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path: root/drivers/usb/renesas_usbhs/mod_gadget.c
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Diffstat (limited to 'drivers/usb/renesas_usbhs/mod_gadget.c')
-rw-r--r--drivers/usb/renesas_usbhs/mod_gadget.c238
1 files changed, 176 insertions, 62 deletions
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index d9717e0bc1ff..528691d5f3e2 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -14,6 +14,7 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
+#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/module.h>
@@ -44,7 +45,6 @@ struct usbhsg_uep {
struct usbhsg_gpriv {
struct usb_gadget gadget;
struct usbhs_mod mod;
- struct list_head link;
struct usbhsg_uep *uep;
int uep_size;
@@ -114,16 +114,6 @@ struct usbhsg_recip_handle {
#define usbhsg_status_clr(gp, b) (gp->status &= ~b)
#define usbhsg_status_has(gp, b) (gp->status & b)
-/* controller */
-LIST_HEAD(the_controller_link);
-
-#define usbhsg_for_each_controller(gpriv)\
- list_for_each_entry(gpriv, &the_controller_link, link)
-#define usbhsg_controller_register(gpriv)\
- list_add_tail(&(gpriv)->link, &the_controller_link)
-#define usbhsg_controller_unregister(gpriv)\
- list_del_init(&(gpriv)->link)
-
/*
* queue push/pop
*/
@@ -164,7 +154,7 @@ static void usbhsg_queue_push(struct usbhsg_uep *uep,
req->actual = 0;
req->status = -EINPROGRESS;
usbhs_pkt_push(pipe, pkt, usbhsg_queue_done,
- req->buf, req->length, req->zero);
+ req->buf, req->length, req->zero, -1);
usbhs_pkt_start(pipe);
dev_dbg(dev, "pipe %d : queue push (%d)\n",
@@ -195,7 +185,7 @@ static int usbhsg_dma_map(struct device *dev,
}
if (dma_mapping_error(dev, pkt->dma)) {
- dev_err(dev, "dma mapping error %x\n", pkt->dma);
+ dev_err(dev, "dma mapping error %llx\n", (u64)pkt->dma);
return -EIO;
}
@@ -271,6 +261,8 @@ static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv,
usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
+ usbhs_pkt_start(pipe);
+
return 0;
}
@@ -282,6 +274,145 @@ struct usbhsg_recip_handle req_clear_feature = {
};
/*
+ * USB_TYPE_STANDARD / set feature functions
+ */
+static int usbhsg_recip_handler_std_set_device(struct usbhs_priv *priv,
+ struct usbhsg_uep *uep,
+ struct usb_ctrlrequest *ctrl)
+{
+ switch (le16_to_cpu(ctrl->wValue)) {
+ case USB_DEVICE_TEST_MODE:
+ usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
+ udelay(100);
+ usbhs_sys_set_test_mode(priv, le16_to_cpu(ctrl->wIndex >> 8));
+ break;
+ default:
+ usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
+ break;
+ }
+
+ return 0;
+}
+
+static int usbhsg_recip_handler_std_set_endpoint(struct usbhs_priv *priv,
+ struct usbhsg_uep *uep,
+ struct usb_ctrlrequest *ctrl)
+{
+ struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+
+ usbhs_pipe_stall(pipe);
+
+ usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
+
+ return 0;
+}
+
+struct usbhsg_recip_handle req_set_feature = {
+ .name = "set feature",
+ .device = usbhsg_recip_handler_std_set_device,
+ .interface = usbhsg_recip_handler_std_control_done,
+ .endpoint = usbhsg_recip_handler_std_set_endpoint,
+};
+
+/*
+ * USB_TYPE_STANDARD / get status functions
+ */
+static void __usbhsg_recip_send_complete(struct usb_ep *ep,
+ struct usb_request *req)
+{
+ struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
+
+ /* free allocated recip-buffer/usb_request */
+ kfree(ureq->pkt.buf);
+ usb_ep_free_request(ep, req);
+}
+
+static void __usbhsg_recip_send_status(struct usbhsg_gpriv *gpriv,
+ unsigned short status)
