diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 675fdbd5967e35d83ebbdbf0cebb29426febd311..70a96e98152cac082b1459c41b7adbf701d85248 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -836,8 +836,8 @@ static struct usbatm_driver cxacru_driver = { .heavy_init = cxacru_heavy_init, .unbind = cxacru_unbind, .atm_start = cxacru_atm_start, - .in = CXACRU_EP_DATA, - .out = CXACRU_EP_DATA, + .bulk_in = CXACRU_EP_DATA, + .bulk_out = CXACRU_EP_DATA, .rx_padding = 3, .tx_padding = 11, }; diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c index 0e981672f149887531f7459bf9110cd9995d469e..8c1c560cf0516708e7f0c2d380f26362f5dcd44d 100644 --- a/drivers/usb/atm/speedtch.c +++ b/drivers/usb/atm/speedtch.c @@ -35,6 +35,8 @@ #include #include #include +#include +#include #include #include "usbatm.h" @@ -66,24 +68,33 @@ static const char speedtch_driver_name[] = "speedtch"; #define RESUBMIT_DELAY 1000 /* milliseconds */ -#define DEFAULT_ALTSETTING 1 +#define DEFAULT_BULK_ALTSETTING 1 +#define DEFAULT_ISOC_ALTSETTING 2 #define DEFAULT_DL_512_FIRST 0 +#define DEFAULT_ENABLE_ISOC 0 #define DEFAULT_SW_BUFFERING 0 -static int altsetting = DEFAULT_ALTSETTING; +static unsigned int altsetting = 0; /* zero means: use the default */ static int dl_512_first = DEFAULT_DL_512_FIRST; +static int enable_isoc = DEFAULT_ENABLE_ISOC; static int sw_buffering = DEFAULT_SW_BUFFERING; -module_param(altsetting, int, S_IRUGO | S_IWUSR); +module_param(altsetting, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(altsetting, - "Alternative setting for data interface (default: " - __MODULE_STRING(DEFAULT_ALTSETTING) ")"); + "Alternative setting for data interface (bulk_default: " + __MODULE_STRING(DEFAULT_BULK_ALTSETTING) "; isoc_default: " + __MODULE_STRING(DEFAULT_ISOC_ALTSETTING) ")"); module_param(dl_512_first, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(dl_512_first, "Read 512 bytes before sending firmware (default: " __MODULE_STRING(DEFAULT_DL_512_FIRST) ")"); +module_param(enable_isoc, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(enable_isoc, + "Use isochronous transfers if available (default: " + __MODULE_STRING(DEFAULT_ENABLE_ISOC) ")"); + module_param(sw_buffering, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(sw_buffering, "Enable software buffering (default: " @@ -91,7 +102,8 @@ MODULE_PARM_DESC(sw_buffering, #define INTERFACE_DATA 1 #define ENDPOINT_INT 0x81 -#define ENDPOINT_DATA 0x07 +#define ENDPOINT_BULK_DATA 0x07 +#define ENDPOINT_ISOC_DATA 0x07 #define ENDPOINT_FIRMWARE 0x05 #define hex2int(c) ( (c >= '0') && (c <= '9') ? (c - '0') : ((c & 0xf) + 9) ) @@ -687,11 +699,12 @@ static int speedtch_bind(struct usbatm_data *usbatm, const struct usb_device_id *id) { struct usb_device *usb_dev = interface_to_usbdev(intf); - struct usb_interface *cur_intf; + struct usb_interface *cur_intf, *data_intf; struct speedtch_instance_data *instance; int ifnum = intf->altsetting->desc.bInterfaceNumber; int num_interfaces = usb_dev->actconfig->desc.bNumInterfaces; int i, ret; + int use_isoc; usb_dbg(usbatm, "%s entered\n", __func__); @@ -702,6 +715,11 @@ static int speedtch_bind(struct usbatm_data *usbatm, return -ENODEV; } + if (!(data_intf = usb_ifnum_to_if(usb_dev, INTERFACE_DATA))) { + usb_err(usbatm, "%s: data interface not found!\n", __func__); + return -ENODEV; + } + /* claim all interfaces */ for (i=0; i < num_interfaces; i++) { @@ -728,8 +746,9 @@ static int speedtch_bind(struct usbatm_data *usbatm, instance->usbatm = usbatm; - /* altsetting may change at any moment, so take a snapshot */ + /* altsetting and enable_isoc may change at any moment, so take a snapshot */ instance->altsetting = altsetting; + use_isoc = enable_isoc; if (instance->altsetting) if ((ret = usb_set_interface(usb_dev, INTERFACE_DATA, instance->altsetting)) < 0) { @@ -737,14 +756,44 @@ static int speedtch_bind(struct usbatm_data *usbatm, instance->altsetting = 0; /* fall back to default */ } - if (!instance->altsetting) { - if ((ret = usb_set_interface(usb_dev, INTERFACE_DATA, DEFAULT_ALTSETTING)) < 0) { - usb_err(usbatm, "%s: setting interface to %2d failed (%d)!