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Diffstat (limited to 'drivers/ieee1394/cmp.c')
-rw-r--r--drivers/ieee1394/cmp.c311
1 files changed, 0 insertions, 311 deletions
diff --git a/drivers/ieee1394/cmp.c b/drivers/ieee1394/cmp.c
deleted file mode 100644
index 69aed26e83a..00000000000
--- a/drivers/ieee1394/cmp.c
+++ /dev/null
@@ -1,311 +0,0 @@
-/* -*- c-basic-offset: 8 -*-
- *
- * cmp.c - Connection Management Procedures
- * Copyright (C) 2001 Kristian Høgsberg
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-/* TODO
- * ----
- *
- * - Implement IEC61883-1 output plugs and connection management.
- * This should probably be part of the general subsystem, as it could
- * be shared with dv1394.
- *
- * - Add IEC61883 unit directory when loading this module. This
- * requires a run-time changeable config rom.
- */
-
-#include <linux/module.h>
-#include <linux/list.h>
-#include <linux/sched.h>
-#include <linux/types.h>
-#include <linux/wait.h>
-#include <linux/interrupt.h>
-
-#include "hosts.h"
-#include "highlevel.h"
-#include "ieee1394.h"
-#include "ieee1394_core.h"
-#include "cmp.h"
-
-struct plug {
- union {
- struct cmp_pcr pcr;
- quadlet_t quadlet;
- } u;
- void (*update)(struct cmp_pcr *plug, void *data);
- void *data;
-};
-
-struct cmp_host {
- struct hpsb_host *host;
-
- union {
- struct cmp_mpr ompr;
- quadlet_t ompr_quadlet;
- } u;
- struct plug opcr[2];
-
- union {
- struct cmp_mpr impr;
- quadlet_t impr_quadlet;
- } v;
- struct plug ipcr[2];
-};
-
-enum {
- CMP_P2P_CONNECTION,
- CMP_BC_CONNECTION
-};
-
-#define CSR_PCR_MAP 0x900
-#define CSR_PCR_MAP_END 0x9fc
-
-static struct hpsb_highlevel cmp_highlevel;
-
-static void cmp_add_host(struct hpsb_host *host);
-static void cmp_host_reset(struct hpsb_host *host);
-static int pcr_read(struct hpsb_host *host, int nodeid, quadlet_t *buf,
- u64 addr, size_t length, u16 flags);
-static int pcr_lock(struct hpsb_host *host, int nodeid, quadlet_t *store,
- u64 addr, quadlet_t data, quadlet_t arg, int extcode, u16 flags);
-
-static struct hpsb_highlevel cmp_highlevel = {
- .name = "cmp",
- .add_host = cmp_add_host,
- .host_reset = cmp_host_reset,
-};
-
-static struct hpsb_address_ops pcr_ops = {
- .read = pcr_read,
- .lock = pcr_lock,
-};
-
-
-struct cmp_pcr *
-cmp_register_opcr(struct hpsb_host *host, int opcr_number, int payload,
- void (*update)(struct cmp_pcr *pcr, void *data),
- void *data)
-{
- struct cmp_host *ch;
- struct plug *plug;
-
- ch = hpsb_get_hostinfo(&cmp_highlevel, host);
-
- if (opcr_number >= ch->u.ompr.nplugs ||
- ch->opcr[opcr_number].update != NULL)
- return NULL;
-
- plug = &ch->opcr[opcr_number];
- plug->u.pcr.online = 1;
- plug->u.pcr.bcast_count = 0;
- plug->u.pcr.p2p_count = 0;
- plug->u.pcr.overhead = 0;
- plug->u.pcr.payload = payload;
- plug->update = update;
- plug->data = data;
-
- return &plug->u.pcr;
-}
-
-void cmp_unregister_opcr(struct hpsb_host *host, struct cmp_pcr *opcr)
-{
- struct cmp_host *ch;
- struct plug *plug;
-
- ch = hpsb_get_hostinfo(&cmp_highlevel, host);
- plug = (struct plug *)opcr;
- if (plug - ch->opcr >= ch->u.ompr.nplugs) BUG();
-
- plug->u.pcr.online = 0;
- plug->update = NULL;
-}
-
-static void reset_plugs(struct cmp_host *ch)
-{
- int i;
-
- ch->u.ompr.non_persistent_ext = 0xff;
- for (i = 0; i < ch->u.ompr.nplugs; i++) {
- ch->opcr[i].u.pcr.bcast_count = 0;
- ch->opcr[i].u.pcr.p2p_count = 0;
- ch->opcr[i].u.pcr.overhead = 0;
- }
-}
-
-static void cmp_add_host(struct hpsb_host *host)
-{
- struct cmp_host *ch = hpsb_create_hostinfo(&cmp_highlevel, host, sizeof (*ch));
-
- if (ch == NULL) {
- HPSB_ERR("Failed to allocate cmp_host");
- return;
- }
-
- hpsb_register_addrspace(&cmp_highlevel, host, &pcr_ops,
- CSR_REGISTER_BASE + CSR_PCR_MAP,
- CSR_REGISTER_BASE + CSR_PCR_MAP_END);
