===================================================================
@@ -1,6 +1,6 @@
config DVB_FIREDTV
tristate "FireDTV and FloppyDTV"
- depends on DVB_CORE && IEEE1394
+ depends on DVB_CORE && (FIREWIRE || IEEE1394)
help
Support for DVB receivers from Digital Everywhere
which are connected via IEEE 1394 (FireWire).
@@ -13,8 +13,11 @@ config DVB_FIREDTV
if DVB_FIREDTV
+config DVB_FIREDTV_FIREWIRE
+ def_bool FIREWIRE = y || (FIREWIRE = m && DVB_FIREDTV = m)
+
config DVB_FIREDTV_IEEE1394
- def_bool IEEE1394
+ def_bool IEEE1394 = y || (IEEE1394 = m && DVB_FIREDTV = m)
config DVB_FIREDTV_INPUT
def_bool INPUT = y || (INPUT = m && DVB_FIREDTV = m)
===================================================================
@@ -1,6 +1,7 @@
obj-$(CONFIG_DVB_FIREDTV) += firedtv.o
firedtv-y := firedtv-avc.o firedtv-ci.o firedtv-dvb.o firedtv-fe.o
+firedtv-$(CONFIG_DVB_FIREDTV_FIREWIRE) += firedtv-fw.o
firedtv-$(CONFIG_DVB_FIREDTV_IEEE1394) += firedtv-1394.o
firedtv-$(CONFIG_DVB_FIREDTV_INPUT) += firedtv-rc.o
===================================================================
@@ -1,5 +1,5 @@
/*
- * FireDTV driver (formerly known as FireSAT)
+ * FireDTV driver -- ieee1394 I/O backend
*
* Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
* Copyright (C) 2007-2008 Ben Backx <ben@bbackx.com>
@@ -261,6 +261,7 @@ static int node_update(struct unit_direc
static struct hpsb_protocol_driver fdtv_driver = {
.name = "firedtv",
+ .id_table = fdtv_id_table,
.update = node_update,
.driver = {
.probe = node_probe,
@@ -273,12 +274,11 @@ static struct hpsb_highlevel fdtv_highle
.fcp_request = fcp_request,
};
-int __init fdtv_1394_init(struct ieee1394_device_id id_table[])
+int __init fdtv_1394_init(void)
{
int ret;
hpsb_register_highlevel(&fdtv_highlevel);
- fdtv_driver.id_table = id_table;
ret = hpsb_register_protocol(&fdtv_driver);
if (ret) {
printk(KERN_ERR "firedtv: failed to register protocol\n");
===================================================================
@@ -297,7 +297,7 @@ struct firedtv *fdtv_alloc(struct device
#define AVC_UNIT_SPEC_ID_ENTRY 0x00a02d
#define AVC_SW_VERSION_ENTRY 0x010001
-static struct ieee1394_device_id fdtv_id_table[] = {
+const struct ieee1394_device_id fdtv_id_table[] = {
{
/* FloppyDTV S/CI and FloppyDTV S2 */
.match_flags = MATCH_FLAGS,
@@ -346,12 +346,23 @@ MODULE_DEVICE_TABLE(ieee1394, fdtv_id_ta
static int __init fdtv_init(void)
{
- return fdtv_1394_init(fdtv_id_table);
+ int ret;
+
+ ret = fdtv_fw_init();
+ if (ret < 0)
+ return ret;
+
+ ret = fdtv_1394_init();
+ if (ret < 0)
+ fdtv_fw_exit();
+
+ return ret;
}
static void __exit fdtv_exit(void)
{
fdtv_1394_exit();
+ fdtv_fw_exit();
}
module_init(fdtv_init);
===================================================================
@@ -0,0 +1,385 @@
+/*
+ * FireDTV driver -- firewire I/O backend
+ */
+
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/firewire.h>
+#include <linux/firewire-constants.h>
+#include <linux/highmem.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+
+#include <asm/page.h>
+
+#include <dvb_demux.h>
+
+#include "firedtv.h"
+
+static LIST_HEAD(node_list);
+static DEFINE_SPINLOCK(node_list_lock);
+
+static inline struct fw_device *device_of(struct firedtv *fdtv)
+{
+ return fw_device(fdtv->device->parent);
+}
+
+static int node_req(struct firedtv *fdtv, u64 addr, void *data, size_t len,
+ int tcode)
+{
+ struct fw_device *device = device_of(fdtv);
+ int rcode, generation = device->generation;
+
+ smp_rmb(); /* node_id vs. generation */
+
+ rcode = fw_run_transaction(device->card, tcode, device->node_id,
+ generation, device->max_speed, addr, data, len);
+
+ return rcode != RCODE_COMPLETE ? -EIO : 0;
+}
+
+static int node_lock(struct firedtv *fdtv, u64 addr, __be32 data[])
+{
+ return node_req(fdtv, addr, data, 8, TCODE_LOCK_COMPARE_SWAP);
+}
+
+static int node_read(struct firedtv *fdtv, u64 addr, void *data, size_t len)
+{
+ return node_req(fdtv, addr, data, len, len == 4 ?
