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path: root/drivers/media/dvb/firewire/firedtv-fw.c
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Diffstat (limited to 'drivers/media/dvb/firewire/firedtv-fw.c')
-rw-r--r--drivers/media/dvb/firewire/firedtv-fw.c429
1 files changed, 0 insertions, 429 deletions
diff --git a/drivers/media/dvb/firewire/firedtv-fw.c b/drivers/media/dvb/firewire/firedtv-fw.c
deleted file mode 100644
index e24ec539a5fd..000000000000
--- a/drivers/media/dvb/firewire/firedtv-fw.c
+++ /dev/null
@@ -1,429 +0,0 @@
-/*
- * 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/kernel.h>
-#include <linux/list.h>
-#include <linux/mm.h>
-#include <linux/mod_devicetable.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/wait.h>
-#include <linux/workqueue.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;
-}
-
-int fdtv_lock(struct firedtv *fdtv, u64 addr, void *data)
-{
- return node_req(fdtv, addr, data, 8, TCODE_LOCK_COMPARE_SWAP);
-}
-
-int fdtv_read(struct firedtv *fdtv, u64 addr, void *data)
-{
- return node_req(fdtv, addr, data, 4, TCODE_READ_QUADLET_REQUEST);
-}
-
-int fdtv_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 fdtv_ir_context {
- struct fw_iso_context *context;
- struct fw_iso_buffer buffer;
- int interrupt_packet;
- int current_packet;
- char *pages[N_PAGES];
-};
-
-static int queue_iso(struct fdtv_ir_context *ctx, int index)
-{
- struct fw_iso_packet p;
-
- p.payload_length = MAX_PACKET_SIZE;
- p.interrupt = !(++ctx->interrupt_packet & (IRQ_INTERVAL - 1));
- p.skip = 0;
- p.header_length = ISO_HEADER_SIZE;
-
- return fw_iso_context_queue(ctx->context, &p, &ctx->buffer,
- index * MAX_PACKET_SIZE);
-}
-
-static void handle_iso(struct fw_iso_context *context, u32 cycle,
- size_t header_length, void *header, void *data)
-{
- struct firedtv *fdtv = data;
- struct fdtv_ir_context *ctx = fdtv->ir_context;
- __be32 *h, *h_end;
- int length, err, i = ctx->current_packet;
- 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->pages[i / PACKETS_PER_PAGE]
- + (i % PACKETS_PER_PAGE) * MAX_PACKET_SIZE;
- 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);
- }
- fw_iso_context_queue_flush(ctx->context);
- ctx->current_packet = i;
-}
-
-int fdtv_start_iso(struct firedtv *fdtv)
-{
- struct fdtv_ir_context *ctx;
- struct fw_device *device = device_of(fdtv);
- int i, 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 = 0;
- ctx->current_packet = 0;
-
- for (i = 0; i < N_PAGES; i++)
- ctx->pages[i] = page_address(ctx->buffer.pages[i]);
-
- 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->ir_context = 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;
-}
-
-void fdtv_stop_iso(struct firedtv *fdtv)
-{
- struct fdtv_ir_context *ctx = fdtv->ir_context;
-
- 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 void handle_fcp(struct fw_card *card, struct fw_request *request,
- int tcode, int destination, int source, int generation,
- 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 (length < 2 || (((u8 *)payload)[0] & 0xf0) != 0)
- 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);
-}
-
-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,
-};
-
-static const char * const model_names[] = {
- [FIREDTV_UNKNOWN] = "unknown type",
- [FIREDTV_DVB_S] = "FireDTV S/CI",
- [FIREDTV_DVB_C] = "FireDTV C/CI",
- [FIREDTV_DVB_T] = "FireDTV T/CI",
- [FIREDTV_DVB_S2] = "FireDTV S2 ",
-};
-
-/* Adjust the template string if models with longer names appear. */
-#define MAX_MODEL_NAME_LEN sizeof("FireDTV ????")
