diff options
Diffstat (limited to 'drivers/usb/musb/musb_gadget.c')
| -rw-r--r-- | drivers/usb/musb/musb_gadget.c | 87 |
1 files changed, 66 insertions, 21 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 625d482f1..67ad630c8 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 |