+ TCODE_READ_QUADLET_REQUEST : TCODE_READ_BLOCK_REQUEST);
+}
+
+static int node_write(struct firedtv *fdtv, u64 addr, void *data, size_t len)
+{
+ return node_req(fdtv, addr, data, len, TCODE_WRITE_BLOCK_REQUEST);
+}
+
+#define ISO_HEADER_SIZE 4
+#define CIP_HEADER_SIZE 8
+#define MPEG2_TS_HEADER_SIZE 4
+#define MPEG2_TS_SOURCE_PACKET_SIZE (4 + 188)
+
+#define MAX_PACKET_SIZE 1024 /* 776, rounded up to 2^n */
+#define PACKETS_PER_PAGE (PAGE_SIZE / MAX_PACKET_SIZE)
+#define N_PACKETS 64 /* buffer size */
+#define N_PAGES DIV_ROUND_UP(N_PACKETS, PACKETS_PER_PAGE)
+#define IRQ_INTERVAL 16
+
+struct firedtv_receive_context {
+ struct fw_iso_context *context;
+ struct fw_iso_buffer buffer;
+ int interrupt_packet;
+ int current_packet;
+ char *packets[N_PACKETS];
+};
+
+static int queue_iso(struct firedtv_receive_context *ctx, int index)
+{
+ struct fw_iso_packet p;
+ int err;
+
+ p.payload_length = MAX_PACKET_SIZE;
+ p.interrupt = !(ctx->interrupt_packet & (IRQ_INTERVAL - 1));
+ p.skip = 0;
+ p.header_length = ISO_HEADER_SIZE;
+
+ err = fw_iso_context_queue(ctx->context, &p, &ctx->buffer,
+ index * MAX_PACKET_SIZE);
+ if (!err)
+ ctx->interrupt_packet++;
+
+ return err;
+}
+
+static void handle_iso(struct fw_iso_context *context, u32 cycle,
+ size_t header_length, void *header, void *data)
+{
+ struct firedtv *fdtv = data;
+ struct firedtv_receive_context *ctx = fdtv->backend_data;
+ __be32 *h, *h_end;
+ int i = ctx->current_packet, length, err;
+ char *p, *p_end;
+
+ for (h = header, h_end = h + header_length / 4; h < h_end; h++) {
+ length = be32_to_cpup(h) >> 16;
+ if (unlikely(length > MAX_PACKET_SIZE)) {
+ dev_err(fdtv->device, "length = %d\n", length);
+ length = MAX_PACKET_SIZE;
+ }
+
+ p = ctx->packets[i];
+ p_end = p + length;
+
+ for (p += CIP_HEADER_SIZE + MPEG2_TS_HEADER_SIZE; p < p_end;
+ p += MPEG2_TS_SOURCE_PACKET_SIZE)
+ dvb_dmx_swfilter_packets(&fdtv->demux, p, 1);
+
+ err = queue_iso(ctx, i);
+ if (unlikely(err))
+ dev_err(fdtv->device, "requeue failed\n");
+
+ i = (i + 1) & (N_PACKETS - 1);
+ }
+ ctx->current_packet = i;
+}
+
+static int start_iso(struct firedtv *fdtv)
+{
+ struct firedtv_receive_context *ctx;
+ struct fw_device *device = device_of(fdtv);
+ char *p;
+ int i, j, k, err;
+
+ ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ctx->context = fw_iso_context_create(device->card,
+ FW_ISO_CONTEXT_RECEIVE, fdtv->isochannel,
+ device->max_speed, ISO_HEADER_SIZE, handle_iso, fdtv);
+ if (IS_ERR(ctx->context)) {
+ err = PTR_ERR(ctx->context);
+ goto fail_free;
+ }
+
+ err = fw_iso_buffer_init(&ctx->buffer, device->card,
+ N_PAGES, DMA_FROM_DEVICE);
+ if (err)
+ goto fail_context_destroy;
+
+ ctx->interrupt_packet = 1;
+ ctx->current_packet = 0;
+
+ for (i = 0, k = 0; k < N_PAGES; k++) {
+ p = kmap(ctx->buffer.pages[k]);
+ for (j = 0; j < PACKETS_PER_PAGE && i < N_PACKETS; j++, i++)
+ ctx->packets[i] = p + j * MAX_PACKET_SIZE;
+ }
+
+ for (i = 0; i < N_PACKETS; i++) {
+ err = queue_iso(ctx, i);
+ if (err)
+ goto fail;
+ }
+
+ err = fw_iso_context_start(ctx->context, -1, 0,
