Update the EHCI driver to support interrupt transfers on PowerPC.
Signed-off-by: Adrian Cox adrian@humboldt.co.uk --- Changes in v2: - Whitespace and line length fixes for checkstyle
drivers/usb/host/ehci-hcd.c | 56 ++++++++++++++++++++++++------------------- 1 file changed, 31 insertions(+), 25 deletions(-)
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 6017090..eaf5913 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -998,8 +998,8 @@ int usb_lowlevel_init(int index, enum usb_init_type init, void **controller) if (!ehcic[index].periodic_list) return -ENOMEM; for (i = 0; i < 1024; i++) { - ehcic[index].periodic_list[i] = (uint32_t)periodic - | QH_LINK_TYPE_QH; + ehcic[index].periodic_list[i] = cpu_to_hc32((uint32_t)periodic + | QH_LINK_TYPE_QH); }
flush_dcache_range((uint32_t)ehcic[index].periodic_list, @@ -1089,7 +1089,7 @@ struct int_queue { struct qTD *tds; };
-#define NEXT_QH(qh) (struct QH *)((qh)->qh_link & ~0x1f) +#define NEXT_QH(qh) (struct QH *)(hc32_to_cpu((qh)->qh_link) & ~0x1f)
static int enable_periodic(struct ehci_ctrl *ctrl) @@ -1184,41 +1184,47 @@ create_int_queue(struct usb_device *dev, unsigned long pipe, int queuesize, struct qTD *td = result->tds + i; void **buf = &qh->buffer;
- qh->qh_link = (uint32_t)(qh+1) | QH_LINK_TYPE_QH; + qh->qh_link = cpu_to_hc32((uint32_t)(qh+1) | QH_LINK_TYPE_QH); if (i == queuesize - 1) - qh->qh_link = QH_LINK_TERMINATE; + qh->qh_link = cpu_to_hc32(QH_LINK_TERMINATE);
- qh->qh_overlay.qt_next = (uint32_t)td; - qh->qh_overlay.qt_altnext = QT_NEXT_TERMINATE; - qh->qh_endpt1 = (0 << 28) | /* No NAK reload (ehci 4.9) */ + qh->qh_overlay.qt_next = cpu_to_hc32((uint32_t)td); + qh->qh_overlay.qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE); + qh->qh_endpt1 = + cpu_to_hc32((0 << 28) | /* No NAK reload (ehci 4.9) */ (usb_maxpacket(dev, pipe) << 16) | /* MPS */ (1 << 14) | QH_ENDPT1_EPS(ehci_encode_speed(dev->speed)) | (usb_pipeendpoint(pipe) << 8) | /* Endpoint Number */ - (usb_pipedevice(pipe) << 0); - qh->qh_endpt2 = (1 << 30) | /* 1 Tx per mframe */ - (1 << 0); /* S-mask: microframe 0 */ + (usb_pipedevice(pipe) << 0)); + qh->qh_endpt2 = cpu_to_hc32((1 << 30) | /* 1 Tx per mframe */ + (1 << 0)); /* S-mask: microframe 0 */ if (dev->speed == USB_SPEED_LOW || dev->speed == USB_SPEED_FULL) { debug("TT: port: %d, hub address: %d\n", dev->portnr, dev->parent->devnum); - qh->qh_endpt2 |= (dev->portnr << 23) | + qh->qh_endpt2 |= cpu_to_hc32((dev->portnr << 23) | (dev->parent->devnum << 16) | - (0x1c << 8); /* C-mask: microframes 2-4 */ + (0x1c << 8)); /* C-mask: microframes 2-4 */ }
- td->qt_next = QT_NEXT_TERMINATE; - td->qt_altnext = QT_NEXT_TERMINATE; + td->qt_next = cpu_to_hc32(QT_NEXT_TERMINATE); + td->qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE); debug("communication direction is '%s'\n", usb_pipein(pipe) ? "in" : "out"); - td->qt_token = (elementsize << 16) | + td->qt_token = cpu_to_hc32((elementsize << 16) | ((usb_pipein(pipe) ? 1 : 0) << 8) | /* IN/OUT token */ - 0x80; /* active */ - td->qt_buffer[0] = (uint32_t)buffer + i * elementsize; - td->qt_buffer[1] = (td->qt_buffer[0] + 0x1000) & ~0xfff; - td->qt_buffer[2] = (td->qt_buffer[0] + 0x2000) & ~0xfff; - td->qt_buffer[3] = (td->qt_buffer[0] + 0x3000) & ~0xfff; - td->qt_buffer[4] = (td->qt_buffer[0] + 0x4000) & ~0xfff; + 0x80); /* active */ + td->qt_buffer[0] = + cpu_to_hc32((uint32_t)buffer + i * elementsize); + td->qt_buffer[1] = + cpu_to_hc32((td->qt_buffer[0] + 0x1000) & ~0xfff); + td->qt_buffer[2] = + cpu_to_hc32((td->qt_buffer[0] + 0x2000) & ~0xfff); + td->qt_buffer[3] = + cpu_to_hc32((td->qt_buffer[0] + 0x3000) & ~0xfff); + td->qt_buffer[4] = + cpu_to_hc32((td->qt_buffer[0] + 0x4000) & ~0xfff);
*buf = buffer + i * elementsize; } @@ -1241,7 +1247,7 @@ create_int_queue(struct usb_device *dev, unsigned long pipe, int queuesize, /* hook up to periodic list */ struct QH *list = &ctrl->periodic_queue; result->last->qh_link = list->qh_link; - list->qh_link = (uint32_t)result->first | QH_LINK_TYPE_QH; + list->qh_link = cpu_to_hc32((uint32_t)result->first | QH_LINK_TYPE_QH);
flush_dcache_range((uint32_t)result->last, ALIGN_END_ADDR(struct QH, result->last, 1)); @@ -1280,7 +1286,7 @@ void *poll_int_queue(struct usb_device *dev, struct int_queue *queue) /* still active */ invalidate_dcache_range((uint32_t)cur, ALIGN_END_ADDR(struct QH, cur, 1)); - if (cur->qh_overlay.qt_token & 0x80) { + if (cur->qh_overlay.qt_token & cpu_to_hc32(0x80)) { debug("Exit poll_int_queue with no completed intr transfer. " "token is %x\n", cur->qh_overlay.qt_token); return NULL; @@ -1311,7 +1317,7 @@ destroy_int_queue(struct usb_device *dev, struct int_queue *queue)
struct QH *cur = &ctrl->periodic_queue; timeout = get_timer(0) + 500; /* abort after 500ms */ - while (!(cur->qh_link & QH_LINK_TERMINATE)) { + while (!(cur->qh_link & cpu_to_hc32(QH_LINK_TERMINATE))) { debug("considering %p, with qh_link %x\n", cur, cur->qh_link); if (NEXT_QH(cur) == queue->first) { debug("found candidate. removing from chain\n");