static void usb_log_enable(struct es1_ap_dev *es1)
{
if (!IS_ERR_OR_NULL(apb1_log_task))
return;
/* get log from APB1 */
apb1_log_task = kthread_run(apb1_log_poll, es1, "apb1_log");
if (IS_ERR(apb1_log_task))
return;
apb1_log_dentry = debugfs_create_file("apb1_log", S_IRUGO,
gb_debugfs_get(), NULL,
&apb1_log_fops);
}
static void usb_log_enable(struct es2_ap_dev *es2)
{
if (!IS_ERR_OR_NULL(es2->apb_log_task))
return;
/* get log from APB1 */
es2->apb_log_task = kthread_run(apb_log_poll, es2, "apb_log");
if (IS_ERR(es2->apb_log_task))
return;
/* XXX We will need to rename this per APB */
es2->apb_log_dentry = debugfs_create_file("apb_log", S_IRUGO,
gb_debugfs_get(), es2,
&apb_log_fops);
}
/*
* The ES2 USB Bridge device has 15 endpoints
* 1 Control - usual USB stuff + AP -> APBridgeA messages
* 7 Bulk IN - CPort data in
* 7 Bulk OUT - CPort data out
*/
static int ap_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
struct es2_ap_dev *es2;
struct gb_host_device *hd;
struct usb_device *udev;
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
int bulk_in = 0;
int bulk_out = 0;
int retval = -ENOMEM;
int i;
int num_cports;
int cport_id;
udev = usb_get_dev(interface_to_usbdev(interface));
num_cports = apb_get_cport_count(udev);
if (num_cports < 0) {
usb_put_dev(udev);
dev_err(&udev->dev, "Cannot retrieve CPort count: %d\n",
num_cports);
return num_cports;
}
hd = gb_hd_create(&es2_driver, &udev->dev, ES2_GBUF_MSG_SIZE_MAX,
num_cports);
if (IS_ERR(hd)) {
usb_put_dev(udev);
return PTR_ERR(hd);
}
/*
* CPorts 16 and 17 are reserved for CDSI0 and CDSI1, make sure they
* won't be allocated dynamically.
*/
do {
cport_id = ida_simple_get(&hd->cport_id_map, 16, 18, GFP_KERNEL);
} while (cport_id > 0);
es2 = hd_to_es2(hd);
es2->hd = hd;
es2->usb_intf = interface;
es2->usb_dev = udev;
spin_lock_init(&es2->cport_out_urb_lock);
INIT_KFIFO(es2->apb_log_fifo);
usb_set_intfdata(interface, es2);
es2->cport_to_ep = kcalloc(hd->num_cports, sizeof(*es2->cport_to_ep),
GFP_KERNEL);
if (!es2->cport_to_ep) {
retval = -ENOMEM;
goto error;
}
/* find all bulk endpoints */
iface_desc = interface->cur_altsetting;
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
endpoint = &iface_desc->endpoint[i].desc;
if (usb_endpoint_is_bulk_in(endpoint)) {
es2->cport_in[bulk_in++].endpoint =
endpoint->bEndpointAddress;
} else if (usb_endpoint_is_bulk_out(endpoint)) {
es2->cport_out[bulk_out++].endpoint =
endpoint->bEndpointAddress;
} else {
dev_err(&udev->dev,
"Unknown endpoint type found, address 0x%02x\n",
endpoint->bEndpointAddress);
}
}
if (bulk_in != NUM_BULKS || bulk_out != NUM_BULKS) {
dev_err(&udev->dev, "Not enough endpoints found in device, aborting!\n");
goto error;
}
/* Allocate buffers for our cport in messages */
for (bulk_in = 0; bulk_in < NUM_BULKS; bulk_in++) {
struct es2_cport_in *cport_in = &es2->cport_in[bulk_in];
for (i = 0; i < NUM_CPORT_IN_URB; ++i) {
struct urb *urb;
u8 *buffer;
urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb)
goto error;
buffer = kmalloc(ES2_GBUF_MSG_SIZE_MAX, GFP_KERNEL);
if (!buffer)
goto error;
usb_fill_bulk_urb(urb, udev,
usb_rcvbulkpipe(udev,
cport_in->endpoint),
buffer, ES2_GBUF_MSG_SIZE_MAX,
cport_in_callback, hd);
cport_in->urb[i] = urb;
cport_in->buffer[i] = buffer;
}
}
/* Allocate urbs for our CPort OUT messages */
for (i = 0; i < NUM_CPORT_OUT_URB; ++i) {
struct urb *urb;
urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb)
goto error;
es2->cport_out_urb[i] = urb;