+ FW_ISO_CONTEXT_MATCH_ALL_TAGS);
+ if (err)
+ goto fail;
+
+ fdtv->backend_data = ctx;
+
+ return 0;
+fail:
+ fw_iso_buffer_destroy(&ctx->buffer, device->card);
+fail_context_destroy:
+ fw_iso_context_destroy(ctx->context);
+fail_free:
+ kfree(ctx);
+
+ return err;
+}
+
+static void stop_iso(struct firedtv *fdtv)
+{
+ struct firedtv_receive_context *ctx = fdtv->backend_data;
+
+ fw_iso_context_stop(ctx->context);
+ fw_iso_buffer_destroy(&ctx->buffer, device_of(fdtv)->card);
+ fw_iso_context_destroy(ctx->context);
+ kfree(ctx);
+}
+
+static const struct firedtv_backend backend = {
+ .lock = node_lock,
+ .read = node_read,
+ .write = node_write,
+ .start_iso = start_iso,
+ .stop_iso = stop_iso,
+};
+
+static void handle_fcp(struct fw_card *card, struct fw_request *request,
+ int tcode, int destination, int source, int generation,
+ int speed, unsigned long long offset,
+ void *payload, size_t length, void *callback_data)
+{
+ struct firedtv *f, *fdtv = NULL;
+ struct fw_device *device;
+ unsigned long flags;
+ int su;
+
+ if ((tcode != TCODE_WRITE_QUADLET_REQUEST &&
+ tcode != TCODE_WRITE_BLOCK_REQUEST) ||
+ offset != CSR_REGISTER_BASE + CSR_FCP_RESPONSE ||
+ length == 0 ||
+ (((u8 *)payload)[0] & 0xf0) != 0) {
+ fw_send_response(card, request, RCODE_TYPE_ERROR);
+ return;
+ }
+
+ su = ((u8 *)payload)[1] & 0x7;
+
+ spin_lock_irqsave(&node_list_lock, flags);
+ list_for_each_entry(f, &node_list, list) {
+ device = device_of(f);
+ if (device->generation != generation)
+ continue;
+
+ smp_rmb(); /* node_id vs. generation */
+
+ if (device->card == card &&
+ device->node_id == source &&
+ (f->subunit == su || (f->subunit == 0 && su == 0x7))) {
+ fdtv = f;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&node_list_lock, flags);
+
+ if (fdtv) {
+ avc_recv(fdtv, payload, length);
+ fw_send_response(card, request, RCODE_COMPLETE);
+ }
+}
+
+static struct fw_address_handler fcp_handler = {
+ .length = CSR_FCP_END - CSR_FCP_RESPONSE,
+ .address_callback = handle_fcp,
+};
+
+static const struct fw_address_region fcp_region = {
+ .start = CSR_REGISTER_BASE + CSR_FCP_RESPONSE,
+ .end = CSR_REGISTER_BASE + CSR_FCP_END,
+};
+
+/* Adjust the template string if models with longer names appear. */
+#define MAX_MODEL_NAME_LEN ((int)DIV_ROUND_UP(sizeof("FireDTV ????"), 4))
+
+static size_t model_name(u32 *directory, __be32 *buffer)
+{
+ struct fw_csr_iterator ci;
+ int i, length, key, value, last_key = 0;
+ u32 *block = NULL;
+
+ fw_csr_iterator_init(&ci, directory);
+ while (fw_csr_iterator_next(&ci, &key, &value)) {
+ if (last_key == CSR_MODEL &&
+ key == (CSR_DESCRIPTOR | CSR_LEAF))
+ block = ci.p - 1 + value;
+ last_key = key;
+ }
+
+ if (block == NULL)
+ return 0;
+
+ length = min((int)(block[0] >> 16) - 2, MAX_MODEL_NAME_LEN);
+ if (length <= 0)
+ return 0;
+
+ /* fast-forward to text string */
+ block += 3;
+
+ for (i = 0; i < length; i++)
+ buffer[i] = cpu_to_be32(block[i]);
+
+ return length * 4;
+}
+
+static int node_probe(struct device *dev)
+{
+ struct firedtv *fdtv;
+ __be32 name[MAX_MODEL_NAME_LEN];
+ int name_len, err;
