diff options
Diffstat (limited to 'target/linux')
7 files changed, 477 insertions, 556 deletions
diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120-drv.c b/target/linux/adm5120/files/drivers/usb/host/adm5120-drv.c index 208416e03..60f955279 100644 --- a/target/linux/adm5120/files/drivers/usb/host/adm5120-drv.c +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-drv.c @@ -163,14 +163,14 @@ static const struct hc_driver adm5120_hc_driver = { /* * scheduling support */ - .get_frame_number = admhc_get_frame, + .get_frame_number = admhc_get_frame_number, /* * root hub support */ .hub_status_data = admhc_hub_status_data, .hub_control = admhc_hub_control, - .hub_irq_enable = admhc_rhsc_enable, + .hub_irq_enable = admhc_hub_irq_enable, #ifdef CONFIG_PM .bus_suspend = admhc_bus_suspend, .bus_resume = admhc_bus_resume, @@ -201,8 +201,7 @@ static int usb_hcd_adm5120_remove(struct platform_device *pdev) return 0; } -#if 0 -/* TODO */ +#ifdef CONFIG_PM static int usb_hcd_adm5120_suspend(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); @@ -216,17 +215,17 @@ static int usb_hcd_adm5120_resume(struct platform_device *dev) return 0; } -#endif +#else +#define usb_hcd_adm5120_suspend NULL +#define usb_hcd_adm5120_resume NULL +#endif /* CONFIG_PM */ static struct platform_driver usb_hcd_adm5120_driver = { .probe = usb_hcd_adm5120_probe, .remove = usb_hcd_adm5120_remove, .shutdown = usb_hcd_platform_shutdown, -#if 0 - /* TODO */ .suspend = usb_hcd_adm5120_suspend, .resume = usb_hcd_adm5120_resume, -#endif .driver = { .name = "adm5120-hcd", .owner = THIS_MODULE, diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c b/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c index fae5aa64f..4dfd1f4fe 100644 --- a/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c @@ -45,14 +45,14 @@ #include "../core/hcd.h" #include "../core/hub.h" -#define DRIVER_VERSION "v0.02" +#define DRIVER_VERSION "v0.03" #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 LATE_ED_SCHEDULE +#undef ADMHC_LOCK_DMA /* For initializing controller (mask in an HCFS mode too) */ #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR @@ -73,9 +73,10 @@ static void admhc_dump(struct admhcd *ahcd, int verbose); static int admhc_init(struct admhcd *ahcd); static void admhc_stop(struct usb_hcd *hcd); -#include "adm5120-hub.c" #include "adm5120-dbg.c" #include "adm5120-mem.c" +#include "adm5120-pm.c" +#include "adm5120-hub.c" #include "adm5120-q.c" /*-------------------------------------------------------------------------*/ @@ -92,7 +93,7 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, unsigned int pipe = urb->pipe; int td_cnt = 0; unsigned long flags; - int retval = 0; + int ret = 0; #ifdef ADMHC_VERBOSE_DEBUG spin_lock_irqsave(&ahcd->lock, flags); @@ -160,11 +161,11 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, spin_lock_irqsave(&ahcd->lock, flags); /* don't submit to a dead HC */ if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) { - retval = -ENODEV; + ret = -ENODEV; goto fail; } if (!HC_IS_RUNNING(hcd->state)) { - retval = -ENODEV; + ret = -ENODEV; goto fail; } @@ -174,7 +175,7 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, spin_unlock(&urb->lock); urb->hcpriv = urb_priv; finish_urb(ahcd, urb); - retval = 0; + ret = 0; goto fail; } @@ -202,18 +203,18 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, list_add_tail(&urb_priv->pending, &ed->urb_pending); /* schedule