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path: root/drivers/ieee1394/ieee1394_transactions.c
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Diffstat (limited to 'drivers/ieee1394/ieee1394_transactions.c')
-rw-r--r--drivers/ieee1394/ieee1394_transactions.c389
1 files changed, 196 insertions, 193 deletions
diff --git a/drivers/ieee1394/ieee1394_transactions.c b/drivers/ieee1394/ieee1394_transactions.c
index 0aa876360f9b..3fe2f6c4a253 100644
--- a/drivers/ieee1394/ieee1394_transactions.c
+++ b/drivers/ieee1394/ieee1394_transactions.c
@@ -22,7 +22,7 @@
#include "ieee1394_core.h"
#include "highlevel.h"
#include "nodemgr.h"
-
+#include "ieee1394_transactions.h"
#define PREP_ASYNC_HEAD_ADDRESS(tc) \
packet->tcode = tc; \
@@ -31,80 +31,82 @@
packet->header[1] = (packet->host->node_id << 16) | (addr >> 32); \
packet->header[2] = addr & 0xffffffff
-
static void fill_async_readquad(struct hpsb_packet *packet, u64 addr)
{
- PREP_ASYNC_HEAD_ADDRESS(TCODE_READQ);
- packet->header_size = 12;
- packet->data_size = 0;
- packet->expect_response = 1;
+ PREP_ASYNC_HEAD_ADDRESS(TCODE_READQ);
+ packet->header_size = 12;
+ packet->data_size = 0;
+ packet->expect_response = 1;
}
-static void fill_async_readblock(struct hpsb_packet *packet, u64 addr, int length)
+static void fill_async_readblock(struct hpsb_packet *packet, u64 addr,
+ int length)
{
- PREP_ASYNC_HEAD_ADDRESS(TCODE_READB);
- packet->header[3] = length << 16;
- packet->header_size = 16;
- packet->data_size = 0;
- packet->expect_response = 1;
+ PREP_ASYNC_HEAD_ADDRESS(TCODE_READB);
+ packet->header[3] = length << 16;
+ packet->header_size = 16;
+ packet->data_size = 0;
+ packet->expect_response = 1;
}
-static void fill_async_writequad(struct hpsb_packet *packet, u64 addr, quadlet_t data)
+static void fill_async_writequad(struct hpsb_packet *packet, u64 addr,
+ quadlet_t data)
{
- PREP_ASYNC_HEAD_ADDRESS(TCODE_WRITEQ);
- packet->header[3] = data;
- packet->header_size = 16;
- packet->data_size = 0;
- packet->expect_response = 1;
+ PREP_ASYNC_HEAD_ADDRESS(TCODE_WRITEQ);
+ packet->header[3] = data;
+ packet->header_size = 16;
+ packet->data_size = 0;
+ packet->expect_response = 1;
}
-static void fill_async_writeblock(struct hpsb_packet *packet, u64 addr, int length)
+static void fill_async_writeblock(struct hpsb_packet *packet, u64 addr,
+ int length)
{
- PREP_ASYNC_HEAD_ADDRESS(TCODE_WRITEB);
- packet->header[3] = length << 16;
- packet->header_size = 16;
- packet->expect_response = 1;
- packet->data_size = length + (length % 4 ? 4 - (length % 4) : 0);
+ PREP_ASYNC_HEAD_ADDRESS(TCODE_WRITEB);
+ packet->header[3] = length << 16;
+ packet->header_size = 16;
+ packet->expect_response = 1;
+ packet->data_size = length + (length % 4 ? 4 - (length % 4) : 0);
}
static void fill_async_lock(struct hpsb_packet *packet, u64 addr, int extcode,
- int length)
+ int length)
{
- PREP_ASYNC_HEAD_ADDRESS(TCODE_LOCK_REQUEST);
- packet->header[3] = (length << 16) | extcode;
- packet->header_size = 16;
- packet->data_size = length;
- packet->expect_response = 1;
+ PREP_ASYNC_HEAD_ADDRESS(TCODE_LOCK_REQUEST);
+ packet->header[3] = (length << 16) | extcode;
+ packet->header_size = 16;
+ packet->data_size = length;
