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Commit e26768dc authored by Linus Torvalds's avatar Linus Torvalds
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Merge ieee1394 update

parents 245d1d15 6f6a50c8
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Showing with 8511 additions and 1473 deletions
drivers/ieee1394/Kconfig
View file @ e26768dc
......@@ -5,7 +5,7 @@ menu "IEEE 1394 (FireWire) support (EXPERIMENTAL)"
config IEEE1394
tristate "IEEE 1394 (FireWire) support (EXPERIMENTAL)"
---help---
help
IEEE 1394 describes a high performance serial bus, which is also
known as FireWire(tm) or i.Link(tm) and is used for connecting all
sorts of devices (most notably digital video cameras) to your
......@@ -20,6 +20,36 @@ config IEEE1394
say M here and read <file:Documentation/modules.txt>. The module
will be called ieee1394.o.
comment "Subsystem Options"
depends on IEEE1394
config IEEE1394_VERBOSEDEBUG
bool "Excessive debugging output"
depends on IEEE1394
help
If you say Y here, you will get very verbose debugging logs from
the subsystem which includes a dump of the header of every sent
and received packet. This can amount to a high amount of data
collected in a very short time which is usually also saved to
disk by the system logging daemons.
Say Y if you really want or need the debugging output, everyone
else says N.
config IEEE1394_OUI_DB
bool "OUI Database built-in"
depends on IEEE1394
help
If you say Y here, then an OUI list (vendor unique ID's) will be
compiled into the ieee1394 module. This doesn't really do much
accept being able to display the vendor of a hardware node. The
downside is that it adds about 300k to the size of the module,
or kernel (depending on whether you compile ieee1394 as a
module, or static in the kernel).
This option is not needed for userspace programs like gscanbus
to show this information.
comment "Device Drivers"
depends on IEEE1394
......@@ -47,7 +77,7 @@ config IEEE1394_PCILYNX
config IEEE1394_OHCI1394
tristate "OHCI-1394 support"
depends on IEEE1394
---help---
help
Enable this driver if you have an IEEE 1394 controller based on the
OHCI-1394 specification. The current driver is only tested with OHCI
chipsets made by Texas Instruments and NEC. Most third-party vendors
......@@ -64,7 +94,7 @@ comment "Protocol Drivers"
config IEEE1394_VIDEO1394
tristate "OHCI-1394 Video support"
depends on IEEE1394_OHCI1394
depends on IEEE1394 && IEEE1394_OHCI1394
help
This option enables video device usage for OHCI-1394 cards. Enable
this option only if you have an IEEE 1394 video device connected to
......@@ -72,14 +102,14 @@ config IEEE1394_VIDEO1394
config IEEE1394_SBP2
tristate "SBP-2 support (Harddisks etc.)"
depends on SCSI && IEEE1394
depends on IEEE1394 && SCSI
help
This option enables you to use SBP-2 devices connected to your IEEE
1394 bus. SBP-2 devices include harddrives and DVD devices.
config IEEE1394_SBP2_PHYS_DMA
bool "Enable Phys DMA support for SBP2 (Debug)"
depends on IEEE1394_SBP2
depends on IEEE1394 && IEEE1394_SBP2
config IEEE1394_ETH1394
tristate "Ethernet over 1394"
......@@ -90,8 +120,8 @@ config IEEE1394_ETH1394
config IEEE1394_DV1394
tristate "OHCI-DV I/O support"
depends on IEEE1394_OHCI1394
---help---
depends on IEEE1394 && IEEE1394_OHCI1394
help
This driver allows you to transmit and receive DV (digital video)
streams on an OHCI-1394 card using a simple frame-oriented
interface.
......@@ -131,8 +161,8 @@ config IEEE1394_CMP
config IEEE1394_AMDTP
tristate "IEC61883-6 (Audio transmission) support"
depends on IEEE1394_OHCI1394 && IEEE1394_CMP
---help---
depends on IEEE1394 && IEEE1394_OHCI1394 && IEEE1394_CMP
help
This option enables the Audio & Music Data Transmission Protocol
(IEC61883-6) driver, which implements audio transmission over
IEEE1394.
......@@ -144,18 +174,4 @@ config IEEE1394_AMDTP
say M here and read <file:Documentation/modules.txt>. The module
will be called amdtp.o.
config IEEE1394_VERBOSEDEBUG
bool "Excessive debugging output"
depends on IEEE1394
help
If you say Y here, you will get very verbose debugging logs from the
subsystem which includes a dump of the header of every sent and
received packet. This can amount to a high amount of data collected
in a very short time which is usually also saved to disk by the
system logging daemons.
Say Y if you really want or need the debugging output, everyone else
says N.
endmenu
drivers/ieee1394/Makefile
View file @ e26768dc
......@@ -5,7 +5,7 @@
export-objs := ieee1394_core.o ohci1394.o cmp.o
ieee1394-objs := ieee1394_core.o ieee1394_transactions.o hosts.o \
highlevel.o csr.o nodemgr.o
highlevel.o csr.o nodemgr.o oui.o dma.o iso.o
obj-$(CONFIG_IEEE1394) += ieee1394.o
obj-$(CONFIG_IEEE1394_PCILYNX) += pcilynx.o
......@@ -17,3 +17,14 @@ obj-$(CONFIG_IEEE1394_DV1394) += dv1394.o
obj-$(CONFIG_IEEE1394_ETH1394) += eth1394.o
obj-$(CONFIG_IEEE1394_AMDTP) += amdtp.o
obj-$(CONFIG_IEEE1394_CMP) += cmp.o
clean-files := oui.c
ifeq ($(obj),)
obj = .
endif
$(obj)/oui.o: $(obj)/oui.c
$(obj)/oui.c: $(obj)/oui.db $(obj)/oui2c.sh
$(CONFIG_SHELL) $(obj)/oui2c.sh < $(obj)/oui.db > $(obj)/oui.c
drivers/ieee1394/amdtp.c
View file @ e26768dc
......@@ -688,7 +688,7 @@ static u32 get_header_bits(struct stream *s, int sub_frame, u32 sample)
return get_iec958_header_bits(s, sub_frame, sample);
case AMDTP_FORMAT_RAW:
return 0x40000000;
return 0x40;
default:
return 0;
......@@ -833,8 +833,9 @@ static int stream_alloc_packet_lists(struct stream *s)
max_nevents = fraction_ceil(&s->samples_per_cycle);
max_packet_size = max_nevents * s->dimension * 4 + 8;
s->packet_pool = pci_pool_create("packet pool", s->host->ohci->dev,
max_packet_size, 0, 0);
s->packet_pool = hpsb_pci_pool_create("packet pool", s->host->ohci->dev,
max_packet_size, 0, 0 ,SLAB_KERNEL);
if (s->packet_pool == NULL)
return -1;
......@@ -1018,9 +1019,10 @@ struct stream *stream_alloc(struct amdtp_host *host)
return NULL;
}
s->descriptor_pool = pci_pool_create("descriptor pool", host->ohci->dev,
s->descriptor_pool = hpsb_pci_pool_create("descriptor pool", host->ohci->dev,
sizeof(struct descriptor_block),
16, 0);
16, 0 ,SLAB_KERNEL);
if (s->descriptor_pool == NULL) {
kfree(s->input);
kfree(s);
......@@ -1107,7 +1109,7 @@ static ssize_t amdtp_write(struct file *file, const char *buffer, size_t count,
*/
for (i = 0; i < count; i += length) {
p = buffer_put_bytes(s->input, count, &length);
p = buffer_put_bytes(s->input, count - i, &length);
copy_from_user(p, buffer + i, length);
if (s->input->length < s->input->size)
continue;
......@@ -1210,7 +1212,7 @@ static void amdtp_add_host(struct hpsb_host *host)
if (strcmp(host->driver->name, OHCI1394_DRIVER_NAME) != 0)
return;
ah = kmalloc(sizeof *ah, SLAB_KERNEL);
ah = kmalloc(sizeof *ah, in_interrupt() ? SLAB_ATOMIC : SLAB_KERNEL);
ah->host = host;
ah->ohci = host->hostdata;
INIT_LIST_HEAD(&ah->stream_list);
......
drivers/ieee1394/cmp.c
View file @ e26768dc
......@@ -34,6 +34,7 @@
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/wait.h>
#include <linux/interrupt.h>
#include "hosts.h"
#include "highlevel.h"
......@@ -158,7 +159,7 @@ static void cmp_add_host(struct hpsb_host *host)
{
struct cmp_host *ch;
ch = kmalloc(sizeof *ch, SLAB_KERNEL);
ch = kmalloc(sizeof *ch, in_interrupt() ? SLAB_ATOMIC : SLAB_KERNEL);
if (ch == NULL) {
HPSB_ERR("Failed to allocate cmp_host");
return;
......
