diff options
Diffstat (limited to 'drivers/usb/host/isp1760-hcd.c')
| -rw-r--r-- | drivers/usb/host/isp1760-hcd.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c index bdba8c5d844..c470cc83dbb 100644 --- a/drivers/usb/host/isp1760-hcd.c +++ b/drivers/usb/host/isp1760-hcd.c @@ -33,6 +33,7 @@ struct isp1760_hcd { struct inter_packet_info atl_ints[32]; struct inter_packet_info int_ints[32]; struct memory_chunk memory_pool[BLOCKS]; + u32 atl_queued; /* periodic schedule support */ #define DEFAULT_I_TDPS 1024 @@ -850,6 +851,11 @@ static void enqueue_an_ATL_packet(struct usb_hcd *hcd, struct isp1760_qh *qh, skip_map &= ~queue_entry; isp1760_writel(skip_map, hcd->regs + HC_ATL_PTD_SKIPMAP_REG); + priv->atl_queued++; + if (priv->atl_queued == 2) + isp1760_writel(INTERRUPT_ENABLE_SOT_MASK, + hcd->regs + HC_INTERRUPT_ENABLE); + buffstatus = isp1760_readl(hcd->regs + HC_BUFFER_STATUS_REG); buffstatus |= ATL_BUFFER; isp1760_writel(buffstatus, hcd->regs + HC_BUFFER_STATUS_REG); @@ -992,6 +998,7 @@ static void do_atl_int(struct usb_hcd *usb_hcd) u32 dw3; status = 0; + priv->atl_queued--; queue_entry = __ffs(done_map); done_map &= ~(1 << queue_entry); @@ -1054,11 +1061,6 @@ static void do_atl_int(struct usb_hcd *usb_hcd) * device is not able to send data fast enough. * This happens mostly on slower hardware. */ - printk(KERN_NOTICE "Reloading ptd %p/%p... qh %p read: " - "%d of %zu done: %08x cur: %08x\n", qtd, - urb, qh, PTD_XFERRED_LENGTH(dw3), - qtd->length, done_map, - (1 << queue_entry)); /* RL counter = ERR counter */ dw3 &= ~(0xf << 19); @@ -1086,6 +1088,11 @@ static void do_atl_int(struct usb_hcd *usb_hcd) priv_write_copy(priv, (u32 *)&ptd, usb_hcd->regs + atl_regs, sizeof(ptd)); + priv->atl_queued++; + if (priv->atl_queued == 2) + isp1760_writel(INTERRUPT_ENABLE_SOT_MASK, + usb_hcd->regs + HC_INTERRUPT_ENABLE); + buffstatus = isp1760_readl(usb_hcd->regs + HC_BUFFER_STATUS_REG); buffstatus |= ATL_BUFFER; @@ -1191,6 +1198,9 @@ static void do_atl_int(struct usb_hcd *usb_hcd) skip_map = isp1760_readl(usb_hcd->regs + HC_ATL_PTD_SKIPMAP_REG); } + if (priv->atl_queued <= 1) + isp1760_writel(INTERRUPT_ENABLE_MASK, + usb_hcd->regs + HC_INTERRUPT_ENABLE); } static void do_intl_int(struct usb_hcd *usb_hcd) @@ -1770,7 +1780,7 @@ static irqreturn_t isp1760_irq(struct usb_hcd *usb_hcd) goto leave; isp1760_writel(imask, usb_hcd->regs + HC_INTERRUPT_REG); - if (imask & HC_ATL_INT) + if (imask & (HC_ATL_INT | HC_SOT_INT)) do_atl_int(usb_hcd); if (imask & HC_INTL_INT) |