+ packet->expect_response = 1;
}
static void fill_iso_packet(struct hpsb_packet *packet, int length, int channel,
- int tag, int sync)
+ int tag, int sync)
{
- packet->header[0] = (length << 16) | (tag << 14) | (channel << 8)
- | (TCODE_ISO_DATA << 4) | sync;
+ packet->header[0] = (length << 16) | (tag << 14) | (channel << 8)
+ | (TCODE_ISO_DATA << 4) | sync;
- packet->header_size = 4;
- packet->data_size = length;
- packet->type = hpsb_iso;
- packet->tcode = TCODE_ISO_DATA;
+ packet->header_size = 4;
+ packet->data_size = length;
+ packet->type = hpsb_iso;
+ packet->tcode = TCODE_ISO_DATA;
}
static void fill_phy_packet(struct hpsb_packet *packet, quadlet_t data)
{
- packet->header[0] = data;
- packet->header[1] = ~data;
- packet->header_size = 8;
- packet->data_size = 0;
- packet->expect_response = 0;
- packet->type = hpsb_raw; /* No CRC added */
- packet->speed_code = IEEE1394_SPEED_100; /* Force speed to be 100Mbps */
+ packet->header[0] = data;
+ packet->header[1] = ~data;
+ packet->header_size = 8;
+ packet->data_size = 0;
+ packet->expect_response = 0;
+ packet->type = hpsb_raw; /* No CRC added */
+ packet->speed_code = IEEE1394_SPEED_100; /* Force speed to be 100Mbps */
}
static void fill_async_stream_packet(struct hpsb_packet *packet, int length,
int channel, int tag, int sync)
{
packet->header[0] = (length << 16) | (tag << 14) | (channel << 8)
- | (TCODE_STREAM_DATA << 4) | sync;
+ | (TCODE_STREAM_DATA << 4) | sync;
packet->header_size = 4;
packet->data_size = length;
@@ -171,99 +173,96 @@ int hpsb_get_tlabel(struct hpsb_packet *packet)
*/
void hpsb_free_tlabel(struct hpsb_packet *packet)
{
- unsigned long flags;
+ unsigned long flags;
struct hpsb_tlabel_pool *tp;
tp = &packet->host->tpool[packet->node_id & NODE_MASK];
BUG_ON(packet->tlabel > 63 || packet->tlabel < 0);
- spin_lock_irqsave(&tp->lock, flags);
+ spin_lock_irqsave(&tp->lock, flags);
BUG_ON(!test_and_clear_bit(packet->tlabel, tp->pool));
- spin_unlock_irqrestore(&tp->lock, flags);
+ spin_unlock_irqrestore(&tp->lock, flags);
up(&tp->count);
}
-
-
int hpsb_packet_success(struct hpsb_packet *packet)
{
- switch (packet->ack_code) {
- case ACK_PENDING:
- switch ((packet->header[1] >> 12) & 0xf) {
- case RCODE_COMPLETE:
- return 0;
- case RCODE_CONFLICT_ERROR:
- return -EAGAIN;
- case RCODE_DATA_ERROR:
- return -EREMOTEIO;
- case RCODE_TYPE_ERROR:
- return -EACCES;
- case RCODE_ADDRESS_ERROR:
- return -EINVAL;
- default:
- HPSB_ERR("received reserved rcode %d from node %d",
- (packet->header[1] >> 12) & 0xf,
- packet->node_id);
- return -EAGAIN;
- }
- HPSB_PANIC("reached unreachable code 1 in %s", __FUNCTION__);
-
- case ACK_BUSY_X:
- case ACK_BUSY_A:
- case ACK_BUSY_B:
- return -EBUSY;
-
- case ACK_TYPE_ERROR:
- return -EACCES;
-
- case ACK_COMPLETE:
- if (packet->tcode == TCODE_WRITEQ
- || packet->tcode == TCODE_WRITEB) {
- return 0;
- } else {
- HPSB_ERR("impossible ack_complete from node %d "
- "(tcode %d)", packet->node_id, packet->tcode);
- return -EAGAIN;
- }
-
-
- case ACK_DATA_ERROR:
- if (packet->tcode == TCODE_WRITEB
- || packet->tcode == TCODE_LOCK_REQUEST) {
- return -EAGAIN;
- } else {
- HPSB_ERR("impossible ack_data_error from node %d "
- "(tcode %d)", packet->node_id, packet->tcode);