drivers/ieee1394/csr.c
View file @ e26768dc
......@@ -28,7 +28,7 @@
/* Module Parameters */
/* this module parameter can be used to disable mapping of the FCP registers */
MODULE_PARM(fcp,"i");
MODULE_PARM_DESC(fcp, "FCP-registers");
MODULE_PARM_DESC(fcp, "Map FCP registers (default = 1, disable = 0).");
static int fcp = 1;
static u16 csr_crc16(unsigned *data, int length)
......@@ -54,8 +54,15 @@ static void host_reset(struct hpsb_host *host)
host->csr.bus_manager_id = 0x3f;
host->csr.bandwidth_available = 4915;
host->csr.channels_available_hi = ~0;
host->csr.channels_available_hi = 0xfffffffe; /* pre-alloc ch 31 per 1394a-2000 */
host->csr.channels_available_lo = ~0;
host->csr.broadcast_channel = 0x80000000 | 31;
if (host->is_irm) {
if (host->driver->hw_csr_reg) {
host->driver->hw_csr_reg(host, 2, 0xfffffffe, ~0);
}
}
host->csr.node_ids = host->node_id << 16;
......@@ -95,8 +102,15 @@ static void add_host(struct hpsb_host *host)
host->csr.bus_time = 0;
host->csr.bus_manager_id = 0x3f;
host->csr.bandwidth_available = 4915;
host->csr.channels_available_hi = ~0;
host->csr.channels_available_hi = 0xfffffffe; /* pre-alloc ch 31 per 1394a-2000 */
host->csr.channels_available_lo = ~0;
host->csr.broadcast_channel = 0x80000000 | 31;
if (host->is_irm) {
if (host->driver->hw_csr_reg) {
host->driver->hw_csr_reg(host, 2, 0xfffffffe, ~0);
}
}
}
int hpsb_update_config_rom(struct hpsb_host *host, const quadlet_t *new_rom,
......@@ -268,6 +282,10 @@ static int read_regs(struct hpsb_host *host, int nodeid, quadlet_t *buf,
*(buf++) = cpu_to_be32(ret);
out;
case CSR_BROADCAST_CHANNEL:
*(buf++) = cpu_to_be32(host->csr.broadcast_channel);
out;
/* address gap to end - fall through to default */
default:
return RCODE_ADDRESS_ERROR;
......@@ -345,6 +363,12 @@ static int write_regs(struct hpsb_host *host, int nodeid, int destid,
/* these are not writable, only lockable */
return RCODE_TYPE_ERROR;
case CSR_BROADCAST_CHANNEL:
/* only the valid bit can be written */
host->csr.broadcast_channel = (host->csr.broadcast_channel & ~0x40000000)
| (be32_to_cpu(*data) & 0x40000000);
out;
/* address gap to end - fall through */
default:
return RCODE_ADDRESS_ERROR;
......@@ -373,6 +397,18 @@ static int lock_regs(struct hpsb_host *host, int nodeid, quadlet_t *store,
data = be32_to_cpu(data);
arg = be32_to_cpu(arg);
/* Is somebody releasing the broadcast_channel on us? */
if (csraddr == CSR_CHANNELS_AVAILABLE_HI && (data & 0x1)) {
/* Note: this is may not be the right way to handle
* the problem, so we should look into the proper way
* eventually. */
HPSB_WARN("Node [" NODE_BUS_FMT "] wants to release "
"broadcast channel 31. Ignoring.",
NODE_BUS_ARGS(nodeid));
data &= ~0x1; /* keep broadcast channel allocated */
}
if (host->driver->hw_csr_reg) {
quadlet_t old;
......@@ -389,23 +425,84 @@ static int lock_regs(struct hpsb_host *host, int nodeid, quadlet_t *store,
switch (csraddr) {
case CSR_BUS_MANAGER_ID:
regptr = &host->csr.bus_manager_id;
*store = cpu_to_be32(*regptr);
if (*regptr == arg)
*regptr = data;
break;
case CSR_BANDWIDTH_AVAILABLE:
{
quadlet_t bandwidth;
quadlet_t old;
quadlet_t new;
regptr = &host->csr.bandwidth_available;
old = *regptr;
/* bandwidth available algorithm adapted from IEEE 1394a-2000 spec */
if (arg > 0x1fff) {
*store = cpu_to_be32(old); /* change nothing */
break;
}
data &= 0x1fff;
if (arg >= data) {
/* allocate bandwidth */
bandwidth = arg - data;
if (old >= bandwidth) {
new = old - bandwidth;
*store = cpu_to_be32(arg);
*regptr = new;
} else {
*store = cpu_to_be32(old);
}
} else {
/* deallocate bandwidth */
bandwidth = data - arg;
if (old + bandwidth < 0x2000) {
new = old + bandwidth;
*store = cpu_to_be32(arg);
*regptr = new;
} else {
*store = cpu_to_be32(old);
}
}
break;
}
case CSR_CHANNELS_AVAILABLE_HI:
{
/* Lock algorithm for CHANNELS_AVAILABLE as recommended by 1394a-2000 */
quadlet_t affected_channels = arg ^ data;
regptr = &host->csr.channels_available_hi;
if ((arg & affected_channels) == (*regptr & affected_channels)) {
*regptr ^= affected_channels;
*store = cpu_to_be32(arg);
} else {
*store = cpu_to_be32(*regptr);
}
break;
}
case CSR_CHANNELS_AVAILABLE_LO:
{
/* Lock algorithm for CHANNELS_AVAILABLE as recommended by 1394a-2000 */
quadlet_t affected_channels = arg ^ data;
regptr = &host->csr.channels_available_lo;
if ((arg & affected_channels) == (*regptr & affected_channels)) {
*regptr ^= affected_channels;
*store = cpu_to_be32(arg);
} else {
*store = cpu_to_be32(*regptr);
}
break;
}
}
*store = cpu_to_be32(*regptr);
if (*regptr == arg) *regptr = data;
spin_unlock_irqrestore(&host->csr.lock, flags);
return RCODE_COMPLETE;
......@@ -420,10 +517,7 @@ static int lock_regs(struct hpsb_host *host, int nodeid, quadlet_t *store,
case CSR_SPLIT_TIMEOUT_LO:
case CSR_CYCLE_TIME:
case CSR_BUS_TIME:
case CSR_BUS_MANAGER_ID:
case CSR_BANDWIDTH_AVAILABLE:
case CSR_CHANNELS_AVAILABLE_HI:
case CSR_CHANNELS_AVAILABLE_LO:
case CSR_BROADCAST_CHANNEL:
return RCODE_TYPE_ERROR;
case CSR_BUSY_TIMEOUT:
......@@ -433,6 +527,97 @@ static int lock_regs(struct hpsb_host *host, int nodeid, quadlet_t *store,
}
}
static int lock64_regs(struct hpsb_host *host, int nodeid, octlet_t * store,
u64 addr, octlet_t data, octlet_t arg, int extcode, u16 fl)
{
int csraddr = addr - CSR_REGISTER_BASE;
unsigned long flags;
data = be64_to_cpu(data);
arg = be64_to_cpu(arg);
if (csraddr & 0x3)
return RCODE_TYPE_ERROR;
if (csraddr != CSR_CHANNELS_AVAILABLE
|| extcode != EXTCODE_COMPARE_SWAP)
goto unsupported_lock64req;
/* Is somebody releasing the broadcast_channel on us? */
if (csraddr == CSR_CHANNELS_AVAILABLE_HI && (data & 0x100000000ULL)) {
/* Note: this is may not be the right way to handle
* the problem, so we should look into the proper way
* eventually. */
HPSB_WARN("Node [" NODE_BUS_FMT "] wants to release "
"broadcast channel 31. Ignoring.",
NODE_BUS_ARGS(nodeid));
data &= ~0x100000000ULL; /* keep broadcast channel allocated */
}
if (host->driver->hw_csr_reg) {
quadlet_t data_hi, data_lo;
quadlet_t arg_hi, arg_lo;
quadlet_t old_hi, old_lo;
data_hi = data >> 32;
data_lo = data & 0xFFFFFFFF;
arg_hi = arg >> 32;
arg_lo = arg & 0xFFFFFFFF;
old_hi = host->driver->hw_csr_reg(host, (csraddr - CSR_BUS_MANAGER_ID) >> 2,
data_hi, arg_hi);
old_lo = host->driver->hw_csr_reg(host, ((csraddr + 4) - CSR_BUS_MANAGER_ID) >> 2,
data_lo, arg_lo);
*store = cpu_to_be64(((octlet_t)old_hi << 32) | old_lo);
} else {
octlet_t old;
octlet_t affected_channels = arg ^ data;
spin_lock_irqsave(&host->csr.lock, flags);
old = ((octlet_t)host->csr.channels_available_hi << 32) | host->csr.channels_available_lo;
if ((arg & affected_channels) == (old & affected_channels)) {
host->csr.channels_available_hi ^= (affected_channels >> 32);
host->csr.channels_available_lo ^= (affected_channels & 0xffffffff);
*store = cpu_to_be64(arg);
} else {
*store = cpu_to_be64(old);
}
spin_unlock_irqrestore(&host->csr.lock, flags);
}
/* Is somebody erroneously releasing the broadcast_channel on us? */
if (host->csr.channels_available_hi & 0x1)
host->csr.channels_available_hi &= ~0x1;
return RCODE_COMPLETE;
unsupported_lock64req:
switch (csraddr) {
case CSR_STATE_CLEAR:
case CSR_STATE_SET:
case CSR_RESET_START:
case CSR_NODE_IDS:
case CSR_SPLIT_TIMEOUT_HI:
case CSR_SPLIT_TIMEOUT_LO:
case CSR_CYCLE_TIME:
case CSR_BUS_TIME:
case CSR_BUS_MANAGER_ID:
case CSR_BROADCAST_CHANNEL:
case CSR_BUSY_TIMEOUT:
case CSR_BANDWIDTH_AVAILABLE:
return RCODE_TYPE_ERROR;
default:
return RCODE_ADDRESS_ERROR;
}
}
static int write_fcp(struct hpsb_host *host, int nodeid, int dest,
quadlet_t *data, u64 addr, unsigned int length, u16 flags)
{
......@@ -474,6 +659,7 @@ static struct hpsb_address_ops reg_ops = {
.read = read_regs,
.write = write_regs,
.lock = lock_regs,
.lock64 = lock64_regs,
};
static struct hpsb_highlevel *hl;
......
drivers/ieee1394/csr.h
View file @ e26768dc
......@@ -16,8 +16,10 @@
#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
......@@ -40,6 +42,7 @@ struct csr_control {
quadlet_t bus_manager_id;
quadlet_t bandwidth_available;
quadlet_t channels_available_hi, channels_available_lo;
quadlet_t broadcast_channel;
quadlet_t *rom;
size_t rom_size;
......
drivers/ieee1394/dma.c 0 → 100644
View file @ e26768dc
/*
* DMA region bookkeeping routines
*
* Copyright (C) 2002 Maas Digital LLC
*
* This code is licensed under the GPL. See the file COPYING in the root
* directory of the kernel sources for details.
