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path: root/drivers/usb/musb/musb_gadget.c
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Diffstat (limited to 'drivers/usb/musb/musb_gadget.c')
-rw-r--r--drivers/usb/musb/musb_gadget.c87
1 files changed, 66 insertions, 21 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 625d482f1a97..67ad630c86c9 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -313,8 +313,7 @@ static void txstate(struct musb *musb, struct musb_request *req)
/* MUSB_TXCSR_P_ISO is still set correctly */
-#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA)
- {
+ if (musb_dma_inventra(musb) || musb_dma_ux500(musb)) {
if (request_size < musb_ep->packet_sz)
musb_ep->dma->desired_mode = 0;
else
@@ -365,7 +364,6 @@ static void txstate(struct musb *musb, struct musb_request *req)
}
}
-#endif
if (is_cppi_enabled(musb)) {
/* program endpoint CSR first, then setup DMA */
csr &= ~(MUSB_TXCSR_P_UNDERRUN | MUSB_TXCSR_TXPKTRDY);
@@ -641,8 +639,10 @@ static void rxstate(struct musb *musb, struct musb_request *req)
use_mode_1 = 0;
if (request->actual < request->length) {
-#ifdef CONFIG_USB_INVENTRA_DMA
- if (is_buffer_mapped(req)) {
+ if (!is_buffer_mapped(req))
+ goto buffer_aint_mapped;
+
+ if (musb_dma_inventra(musb)) {
struct dma_controller *c;
struct dma_channel *channel;
int use_dma = 0;
@@ -716,8 +716,8 @@ static void rxstate(struct musb *musb, struct musb_request *req)
if (use_dma)
return;
}
-#elif defined(CONFIG_USB_UX500_DMA)
- if ((is_buffer_mapped(req)) &&
+
+ if ((musb_dma_ux500(musb)) &&
(request->actual < request->length)) {
struct dma_controller *c;
@@ -765,7 +765,6 @@ static void rxstate(struct musb *musb, struct musb_request *req)
return;
}
-#endif /* Mentor's DMA */
len = request->length - request->actual;
dev_dbg(musb->controller, "%s OUT/RX pio fifo %d/%d, maxpacket %d\n",
@@ -775,8 +774,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
fifo_count = min_t(unsigned, len, fifo_count);
-#ifdef CONFIG_USB_TUSB_OMAP_DMA
- if (tusb_dma_omap(musb) && is_buffer_mapped(req)) {
+ if (tusb_dma_omap(musb)) {
struct dma_controller *c = musb->dma_controller;
struct dma_channel *channel = musb_ep->dma;
u32 dma_addr = request->dma + request->actual;
@@ -790,23 +788,22 @@ static void rxstate(struct musb *musb, struct musb_request *req)
if (ret)
return;
}
-#endif
+
/*
* Unmap the dma buffer back to cpu if dma channel
* programming fails. This buffer is mapped if the
* channel allocation is successful
*/
- if (is_buffer_mapped(req)) {
- unmap_dma_buffer(req, musb);
-
- /*
- * Clear DMAENAB and AUTOCLEAR for the
- * PIO mode transfer
- */
- csr &= ~(MUSB_RXCSR_DMAENAB | MUSB_RXCSR_AUTOCLEAR);
- musb_writew(epio, MUSB_RXCSR, csr);
- }
+ unmap_dma_buffer(req, musb);
+ /*
+ * Clear DMAENAB and AUTOCLEAR for the
+ * PIO mode transfer
+ */
+ csr &= ~(MUSB_RXCSR_DMAENAB | MUSB_RXCSR_AUTOCLEAR);
+ musb_writew(epio, MUSB_RXCSR, csr);
+
+buffer_aint_mapped:
musb_read_fifo(musb_ep->hw_ep, fifo_count, (u8 *)
(request->buf + request->actual));
request->actual += fifo_count;
@@ -1684,6 +1681,40 @@ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
return 0;
}
+#ifdef CONFIG_BLACKFIN
+static struct usb_ep *musb_match_ep(struct usb_gadget *g,
+ struct usb_endpoint_descriptor *desc,
+ struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+ struct usb_ep *ep = NULL;
+
+ switch (usb_endpoint_type(desc)) {
+ case USB_ENDPOINT_XFER_ISOC:
+ case USB_ENDPOINT_XFER_BULK:
+ if (usb_endpoint_dir_in(desc))
+ ep = gadget_find_ep_by_name(g, "ep5in");
+ else
+ ep = gadget_find_ep_by_name(g, "ep6out");
+ break;
+ case USB_ENDPOINT_XFER_INT:
+ if (usb_endpoint_dir_in(desc))
+ ep = gadget_find_ep_by_name(g, "ep1in");
+ else
+ ep = gadget_find_ep_by_name(g, "ep2out");
+ break;
+ default:
+ break;
+ }
+
+ if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+ return ep;
+
+ return NULL;
+}
+#else
+#define musb_match_ep NULL
+#endif
+
static int musb_gadget_start(struct usb_gadget *g,
struct usb_gadget_driver *driver);
static int musb_gadget_stop(struct usb_gadget *g);
@@ -1697,6 +1728,7 @@ static const struct usb_gadget_ops musb_gadget_operations = {
.pullup = musb_gadget_pullup,
.udc_start = musb_gadget_start,
.udc_stop = musb_gadget_stop,
+ .match_ep = musb_match_ep,
};
/* ----------------------------------------------------------------------- */
@@ -1729,6 +1761,7 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
INIT_LIST_HEAD(&ep->end_point.ep_list);
if (!epnum) {
usb_ep_set_maxpacket_limit(&ep->end_point, 64);
+ ep->end_point.caps.type_control = true;
ep->end_point.ops = &musb_g_ep0_ops;
musb->g.ep0 = &ep->end_point;
} else {
@@ -1736,9 +1769,20 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_tx);
else
usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_rx);
+ ep->end_point.caps.type_iso = true;
+ ep->end_point.caps.type_bulk = true;
+ ep->end_point.caps.type_int = true;
ep->end_point.ops = &musb_ep_ops;
list_add_tail(&ep->end_point.ep_list, &musb->g.ep_list);
}
+
+ if (!epnum || hw_ep->is_shared_fifo) {
+ ep->end_point.caps.dir_in = true;
+ ep->end_point.caps.dir_out = true;
+ } else if (is_in)
+ ep->end_point.caps.dir_in = true;
+ else
+ ep->end_point.caps.dir_out = true;
}
/*
@@ -2075,6 +2119,7 @@ __acquires(musb->lock)
musb->g.b_hnp_enable = 0;
musb->g.a_alt_hnp_support = 0;
musb->g.a_hnp_support = 0;
+ musb->g.quirk_zlp_not_supp = 1;
/* Normal reset, as B-Device;
* or else after HNP, as A-Device
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-30 08:33:06 +0300