- return -EAGAIN;
- }
-
- case ACK_ADDRESS_ERROR:
- return -EINVAL;
-
- case ACK_TARDY:
- case ACK_CONFLICT_ERROR:
- case ACKX_NONE:
- case ACKX_SEND_ERROR:
- case ACKX_ABORTED:
- case ACKX_TIMEOUT:
- /* error while sending */
- return -EAGAIN;
-
- default:
- HPSB_ERR("got invalid ack %d from node %d (tcode %d)",
- packet->ack_code, packet->node_id, packet->tcode);
- return -EAGAIN;
- }
-
- HPSB_PANIC("reached unreachable code 2 in %s", __FUNCTION__);
+ switch (packet->ack_code) {
+ case ACK_PENDING:
+ switch ((packet->header[1] >> 12) & 0xf) {
+ case RCODE_COMPLETE:
+ return 0;
+ case RCODE_CONFLICT_ERROR:
+ return -EAGAIN;
+ case RCODE_DATA_ERROR:
+ return -EREMOTEIO;
+ case RCODE_TYPE_ERROR:
+ return -EACCES;
+ case RCODE_ADDRESS_ERROR:
+ return -EINVAL;
+ default:
+ HPSB_ERR("received reserved rcode %d from node %d",
+ (packet->header[1] >> 12) & 0xf,
+ packet->node_id);
+ return -EAGAIN;
+ }
+ HPSB_PANIC("reached unreachable code 1 in %s", __FUNCTION__);
+
+ case ACK_BUSY_X:
+ case ACK_BUSY_A:
+ case ACK_BUSY_B:
+ return -EBUSY;
+
+ case ACK_TYPE_ERROR:
+ return -EACCES;
+
+ case ACK_COMPLETE:
+ if (packet->tcode == TCODE_WRITEQ
+ || packet->tcode == TCODE_WRITEB) {
+ return 0;
+ } else {
+ HPSB_ERR("impossible ack_complete from node %d "
+ "(tcode %d)", packet->node_id, packet->tcode);
+ return -EAGAIN;
+ }
+
+ case ACK_DATA_ERROR:
+ if (packet->tcode == TCODE_WRITEB
+ || packet->tcode == TCODE_LOCK_REQUEST) {
+ return -EAGAIN;
+ } else {
+ HPSB_ERR("impossible ack_data_error from node %d "
+ "(tcode %d)", packet->node_id, packet->tcode);
+ return -EAGAIN;
+ }
+
+ case ACK_ADDRESS_ERROR:
+ return -EINVAL;
+
+ case ACK_TARDY:
+ case ACK_CONFLICT_ERROR:
+ case ACKX_NONE:
+ case ACKX_SEND_ERROR:
+ case ACKX_ABORTED:
+ case ACKX_TIMEOUT:
+ /* error while sending */
+ return -EAGAIN;
+
+ default:
+ HPSB_ERR("got invalid ack %d from node %d (tcode %d)",
+ packet->ack_code, packet->node_id, packet->tcode);
+ return -EAGAIN;
+ }
+
+ HPSB_PANIC("reached unreachable code 2 in %s", __FUNCTION__);
}
struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,
u64 addr, size_t length)
{
- struct hpsb_packet *packet;
+ struct hpsb_packet *packet;
if (length == 0)
return NULL;
@@ -288,8 +287,9 @@ struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,
return packet;
}
-struct hpsb_packet *hpsb_make_writepacket (struct hpsb_host *host, nodeid_t node,
- u64 addr, quadlet_t *buffer, size_t length)
+struct hpsb_packet *hpsb_make_writepacket(struct hpsb_host *host, nodeid_t node,
+ u64 addr, quadlet_t * buffer,
+ size_t length)
{
struct hpsb_packet *packet;
@@ -300,7 +300,7 @@ struct hpsb_packet *hpsb_make_writepacket (struct hpsb_host *host, nodeid_t node
if (!packet)
return NULL;
- if (length % 4) { /* zero padding bytes */
+ if (length % 4) { /* zero padding bytes */
packet->data[length >> 2] = 0;
}
packet->host = host;
@@ -322,8 +322,9 @@ struct hpsb_packet *hpsb_make_writepacket (struct hpsb_host *host, nodeid_t node
return packet;
}
-struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer, int length,
- int channel, int tag, int sync)
+struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 * buffer,
+ int length, int channel, int tag,
+ int sync)
{