*/
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include "dma.h"
/* dma_prog_region */
void dma_prog_region_init(struct dma_prog_region *prog)
{
prog->kvirt = NULL;
prog->dev = NULL;
prog->n_pages = 0;
prog->bus_addr = 0;
}
int dma_prog_region_alloc(struct dma_prog_region *prog, unsigned long n_bytes, struct pci_dev *dev)
{
/* round up to page size */
if(n_bytes % PAGE_SIZE)
n_bytes += PAGE_SIZE - (n_bytes & PAGE_SIZE);
prog->n_pages = n_bytes / PAGE_SIZE;
prog->kvirt = pci_alloc_consistent(dev, prog->n_pages * PAGE_SIZE, &prog->bus_addr);
if(!prog->kvirt) {
printk(KERN_ERR "dma_prog_region_alloc: pci_alloc_consistent() failed\n");
dma_prog_region_free(prog);
return -ENOMEM;
}
prog->dev = dev;
return 0;
}
void dma_prog_region_free(struct dma_prog_region *prog)
{
if(prog->kvirt) {
pci_free_consistent(prog->dev, prog->n_pages * PAGE_SIZE, prog->kvirt, prog->bus_addr);
}
prog->kvirt = NULL;
prog->dev = NULL;
prog->n_pages = 0;
prog->bus_addr = 0;
}
/* dma_region */
void dma_region_init(struct dma_region *dma)
{
dma->kvirt = NULL;
dma->dev = NULL;
dma->n_pages = 0;
dma->n_dma_pages = 0;
dma->sglist = NULL;
}
int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes, struct pci_dev *dev, int direction)
{
unsigned int i, n_pages;
/* round up to page size */
if(n_bytes % PAGE_SIZE)
n_bytes += PAGE_SIZE - (n_bytes & PAGE_SIZE);
n_pages = n_bytes / PAGE_SIZE;
dma->kvirt = vmalloc_32(n_pages * PAGE_SIZE);
if(!dma->kvirt) {
printk(KERN_ERR "dma_region_alloc: vmalloc_32() failed\n");
goto err;
}
dma->n_pages = n_pages;
/* Clear the ram out, no junk to the user */
memset(dma->kvirt, 0, n_pages * PAGE_SIZE);
/* allocate scatter/gather list */
dma->sglist = kmalloc(dma->n_pages * sizeof(struct scatterlist), GFP_KERNEL);
if(!dma->sglist) {
printk(KERN_ERR "dma_region_alloc: kmalloc(sglist) failed\n");
goto err;
}
/* just to be safe - this will become unnecessary once sglist->address goes away */
memset(dma->sglist, 0, dma->n_pages * sizeof(struct scatterlist));
/* fill scatter/gather list with pages */
for(i = 0; i < dma->n_pages; i++) {
unsigned long va = (unsigned long) dma->kvirt + i * PAGE_SIZE;
dma->sglist[i].page = vmalloc_to_page((void *)va);
dma->sglist[i].length = PAGE_SIZE;
}
/* map sglist to the IOMMU */
dma->n_dma_pages = pci_map_sg(dev, &dma->sglist[0], dma->n_pages, direction);
if(dma->n_dma_pages == 0) {
printk(KERN_ERR "dma_region_alloc: pci_map_sg() failed\n");
goto err;
}
dma->dev = dev;
dma->direction = direction;
return 0;
err:
dma_region_free(dma);
return -ENOMEM;
}
void dma_region_free(struct dma_region *dma)
{
if(dma->n_dma_pages) {
pci_unmap_sg(dma->dev, dma->sglist, dma->n_pages, dma->direction);
dma->n_dma_pages = 0;
dma->dev = NULL;
}
if(dma->sglist) {
kfree(dma->sglist);
dma->sglist = NULL;
}
if(dma->kvirt) {
vfree(dma->kvirt);
dma->kvirt = NULL;
dma->n_pages = 0;
}
}
/* find the scatterlist index and remaining offset corresponding to a
given offset from the beginning of the buffer */
static inline int dma_region_find(struct dma_region *dma, unsigned long offset, unsigned long *rem)
{
int i;
unsigned long off = offset;
for(i = 0; i < dma->n_dma_pages; i++) {
if(off < sg_dma_len(&dma->sglist[i])) {
*rem = off;
return i;
}
off -= sg_dma_len(&dma->sglist[i]);
}
panic("dma_region_find: offset %lu beyond end of DMA mapping\n", offset);
}
dma_addr_t dma_region_offset_to_bus(struct dma_region *dma, unsigned long offset)
{
unsigned long rem;
struct scatterlist *sg = &dma->sglist[dma_region_find(dma, offset, &rem)];
return sg_dma_address(sg) + rem;
}
void dma_region_sync(struct dma_region *dma, unsigned long offset, unsigned long len)
{
int first, last;
unsigned long rem;
if(!len)
len = 1;
first = dma_region_find(dma, offset, &rem);
last = dma_region_find(dma, offset + len - 1, &rem);
pci_dma_sync_sg(dma->dev, &dma->sglist[first], last - first + 1, dma->direction);
}
/* nopage() handler for mmap access */
static struct page*
dma_region_pagefault(struct vm_area_struct *area, unsigned long address, int write_access)
{
unsigned long offset;
unsigned long kernel_virt_addr;
struct page *ret = NOPAGE_SIGBUS;
struct dma_region *dma = (struct dma_region*) area->vm_private_data;
if(!dma->kvirt)
goto out;
if( (address < (unsigned long) area->vm_start) ||
(address > (unsigned long) area->vm_start + (PAGE_SIZE * dma->n_pages)) )
goto out;
offset = address - area->vm_start;
kernel_virt_addr = (unsigned long) dma->kvirt + offset;
ret = vmalloc_to_page((void*) kernel_virt_addr);
get_page(ret);
out:
return ret;
}
static struct vm_operations_struct dma_region_vm_ops = {
nopage: dma_region_pagefault,
};
int dma_region_mmap(struct dma_region *dma, struct file *file, struct vm_area_struct *vma)
{
unsigned long size;
if(!dma->kvirt)
return -EINVAL;
/* must be page-aligned */
if(vma->vm_pgoff != 0)
return -EINVAL;
/* check the length */
size = vma->vm_end - vma->vm_start;
if(size > (PAGE_SIZE * dma->n_pages))
return -EINVAL;
vma->vm_ops = &dma_region_vm_ops;
vma->vm_private_data = dma;
vma->vm_file = file;
vma->vm_flags |= VM_RESERVED;
return 0;
}
drivers/ieee1394/dma.h 0 → 100644
View file @ e26768dc
/*
* DMA region bookkeeping routines
*
* Copyright (C) 2002 Maas Digital LLC
*
* This code is licensed under the GPL. See the file COPYING in the root
* directory of the kernel sources for details.
*/
#ifndef IEEE1394_DMA_H
#define IEEE1394_DMA_H
#include <linux/pci.h>
#include <asm/scatterlist.h>
/* struct dma_prog_region
a small, physically-contiguous DMA buffer with random-access,
synchronous usage characteristics
*/
struct dma_prog_region {
unsigned char *kvirt; /* kernel virtual address */
struct pci_dev *dev; /* PCI device */
unsigned int n_pages; /* # of kernel pages */
dma_addr_t bus_addr; /* base bus address */
};
/* clear out all fields but do not allocate any memory */
void dma_prog_region_init(struct dma_prog_region *prog);
int dma_prog_region_alloc(struct dma_prog_region *prog, unsigned long n_bytes, struct pci_dev *dev);
void dma_prog_region_free(struct dma_prog_region *prog);
static inline dma_addr_t dma_prog_region_offset_to_bus(struct dma_prog_region *prog, unsigned long offset)
{
return prog->bus_addr + offset;
}
/* struct dma_region
a large, non-physically-contiguous DMA buffer with streaming,
asynchronous usage characteristics
*/
struct dma_region {
unsigned char *kvirt; /* kernel virtual address */
struct pci_dev *dev; /* PCI device */
unsigned int n_pages; /* # of kernel pages */
unsigned int n_dma_pages; /* # of IOMMU pages */
struct scatterlist *sglist; /* IOMMU mapping */
int direction; /* PCI_DMA_TODEVICE, etc */
};
/* clear out all fields but do not allocate anything */
void dma_region_init(struct dma_region *dma);
/* allocate the buffer and map it to the IOMMU */
int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes, struct pci_dev *dev, int direction);
/* unmap and free the buffer */
void dma_region_free(struct dma_region *dma);
/* sync the IO bus' view of the buffer with the CPU's view */
void dma_region_sync(struct dma_region *dma, unsigned long offset, unsigned long len);
/* map the buffer into a user space process */
int dma_region_mmap(struct dma_region *dma, struct file *file, struct vm_area_struct *vma);
/* macro to index into a DMA region (or dma_prog_region) */
#define dma_region_i(_dma, _type, _index) ( ((_type*) ((_dma)->kvirt)) + (_index) )
/* return the DMA bus address of the byte with the given offset
relative to the beginning of the dma_region */
dma_addr_t dma_region_offset_to_bus(struct dma_region *dma, unsigned long offset);
#endif /* IEEE1394_DMA_H */
drivers/ieee1394/dv1394-private.h
View file @ e26768dc
......@@ -28,8 +28,7 @@
#include "ieee1394.h"
#include "ohci1394.h"
#include <linux/pci.h>
#include <asm/scatterlist.h>
#include "dma.h"
/* data structures private to the dv1394 driver */
/* none of this is exposed to user-space */
......@@ -167,12 +166,14 @@ static inline void fill_input_more(struct input_more *im,
}
static inline void fill_input_last(struct input_last *il,
int want_interrupt,
unsigned int data_size,
unsigned long data_phys_addr)
{
u32 temp = 3 << 28; /* INPUT_LAST */
temp |= 8 << 24; /* s = 1, update xferStatus and resCount */
temp |= 3 << 20; /* enable interrupts */
if (want_interrupt)
temp |= 3 << 20; /* enable interrupts */
temp |= 0xC << 16; /* enable branch to address */
/* disable wait on sync field, not used in DV :-( */
temp |= data_size;
......@@ -301,8 +302,7 @@ struct frame {
unsigned long data;
/* Max # of packets per frame */
/* 320 is enough for NTSC, need to check what PAL is */
#define MAX_PACKETS 500
#define MAX_PACKETS 500
/* a PAGE_SIZE memory pool for allocating CIP headers
......@@ -383,35 +383,6 @@ static void frame_delete(struct frame *f);
/* reset f so that it can be used again */
static void frame_reset(struct frame *f);
/* structure for bookkeeping of a large non-physically-contiguous DMA buffer */
struct dma_region {
unsigned int n_pages;
unsigned int n_dma_pages;
struct scatterlist *sglist;
};
/* return the DMA bus address of the byte with the given offset
relative to the beginning of the dma_region */
static inline dma_addr_t dma_offset_to_bus(struct dma_region *dma, unsigned long offset)
{
int i;
struct scatterlist *sg;
for(i = 0, sg = &dma->sglist[0]; i < dma->n_dma_pages; i++, sg++) {
if(offset < sg_dma_len(sg)) {
return sg_dma_address(sg) + offset;
}
offset -= sg_dma_len(sg);
}
printk(KERN_ERR "dv1394: dma_offset_to_bus failed for offset %lu!\n", offset);
return 0;
}
/* struct video_card contains all data associated with one instance
of the dv1394 driver
*/
......@@ -508,9 +479,8 @@ struct video_card {
/* the large, non-contiguous (rvmalloc()) ringbuffer for DV
data, exposed to user-space via mmap() */
unsigned char *user_buf;
unsigned long user_buf_size;
struct dma_region user_dma;
unsigned long dv_buf_size;
struct dma_region dv_buf;
/* next byte in the ringbuffer that a write() call will fill */
size_t write_off;
......@@ -579,10 +549,8 @@ struct video_card {
/* physically contiguous packet ringbuffer for receive */
#define MAX_PACKET_BUFFER 30
struct packet *packet_buffer;
dma_addr_t packet_buffer_dma;
unsigned long packet_buffer_size;
struct dma_region packet_buf;
unsigned long packet_buf_size;
unsigned int current_packet;
int first_frame; /* received first start frame marker? */
......