+{
+ struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
+ struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp);
+ struct device *dev = usbhsg_gpriv_to_dev(gpriv);
+ struct usb_request *req;
+ unsigned short *buf;
+
+ /* alloc new usb_request for recip */
+ req = usb_ep_alloc_request(&dcp->ep, GFP_ATOMIC);
+ if (!req) {
+ dev_err(dev, "recip request allocation fail\n");
+ return;
+ }
+
+ /* alloc recip data buffer */
+ buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
+ if (!buf) {
+ usb_ep_free_request(&dcp->ep, req);
+ dev_err(dev, "recip data allocation fail\n");
+ return;
+ }
+
+ /* recip data is status */
+ *buf = cpu_to_le16(status);
+
+ /* allocated usb_request/buffer will be freed */
+ req->complete = __usbhsg_recip_send_complete;
+ req->buf = buf;
+ req->length = sizeof(*buf);
+ req->zero = 0;
+
+ /* push packet */
+ pipe->handler = &usbhs_fifo_pio_push_handler;
+ usbhsg_queue_push(dcp, usbhsg_req_to_ureq(req));
+}
+
+static int usbhsg_recip_handler_std_get_device(struct usbhs_priv *priv,
+ struct usbhsg_uep *uep,
+ struct usb_ctrlrequest *ctrl)
+{
+ struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+ unsigned short status = 1 << USB_DEVICE_SELF_POWERED;
+
+ __usbhsg_recip_send_status(gpriv, status);
+
+ return 0;
+}
+
+static int usbhsg_recip_handler_std_get_interface(struct usbhs_priv *priv,
+ struct usbhsg_uep *uep,
+ struct usb_ctrlrequest *ctrl)
+{
+ struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+ unsigned short status = 0;
+
+ __usbhsg_recip_send_status(gpriv, status);
+
+ return 0;
+}
+
+static int usbhsg_recip_handler_std_get_endpoint(struct usbhs_priv *priv,
+ struct usbhsg_uep *uep,
+ struct usb_ctrlrequest *ctrl)
+{
+ struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+ struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+ unsigned short status = 0;
+
+ if (usbhs_pipe_is_stall(pipe))
+ status = 1 << USB_ENDPOINT_HALT;
+
+ __usbhsg_recip_send_status(gpriv, status);
+
+ return 0;
+}
+
+struct usbhsg_recip_handle req_get_status = {
+ .name = "get status",
+ .device = usbhsg_recip_handler_std_get_device,
+ .interface = usbhsg_recip_handler_std_get_interface,
+ .endpoint = usbhsg_recip_handler_std_get_endpoint,
+};
+
+/*
* USB_TYPE handler
*/
static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
@@ -303,8 +434,7 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
pipe = usbhsg_uep_to_pipe(uep);
if (!pipe) {
dev_err(dev, "wrong recip request\n");
- ret = -EINVAL;
- goto usbhsg_recip_run_handle_end;
+ return -EINVAL;
}
switch (recip) {
@@ -327,20 +457,10 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
}
if (func) {
- unsigned long flags;
-
dev_dbg(dev, "%s (pipe %d :%s)\n", handler->name, nth, msg);
-
- /******************** spin lock ********************/
- usbhs_lock(priv, flags);
ret = func(priv, uep, ctrl);
- usbhs_unlock(priv, flags);
- /******************** spin unlock ******************/
}
-usbhsg_recip_run_handle_end:
- usbhs_pkt_start(pipe);
-
return ret;
}
@@ -412,6 +532,12 @@ static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv,
case USB_REQ_CLEAR_FEATURE:
recip_handler = &req_clear_feature;
break;
+ case USB_REQ_SET_FEATURE:
+ recip_handler = &req_set_feature;
+ break;
+ case USB_REQ_GET_STATUS:
+ recip_handler = &req_get_status;
+ break;
}
}
@@ -439,14 +565,16 @@ static int usbhsg_pipe_disable(struct usbhsg_uep *uep)
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
struct usbhs_pkt *pkt;
- usbhs_pipe_disable(pipe);
-
while (1) {
pkt = usbhs_pkt_pop(pipe, NULL);
