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[adm5120] more USB driver changes

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9550 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
2007-11-15 09:16:47 +00:00
parent d895ddd832
commit 7fcae4c7e6
5 changed files with 143 additions and 216 deletions
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73
target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c
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@@ -45,20 +45,21 @@
#include "../core/hcd.h"
#include "../core/hub.h"
#define DRIVER_VERSION "v0.05"
#define DRIVER_VERSION "v0.06"
#define DRIVER_AUTHOR "Gabor Juhos <juhosg at openwrt.org>"
#define DRIVER_DESC "ADMtek USB 1.1 Host Controller Driver"
/*-------------------------------------------------------------------------*/
#define ADMHC_VERBOSE_DEBUG /* not always helpful */
#undef ADMHC_VERBOSE_DEBUG /* not always helpful */
/* For initializing controller (mask in an HCFS mode too) */
#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
#define ADMHC_INTR_INIT \
( ADMHC_INTR_MIE | ADMHC_INTR_INSM | ADMHC_INTR_FATI \
| ADMHC_INTR_RESI | ADMHC_INTR_TDC | ADMHC_INTR_BABI )
| ADMHC_INTR_RESI | ADMHC_INTR_TDC | ADMHC_INTR_BABI \
| ADMHC_INTR_7 | ADMHC_INTR_6 )
/*-------------------------------------------------------------------------*/
@@ -346,6 +347,7 @@ static int admhc_get_frame_number(struct usb_hcd *hcd)
static void admhc_usb_reset(struct admhcd *ahcd)
{
admhc_dbg(ahcd, "usb reset\n");
ahcd->host_control = ADMHC_BUSS_RESET;
admhc_writel(ahcd, ahcd->host_control, &ahcd->regs->host_control);
}
@@ -359,6 +361,8 @@ admhc_shutdown(struct usb_hcd *hcd)
{
struct admhcd *ahcd;
admhc_dbg(ahcd, "shutdown\n");
ahcd = hcd_to_admhcd(hcd);
admhc_intr_disable(ahcd, ADMHC_INTR_MIE);
admhc_dma_disable(ahcd);
@@ -394,7 +398,7 @@ static void admhc_eds_cleanup(struct admhcd *ahcd)
ahcd->ed_head = NULL;
}
#define ED_DUMMY_INFO (ED_SPEED_FULL | ED_SKIP)
#define ED_DUMMY_INFO 0
static int admhc_eds_init(struct admhcd *ahcd)
{
@@ -527,8 +531,8 @@ static int admhc_run(struct admhcd *ahcd)
break;
}
admhc_writel(ahcd, ahcd->host_control, &ahcd->regs->host_control);
msleep(temp);
temp = admhc_read_rhdesc(ahcd);
if (!(temp & ADMHC_RH_NPS)) {
/* power down each port */
@@ -547,7 +551,7 @@ static int admhc_run(struct admhcd *ahcd)
admhc_err(ahcd, "USB HC reset timed out!\n");
return -1;
}
udelay (1);
udelay(1);
}
/* enable HOST mode, before access any host specific register */
@@ -562,22 +566,10 @@ static int admhc_run(struct admhcd *ahcd)
hcd->poll_rh = 1;
hcd->uses_new_polling = 1;
#if 0
/* wake on ConnectStatusChange, matching external hubs */
admhc_writel(ahcd, RH_HS_DRWE, &ahcd->regs->roothub.status);
#else
/* FIXME roothub_write_status (ahcd, ADMHC_RH_DRWE); */
#endif