drivers/ieee1394/dv1394.c
View file @ e26768dc
This diff is collapsed.
drivers/ieee1394/eth1394.c
View file @ e26768dc
......@@ -55,9 +55,9 @@
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/skbuff.h>
#include <linux/bitops.h>
#include <asm/delay.h>
#include <asm/semaphore.h>
#include <asm/bitops.h>
#include <net/arp.h>
#include "ieee1394_types.h"
......@@ -77,7 +77,7 @@
printk(KERN_ERR fmt, ## args)
static char version[] __devinitdata =
"$Rev: 601 $ Ben Collins <bcollins@debian.org>";
"$Rev: 641 $ Ben Collins <bcollins@debian.org>";
/* Our ieee1394 highlevel driver */
#define ETHER1394_DRIVER_NAME "ether1394"
......@@ -360,7 +360,7 @@ static void ether1394_add_host (struct hpsb_host *host)
priv->host = host;
hi = (struct host_info *)kmalloc (sizeof (struct host_info),
GFP_KERNEL);
in_interrupt() ? SLAB_ATOMIC : SLAB_KERNEL);
if (hi == NULL)
goto out;
......@@ -682,6 +682,8 @@ static int ether1394_tx (struct sk_buff *skb, struct net_device *dev)
ptask->skb = skb;
ptask->addr = addr;
ptask->dest_node = dest_node;
/* TODO: When 2.4 is out of the way, give each of our ethernet
* dev's a workqueue to handle these. */
HPSB_INIT_WORK(&ptask->tq, hpsb_write_sched, ptask);
hpsb_schedule_work(&ptask->tq);
......
drivers/ieee1394/highlevel.c
View file @ e26768dc
......@@ -28,7 +28,7 @@
LIST_HEAD(hl_drivers);
rwlock_t hl_drivers_lock = RW_LOCK_UNLOCKED;
static DECLARE_MUTEX(hl_drivers_lock);
LIST_HEAD(addr_space);
rwlock_t addr_space_lock = RW_LOCK_UNLOCKED;
......@@ -53,11 +53,11 @@ struct hpsb_highlevel *hpsb_register_highlevel(const char *name,
hl->name = name;
hl->op = ops;
write_lock_irq(&hl_drivers_lock);
down(&hl_drivers_lock);
list_add_tail(&hl->hl_list, &hl_drivers);
write_unlock_irq(&hl_drivers_lock);
up(&hl_drivers_lock);
hl_all_hosts(hl->op->add_host);
hl_all_hosts(hl->op->add_host);
return hl;
}
......@@ -82,9 +82,9 @@ void hpsb_unregister_highlevel(struct hpsb_highlevel *hl)
}
write_unlock_irq(&addr_space_lock);
write_lock_irq(&hl_drivers_lock);
down(&hl_drivers_lock);
list_del(&hl->hl_list);
write_unlock_irq(&hl_drivers_lock);
up(&hl_drivers_lock);
if (hl->op->remove_host)
hl_all_hosts(hl->op->remove_host);
......@@ -119,10 +119,8 @@ int hpsb_register_addrspace(struct hpsb_highlevel *hl,
write_lock_irq(&addr_space_lock);
entry = addr_space.next;
while (list_entry(entry, struct hpsb_address_serve, as_list)->end
<= start) {
if (list_entry(entry->next, struct hpsb_address_serve, as_list)
->start >= end) {
while (list_entry(entry, struct hpsb_address_serve, as_list)->end <= start) {
if (list_entry(entry->next, struct hpsb_address_serve, as_list)->start >= end) {
list_add(&as->as_list, entry);
list_add_tail(&as->addr_list, &hl->addr_list);
retval = 1;
......@@ -198,13 +196,13 @@ void highlevel_add_host(struct hpsb_host *host)
struct list_head *entry;
struct hpsb_highlevel *hl;
read_lock(&hl_drivers_lock);
down(&hl_drivers_lock);
list_for_each(entry, &hl_drivers) {
hl = list_entry(entry, struct hpsb_highlevel, hl_list);
hl->op->add_host(host);
}
read_unlock(&hl_drivers_lock);
up(&hl_drivers_lock);
}
void highlevel_remove_host(struct hpsb_host *host)
......@@ -212,14 +210,14 @@ void highlevel_remove_host(struct hpsb_host *host)
struct list_head *entry;
struct hpsb_highlevel *hl;
write_lock_irq(&hl_drivers_lock);
down(&hl_drivers_lock);
list_for_each(entry, &hl_drivers) {
hl = list_entry(entry, struct hpsb_highlevel, hl_list);
if (hl->op->remove_host)
hl->op->remove_host(host);
}
write_unlock_irq(&hl_drivers_lock);
up(&hl_drivers_lock);
}
void highlevel_host_reset(struct hpsb_host *host)
......@@ -227,14 +225,14 @@ void highlevel_host_reset(struct hpsb_host *host)
struct list_head *entry;
struct hpsb_highlevel *hl;
read_lock(&hl_drivers_lock);
down(&hl_drivers_lock);
list_for_each(entry, &hl_drivers) {
hl = list_entry(entry, struct hpsb_highlevel, hl_list);
if (hl->op->host_reset)
hl->op->host_reset(host);
}
read_unlock(&hl_drivers_lock);
up(&hl_drivers_lock);
}
void highlevel_iso_receive(struct hpsb_host *host, quadlet_t *data,
......@@ -244,7 +242,7 @@ void highlevel_iso_receive(struct hpsb_host *host, quadlet_t *data,
struct hpsb_highlevel *hl;
int channel = (data[0] >> 8) & 0x3f;
read_lock(&hl_drivers_lock);
down(&hl_drivers_lock);
entry = hl_drivers.next;
while (entry != &hl_drivers) {
......@@ -254,7 +252,7 @@ void highlevel_iso_receive(struct hpsb_host *host, quadlet_t *data,
}
entry = entry->next;
}
read_unlock(&hl_drivers_lock);
up(&hl_drivers_lock);
}
void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
......@@ -264,7 +262,7 @@ void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
struct hpsb_highlevel *hl;
int cts = data[0] >> 4;
read_lock(&hl_drivers_lock);
down(&hl_drivers_lock);
entry = hl_drivers.next;
while (entry != &hl_drivers) {
......@@ -275,7 +273,7 @@ void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
}
entry = entry->next;
}
read_unlock(&hl_drivers_lock);
up(&hl_drivers_lock);
}
int highlevel_read(struct hpsb_host *host, int nodeid, quadlet_t *buffer,
......
drivers/ieee1394/hosts.c
View file @ e26768dc
......@@ -121,6 +121,7 @@ void hpsb_unref_host(struct hpsb_host *host)
struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra)
{
struct hpsb_host *h;
int i;
h = kmalloc(sizeof(struct hpsb_host) + extra, SLAB_KERNEL);
if (!h) return NULL;
......@@ -133,8 +134,8 @@ struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra)
INIT_LIST_HEAD(&h->pending_packets);
spin_lock_init(&h->pending_pkt_lock);
sema_init(&h->tlabel_count, 64);
spin_lock_init(&h->tlabel_lock);
for (i = 0; i < ARRAY_SIZE(h->tpool); i++)
HPSB_TPOOL_INIT(&h->tpool[i]);
atomic_set(&h->generation, 0);
......
drivers/ieee1394/hosts.h
View file @ e26768dc
......@@ -18,6 +18,7 @@
#define CSR_CONFIG_ROM_SIZE 0x100
struct hpsb_packet;
struct hpsb_iso;
struct hpsb_host {
struct list_head host_list;
......@@ -32,13 +33,6 @@ struct hpsb_host {
spinlock_t pending_pkt_lock;
struct hpsb_queue_struct timeout_tq;
/* A bitmask where a set bit means that this tlabel is in use.
* FIXME - should be handled per node instead of per bus. */
u32 tlabel_pool[2];
struct semaphore tlabel_count;
spinlock_t tlabel_lock;
u32 tlabel_current;
unsigned char iso_listen_count[64];
int node_count; /* number of identified nodes on this bus */
......@@ -64,6 +58,9 @@ struct hpsb_host {
u8 *speed_map;
struct csr_control csr;
/* Per node tlabel pool allocation */
struct hpsb_tlabel_pool tpool[64];
struct hpsb_host_driver *driver;
struct pci_dev *pdev;
......@@ -108,6 +105,28 @@ enum devctl_cmd {
ISO_UNLISTEN_CHANNEL
};
enum isoctl_cmd {
/* rawiso API - see iso.h for the meanings of these commands
* INIT = allocate resources
* START = begin transmission/reception (arg: cycle to start on)
* STOP = halt transmission/reception
* QUEUE/RELEASE = produce/consume packets (arg: # of packets)
* SHUTDOWN = deallocate resources
*/
XMIT_INIT,
XMIT_START,
XMIT_STOP,
XMIT_QUEUE,
XMIT_SHUTDOWN,
RECV_INIT,
RECV_START,
RECV_STOP,
RECV_RELEASE,
RECV_SHUTDOWN,
};
enum reset_types {
/* 166 microsecond reset -- only type of reset available on
non-1394a capable IEEE 1394 controllers */
......@@ -115,7 +134,13 @@ enum reset_types {
/* Short (arbitrated) reset -- only available on 1394a capable
IEEE 1394 capable controllers */
SHORT_RESET
SHORT_RESET,
/* Variants, that set force_root before issueing the bus reset */
LONG_RESET_FORCE_ROOT, SHORT_RESET_FORCE_ROOT,
/* Variants, that clear force_root before issueing the bus reset */
LONG_RESET_NO_FORCE_ROOT, SHORT_RESET_NO_FORCE_ROOT
};
struct hpsb_host_driver {
......@@ -145,6 +170,11 @@ struct hpsb_host_driver {
*/
int (*devctl) (struct hpsb_host *host, enum devctl_cmd command, int arg);
/* ISO transmission/reception functions. Return 0 on success, -1 on failure.
