usb: gadget: dfu: discard dead code

[oweals/u-boot.git] / drivers / usb / gadget / f_dfu.c

diff --git a/drivers/usb/gadget/f_dfu.c b/drivers/usb/gadget/f_dfu.c
index 9863dec44d993770c2f69963ca7197efa9dfb78c..8e7c981657c3b6be4b5ddbad802f5e00b3abb419 100644 (file)
--- a/drivers/usb/gadget/f_dfu.c
+++ b/drivers/usb/gadget/f_dfu.c
@@ -44,6 +44,8 @@ struct f_dfu {
        unsigned int                    poll_timeout;
 };
 
+struct dfu_entity *dfu_defer_flush;
+
 typedef int (*dfu_state_fn) (struct f_dfu *,
                             const struct usb_ctrlrequest *,
                             struct usb_gadget *,
@@ -81,14 +83,6 @@ static struct usb_descriptor_header *dfu_runtime_descs[] = {
        NULL,
 };
 
-static const struct usb_qualifier_descriptor dev_qualifier = {
-       .bLength =              sizeof dev_qualifier,
-       .bDescriptorType =      USB_DT_DEVICE_QUALIFIER,
-       .bcdUSB =               __constant_cpu_to_le16(0x0200),
-       .bDeviceClass =         USB_CLASS_VENDOR_SPEC,
-       .bNumConfigurations =   1,
-};
-
 static const char dfu_name[] = "Device Firmware Upgrade";
 
 /*
@@ -175,14 +169,7 @@ static void dnload_request_complete(struct usb_ep *ep, struct usb_request *req)
 static void dnload_request_flush(struct usb_ep *ep, struct usb_request *req)
 {
        struct f_dfu *f_dfu = req->context;
-       int ret;
-
-       ret = dfu_flush(dfu_get_entity(f_dfu->altsetting), req->buf,
-                       req->length, f_dfu->blk_seq_num);
-       if (ret) {
-               f_dfu->dfu_status = DFU_STATUS_errUNKNOWN;
-               f_dfu->dfu_state = DFU_STATE_dfuERROR;
-       }
+       dfu_set_defer_flush(dfu_get_entity(f_dfu->altsetting));
 }
 
 static inline int dfu_get_manifest_timeout(struct dfu_entity *dfu)
@@ -237,6 +224,7 @@ static inline void to_dfu_mode(struct f_dfu *f_dfu)
 {
        f_dfu->usb_function.strings = dfu_strings;
        f_dfu->usb_function.hs_descriptors = f_dfu->function;
+       f_dfu->usb_function.descriptors = f_dfu->function;
        f_dfu->dfu_state = DFU_STATE_dfuIDLE;
 }
 
@@ -244,6 +232,7 @@ static inline void to_runtime_mode(struct f_dfu *f_dfu)
 {
        f_dfu->usb_function.strings = NULL;
        f_dfu->usb_function.hs_descriptors = dfu_runtime_descs;
+       f_dfu->usb_function.descriptors = dfu_runtime_descs;
 }
 
 static int handle_upload(struct usb_request *req, u16 len)
@@ -372,7 +361,7 @@ static int state_dfu_idle(struct f_dfu *f_dfu,
                to_runtime_mode(f_dfu);
                f_dfu->dfu_state = DFU_STATE_appIDLE;
 
-               dfu_trigger_reset();
+               g_dnl_trigger_detach();
                break;
        default:
                f_dfu->dfu_state = DFU_STATE_dfuERROR;
@@ -647,7 +636,7 @@ dfu_prepare_strings(struct f_dfu *f_dfu, int n)
 
        f_dfu->strings = calloc(sizeof(struct usb_string), n + 1);
        if (!f_dfu->strings)
-               goto enomem;
+               return -ENOMEM;
 
        for (i = 0; i < n; ++i) {
                de = dfu_get_entity(i);
@@ -658,14 +647,6 @@ dfu_prepare_strings(struct f_dfu *f_dfu, int n)
        f_dfu->strings[i].s = NULL;
 
        return 0;
-
-enomem:
-       while (i)
-               f_dfu->strings[--i].s = NULL;
-
-       free(f_dfu->strings);
-
-       return -ENOMEM;
 }
 
 static int dfu_prepare_function(struct f_dfu *f_dfu, int n)
@@ -786,6 +767,13 @@ static int dfu_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
        return 0;
 }
 
+static int __dfu_get_alt(struct usb_function *f, unsigned intf)
+{
+       struct f_dfu *f_dfu = func_to_dfu(f);
+
+       return f_dfu->altsetting;
+}
+
 /* TODO: is this really what we need here? */
 static void dfu_disable(struct usb_function *f)
 {
@@ -808,9 +796,11 @@ static int dfu_bind_config(struct usb_configuration *c)
                return -ENOMEM;
        f_dfu->usb_function.name = "dfu";
        f_dfu->usb_function.hs_descriptors = dfu_runtime_descs;
+       f_dfu->usb_function.descriptors = dfu_runtime_descs;
        f_dfu->usb_function.bind = dfu_bind;
        f_dfu->usb_function.unbind = dfu_unbind;
        f_dfu->usb_function.set_alt = dfu_set_alt;
+       f_dfu->usb_function.get_alt = __dfu_get_alt;
        f_dfu->usb_function.disable = dfu_disable;
        f_dfu->usb_function.strings = dfu_generic_strings;
        f_dfu->usb_function.setup = dfu_handle;