t state;
-        quadlet_t node_ids;
-        quadlet_t split_timeout_hi, split_timeout_lo;
-        unsigned long expire;   /* Calculated from split_timeout */
-        quadlet_t cycle_time;
-        quadlet_t bus_time;
-        quadlet_t bus_manager_id;
-        quadlet_t bandwidth_available;
-        quadlet_t channels_available_hi, channels_available_lo;
-        quadlet_t broadcast_channel;
-
-        /* Bus Info */
-        quadlet_t guid_hi, guid_lo;
-        u8 cyc_clk_acc;
-        u8 max_rec;
-        u8 max_rom;
-        u8 generation;  /* Only use values between 0x2 and 0xf */
-        u8 lnk_spd;
-
-        unsigned long gen_timestamp[16];
-
-        struct csr1212_csr *rom;
-
-        quadlet_t topology_map[256];
-        quadlet_t speed_map[1024];
-};
-
-extern struct csr1212_bus_ops csr_bus_ops;
-
-int init_csr(void);
-void cleanup_csr(void);
-
-/* hpsb_update_config_rom() is deprecated */
-struct hpsb_host;
-int hpsb_update_config_rom(struct hpsb_host *host, const quadlet_t *new_rom,
-                           size_t size, unsigned char rom_version);
-
-#endif /* _IEEE1394_CSR_H */