if (!pkt)
break;
+
+ usbhsg_queue_pop(uep, usbhsg_pkt_to_ureq(pkt), -ECONNRESET);
}
+ usbhs_pipe_disable(pipe);
+
return 0;
}
@@ -681,9 +809,7 @@ static int usbhsg_try_start(struct usbhs_priv *priv, u32 status)
* - function
* - usb module
*/
- usbhs_sys_hispeed_ctrl(priv, 1);
usbhs_sys_function_ctrl(priv, 1);
- usbhs_sys_usb_ctrl(priv, 1);
/*
* enable irq callback
@@ -731,9 +857,8 @@ static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status)
gpriv->gadget.speed = USB_SPEED_UNKNOWN;
/* disable sys */
- usbhs_sys_hispeed_ctrl(priv, 0);
+ usbhs_sys_set_test_mode(priv, 0);
usbhs_sys_function_ctrl(priv, 0);
- usbhs_sys_usb_ctrl(priv, 0);
usbhsg_pipe_disable(dcp);
@@ -751,53 +876,32 @@ static int usbhsg_gadget_start(struct usb_gadget *gadget,
struct usb_gadget_driver *driver)
{
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
- struct usbhs_priv *priv;
- struct device *dev;
- int ret;
+ struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
if (!driver ||
!driver->setup ||
- driver->speed != USB_SPEED_HIGH)
+ driver->max_speed < USB_SPEED_FULL)
return -EINVAL;
- dev = usbhsg_gpriv_to_dev(gpriv);
- priv = usbhsg_gpriv_to_priv(gpriv);
-
/* first hook up the driver ... */
gpriv->driver = driver;
gpriv->gadget.dev.driver = &driver->driver;
- ret = device_add(&gpriv->gadget.dev);
- if (ret) {
- dev_err(dev, "device_add error %d\n", ret);
- goto add_fail;
- }
-
return usbhsg_try_start(priv, USBHSG_STATUS_REGISTERD);
-
-add_fail:
- gpriv->driver = NULL;
- gpriv->gadget.dev.driver = NULL;
-
- return ret;
}
static int usbhsg_gadget_stop(struct usb_gadget *gadget,
struct usb_gadget_driver *driver)
{
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
- struct usbhs_priv *priv;
- struct device *dev;
+ struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
if (!driver ||
!driver->unbind)
return -EINVAL;
- dev = usbhsg_gpriv_to_dev(gpriv);
- priv = usbhsg_gpriv_to_priv(gpriv);
-
usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD);
- device_del(&gpriv->gadget.dev);
+ gpriv->gadget.dev.driver = NULL;
gpriv->driver = NULL;
return 0;
@@ -827,6 +931,13 @@ static int usbhsg_start(struct usbhs_priv *priv)
static int usbhsg_stop(struct usbhs_priv *priv)
{
+ struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+
+ /* cable disconnect */
+ if (gpriv->driver &&
+ gpriv->driver->disconnect)
+ gpriv->driver->disconnect(&gpriv->gadget);
+
return usbhsg_try_stop(priv, USBHSG_STATUS_STARTED);
}
@@ -876,12 +987,14 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
/*
* init gadget
*/
- device_initialize(&gpriv->gadget.dev);
dev_set_name(&gpriv->gadget.dev, "gadget");
gpriv->gadget.dev.parent = dev;
gpriv->gadget.name = "renesas_usbhs_udc";
gpriv->gadget.ops = &usbhsg_gadget_ops;
- gpriv->gadget.is_dualspeed = 1;
+ gpriv->gadget.max_speed = USB_SPEED_HIGH;
+ ret = device_register(&gpriv->gadget.dev);
+ if (ret < 0)
+ goto err_add_udc;
INIT_LIST_HEAD(&gpriv->gadget.ep_list);
@@ -908,16 +1021,17 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
}
}
- usbhsg_controller_register(gpriv);
-
ret = usb_add_gadget_udc(dev, &gpriv->gadget);
if (ret)
- goto err_add_udc;
+ goto err_register;
dev_info(dev, "gadget probed\n");
return 0;
+
+err_register:
+ device_unregister(&gpriv->gadget.dev);
err_add_udc:
kfree(gpriv->uep);
@@ -933,7 +1047,7 @@ void usbhs_mod_gadget_remove(struct usbhs_priv *priv)
usb_del_gadget_udc(&gpriv->gadget);
- usbhsg_controller_unregister(gpriv);
+ device_unregister(&gpriv->gadget.dev);
kfree(gpriv->uep);
kfree(gpriv);