* If the low-level driver does not support the new ISO API, set isoctl to NULL.
*/
int (*isoctl) (struct hpsb_iso *iso, enum isoctl_cmd command, int arg);
/* This function is mainly to redirect local CSR reads/locks to the iso
* management registers (bus manager id, bandwidth available, channels
* available) to the hardware registers in OHCI. reg is 0,1,2,3 for bus
......@@ -156,9 +186,6 @@ struct hpsb_host_driver {
quadlet_t data, quadlet_t compare);
};
/* core internal use */
void register_builtin_lowlevels(void);
/* high level internal use */
struct hpsb_highlevel;
void hl_all_hosts(void (*function)(struct hpsb_host*));
......
drivers/ieee1394/ieee1394.h
View file @ e26768dc
......@@ -15,6 +15,7 @@
#define TCODE_CYCLE_START 0x8
#define TCODE_LOCK_REQUEST 0x9
#define TCODE_ISO_DATA 0xa
#define TCODE_STREAM_DATA 0xa
#define TCODE_LOCK_RESPONSE 0xb
#define RCODE_COMPLETE 0x0
......
drivers/ieee1394/ieee1394_core.c
View file @ e26768dc
This diff is collapsed.
drivers/ieee1394/ieee1394_core.h
View file @ e26768dc
......@@ -68,7 +68,10 @@ struct hpsb_packet {
/* Very core internal, don't care. */
struct semaphore state_change;
struct list_head complete_tq;
/* Function (and possible data to pass to it) to call when this
* packet is completed. */
void (*complete_routine)(void *);
void *complete_data;
/* Store jiffies for implementing bus timeouts. */
unsigned long sendtime;
......@@ -76,8 +79,9 @@ struct hpsb_packet {
quadlet_t embedded_header[5];
};
/* add a new task for when a packet completes */
void hpsb_add_packet_complete_task(struct hpsb_packet *packet, struct hpsb_queue_struct *tq);
/* Set a task for when a packet completes */
void hpsb_set_packet_complete_task(struct hpsb_packet *packet,
void (*routine)(void *), void *data);
static inline struct hpsb_packet *driver_packet(struct list_head *l)
{
......@@ -136,6 +140,12 @@ void hpsb_selfid_received(struct hpsb_host *host, quadlet_t sid);
*/
void hpsb_selfid_complete(struct hpsb_host *host, int phyid, int isroot);
/*
* Check bus reset results to find cycle master
*/
void hpsb_check_cycle_master(struct hpsb_host *host);
/*
* Notify core of sending a packet. Ackcode is the ack code returned for async
* transmits or ACKX_SEND_ERROR if the transmission failed completely; ACKX_NONE
......
drivers/ieee1394/ieee1394_transactions.c
View file @ e26768dc
This diff is collapsed.
drivers/ieee1394/ieee1394_transactions.h
View file @ e26768dc
......@@ -4,49 +4,27 @@
#include "ieee1394_core.h"
/*
* Utility functions to fill out packet headers.
*/
void fill_async_readquad(struct hpsb_packet *packet, u64 addr);
void fill_async_readquad_resp(struct hpsb_packet *packet, int rcode,
quadlet_t data);
void fill_async_readblock(struct hpsb_packet *packet, u64 addr, int length);
void fill_async_readblock_resp(struct hpsb_packet *packet, int rcode,
int length);
void fill_async_writequad(struct hpsb_packet *packet, u64 addr, quadlet_t data);
void fill_async_writeblock(struct hpsb_packet *packet, u64 addr, int length);
void fill_async_write_resp(struct hpsb_packet *packet, int rcode);
void fill_async_lock(struct hpsb_packet *packet, u64 addr, int extcode,
int length);
void fill_async_lock_resp(struct hpsb_packet *packet, int rcode, int extcode,
int length);
void fill_iso_packet(struct hpsb_packet *packet, int length, int channel,
int tag, int sync);
void fill_phy_packet(struct hpsb_packet *packet, quadlet_t data);
/*
* Get and free transaction labels.
*/
int get_tlabel(struct hpsb_host *host, nodeid_t nodeid, int wait);
void free_tlabel(struct hpsb_host *host, nodeid_t nodeid, int tlabel);
int hpsb_get_tlabel(struct hpsb_packet *packet, int wait);
void hpsb_free_tlabel(struct hpsb_packet *packet);
struct hpsb_packet *hpsb_make_readqpacket(struct hpsb_host *host, nodeid_t node,
u64 addr);
struct hpsb_packet *hpsb_make_readbpacket(struct hpsb_host *host, nodeid_t node,
u64 addr, size_t length);
struct hpsb_packet *hpsb_make_writeqpacket(struct hpsb_host *host,
nodeid_t node, u64 addr,
quadlet_t data);
struct hpsb_packet *hpsb_make_writebpacket(struct hpsb_host *host,
nodeid_t node, u64 addr,
size_t length);
struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,
u64 addr, size_t length);
struct hpsb_packet *hpsb_make_lockpacket(struct hpsb_host *host, nodeid_t node,
u64 addr, int extcode);
u64 addr, int extcode, quadlet_t *data,
quadlet_t arg);
struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host, nodeid_t node,
u64 addr, int extcode);
u64 addr, int extcode, octlet_t *data,
octlet_t arg);
struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host,
quadlet_t data) ;
struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host,
int length, int channel,
int tag, int sync);
struct hpsb_packet *hpsb_make_writepacket (struct hpsb_host *host, nodeid_t node,
u64 addr, quadlet_t *buffer, size_t length);
/*
* hpsb_packet_success - Make sense of the ack and reply codes and
......@@ -75,10 +53,7 @@ int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation,
u64 addr, quadlet_t *buffer, size_t length);
int hpsb_lock(struct hpsb_host *host, nodeid_t node, unsigned int generation,
u64 addr, int extcode, quadlet_t *data, quadlet_t arg);
/* Generic packet creation. Used by hpsb_write. Also useful for protocol
* drivers that want to implement their own hpsb_write replacement. */
struct hpsb_packet *hpsb_make_packet (struct hpsb_host *host, nodeid_t node,
u64 addr, quadlet_t *buffer, size_t length);
int hpsb_lock64(struct hpsb_host *host, nodeid_t node, unsigned int generation,
u64 addr, int extcode, octlet_t *data, octlet_t arg);
#endif /* _IEEE1394_TRANSACTIONS_H */
drivers/ieee1394/ieee1394_types.h
View file @ e26768dc
......@@ -8,6 +8,7 @@
#include <linux/list.h>
#include <linux/init.h>
#include <linux/string.h>
#include <asm/semaphore.h>
#include <asm/byteorder.h>
......@@ -62,6 +63,30 @@
#define HPSB_PREPARE_WORK(x,y,z) PREPARE_WORK(x,y,z)
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,44)
/* pci_pool_create changed. does not take the flags arg any longer */
#define hpsb_pci_pool_create(a,b,c,d,e,f) pci_pool_create(a,b,c,d,e,f)
#else
#define hpsb_pci_pool_create(a,b,c,d,e,f) pci_pool_create(a,b,c,d,e)
#endif
/* Transaction Label handling */
struct hpsb_tlabel_pool {
u64 pool;
spinlock_t lock;
u8 next;
u32 allocations;
struct semaphore count;
};
#define HPSB_TPOOL_INIT(_tp) \
do { \
sema_init(&(_tp)->count, 63); \
spin_lock_init(&(_tp)->lock); \
(_tp)->next = 0; \
(_tp)->pool = 0; \
} while(0)
typedef u32 quadlet_t;
typedef u64 octlet_t;
......
drivers/ieee1394/iso.c 0 → 100644
View file @ e26768dc
/*
* IEEE 1394 for Linux
*
* kernel ISO transmission/reception
*
* Copyright (C) 2002 Maas Digital LLC
*
* This code is licensed under the GPL. See the file COPYING in the root
* directory of the kernel sources for details.