\n", __func__, DEFAULT_ALTSETTING, ret); - goto fail_free; + if (!instance->altsetting && use_isoc) + if ((ret = usb_set_interface(usb_dev, INTERFACE_DATA, DEFAULT_ISOC_ALTSETTING)) < 0) { + usb_dbg(usbatm, "%s: setting interface to %2d failed (%d)!\n", __func__, DEFAULT_ISOC_ALTSETTING, ret); + use_isoc = 0; /* fall back to bulk */ } - instance->altsetting = DEFAULT_ALTSETTING; + + if (use_isoc) { + const struct usb_host_interface *desc = data_intf->cur_altsetting; + const __u8 target_address = USB_DIR_IN | usbatm->driver->isoc_in; + int i; + + use_isoc = 0; /* fall back to bulk if endpoint not found */ + + for (i=0; idesc.bNumEndpoints; i++) { + const struct usb_endpoint_descriptor *endpoint_desc = &desc->endpoint[i].desc; + + if ((endpoint_desc->bEndpointAddress == target_address)) { + use_isoc = (endpoint_desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_ISOC; + break; + } + } + + if (!use_isoc) + usb_info(usbatm, "isochronous transfer not supported - using bulk\n"); } + if (!use_isoc && !instance->altsetting) + if ((ret = usb_set_interface(usb_dev, INTERFACE_DATA, DEFAULT_BULK_ALTSETTING)) < 0) { + usb_err(usbatm, "%s: setting interface to %2d failed (%d)!\n", __func__, DEFAULT_BULK_ALTSETTING, ret); + goto fail_free; + } + + if (!instance->altsetting) + instance->altsetting = use_isoc ? DEFAULT_ISOC_ALTSETTING : DEFAULT_BULK_ALTSETTING; + + usbatm->flags |= (use_isoc ? UDSL_USE_ISOC : 0); + INIT_WORK(&instance->status_checker, (void *)speedtch_check_status, instance); instance->status_checker.timer.function = speedtch_status_poll; @@ -771,7 +820,7 @@ static int speedtch_bind(struct usbatm_data *usbatm, 0x12, 0xc0, 0x07, 0x00, instance->scratch_buffer + OFFSET_7, SIZE_7, 500); - usbatm->flags = (ret == SIZE_7 ? UDSL_SKIP_HEAVY_INIT : 0); + usbatm->flags |= (ret == SIZE_7 ? UDSL_SKIP_HEAVY_INIT : 0); usb_dbg(usbatm, "%s: firmware %s loaded\n", __func__, usbatm->flags & UDSL_SKIP_HEAVY_INIT ? "already" : "not"); @@ -817,8 +866,9 @@ static struct usbatm_driver speedtch_usbatm_driver = { .unbind = speedtch_unbind, .atm_start = speedtch_atm_start, .atm_stop = speedtch_atm_stop, - .in = ENDPOINT_DATA, - .out = ENDPOINT_DATA + .bulk_in = ENDPOINT_BULK_DATA, + .bulk_out = ENDPOINT_BULK_DATA, + .isoc_in = ENDPOINT_ISOC_DATA }; static int speedtch_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c index aa072ad953a67593c937dcd804d0fce769192d67..956cd9e82dee52ddf2ea9296abc4a27552d39dc8 100644 --- a/drivers/usb/atm/ueagle-atm.c +++ b/drivers/usb/atm/ueagle-atm.c @@ -1705,8 +1705,8 @@ static struct usbatm_driver uea_usbatm_driver = { .atm_start = uea_atm_open, .unbind = uea_unbind, .heavy_init = uea_heavy, - .in = UEA_BULK_DATA_PIPE, - .out = UEA_BULK_DATA_PIPE, + .bulk_in = UEA_BULK_DATA_PIPE, + .bulk_out = UEA_BULK_DATA_PIPE, }; static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id) diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c index 1d829c29c86d5ea3fb1783696ff6328e45af77ef..923f2d9269bcfe22b5ae2e9c63fe63cb839b9760 100644 --- a/drivers/usb/atm/usbatm.c +++ b/drivers/usb/atm/usbatm.c @@ -1049,17 +1049,23 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id, init_completion(&instance->thread_exited); INIT_LIST_HEAD(&instance->vcc_list); + skb_queue_head_init(&instance->sndqueue); usbatm_init_channel(&instance->rx_channel); usbatm_init_channel(&instance->tx_channel); tasklet_init(&instance->rx_channel.tasklet, usbatm_rx_process, (unsigned long)instance); tasklet_init(&instance->tx_channel.tasklet, usbatm_tx_process, (unsigned long)instance); - instance->rx_channel.endpoint = usb_rcvbulkpipe(usb_dev, driver->in); - instance->tx_channel.endpoint = usb_sndbulkpipe(usb_dev, driver->out); instance->rx_channel.stride = ATM_CELL_SIZE + driver->rx_padding; instance->tx_channel.stride = ATM_CELL_SIZE + driver->tx_padding; instance->rx_channel.usbatm = instance->tx_channel.usbatm = instance; + if ((instance->flags & UDSL_USE_ISOC) && driver->isoc_in) + instance->rx_channel.endpoint = usb_rcvisocpipe(usb_dev, driver->isoc_in); + else + instance->rx_channel.endpoint = usb_rcvbulkpipe(usb_dev, driver->bulk_in); + + instance->tx_channel.endpoint = usb_sndbulkpipe(usb_dev, driver->bulk_out); + /* tx buffer size must be a positive multiple of the stride */ instance->tx_channel.buf_size = max (instance->tx_channel.stride, snd_buf_bytes - (snd_buf_bytes % instance->tx_channel.stride)); @@ -1080,6 +1086,7 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id, num_packets--; instance->rx_channel.buf_size = num_packets * maxpacket; + instance->rx_channel.packet_size = maxpacket; #ifdef DEBUG for (i = 0; i < 2; i++) { @@ -1090,22 +1097,16 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id, } #endif - skb_queue_head_init(&instance->sndqueue); + /* initialize urbs */ for (i = 0; i < num_rcv_urbs + num_snd_urbs; i++) { - struct urb *urb; u8 *buffer; - unsigned int iso_packets = 0, iso_size = 0; struct usbatm_channel *channel = i < num_rcv_urbs ? &instance->rx_channel : &instance->tx_channel; + struct urb *urb; + unsigned int iso_packets = usb_pipeisoc(channel->endpoint) ? channel->buf_size / channel->packet_size : 0; - if (usb_pipeisoc(channel->endpoint)) { - /* don't expect iso out endpoints */ - iso_size = usb_maxpacket(instance->usb_dev, channel->endpoint, 0); - iso_size -= iso_size % channel->stride; /* alignment */ - BUG_ON(!iso_size); - iso_packets = (channel->buf_size - 1) / iso_size + 1; - } + UDSL_ASSERT(!usb_pipeisoc(channel->endpoint) || usb_pipein(channel->endpoint)); urb = usb_alloc_urb(iso_packets, GFP_KERNEL); if (!urb) { @@ -1132,9 +1133,8 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id, urb->transfer_flags = URB_ISO_ASAP; urb->number_of_packets = iso_packets; for (j = 0; j < iso_packets; j++) { - urb->iso_frame_desc[j].offset = iso_size * j; - urb->iso_frame_desc[j].length = min_t(int, iso_size, - channel->buf_size - urb->iso_frame_desc[j].offset); + urb->iso_frame_desc[j].offset = channel->packet_size * j; + urb->iso_frame_desc[j].length = channel->packet_size; } } diff --git a/drivers/usb/atm/usbatm.h b/drivers/usb/atm/usbatm.h index 1a31cf87bb1fd6acac5e3581ea46001326bdd2a9..0e2caa0967c11c74bad942c31e781f6b0c24f4af 100644 --- a/drivers/usb/atm/usbatm.h +++ b/drivers/usb/atm/usbatm.h @@ -87,6 +87,7 @@ /* flags, set by mini-driver in bind() */ #define UDSL_SKIP_HEAVY_INIT (1<<0) +#define UDSL_USE_ISOC (1<<1) /* mini driver */ @@ -118,8 +119,9 @@ struct usbatm_driver { /* cleanup ATM device ... can sleep, but can't fail */ void (*atm_stop) (struct usbatm_data *, struct atm_dev *); - int in; /* rx endpoint */ - int out; /* tx endpoint */ + int bulk_in; /* bulk rx endpoint */ + int isoc_in; /* isochronous rx endpoint */ + int bulk_out; /* bulk tx endpoint */ unsigned rx_padding; unsigned tx_padding; @@ -134,6 +136,7 @@ struct usbatm_channel { int endpoint; /* usb pipe */ unsigned int stride; /* ATM cell size + padding */ unsigned int buf_size; /* urb buffer size */ + unsigned int packet_size; /* endpoint maxpacket */ spinlock_t lock; struct list_head list; struct tasklet_struct tasklet; diff --git a/drivers/usb/atm/xusbatm.c b/drivers/usb/atm/xusbatm.c index 83848ee2c6fe28ed1fb55fa67826399724e6602a..42d6823b82b3d4efac2658bba02302c48f9baff1 100644 --- a/drivers/usb/atm/xusbatm.c +++ b/drivers/usb/atm/xusbatm.c @@ -210,8 +210,8 @@ static int __init xusbatm_init(void) xusbatm_drivers[i].bind = xusbatm_bind; xusbatm_drivers[i].unbind = xusbatm_unbind; xusbatm_drivers[i].atm_start = xusbatm_atm_start; - xusbatm_drivers[i].in = rx_endpoint[i]; - xusbatm_drivers[i].out = tx_endpoint[i]; + xusbatm_drivers[i].bulk_in = rx_endpoint[i]; + xusbatm_drivers[i].bulk_out = tx_endpoint[i]; xusbatm_drivers[i].rx_padding = rx_padding[i]; xusbatm_drivers[i].tx_padding = tx_padding[i]; }