es2->cport_out_urb_busy[i] = false; /* just to be anal */
}
/* XXX We will need to rename this per APB */
es2->apb_log_enable_dentry = debugfs_create_file("apb_log_enable",
(S_IWUSR | S_IRUGO),
gb_debugfs_get(), es2,
&apb_log_enable_fops);
retval = gb_hd_add(hd);
if (retval)
goto error;
for (i = 0; i < NUM_BULKS; ++i) {
retval = es2_cport_in_enable(es2, &es2->cport_in[i]);
if (retval)
goto err_disable_cport_in;
}
return 0;
err_disable_cport_in:
for (--i; i >= 0; --i)
es2_cport_in_disable(es2, &es2->cport_in[i]);
gb_hd_del(hd);
error:
es2_destroy(es2);
return retval;
}
/*
* The ES1 USB Bridge device contains 4 endpoints
* 1 Control - usual USB stuff + AP -> SVC messages
* 1 Interrupt IN - SVC -> AP messages
* 1 Bulk IN - CPort data in
* 1 Bulk OUT - CPort data out
*/
static int ap_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
struct es1_ap_dev *es1;
struct greybus_host_device *hd;
struct usb_device *udev;
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
int bulk_in = 0;
int bulk_out = 0;
int retval = -ENOMEM;
int i;
int num_cports;
udev = usb_get_dev(interface_to_usbdev(interface));
num_cports = apb1_get_cport_count(udev);
if (num_cports < 0) {
usb_put_dev(udev);
dev_err(&udev->dev, "Cannot retrieve CPort count: %d\n",
num_cports);
return num_cports;
}
hd = greybus_create_hd(&es1_driver, &udev->dev, ES1_GBUF_MSG_SIZE_MAX,
num_cports);
if (IS_ERR(hd)) {
usb_put_dev(udev);
return PTR_ERR(hd);
}
es1 = hd_to_es1(hd);
es1->hd = hd;
es1->usb_intf = interface;
es1->usb_dev = udev;
spin_lock_init(&es1->cport_out_urb_lock);
usb_set_intfdata(interface, es1);
es1->cport_to_ep = kcalloc(hd->num_cports, sizeof(*es1->cport_to_ep),
GFP_KERNEL);
if (!es1->cport_to_ep) {
retval = -ENOMEM;
goto error;
}
/* find all 3 of our endpoints */
iface_desc = interface->cur_altsetting;
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
endpoint = &iface_desc->endpoint[i].desc;
if (usb_endpoint_is_bulk_in(endpoint)) {
es1->cport_in[bulk_in++].endpoint =
endpoint->bEndpointAddress;
} else if (usb_endpoint_is_bulk_out(endpoint)) {
es1->cport_out[bulk_out++].endpoint =
endpoint->bEndpointAddress;
} else {
dev_err(&udev->dev,
"Unknown endpoint type found, address %x\n",
endpoint->bEndpointAddress);
}
}
if ((bulk_in == 0) ||
(bulk_out == 0)) {
dev_err(&udev->dev, "Not enough endpoints found in device, aborting!\n");
goto error;
}
/* Allocate buffers for our cport in messages and start them up */
for (bulk_in = 0; bulk_in < NUM_BULKS; bulk_in++) {
struct es1_cport_in *cport_in = &es1->cport_in[bulk_in];
for (i = 0; i < NUM_CPORT_IN_URB; ++i) {
struct urb *urb;
u8 *buffer;
urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb)
goto error;
buffer = kmalloc(ES1_GBUF_MSG_SIZE_MAX, GFP_KERNEL);
if (!buffer)
goto error;
usb_fill_bulk_urb(urb, udev,
usb_rcvbulkpipe(udev,
cport_in->endpoint),
buffer, ES1_GBUF_MSG_SIZE_MAX,
cport_in_callback, hd);
cport_in->urb[i] = urb;
cport_in->buffer[i] = buffer;
retval = usb_submit_urb(urb, GFP_KERNEL);
if (retval)
goto error;
}
}
/* Allocate urbs for our CPort OUT messages */
for (i = 0; i < NUM_CPORT_OUT_URB; ++i) {
struct urb *urb;
urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb)
goto error;
es1->cport_out_urb[i] = urb;
es1->cport_out_urb_busy[i] = false; /* just to be anal */
}
apb1_log_enable_dentry = debugfs_create_file("apb1_log_enable",
(S_IWUSR | S_IRUGO),
gb_debugfs_get(), es1,
&apb1_log_enable_fops);
return 0;
error:
ap_disconnect(interface);
return retval;
}