*/
#include <linux/slab.h>
#include "iso.h"
void hpsb_iso_stop(struct hpsb_iso *iso)
{
if(!iso->flags & HPSB_ISO_DRIVER_STARTED)
return;
iso->host->driver->isoctl(iso, iso->type == HPSB_ISO_XMIT ? XMIT_STOP : RECV_STOP, 0);
iso->flags &= ~HPSB_ISO_DRIVER_STARTED;
}
void hpsb_iso_shutdown(struct hpsb_iso *iso)
{
if(iso->flags & HPSB_ISO_DRIVER_INIT) {
hpsb_iso_stop(iso);
iso->host->driver->isoctl(iso, iso->type == HPSB_ISO_XMIT ? XMIT_SHUTDOWN : RECV_SHUTDOWN, 0);
iso->flags &= ~HPSB_ISO_DRIVER_INIT;
}
dma_region_free(&iso->buf);
kfree(iso);
}
static struct hpsb_iso* hpsb_iso_common_init(struct hpsb_host *host, enum hpsb_iso_type type,
unsigned int buf_packets,
unsigned int max_packet_size,
int channel,
int irq_interval,
void (*callback)(struct hpsb_iso*))
{
struct hpsb_iso *iso;
unsigned int packet_plus_info;
int dma_direction;
int iso_header_bytes;
const int info_bytes = sizeof(struct hpsb_iso_packet_info);
/* make sure driver supports the ISO API */
if(!host->driver->isoctl)
return NULL;
if(type == HPSB_ISO_RECV) {
/* when receiving, leave 8 extra bytes in front
of the data payload for the iso header */
iso_header_bytes = 8;
} else {
iso_header_bytes = 0;
}
/* sanitize parameters */
if(buf_packets < 2)
buf_packets = 2;
if(irq_interval < 1 || irq_interval > buf_packets / 2)
irq_interval = buf_packets / 2;
if(max_packet_size + info_bytes + iso_header_bytes > PAGE_SIZE)
return NULL;
/* size of packet payload plus the per-packet info must be a power of 2
and at most equal to the page size */
for(packet_plus_info = 256; packet_plus_info < PAGE_SIZE; packet_plus_info *= 2) {
if(packet_plus_info >= (max_packet_size + info_bytes + iso_header_bytes)) {
break;
}
}
/* allocate and write the struct hpsb_iso */
iso = kmalloc(sizeof(*iso), SLAB_KERNEL);
if(!iso)
return NULL;
iso->type = type;
iso->host = host;
iso->hostdata = NULL;
iso->callback = callback;
iso->channel = channel;
iso->irq_interval = irq_interval;
dma_region_init(&iso->buf);
iso->buf_packets = buf_packets;
iso->buf_stride = packet_plus_info;
iso->max_packet_size = max_packet_size;
iso->packet_data_offset = iso_header_bytes;
iso->packet_info_offset = iso_header_bytes + max_packet_size;
iso->first_packet = 0;
if(iso->type == HPSB_ISO_XMIT) {
atomic_set(&iso->n_dma_packets, 0);
dma_direction = PCI_DMA_TODEVICE;
} else {
atomic_set(&iso->n_dma_packets, iso->buf_packets);
dma_direction = PCI_DMA_FROMDEVICE;
}
atomic_set(&iso->overflows, 0);
iso->flags = 0;
iso->prebuffer = 0;
/* allocate the packet buffer */
if(dma_region_alloc(&iso->buf, iso->buf_packets * iso->buf_stride,
host->pdev, dma_direction))
goto err;
return iso;
err:
hpsb_iso_shutdown(iso);
return NULL;
}
int hpsb_iso_n_ready(struct hpsb_iso* iso)
{
return iso->buf_packets - atomic_read(&iso->n_dma_packets);
}
struct hpsb_iso* hpsb_iso_xmit_init(struct hpsb_host *host,
unsigned int buf_packets,
unsigned int max_packet_size,
int channel,
int speed,
int irq_interval,
void (*callback)(struct hpsb_iso*))
{
struct hpsb_iso *iso = hpsb_iso_common_init(host, HPSB_ISO_XMIT,
buf_packets, max_packet_size,
channel, irq_interval, callback);
if(!iso)
return NULL;
iso->speed = speed;
/* tell the driver to start working */
if(host->driver->isoctl(iso, XMIT_INIT, 0))
goto err;
iso->flags |= HPSB_ISO_DRIVER_INIT;
return iso;
err:
hpsb_iso_shutdown(iso);
return NULL;
}
struct hpsb_iso* hpsb_iso_recv_init(struct hpsb_host *host,
unsigned int buf_packets,
unsigned int max_packet_size,
int channel,
int irq_interval,
void (*callback)(struct hpsb_iso*))
{
struct hpsb_iso *iso = hpsb_iso_common_init(host, HPSB_ISO_RECV,
buf_packets, max_packet_size,
channel, irq_interval, callback);
if(!iso)
return NULL;
/* tell the driver to start working */
if(host->driver->isoctl(iso, RECV_INIT, 0))
goto err;
iso->flags |= HPSB_ISO_DRIVER_INIT;
return iso;
err:
hpsb_iso_shutdown(iso);
return NULL;
}
static int do_iso_xmit_start(struct hpsb_iso *iso, int cycle)
{
int retval = iso->host->driver->isoctl(iso, XMIT_START, cycle);
if(retval)
return retval;
iso->flags |= HPSB_ISO_DRIVER_STARTED;
return retval;
}
int hpsb_iso_xmit_start(struct hpsb_iso *iso, int cycle, int prebuffer)
{
if(iso->type != HPSB_ISO_XMIT)
return -1;
if(iso->flags & HPSB_ISO_DRIVER_STARTED)
return 0;
if(prebuffer < 1)
prebuffer = 1;
if(prebuffer > iso->buf_packets)
prebuffer = iso->buf_packets;
iso->prebuffer = prebuffer;
if(cycle != -1) {
/* pre-fill info->cycle */
int pkt = iso->first_packet;
int c, i;
cycle %= 8000;
c = cycle;
for(i = 0; i < iso->buf_packets; i++) {
struct hpsb_iso_packet_info *info = hpsb_iso_packet_info(iso, pkt);
info->cycle = c;
c = (c+1) % 8000;
pkt = (pkt+1) % iso->buf_packets;
}
}
/* remember the starting cycle; DMA will commence from xmit_queue_packets() */
iso->start_cycle = cycle;
return 0;
}
int hpsb_iso_recv_start(struct hpsb_iso *iso, int cycle)
{
int retval = 0;
if(iso->type != HPSB_ISO_RECV)
return -1;
if(iso->flags & HPSB_ISO_DRIVER_STARTED)
return 0;
retval = iso->host->driver->isoctl(iso, RECV_START, cycle);
if(retval)
return retval;
iso->flags |= HPSB_ISO_DRIVER_STARTED;
return retval;
}
int hpsb_iso_xmit_queue_packets(struct hpsb_iso *iso, unsigned int n_packets)
{
int i, retval;
int pkt = iso->first_packet;
if(iso->type != HPSB_ISO_XMIT)
return -1;
/* check packet sizes for sanity */
for(i = 0; i < n_packets; i++) {
struct hpsb_iso_packet_info *info = hpsb_iso_packet_info(iso, pkt);
if(info->len > iso->max_packet_size) {
printk(KERN_ERR "hpsb_iso_xmit_queue_packets: packet too long (%u, max is %u)\n",
info->len, iso->max_packet_size);
return -EINVAL;
}
pkt = (pkt+1) % iso->buf_packets;
}
retval = iso->host->driver->isoctl(iso, XMIT_QUEUE, n_packets);
if(retval)
return retval;
if(iso->prebuffer != 0) {
iso->prebuffer -= n_packets;
if(iso->prebuffer <= 0) {
iso->prebuffer = 0;
return do_iso_xmit_start(iso,
iso->start_cycle);
}
}
return 0;
}
int hpsb_iso_recv_release_packets(struct hpsb_iso *iso, unsigned int n_packets)
{
if(iso->type != HPSB_ISO_RECV)
return -1;
return iso->host->driver->isoctl(iso, RECV_RELEASE, n_packets);
}
unsigned char* hpsb_iso_packet_data(struct hpsb_iso *iso, unsigned int pkt)
{
return (iso->buf.kvirt + pkt * iso->buf_stride)
+ iso->packet_data_offset;
}
struct hpsb_iso_packet_info* hpsb_iso_packet_info(struct hpsb_iso *iso, unsigned int pkt)
{
return (struct hpsb_iso_packet_info*) ((iso->buf.kvirt + pkt * iso->buf_stride)
+ iso->packet_info_offset);
}
drivers/ieee1394/iso.h 0 → 100644
View file @ e26768dc
/*
* IEEE 1394 for Linux
*
* kernel ISO transmission/reception
*
* Copyright (C) 2002 Maas Digital LLC
*
* This code is licensed under the GPL. See the file COPYING in the root
* directory of the kernel sources for details.
*/
#ifndef IEEE1394_ISO_H
#define IEEE1394_ISO_H
#include "hosts.h"
#include "dma.h"
/* high-level ISO interface */
/* per-packet data embedded in the ringbuffer */
struct hpsb_iso_packet_info {
unsigned short len;
unsigned short cycle;
unsigned char channel; /* recv only */
unsigned char tag;
unsigned char sy;
};
/*
* each packet in the ringbuffer consists of three things:
* 1. the packet's data payload (no isochronous header)
* 2. a struct hpsb_iso_packet_info
* 3. some empty space before the next packet
*
* packets are separated by hpsb_iso.buf_stride bytes
* an even number of packets fit on one page
* no packet can be larger than one page
*/
enum hpsb_iso_type { HPSB_ISO_RECV = 0, HPSB_ISO_XMIT = 1 };
struct hpsb_iso {
enum hpsb_iso_type type;
/* pointer to low-level driver and its private data */
struct hpsb_host *host;
void *hostdata;
/* function to be called (from interrupt context) when the iso status changes */
void (*callback)(struct hpsb_iso*);
int speed; /* SPEED_100, 200, or 400 */
int channel;
/* greatest # of packets between interrupts - controls
the maximum latency of the buffer */
int irq_interval;
/* the packet ringbuffer */
struct dma_region buf;
/* # of packets in the ringbuffer */
unsigned int buf_packets;
/* offset between successive packets, in bytes -
you can assume that this is a power of 2,
and less than or equal to the page size */
int buf_stride;
/* largest possible packet size, in bytes */
unsigned int max_packet_size;
/* offset relative to (buf.kvirt + N*buf_stride) at which
the data payload begins for packet N */
int packet_data_offset;
/* offset relative to (buf.kvirt + N*buf_stride) at which the
struct hpsb_iso_packet_info is stored for packet N */
int packet_info_offset;
/* the index of the next packet that will be produced
or consumed by the user */
int first_packet;
/* number of packets owned by the low-level driver and
queued for transmission or reception.