struct hpsb_packet *packet;
@@ -334,7 +335,7 @@ struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer, i
if (!packet)
return NULL;
- if (length % 4) { /* zero padding bytes */
+ if (length % 4) { /* zero padding bytes */
packet->data[length >> 2] = 0;
}
packet->host = host;
@@ -352,14 +353,15 @@ struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer, i
}
struct hpsb_packet *hpsb_make_lockpacket(struct hpsb_host *host, nodeid_t node,
- u64 addr, int extcode, quadlet_t *data,
- quadlet_t arg)
+ u64 addr, int extcode,
+ quadlet_t * data, quadlet_t arg)
{
struct hpsb_packet *p;
u32 length;
p = hpsb_alloc_packet(8);
- if (!p) return NULL;
+ if (!p)
+ return NULL;
p->host = host;
p->node_id = node;
@@ -388,15 +390,16 @@ struct hpsb_packet *hpsb_make_lockpacket(struct hpsb_host *host, nodeid_t node,
return p;
}
-struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host, nodeid_t node,
- u64 addr, int extcode, octlet_t *data,
- octlet_t arg)
+struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host,
+ nodeid_t node, u64 addr, int extcode,
+ octlet_t * data, octlet_t arg)
{
struct hpsb_packet *p;
u32 length;
p = hpsb_alloc_packet(16);
- if (!p) return NULL;
+ if (!p)
+ return NULL;
p->host = host;
p->node_id = node;
@@ -429,18 +432,18 @@ struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host, nodeid_t node
return p;
}
-struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host,
- quadlet_t data)
+struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host, quadlet_t data)
{
- struct hpsb_packet *p;
+ struct hpsb_packet *p;
- p = hpsb_alloc_packet(0);
- if (!p) return NULL;
+ p = hpsb_alloc_packet(0);
+ if (!p)
+ return NULL;
- p->host = host;
- fill_phy_packet(p, data);
+ p->host = host;
+ fill_phy_packet(p, data);
- return p;
+ return p;
}
struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host,
@@ -450,7 +453,8 @@ struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host,
struct hpsb_packet *p;
p = hpsb_alloc_packet(length);
- if (!p) return NULL;
+ if (!p)
+ return NULL;
p->host = host;
fill_iso_packet(p, length, channel, tag, sync);
@@ -466,47 +470,46 @@ struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host,
*/
int hpsb_read(struct hpsb_host *host, nodeid_t node, unsigned int generation,
- u64 addr, quadlet_t *buffer, size_t length)
+ u64 addr, quadlet_t * buffer, size_t length)
{
- struct hpsb_packet *packet;
- int retval = 0;
+ struct hpsb_packet *packet;
+ int retval = 0;
- if (length == 0)
- return -EINVAL;
+ if (length == 0)
+ return -EINVAL;
- BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
+ BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
packet = hpsb_make_readpacket(host, node, addr, length);
- if (!packet) {
- return -ENOMEM;
- }
+ if (!packet) {
+ return -ENOMEM;
+ }
packet->generation = generation;
- retval = hpsb_send_packet_and_wait(packet);
+ retval = hpsb_send_packet_and_wait(packet);
if (retval < 0)
goto hpsb_read_fail;
- retval = hpsb_packet_success(packet);
+ retval = hpsb_packet_success(packet);
- if (retval == 0) {
- if (length == 4) {
- *buffer = packet->header[3];
- } else {
- memcpy(buffer, packet->data, length);
- }
- }
+ if (retval == 0) {
+ if (length == 4) {
+ *buffer = packet->header[3];