/* Choose the interrupts we care about now, others later on demand */
admhc_intr_ack(ahcd, ~0);
admhc_intr_enable(ahcd, ADMHC_INTR_INIT);
admhc_writel(ahcd, ADMHC_RH_NPS | ADMHC_RH_LPSC, &ahcd->regs->rhdesc);
/* start controller operations */
ahcd->host_control = ADMHC_BUSS_OPER;
admhc_writel(ahcd, ahcd->host_control, &ahcd->regs->host_control);
hcd->state = HC_STATE_RUNNING;
temp = 20;
while ((admhc_readl(ahcd, &ahcd->regs->host_control)
@@ -590,12 +582,24 @@ static int admhc_run(struct admhcd *ahcd)
mdelay(1);
}
hcd->state = HC_STATE_RUNNING;
ahcd->next_statechange = jiffies + STATECHANGE_DELAY;
#if 0
/* FIXME */
/* wake on ConnectStatusChange, matching external hubs */
admhc_writel(ahcd, ADMHC_RH_DRWE, &ahcd->regs->rhdesc);
#endif
/* Choose the interrupts we care about now, others later on demand */
temp = ADMHC_INTR_INIT;
admhc_intr_ack(ahcd, ~0);
admhc_intr_enable(ahcd, temp);
admhc_writel(ahcd, ADMHC_RH_NPS | ADMHC_RH_LPSC, &ahcd->regs->rhdesc);
ahcd->next_statechange = jiffies + STATECHANGE_DELAY;
spin_unlock_irq(&ahcd->lock);
mdelay(ADMHC_POTPGT);
hcd->state = HC_STATE_RUNNING;
return 0;
}
@@ -611,13 +615,27 @@ static irqreturn_t admhc_irq(struct usb_hcd *hcd)
u32 ints;
ints = admhc_readl(ahcd, &regs->int_status);
if (!(ints & ADMHC_INTR_INTA))
if (!(ints & ADMHC_INTR_INTA)) {
/* no unmasked interrupt status is set */
admhc_err(ahcd, "spurious interrupt %08x\n", ints);
return IRQ_NONE;
}
ints &= admhc_readl(ahcd, &regs->int_enable);
if (!ints)
if (!ints) {
admhc_err(ahcd, "hardware irq problems?\n");
return IRQ_NONE;
}
if (ints & ADMHC_INTR_6) {
admhc_err(ahcd, "unknown interrupt 6\n");
admhc_dump(ahcd, 0);
}
if (ints & ADMHC_INTR_7) {
admhc_err(ahcd, "unknown interrupt 7\n");
admhc_dump(ahcd, 0);
}
if (ints & ADMHC_INTR_FATI) {
admhc_disable(ahcd);
@@ -655,16 +673,17 @@ static irqreturn_t admhc_irq(struct usb_hcd *hcd)
admhc_intr_ack(ahcd, ADMHC_INTR_RESI);
hcd->poll_rh = 1;
if (ahcd->autostop) {
spin_lock(&ahcd->lock);
admhc_rh_resume(ahcd);
spin_unlock(&ahcd->lock);
} else
usb_hcd_resume_root_hub(hcd);
}
if (ints & ADMHC_INTR_TDC) {
admhc_intr_ack(ahcd, ADMHC_INTR_TDC);
admhc_vdbg(ahcd, "Transfer Descriptor Complete\n");
if (HC_IS_RUNNING(hcd->state))
admhc_intr_disable(ahcd, ADMHC_INTR_TDC);
admhc_vdbg(ahcd, "Transfer Descriptor Complete\n");
spin_lock(&ahcd->lock);
admhc_td_complete(ahcd);
spin_unlock(&ahcd->lock);
@@ -674,15 +693,13 @@ static irqreturn_t admhc_irq(struct usb_hcd *hcd)
if (ints & ADMHC_INTR_SO) {
/* could track INTR_SO to reduce available PCI/... bandwidth */
admhc_vdbg(ahcd, "Schedule Overrun\n");
admhc_err(ahcd, "Schedule Overrun\n");
}
if (ints & ADMHC_INTR_SOFI) {
admhc_intr_ack(ahcd, ADMHC_INTR_SOFI);
spin_lock(&ahcd->lock);
/* handle any pending ED removes */
admhc_finish_unlinks(ahcd, admhc_frame_no(ahcd));
admhc_sof_refill(ahcd);
spin_unlock(&ahcd->lock);
}