this is related to the number of packets available
to the user process: n_ready = buf_packets - n_dma_packets */
atomic_t n_dma_packets;
/* how many times the buffer has overflowed or underflowed */
atomic_t overflows;
/* private flags to track initialization progress */
#define HPSB_ISO_DRIVER_INIT (1<<0)
#define HPSB_ISO_DRIVER_STARTED (1<<1)
unsigned int flags;
/* # of packets left to prebuffer (xmit only) */
int prebuffer;
/* starting cycle (xmit only) */
int start_cycle;
};
/* functions available to high-level drivers (e.g. raw1394) */
/* allocate the buffer and DMA context */
struct hpsb_iso* hpsb_iso_xmit_init(struct hpsb_host *host,
unsigned int buf_packets,
unsigned int max_packet_size,
int channel,
int speed,
int irq_interval,
void (*callback)(struct hpsb_iso*));
struct hpsb_iso* hpsb_iso_recv_init(struct hpsb_host *host,
unsigned int buf_packets,
unsigned int max_packet_size,
int channel,
int irq_interval,
void (*callback)(struct hpsb_iso*));
/* start/stop DMA */
int hpsb_iso_xmit_start(struct hpsb_iso *iso, int start_on_cycle, int prebuffer);
int hpsb_iso_recv_start(struct hpsb_iso *iso, int start_on_cycle);
void hpsb_iso_stop(struct hpsb_iso *iso);
/* deallocate buffer and DMA context */
void hpsb_iso_shutdown(struct hpsb_iso *iso);
/* N packets have been written to the buffer; queue them for transmission */
int hpsb_iso_xmit_queue_packets(struct hpsb_iso *xmit, unsigned int n_packets);
/* N packets have been read out of the buffer, re-use the buffer space */
int hpsb_iso_recv_release_packets(struct hpsb_iso *recv, unsigned int n_packets);
/* returns # of packets ready to send or receive */
int hpsb_iso_n_ready(struct hpsb_iso *iso);
/* returns a pointer to the payload of packet 'pkt' */
unsigned char* hpsb_iso_packet_data(struct hpsb_iso *iso, unsigned int pkt);
/* returns a pointer to the info struct of packet 'pkt' */
struct hpsb_iso_packet_info* hpsb_iso_packet_info(struct hpsb_iso *iso, unsigned int pkt);
#endif /* IEEE1394_ISO_H */
drivers/ieee1394/nodemgr.c
View file @ e26768dc
......@@ -9,9 +9,9 @@
*/
#include <linux/kernel.h>
#include <linux/config.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <asm/byteorder.h>
#include <linux/smp_lock.h>
#include <linux/interrupt.h>
#include <linux/kmod.h>
......@@ -20,6 +20,8 @@
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
#endif
#include <asm/atomic.h>
#include <asm/byteorder.h>
#include "ieee1394_types.h"
#include "ieee1394.h"
......@@ -30,6 +32,24 @@
#include "csr.h"
#include "nodemgr.h"
#ifdef CONFIG_IEEE1394_OUI_DB
struct oui_list_struct {
int oui;
char *name;
};
extern struct oui_list_struct oui_list[];
static char *nodemgr_find_oui_name(int oui) {
int i;
for (i = 0; oui_list[i].name; i++)
if (oui_list[i].oui == oui)
return oui_list[i].name;
return NULL;
}
#endif
/*
* Basically what we do here is start off retrieving the bus_info block.
......@@ -86,6 +106,7 @@ static int raw1394_read_proc(char *page, char **start, off_t off,
struct node_entry *ne;
int len;
char *out = page;
unsigned long flags;
if (down_interruptible(&nodemgr_serialize))
return -EINTR;
......@@ -102,10 +123,17 @@ static int raw1394_read_proc(char *page, char **start, off_t off,
NODE_BUS_ARGS(ne->nodeid), (unsigned long long)ne->guid);
/* Generic Node information */
PUTF(" Vendor ID: `%s' [0x%06x]\n",
ne->vendor_name ?: "Unknown", ne->vendor_id);
PUTF(" Vendor ID : `%s' [0x%06x]\n", ne->oui_name, ne->vendor_id);
if (ne->vendor_name)
PUTF(" Vendor text : `%s'\n", ne->vendor_name);
PUTF(" Capabilities: 0x%06x\n", ne->capabilities);
PUTF(" Bus Options:\n");
PUTF(" Tlabel stats:\n");
spin_lock_irqsave(&ne->tpool->lock, flags);
PUTF(" Free : %d\n", atomic_read(&ne->tpool->count.count) + 1);
PUTF(" Total : %u\n", ne->tpool->allocations);
PUTF(" Mask : %016Lx\n", (unsigned long long)ne->tpool->pool);
spin_unlock_irqrestore(&ne->tpool->lock, flags);
PUTF(" Bus Options :\n");
PUTF(" IRMC(%d) CMC(%d) ISC(%d) BMC(%d) PMC(%d) GEN(%d)\n"
" LSPD(%d) MAX_REC(%d) CYC_CLK_ACC(%d)\n",
ne->busopt.irmc, ne->busopt.cmc, ne->busopt.isc, ne->busopt.bmc,
......@@ -136,15 +164,21 @@ static int raw1394_read_proc(char *page, char **start, off_t off,
int printed = 0; // small hack
PUTF(" Unit Directory %d:\n", ud_count++);
if (ud->flags & UNIT_DIRECTORY_VENDOR_ID ||
ud->flags & UNIT_DIRECTORY_MODEL_ID) {
PUTF(" Vendor/Model ID : ");
}
if (ud->flags & UNIT_DIRECTORY_VENDOR_ID) {
PUTF(" Vendor/Model ID: %s [%06x]",
ud->vendor_name ?: "Unknown", ud->vendor_id);
PUTF("%s [%06x]", ud->vendor_name ?: "Unknown",
ud->vendor_id);
printed = 1;
}
if (ud->flags & UNIT_DIRECTORY_MODEL_ID) {
if (!printed)
PUTF(" Vendor/Model ID: %s [%06x]",
ne->vendor_name ?: "Unknown", ne->vendor_id);
if (!printed) {
PUTF("%s [%06x]", ne->vendor_name ?: "Unknown",
ne->vendor_id);
}
PUTF(" / %s [%06x]", ud->model_name ?: "Unknown", ud->model_id);
printed = 1;
}
......@@ -152,11 +186,11 @@ static int raw1394_read_proc(char *page, char **start, off_t off,
PUTF("\n");
if (ud->flags & UNIT_DIRECTORY_SPECIFIER_ID)
PUTF(" Software Specifier ID: %06x\n", ud->specifier_id);
PUTF(" Software Spec ID : %06x\n", ud->specifier_id);
if (ud->flags & UNIT_DIRECTORY_VERSION)
PUTF(" Software Version: %06x\n", ud->version);
PUTF(" Software Version : %06x\n", ud->version);
if (ud->driver)
PUTF(" Driver: %s\n", ud->driver->name);
PUTF(" Driver : %s\n", ud->driver->name);
PUTF(" Length (in quads): %d\n", ud->count);
}
......@@ -297,6 +331,7 @@ static struct node_entry *nodemgr_scan_root_directory
code = CONFIG_ROM_KEY(quad);
if (code == CONFIG_ROM_VENDOR_ID && length > 0) {
/* Check if there is a text descriptor leaf
immediately after this. */
size = nodemgr_size_text_leaf(host, nodeid, generation,
......@@ -305,22 +340,23 @@ static struct node_entry *nodemgr_scan_root_directory
address += 4;
length--;
total_size += (size + 1) * sizeof (quadlet_t);
}
else if (size < 0)
} else if (size < 0)
return NULL;
}
}
ne = kmalloc(total_size, SLAB_ATOMIC);
if (ne != NULL) {
if (size != 0) {
ne->vendor_name
= (const char *) &(ne->quadlets[2]);
ne->quadlets[size] = 0;
}
else {
ne->vendor_name = NULL;
}
ne = kmalloc(total_size, GFP_KERNEL);
if (!ne)
return NULL;
if (size != 0) {
ne->vendor_name
= (const char *) &(ne->quadlets[2]);
ne->quadlets[size] = 0;
} else {
ne->vendor_name = NULL;
}
return ne;
}
......@@ -335,6 +371,9 @@ static struct node_entry *nodemgr_create_node(octlet_t guid, quadlet_t busoption
INIT_LIST_HEAD(&ne->list);
INIT_LIST_HEAD(&ne->unit_directories);
ne->tpool = &host->tpool[nodeid & NODE_MASK];
ne->host = host;
ne->nodeid = nodeid;
ne->guid = guid;
......@@ -344,9 +383,10 @@ static struct node_entry *nodemgr_create_node(octlet_t guid, quadlet_t busoption
nodemgr_process_config_rom (ne, busoptions);
HPSB_DEBUG("%s added: Node[" NODE_BUS_FMT "] GUID[%016Lx] [%s]",
(host->node_id == nodeid) ? "Host" : "Device",
HPSB_DEBUG("%s added: ID:BUS[" NODE_BUS_FMT "] GUID[%016Lx] [%s] (%s)",
(host->node_id == nodeid) ? "Host" : "Node",
NODE_BUS_ARGS(nodeid), (unsigned long long)guid,
ne->oui_name,
ne->vendor_name ?: "Unknown");
return ne;
......@@ -648,6 +688,11 @@ static void nodemgr_process_root_directory(struct node_entry *ne)
switch (code) {
case CONFIG_ROM_VENDOR_ID:
ne->vendor_id = value;
#ifdef CONFIG_IEEE1394_OUI_DB
ne->oui_name = nodemgr_find_oui_name(value);
#else
ne->oui_name = "Unknown";
#endif
/* Now check if there is a vendor name text
string. */
if (ne->vendor_name != NULL) {
......@@ -1211,6 +1256,18 @@ struct node_entry *hpsb_nodeid_get_entry(nodeid_t nodeid)
return ne;
}
struct node_entry *hpsb_check_nodeid(nodeid_t nodeid)
{
struct node_entry *ne;
if (down_trylock(&nodemgr_serialize))
return NULL;
ne = find_entry_by_nodeid(nodeid);
up(&nodemgr_serialize);
return ne;
}
/* The following four convenience functions use a struct node_entry
* for addressing a node on the bus. They are intended for use by any
* process context, not just the nodemgr thread, so we need to be a
......@@ -1266,9 +1323,11 @@ int hpsb_node_lock(struct node_entry *ne, u64 addr,
static void nodemgr_add_host(struct hpsb_host *host)
{
struct host_info *hi = kmalloc (sizeof (struct host_info), GFP_KERNEL);
struct host_info *hi;
unsigned long flags;
hi = kmalloc(sizeof (struct host_info), in_interrupt() ? SLAB_ATOMIC : SLAB_KERNEL);
if (!hi) {
HPSB_ERR ("NodeMgr: out of memory in add host");
return;
......
drivers/ieee1394/nodemgr.h
View file @ e26768dc
......@@ -132,7 +132,11 @@ struct node_entry {
u32 capabilities;
struct list_head unit_directories;
struct hpsb_tlabel_pool *tpool;
const char *vendor_name;
char *oui_name;
quadlet_t quadlets[0];
};
......@@ -152,6 +156,10 @@ struct node_entry *hpsb_guid_get_entry(u64 guid);
* fool-proof by itself, since the nodeid can change. */
struct node_entry *hpsb_nodeid_get_entry(nodeid_t nodeid);
/* Same as above except that it will not block waiting for the nodemgr
* serialize semaphore. */
struct node_entry *hpsb_check_nodeid(nodeid_t nodeid);
/*
* If the entry refers to a local host, this function will return the pointer
* to the hpsb_host structure. It will return NULL otherwise. Once you have
......