+ } else {
+ memcpy(buffer, packet->data, length);
+ }
+ }
-hpsb_read_fail:
- hpsb_free_tlabel(packet);
- hpsb_free_packet(packet);
+ hpsb_read_fail:
+ hpsb_free_tlabel(packet);
+ hpsb_free_packet(packet);
- return retval;
+ return retval;
}
-
int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation,
- u64 addr, quadlet_t *buffer, size_t length)
+ u64 addr, quadlet_t * buffer, size_t length)
{
struct hpsb_packet *packet;
int retval;
@@ -514,62 +517,61 @@ int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation,
if (length == 0)
return -EINVAL;
- BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
+ BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
- packet = hpsb_make_writepacket (host, node, addr, buffer, length);
+ packet = hpsb_make_writepacket(host, node, addr, buffer, length);
if (!packet)
return -ENOMEM;
packet->generation = generation;
- retval = hpsb_send_packet_and_wait(packet);
+ retval = hpsb_send_packet_and_wait(packet);
if (retval < 0)
goto hpsb_write_fail;
- retval = hpsb_packet_success(packet);
+ retval = hpsb_packet_success(packet);
-hpsb_write_fail:
- hpsb_free_tlabel(packet);
- hpsb_free_packet(packet);
+ hpsb_write_fail:
+ hpsb_free_tlabel(packet);
+ hpsb_free_packet(packet);
- return retval;
+ return retval;
}
#if 0
int hpsb_lock(struct hpsb_host *host, nodeid_t node, unsigned int generation,
- u64 addr, int extcode, quadlet_t *data, quadlet_t arg)
+ u64 addr, int extcode, quadlet_t * data, quadlet_t arg)
{
- struct hpsb_packet *packet;
- int retval = 0;
+ struct hpsb_packet *packet;
+ int retval = 0;
- BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
+ BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
packet = hpsb_make_lockpacket(host, node, addr, extcode, data, arg);
- if (!packet)
- return -ENOMEM;
+ if (!packet)
+ return -ENOMEM;
packet->generation = generation;
- retval = hpsb_send_packet_and_wait(packet);
+ retval = hpsb_send_packet_and_wait(packet);
if (retval < 0)
goto hpsb_lock_fail;
- retval = hpsb_packet_success(packet);
+ retval = hpsb_packet_success(packet);
- if (retval == 0) {
- *data = packet->data[0];
- }
+ if (retval == 0) {
+ *data = packet->data[0];
+ }
-hpsb_lock_fail:
- hpsb_free_tlabel(packet);
- hpsb_free_packet(packet);
+ hpsb_lock_fail:
+ hpsb_free_tlabel(packet);
+ hpsb_free_packet(packet);
- return retval;
+ return retval;
}
-
int hpsb_send_gasp(struct hpsb_host *host, int channel, unsigned int generation,
- quadlet_t *buffer, size_t length, u32 specifier_id,
+ quadlet_t * buffer, size_t length, u32 specifier_id,
unsigned int version)
{
struct hpsb_packet *packet;
@@ -586,7 +588,8 @@ int hpsb_send_gasp(struct hpsb_host *host, int channel, unsigned int generation,
return -ENOMEM;
packet->data[0] = cpu_to_be32((host->node_id << 16) | specifier_id_hi);
- packet->data[1] = cpu_to_be32((specifier_id_lo << 24) | (version & 0x00ffffff));
+ packet->data[1] =
+ cpu_to_be32((specifier_id_lo << 24) | (version & 0x00ffffff));
memcpy(&(packet->data[2]), buffer, length - 8);
@@ -601,4 +604,4 @@ int hpsb_send_gasp(struct hpsb_host *host, int channel, unsigned int generation,
return retval;
}
-#endif /* 0 */
+#endif /* 0 */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 13:02:09 +0100