-
- ch->host = host;
- ch->u.ompr.rate = IEEE1394_SPEED_100;
- ch->u.ompr.bcast_channel_base = 63;
- ch->u.ompr.nplugs = 2;
-
- reset_plugs(ch);
-}
-
-static void cmp_host_reset(struct hpsb_host *host)
-{
- struct cmp_host *ch;
-
- ch = hpsb_get_hostinfo(&cmp_highlevel, host);
- if (ch == NULL) {
- HPSB_ERR("cmp: Tried to reset unknown host");
- return;
- }
-
- reset_plugs(ch);
-}
-
-static int pcr_read(struct hpsb_host *host, int nodeid, quadlet_t *buf,
- u64 addr, size_t length, u16 flags)
-{
- int csraddr = addr - CSR_REGISTER_BASE;
- int plug;
- struct cmp_host *ch;
-
- if (length != 4)
- return RCODE_TYPE_ERROR;
-
- ch = hpsb_get_hostinfo(&cmp_highlevel, host);
- if (csraddr == 0x900) {
- *buf = cpu_to_be32(ch->u.ompr_quadlet);
- return RCODE_COMPLETE;
- }
- else if (csraddr < 0x904 + ch->u.ompr.nplugs * 4) {
- plug = (csraddr - 0x904) / 4;
- *buf = cpu_to_be32(ch->opcr[plug].u.quadlet);
- return RCODE_COMPLETE;
- }
- else if (csraddr < 0x980) {
- return RCODE_ADDRESS_ERROR;
- }
- else if (csraddr == 0x980) {
- *buf = cpu_to_be32(ch->v.impr_quadlet);
- return RCODE_COMPLETE;
- }
- else if (csraddr < 0x984 + ch->v.impr.nplugs * 4) {
- plug = (csraddr - 0x984) / 4;
- *buf = cpu_to_be32(ch->ipcr[plug].u.quadlet);
- return RCODE_COMPLETE;
- }
- else
- return RCODE_ADDRESS_ERROR;
-}
-
-static int pcr_lock(struct hpsb_host *host, int nodeid, quadlet_t *store,
- u64 addr, quadlet_t data, quadlet_t arg, int extcode, u16 flags)
-{
- int csraddr = addr - CSR_REGISTER_BASE;
- int plug;
- struct cmp_host *ch;
-
- ch = hpsb_get_hostinfo(&cmp_highlevel, host);
-
- if (extcode != EXTCODE_COMPARE_SWAP)
- return RCODE_TYPE_ERROR;
-
- if (csraddr == 0x900) {
- /* FIXME: Ignore writes to bits 30-31 and 0-7 */
- *store = cpu_to_be32(ch->u.ompr_quadlet);
- if (arg == cpu_to_be32(ch->u.ompr_quadlet))
- ch->u.ompr_quadlet = be32_to_cpu(data);
-
- return RCODE_COMPLETE;
- }
- if (csraddr < 0x904 + ch->u.ompr.nplugs * 4) {
- plug = (csraddr - 0x904) / 4;
- *store = cpu_to_be32(ch->opcr[plug].u.quadlet);
-
- if (arg == *store)
- ch->opcr[plug].u.quadlet = be32_to_cpu(data);
-
- if (be32_to_cpu(*store) != ch->opcr[plug].u.quadlet &&
- ch->opcr[plug].update != NULL)
- ch->opcr[plug].update(&ch->opcr[plug].u.pcr,
- ch->opcr[plug].data);
-
- return RCODE_COMPLETE;
- }
- else if (csraddr < 0x980) {
- return RCODE_ADDRESS_ERROR;
- }
- else if (csraddr == 0x980) {
- /* FIXME: Ignore writes to bits 24-31 and 0-7 */
- *store = cpu_to_be32(ch->u.ompr_quadlet);
- if (arg == cpu_to_be32(ch->u.ompr_quadlet))
- ch->u.ompr_quadlet = be32_to_cpu(data);
-
- return RCODE_COMPLETE;
- }
- else if (csraddr < 0x984 + ch->v.impr.nplugs * 4) {
- plug = (csraddr - 0x984) / 4;
- *store = cpu_to_be32(ch->ipcr[plug].u.quadlet);
-
- if (arg == *store)
- ch->ipcr[plug].u.quadlet = be32_to_cpu(data);
-
- if (be32_to_cpu(*store) != ch->ipcr[plug].u.quadlet &&
- ch->ipcr[plug].update != NULL)
- ch->ipcr[plug].update(&ch->ipcr[plug].u.pcr,
- ch->ipcr[plug].data);
-
- return RCODE_COMPLETE;
- }
- else
- return RCODE_ADDRESS_ERROR;
-}
-
-
-/* Module interface */
-
-MODULE_AUTHOR("Kristian Hogsberg <hogsberg@users.sf.net>");
-MODULE_DESCRIPTION("Connection Management Procedures (CMP)");
-MODULE_SUPPORTED_DEVICE("cmp");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(cmp_register_opcr);
-EXPORT_SYMBOL(cmp_unregister_opcr);
-
-static int __init cmp_init_module (void)
-{
- hpsb_register_highlevel (&cmp_highlevel);
-
- HPSB_INFO("Loaded CMP driver");
-
- return 0;
-}
-
-static void __exit cmp_exit_module (void)
-{
- hpsb_unregister_highlevel(&cmp_highlevel);
-
- HPSB_INFO("Unloaded CMP driver");
-}
-
-module_init(cmp_init_module);
-module_exit(cmp_exit_module);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 08:07:45 +0000