drivers/ieee1394/ohci1394.c
View file @ e26768dc
This diff is collapsed.
drivers/ieee1394/ohci1394.h
View file @ e26768dc
......@@ -95,6 +95,7 @@ struct dma_rcv_ctx {
/* dma block descriptors */
struct dma_cmd **prg_cpu;
dma_addr_t *prg_bus;
struct pci_pool *prg_pool;
/* dma buffers */
quadlet_t **buf_cpu;
......@@ -120,6 +121,7 @@ struct dma_trm_ctx {
/* dma block descriptors */
struct at_dma_prg **prg_cpu;
dma_addr_t *prg_bus;
struct pci_pool *prg_pool;
unsigned int prg_ind;
unsigned int sent_ind;
......@@ -292,6 +294,9 @@ static inline u32 reg_read(const struct ti_ohci *ohci, int offset)
#define OHCI1394_IsoRecvIntEventClear 0x0A4
#define OHCI1394_IsoRecvIntMaskSet 0x0A8
#define OHCI1394_IsoRecvIntMaskClear 0x0AC
#define OHCI1394_InitialBandwidthAvailable 0x0B0
#define OHCI1394_InitialChannelsAvailableHi 0x0B4
#define OHCI1394_InitialChannelsAvailableLo 0x0B8
#define OHCI1394_FairnessControl 0x0DC
#define OHCI1394_LinkControlSet 0x0E0
#define OHCI1394_LinkControlClear 0x0E4
......
drivers/ieee1394/oui.db 0 → 100644
View file @ e26768dc
This diff is collapsed.
drivers/ieee1394/oui2c.sh 0 → 100644
View file @ e26768dc
#!/bin/sh
cat <<EOF
/* Generated file for OUI database */
#include <linux/config.h>
#ifdef CONFIG_IEEE1394_OUI_DB
struct oui_list_struct {
int oui;
char *name;
} oui_list[] = {
EOF
while read oui name; do
echo " { 0x$oui, \"$name\" },"
done
cat <<EOF
};
#endif /* CONFIG_IEEE1394_OUI_DB */
EOF
drivers/ieee1394/pcilynx.c
View file @ e26768dc
......@@ -19,6 +19,16 @@
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* Contributions:
*
* Manfred Weihs <weihs@ict.tuwien.ac.at>
* reading bus info block (containing GUID) from serial
* eeprom via i2c and storing it in config ROM
* Reworked code for initiating bus resets
* (long, short, with or without hold-off)
*/
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/slab.h>
......@@ -450,7 +460,7 @@ static void handle_selfid(struct ti_lynx *lynx, struct hpsb_host *host)
if (host->in_bus_reset) return; /* in bus reset again */
if (isroot) reg_set_bits(lynx, LINK_CONTROL, LINK_CONTROL_CYCMASTER);
if (isroot) reg_set_bits(lynx, LINK_CONTROL, LINK_CONTROL_CYCMASTER); //FIXME: I do not think, we need this here
reg_set_bits(lynx, LINK_CONTROL,
LINK_CONTROL_RCV_CMP_VALID | LINK_CONTROL_TX_ASYNC_EN
| LINK_CONTROL_RX_ASYNC_EN | LINK_CONTROL_CYCTIMEREN);
......@@ -563,6 +573,7 @@ static int lynx_devctl(struct hpsb_host *host, enum devctl_cmd cmd, int arg)
struct hpsb_packet *packet;
LIST_HEAD(packet_list);
unsigned long flags;
int phy_reg;
switch (cmd) {
case RESET_BUS:
......@@ -571,21 +582,140 @@ static int lynx_devctl(struct hpsb_host *host, enum devctl_cmd cmd, int arg)
break;
}
if (arg) {
arg = 3 << 6;
} else {
arg = 1 << 6;
}
retval = get_phy_reg(lynx, 1);
arg |= (retval == -1 ? 63 : retval);
retval = 0;
PRINT(KERN_INFO, lynx->id, "resetting bus on request");
switch (arg) {
case SHORT_RESET:
if (lynx->phyic.reg_1394a) {
phy_reg = get_phy_reg(lynx, 5);
if (phy_reg == -1) {
PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed");
retval = -1;
break;
}
phy_reg |= 0x40;
PRINT(KERN_INFO, lynx->id, "resetting bus (short bus reset) on request");
lynx->selfid_size = -1;
lynx->phy_reg0 = -1;
set_phy_reg(lynx, 5, phy_reg); /* set ISBR */
break;
} else {
PRINT(KERN_INFO, lynx->id, "cannot do short bus reset, because of old phy");
/* fall through to long bus reset */
}
case LONG_RESET:
phy_reg = get_phy_reg(lynx, 1);
if (phy_reg == -1) {
PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed");
retval = -1;
break;
}
phy_reg |= 0x40;
PRINT(KERN_INFO, lynx->id, "resetting bus (long bus reset) on request");
lynx->selfid_size = -1;
lynx->phy_reg0 = -1;
set_phy_reg(lynx, 1, phy_reg); /* clear RHB, set IBR */
break;
case SHORT_RESET_NO_FORCE_ROOT:
if (lynx->phyic.reg_1394a) {
phy_reg = get_phy_reg(lynx, 1);
if (phy_reg == -1) {
PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed");
retval = -1;
break;
}
if (phy_reg & 0x80) {
phy_reg &= ~0x80;
set_phy_reg(lynx, 1, phy_reg); /* clear RHB */
}
phy_reg = get_phy_reg(lynx, 5);
if (phy_reg == -1) {
PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed");
retval = -1;
break;
}
phy_reg |= 0x40;
PRINT(KERN_INFO, lynx->id, "resetting bus (short bus reset, no force_root) on request");
lynx->selfid_size = -1;
lynx->phy_reg0 = -1;
set_phy_reg(lynx, 5, phy_reg); /* set ISBR */
break;
} else {
PRINT(KERN_INFO, lynx->id, "cannot do short bus reset, because of old phy");
/* fall through to long bus reset */
}
case LONG_RESET_NO_FORCE_ROOT:
phy_reg = get_phy_reg(lynx, 1);
if (phy_reg == -1) {
PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed");
retval = -1;
break;
}
phy_reg &= ~0x80;
phy_reg |= 0x40;
PRINT(KERN_INFO, lynx->id, "resetting bus (long bus reset, no force_root) on request");
lynx->selfid_size = -1;
lynx->phy_reg0 = -1;
set_phy_reg(lynx, 1, phy_reg); /* clear RHB, set IBR */
break;
case SHORT_RESET_FORCE_ROOT:
if (lynx->phyic.reg_1394a) {
phy_reg = get_phy_reg(lynx, 1);
if (phy_reg == -1) {
PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed");
retval = -1;
break;
}
if (!(phy_reg & 0x80)) {
phy_reg |= 0x80;
set_phy_reg(lynx, 1, phy_reg); /* set RHB */
}
phy_reg = get_phy_reg(lynx, 5);
if (phy_reg == -1) {
PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed");
retval = -1;
break;
}
phy_reg |= 0x40;
PRINT(KERN_INFO, lynx->id, "resetting bus (short bus reset, force_root set) on request");
lynx->selfid_size = -1;
lynx->phy_reg0 = -1;
set_phy_reg(lynx, 5, phy_reg); /* set ISBR */
break;
} else {
PRINT(KERN_INFO, lynx->id, "cannot do short bus reset, because of old phy");
/* fall through to long bus reset */
}
case LONG_RESET_FORCE_ROOT:
phy_reg = get_phy_reg(lynx, 1);
if (phy_reg == -1) {
PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed");
retval = -1;
break;
}
phy_reg |= 0xc0;
PRINT(KERN_INFO, lynx->id, "resetting bus (long bus reset, force_root set) on request");
lynx->selfid_size = -1;
lynx->phy_reg0 = -1;
set_phy_reg(lynx, 1, phy_reg); /* set IBR and RHB */
break;
default:
PRINT(KERN_ERR, lynx->id, "unknown argument for reset_bus command %d", arg);
retval = -1;
}
lynx->selfid_size = -1;
lynx->phy_reg0 = -1;
set_phy_reg(lynx, 1, arg);
break;
case GET_CYCLE_COUNTER:
......@@ -1706,6 +1836,7 @@ static struct hpsb_host_driver lynx_driver = {
.get_rom = get_lynx_rom,
.transmit_packet = lynx_transmit,
.devctl = lynx_devctl,
.isoctl = NULL,
};
MODULE_AUTHOR("Andreas E. Bombe <andreas.bombe@munich.netsurf.de>");
......
drivers/ieee1394/raw1394.c
View file @ e26768dc
This diff is collapsed.
drivers/ieee1394/raw1394.h
View file @ e26768dc
This diff is collapsed.
drivers/ieee1394/sbp2.c
View file @ e26768dc
This diff is collapsed.
drivers/ieee1394/sbp2.h
View file @ e26768dc
This diff is collapsed.
drivers/ieee1394/video1394.c
View file @ e26768dc
......@@ -37,8 +37,7 @@
#include <linux/proc_fs.h>
#include <linux/delay.h>
#include <linux/devfs_fs_kernel.h>
#include <asm/bitops.h>
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/wrapper.h>
#include <linux/vmalloc.h>
......@@ -1249,18 +1248,15 @@ static int video1394_ioctl(struct inode *inode, struct file *file,
int video1394_mmap(struct file *file, struct vm_area_struct *vma)
{
struct file_ctx *ctx = (struct file_ctx *)file->private_data;
struct video_card *video = ctx->video;
struct ti_ohci *ohci = video->ohci;
int res = -EINVAL;
lock_kernel();
ohci = video->ohci;
if (ctx->current_ctx == NULL) {
PRINT(KERN_ERR, ohci->id, "Current iso context not set");
PRINT(KERN_ERR, ctx->video->ohci->id, "Current iso context not set");
} else
res = do_iso_mmap(ohci, ctx->current_ctx, vma);
res = do_iso_mmap(ctx->video->ohci, ctx->current_ctx, vma);
unlock_kernel();
return res;
}
......
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