+
+ name_len = model_name(fw_unit(dev)->directory, name);
+
+ fdtv = fdtv_alloc(dev, &backend, (char *)name, name_len);
+ if (!fdtv)
+ return -ENOMEM;
+
+ err = fdtv_register_rc(fdtv, dev);
+ if (err)
+ goto fail_free;
+
+ spin_lock_irq(&node_list_lock);
+ list_add_tail(&fdtv->list, &node_list);
+ spin_unlock_irq(&node_list_lock);
+
+ err = avc_identify_subunit(fdtv);
+ if (err)
+ goto fail;
+
+ err = fdtv_dvb_register(fdtv);
+ if (err)
+ goto fail;
+
+ avc_register_remote_control(fdtv);
+
+ return 0;
+fail:
+ spin_lock_irq(&node_list_lock);
+ list_del(&fdtv->list);
+ spin_unlock_irq(&node_list_lock);
+ fdtv_unregister_rc(fdtv);
+fail_free:
+ kfree(fdtv);
+
+ return err;
+}
+
+static int node_remove(struct device *dev)
+{
+ struct firedtv *fdtv = dev_get_drvdata(dev);
+
+ fdtv_dvb_unregister(fdtv);
+
+ spin_lock_irq(&node_list_lock);
+ list_del(&fdtv->list);
+ spin_unlock_irq(&node_list_lock);
+
+ fdtv_unregister_rc(fdtv);
+
+ kfree(fdtv);
+ return 0;
+}
+
+static void node_update(struct fw_unit *unit)
+{
+ struct firedtv *fdtv = dev_get_drvdata(&unit->device);
+
+ if (fdtv->isochannel >= 0)
+ cmp_establish_pp_connection(fdtv, fdtv->subunit,
+ fdtv->isochannel);
+}
+
+static struct fw_driver fdtv_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "firedtv",
+ .bus = &fw_bus_type,
+ .probe = node_probe,
+ .remove = node_remove,
+ },
+ .update = node_update,
+ .id_table = fdtv_id_table,
+};
+
+int __init fdtv_fw_init(void)
+{
+ int ret;
+
+ ret = fw_core_add_address_handler(&fcp_handler, &fcp_region);
+ if (ret < 0)
+ return ret;
+
+ return driver_register(&fdtv_driver.driver);
+}
+
+void fdtv_fw_exit(void)
+{
+ driver_unregister(&fdtv_driver.driver);
+ fw_core_remove_address_handler(&fcp_handler);
+}
===================================================================
@@ -16,6 +16,7 @@
#include <linux/dvb/dmx.h>
#include <linux/dvb/frontend.h>
#include <linux/list.h>
+#include <linux/mod_devicetable.h>
#include <linux/mutex.h>
#include <linux/spinlock_types.h>
#include <linux/types.h>
@@ -119,10 +120,10 @@ struct firedtv {
/* firedtv-1394.c */
#ifdef CONFIG_DVB_FIREDTV_IEEE1394
-int fdtv_1394_init(struct ieee1394_device_id id_table[]);
+int fdtv_1394_init(void);
void fdtv_1394_exit(void);
#else
-static inline int fdtv_1394_init(struct ieee1394_device_id it[]) { return 0; }
+static inline int fdtv_1394_init(void) { return 0; }
static inline void fdtv_1394_exit(void) {}
#endif
@@ -163,10 +164,20 @@ struct firedtv *fdtv_alloc(struct device
const struct firedtv_backend *backend,
const char *name, size_t name_len);
extern const char *fdtv_model_names[];
+extern const struct ieee1394_device_id fdtv_id_table[];
/* firedtv-fe.c */
void fdtv_frontend_init(struct firedtv *fdtv);
+/* firedtv-fw.c */
+#ifdef CONFIG_DVB_FIREDTV_FIREWIRE
+int fdtv_fw_init(void);
+void fdtv_fw_exit(void);
+#else
+static inline int fdtv_fw_init(void) { return 0; }
+static inline void fdtv_fw_exit(void) {}
+#endif
+
/* firedtv-rc.c */
#ifdef CONFIG_DVB_FIREDTV_INPUT
int fdtv_register_rc(struct firedtv *fdtv, struct device *dev);