mirror of https://gitee.com/openkylin/linux.git
usb: musb: Remove ifdefs for musb_host_rx in musb_host.c part3
Remove ifdefs for musb_host_rx to get closer to building in all the DMA drivers. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Tony Lindgren
Felipe Balbi
parent
557d543e3f
commit
cff84bdb62
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@ -1572,8 +1572,8 @@ static inline int musb_rx_dma_iso_cppi41(struct dma_controller *dma,
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}
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#endif
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#ifdef CONFIG_USB_INVENTRA_DMA
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#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) || \
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defined(CONFIG_USB_TI_CPPI41_DMA)
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/* Host side RX (IN) using Mentor DMA works as follows:
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submit_urb ->
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- if queue was empty, ProgramEndpoint
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@ -1608,7 +1608,68 @@ static inline int musb_rx_dma_iso_cppi41(struct dma_controller *dma,
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* thus be a great candidate for using mode 1 ... for all but the
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* last packet of one URB's transfer.
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*/
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static int musb_rx_dma_inventra_cppi41(struct dma_controller *dma,
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struct musb_hw_ep *hw_ep,
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struct musb_qh *qh,
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struct urb *urb,
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size_t len)
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{
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struct dma_channel *channel = hw_ep->rx_channel;
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void __iomem *epio = hw_ep->regs;
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u16 val;
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int pipe;
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bool done;
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pipe = urb->pipe;
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if (usb_pipeisoc(pipe)) {
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struct usb_iso_packet_descriptor *d;
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d = urb->iso_frame_desc + qh->iso_idx;
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d->actual_length = len;
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/* even if there was an error, we did the dma
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* for iso_frame_desc->length
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*/
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if (d->status != -EILSEQ && d->status != -EOVERFLOW)
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d->status = 0;
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if (++qh->iso_idx >= urb->number_of_packets) {
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done = true;
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} else {
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/* REVISIT: Why ignore return value here? */
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if (musb_dma_cppi41(hw_ep->musb))
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done = musb_rx_dma_iso_cppi41(dma, hw_ep, qh,
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urb, len);
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done = false;
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}
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} else {
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/* done if urb buffer is full or short packet is recd */
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done = (urb->actual_length + len >=
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urb->transfer_buffer_length
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|| channel->actual_len < qh->maxpacket
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|| channel->rx_packet_done);
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}
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/* send IN token for next packet, without AUTOREQ */
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if (!done) {
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val = musb_readw(epio, MUSB_RXCSR);
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val |= MUSB_RXCSR_H_REQPKT;
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musb_writew(epio, MUSB_RXCSR, MUSB_RXCSR_H_WZC_BITS | val);
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}
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return done;
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}
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#else
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static inline int musb_rx_dma_inventra_cppi41(struct dma_controller *dma,
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struct musb_hw_ep *hw_ep,
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struct musb_qh *qh,
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struct urb *urb,
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size_t len)
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{
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return false;
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}
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#endif
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/*
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@ -1619,6 +1680,7 @@ void musb_host_rx(struct musb *musb, u8 epnum)
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{
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struct urb *urb;
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struct musb_hw_ep *hw_ep = musb->endpoints + epnum;
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struct dma_controller *c = musb->dma_controller;
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void __iomem *epio = hw_ep->regs;
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struct musb_qh *qh = hw_ep->in_qh;
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size_t xfer_len;
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@ -1766,56 +1828,18 @@ void musb_host_rx(struct musb *musb, u8 epnum)
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| MUSB_RXCSR_RXPKTRDY);
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musb_writew(hw_ep->regs, MUSB_RXCSR, val);
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#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) || \
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defined(CONFIG_USB_TI_CPPI41_DMA)
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if (usb_pipeisoc(pipe)) {
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struct usb_iso_packet_descriptor *d;
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d = urb->iso_frame_desc + qh->iso_idx;
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d->actual_length = xfer_len;
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/* even if there was an error, we did the dma
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* for iso_frame_desc->length
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*/
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if (d->status != -EILSEQ && d->status != -EOVERFLOW)
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d->status = 0;
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if (++qh->iso_idx >= urb->number_of_packets) {
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done = true;
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} else {
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struct dma_controller *c = musb->dma_controller;
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/* REVISIT: Why ignore return value here? */
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if (musb_dma_cppi41(musb))
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done = musb_rx_dma_iso_cppi41(c, hw_ep,
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qh, urb,
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xfer_len);
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done = false;
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}
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} else {
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/* done if urb buffer is full or short packet is recd */
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done = (urb->actual_length + xfer_len >=
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urb->transfer_buffer_length
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|| dma->actual_len < qh->maxpacket
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|| dma->rx_packet_done);
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if (musb_dma_inventra(musb) || musb_dma_ux500(musb) ||
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musb_dma_cppi41(musb)) {
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done = musb_rx_dma_inventra_cppi41(c, hw_ep, qh, urb, xfer_len);
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dev_dbg(hw_ep->musb->controller,
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"ep %d dma %s, rxcsr %04x, rxcount %d\n",
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epnum, done ? "off" : "reset",
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musb_readw(epio, MUSB_RXCSR),
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musb_readw(epio, MUSB_RXCOUNT));
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} else {
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done = true;
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}
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/* send IN token for next packet, without AUTOREQ */
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if (!done) {
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val |= MUSB_RXCSR_H_REQPKT;
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musb_writew(epio, MUSB_RXCSR,
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MUSB_RXCSR_H_WZC_BITS | val);
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}
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dev_dbg(musb->controller, "ep %d dma %s, rxcsr %04x, rxcount %d\n", epnum,
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done ? "off" : "reset",
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musb_readw(epio, MUSB_RXCSR),
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musb_readw(epio, MUSB_RXCOUNT));
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#else
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done = true;
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#endif
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} else if (urb->status == -EINPROGRESS) {
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/* if no errors, be sure a packet is ready for unloading */
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if (unlikely(!(rx_csr & MUSB_RXCSR_RXPKTRDY))) {
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