-
-static int node_probe(struct device *dev)
-{
- struct firedtv *fdtv;
- char name[MAX_MODEL_NAME_LEN];
- int name_len, i, err;
-
- fdtv = kzalloc(sizeof(*fdtv), GFP_KERNEL);
- if (!fdtv)
- return -ENOMEM;
-
- dev_set_drvdata(dev, fdtv);
- fdtv->device = dev;
- fdtv->isochannel = -1;
- fdtv->voltage = 0xff;
- fdtv->tone = 0xff;
-
- mutex_init(&fdtv->avc_mutex);
- init_waitqueue_head(&fdtv->avc_wait);
- mutex_init(&fdtv->demux_mutex);
- INIT_WORK(&fdtv->remote_ctrl_work, avc_remote_ctrl_work);
-
- name_len = fw_csr_string(fw_unit(dev)->directory, CSR_MODEL,
- name, sizeof(name));
- for (i = ARRAY_SIZE(model_names); --i; )
- if (strlen(model_names[i]) <= name_len &&
- strncmp(name, model_names[i], name_len) == 0)
- break;
- fdtv->type = i;
-
- 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, model_names[fdtv->type]);
- 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);
-}
-
-#define MATCH_FLAGS (IEEE1394_MATCH_VENDOR_ID | IEEE1394_MATCH_MODEL_ID | \
- IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION)
-
-#define DIGITAL_EVERYWHERE_OUI 0x001287
-#define AVC_UNIT_SPEC_ID_ENTRY 0x00a02d
-#define AVC_SW_VERSION_ENTRY 0x010001
-
-static const struct ieee1394_device_id fdtv_id_table[] = {
- {
- /* FloppyDTV S/CI and FloppyDTV S2 */
- .match_flags = MATCH_FLAGS,
- .vendor_id = DIGITAL_EVERYWHERE_OUI,
- .model_id = 0x000024,
- .specifier_id = AVC_UNIT_SPEC_ID_ENTRY,
- .version = AVC_SW_VERSION_ENTRY,
- }, {
- /* FloppyDTV T/CI */
- .match_flags = MATCH_FLAGS,
- .vendor_id = DIGITAL_EVERYWHERE_OUI,
- .model_id = 0x000025,
- .specifier_id = AVC_UNIT_SPEC_ID_ENTRY,
- .version = AVC_SW_VERSION_ENTRY,
- }, {
- /* FloppyDTV C/CI */
- .match_flags = MATCH_FLAGS,
- .vendor_id = DIGITAL_EVERYWHERE_OUI,
- .model_id = 0x000026,
- .specifier_id = AVC_UNIT_SPEC_ID_ENTRY,
- .version = AVC_SW_VERSION_ENTRY,
- }, {
- /* FireDTV S/CI and FloppyDTV S2 */
- .match_flags = MATCH_FLAGS,
- .vendor_id = DIGITAL_EVERYWHERE_OUI,
- .model_id = 0x000034,
- .specifier_id = AVC_UNIT_SPEC_ID_ENTRY,
- .version = AVC_SW_VERSION_ENTRY,
- }, {
- /* FireDTV T/CI */
- .match_flags = MATCH_FLAGS,
- .vendor_id = DIGITAL_EVERYWHERE_OUI,
- .model_id = 0x000035,
- .specifier_id = AVC_UNIT_SPEC_ID_ENTRY,
- .version = AVC_SW_VERSION_ENTRY,
- }, {
- /* FireDTV C/CI */
- .match_flags = MATCH_FLAGS,
- .vendor_id = DIGITAL_EVERYWHERE_OUI,
- .model_id = 0x000036,
- .specifier_id = AVC_UNIT_SPEC_ID_ENTRY,
- .version = AVC_SW_VERSION_ENTRY,
- }, {}
-};
-MODULE_DEVICE_TABLE(ieee1394, fdtv_id_table);
-
-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,
-};
-
-static int __init fdtv_init(void)
-{
- int ret;
-
- ret = fw_core_add_address_handler(&fcp_handler, &fcp_region);
- if (ret < 0)
- return ret;
-
- ret = driver_register(&fdtv_driver.driver);
- if (ret < 0)
- fw_core_remove_address_handler(&fcp_handler);
-
- return ret;
-}
-
-static void __exit fdtv_exit(void)
-{
- driver_unregister(&fdtv_driver.driver);
- fw_core_remove_address_handler(&fcp_handler);
-}
-
-module_init(fdtv_init);
-module_exit(fdtv_exit);
-
-MODULE_AUTHOR("Andreas Monitzer <andy@monitzer.com>");
-MODULE_AUTHOR("Ben Backx <ben@bbackx.com>");
-MODULE_DESCRIPTION("FireDTV DVB Driver");
-MODULE_LICENSE("GPL");
-MODULE_SUPPORTED_DEVICE("FireDTV DVB");
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-23 22:08:03 +0000