diff options
| -rw-r--r-- | drivers/media/dvb/firewire/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/media/dvb/firewire/Makefile | 1 | ||||
| -rw-r--r-- | drivers/media/dvb/firewire/firedtv-1394.c | 6 | ||||
| -rw-r--r-- | drivers/media/dvb/firewire/firedtv-dvb.c | 15 | ||||
| -rw-r--r-- | drivers/media/dvb/firewire/firedtv-fw.c | 385 | ||||
| -rw-r--r-- | drivers/media/dvb/firewire/firedtv.h | 15 |
6 files changed, 420 insertions, 9 deletions
diff --git a/drivers/media/dvb/firewire/Kconfig b/drivers/media/dvb/firewire/Kconfig index 69028253e98..4afa29256df 100644 --- a/drivers/media/dvb/firewire/Kconfig +++ b/drivers/media/dvb/firewire/Kconfig @@ -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) diff --git a/drivers/media/dvb/firewire/Makefile b/drivers/media/dvb/firewire/Makefile index 2034695ba19..da84203d51c 100644 --- a/drivers/media/dvb/firewire/Makefile +++ b/drivers/media/dvb/firewire/Makefile @@ -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 diff --git a/drivers/media/dvb/firewire/firedtv-1394.c b/drivers/media/dvb/firewire/firedtv-1394.c index 82b576a4774..ed98fdb650c 100644 --- a/drivers/media/dvb/firewire/firedtv-1394.c +++ b/drivers/media/dvb/firewire/firedtv-1394.c @@ -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_directory *ud) 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_highlevel = { .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"); diff --git a/drivers/media/dvb/firewire/firedtv-dvb.c b/drivers/media/dvb/firewire/firedtv-dvb.c index 5742fde79d9..fc9996c13e1 100644 --- a/drivers/media/dvb/firewire/firedtv-dvb.c +++ b/drivers/media/dvb/firewire/firedtv-dvb.c @@ -297,7 +297,7 @@ struct firedtv *fdtv_alloc(struct device *dev, #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_table); 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); diff --git a/drivers/media/dvb/firewire/firedtv-fw.c b/drivers/media/dvb/firewire/firedtv-fw.c new file mode 100644 index 00000000000..208e5b59e83 --- /dev/null +++ b/drivers/media/dvb/firewire/firedtv-fw.c @@ -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); +} diff --git a/drivers/media/dvb/firewire/firedtv.h b/drivers/media/dvb/firewire/firedtv.h index 1b99660a839..f7b5c030bed 100644 --- a/drivers/media/dvb/firewire/firedtv.h +++ b/drivers/media/dvb/firewire/firedtv.h @@ -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 *dev, 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); |