the ED */ - retval = ed_schedule(ahcd, ed); + ret = ed_schedule(ahcd, ed); fail0: spin_unlock(&urb->lock); fail: - if (retval) { + if (ret) { urb_priv = urb->hcpriv; urb_priv_free(ahcd, urb_priv); } spin_unlock_irqrestore(&ahcd->lock, flags); - return retval; + return ret; } /* @@ -338,7 +339,7 @@ sanitize: return; } -static int admhc_get_frame(struct usb_hcd *hcd) +static int admhc_get_frame_number(struct usb_hcd *hcd) { struct admhcd *ahcd = hcd_to_admhcd(hcd); @@ -364,8 +365,6 @@ admhc_shutdown(struct usb_hcd *hcd) admhc_intr_disable(ahcd, ADMHC_INTR_MIE); admhc_dma_disable(ahcd); admhc_usb_reset(ahcd); - /* flush the writes */ - admhc_writel_flush(ahcd); } /*-------------------------------------------------------------------------* @@ -509,7 +508,7 @@ static int admhc_run(struct admhcd *ahcd) admhc_dbg(ahcd, "fminterval delta %d\n", ahcd->fminterval - FI); ahcd->fminterval |= - (FSLDP (ahcd->fminterval) << ADMHC_SFI_FSLDP_SHIFT); + (FSLDP(ahcd->fminterval) << ADMHC_SFI_FSLDP_SHIFT); /* also: power/overcurrent flags in rhdesc */ } @@ -531,9 +530,6 @@ static int admhc_run(struct admhcd *ahcd) } admhc_writel(ahcd, ahcd->host_control, &ahcd->regs->host_control); - /* flush the writes */ - admhc_writel_flush(ahcd); - msleep(temp); temp = admhc_get_rhdesc(ahcd); if (!(temp & ADMHC_RH_NPS)) { @@ -542,8 +538,6 @@ static int admhc_run(struct admhcd *ahcd) admhc_writel(ahcd, ADMHC_PS_CPP, &ahcd->regs->portstatus[temp]); } - /* flush those writes */ - admhc_writel_flush(ahcd); /* 2msec timelimit here means no irqs/preempt */ spin_lock_irq(&ahcd->lock); @@ -585,9 +579,6 @@ retry: admhc_writel(ahcd, ADMHC_RH_NPS | ADMHC_RH_LPSC, &ahcd->regs->rhdesc); - /* flush those writes */ - admhc_writel_flush(ahcd); - /* start controller operations */ ahcd->host_control = ADMHC_BUSS_OPER; admhc_writel(ahcd, ahcd->host_control, &ahcd->regs->host_control); @@ -604,27 +595,8 @@ retry: } hcd->state = HC_STATE_RUNNING; - ahcd->next_statechange = jiffies + STATECHANGE_DELAY; -#if 0 - /* FIXME: enabling DMA is always failed here for an unknown reason */ - admhc_dma_enable(ahcd); - - temp = 200; - while ((admhc_readl(ahcd, &ahcd->regs->host_control) - & ADMHC_HC_DMAE) != ADMHC_HC_DMAE) { - if (--temp == 0) { - spin_unlock_irq(&ahcd->lock); - admhc_err(ahcd, "unable to enable DMA!\n"); - admhc_dump(ahcd, 1); - return -1; - } - mdelay(1); - } - -#endif - spin_unlock_irq(&ahcd->lock); mdelay(ADMHC_POTPGT); @@ -650,7 +622,6 @@ static irqreturn_t admhc_irq(struct usb_hcd *hcd) ints &= admhc_readl(ahcd, ®s->int_enable); - spin_lock(&ahcd->lock); if (ints & ADMHC_INTR_FATI) { /* e.g. due to PCI Master/Target Abort */ admhc_disable(ahcd); @@ -700,7 +671,9 @@ static irqreturn_t admhc_irq(struct usb_hcd *hcd) 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); if (HC_IS_RUNNING(hcd->state)) admhc_intr_enable(ahcd, ADMHC_INTR_TDC); } @@ -714,15 +687,15 @@ static irqreturn_t admhc_irq(struct usb_hcd *hcd) admhc_intr_ack(ahcd, ADMHC_INTR_SOFI); /* handle any pending ED removes */ admhc_finish_unlinks(ahcd, admhc_frame_no(ahcd)); + spin_lock(&ahcd->lock); admhc_sof_refill(ahcd); + spin_unlock(&ahcd->lock); } if (HC_IS_RUNNING(hcd->state)) { admhc_intr_ack(ahcd, ints); admhc_intr_enable(ahcd, ADMHC_INTR_MIE); - admhc_writel_flush(ahcd); } - spin_unlock(&ahcd->lock); return IRQ_HANDLED; } @@ -750,87 +723,6 @@ static void admhc_stop(struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -/* must not be called from interrupt context */ - -#ifdef CONFIG_PM - -static int admhc_restart(struct admhcd *ahcd) -{ - int temp; - int i; - struct urb_priv *priv; - - /* mark any devices gone, so they do nothing till khubd disconnects. - * recycle any "live" eds/tds (and urbs) right away. - * later, khubd disconnect processing will recycle the other state, - * (either as disconnect/reconnect, or maybe someday as a reset). - */ - spin_lock_irq(&ahcd->lock); - admhc_disable(ahcd); - usb_root_hub_lost_power(admhcd_to_hcd(ahcd)->self.root_hub); - if (!list_empty(&ahcd->pending)) - admhc_dbg(ahcd, "abort schedule...\n"); - list_for_each_entry(priv, &ahcd->pending, pending) { - struct urb *urb = priv->td[0]->urb; - struct ed *ed = priv->ed; - - switch (ed->state) { - case ED_OPER: - ed->state = ED_UNLINK; - ed->hwINFO |= cpu_to_hc32(ahcd, ED_DEQUEUE); - ed_deschedule (ahcd, ed); - - ed->ed_next = ahcd->ed_rm_list; - ed->ed_prev = NULL; - ahcd->ed_rm_list = ed; - /* FALLTHROUGH */ - case ED_UNLINK: - break; - default: - admhc_dbg(ahcd, "bogus ed %p state %d\n", - ed, ed->state); - } - - spin_lock(&urb->lock); - urb->status = -ESHUTDOWN; - spin_unlock(&urb->lock); - } - finish_unlinks(ahcd, 0); - spin_unlock_irq(&ahcd->lock); - - /* paranoia, in case that didn't work: */ - - /* empty the interrupt branches */ - for (i = 0; i < NUM_INTS; i++) ahcd->load[i] = 0; - for (i = 0; i < NUM_INTS; i++) ahcd->hcca->int_table[i] = 0; - - /* no EDs to remove */ - ahcd->ed_rm_list = NULL; - - /* empty control and bulk lists */ - ahcd->ed_controltail = NULL; - ahcd->ed_bulktail = NULL; - - if ((temp = admhc_run(ahcd)) < 0) { - admhc_err(ahcd, "can't restart, %d\n", temp); - return temp; - } else { - /* here we "know" root ports should always stay powered, - * and that if we try to turn them back on the root hub - * will respond to CSC processing. - */ - i = ahcd->num_ports; - while (i--) - admhc_writel(ahcd, RH_PS_PSS, - &ahcd->regs->portstatus[i]); - admhc_dbg(ahcd, "restart complete\n"); - } - return 0; -} -#endif - -/*-------------------------------------------------------------------------*/ - #ifdef CONFIG_MIPS_ADM5120 #include "adm5120-drv.c" #define PLATFORM_DRIVER usb_hcd_adm5120_driver @@ -844,7 +736,7 @@ static int admhc_restart(struct admhcd *ahcd) static int __init admhc_hcd_mod_init(void) { - int retval = 0; + int ret = 0; if (usb_disabled()) return -ENODEV; @@ -854,18 +746,18 @@ static int __init admhc_hcd_mod_init(void) sizeof (struct ed), sizeof (struct td)); #ifdef PLATFORM_DRIVER - retval = platform_driver_register(&PLATFORM_DRIVER); - if (retval < 0) + ret = platform_driver_register(&PLATFORM_DRIVER); + if (ret < 0) goto error_platform; #endif - return retval; + return ret; #ifdef PLATFORM_DRIVER platform_driver_unregister(&PLATFORM_DRIVER); error_platform: #endif - return retval; + return ret; } module_init(admhc_hcd_mod_init); diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120-hub.c b/target/linux/adm5120/files/drivers/usb/host/adm5120-hub.c index dc1a4a52d..48e61e988 100644 --- a/target/linux/adm5120/files/drivers/usb/host/adm5120-hub.c +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-hub.c @@ -58,7 +58,7 @@ /*-------------------------------------------------------------------------*/ /* hcd->hub_irq_enable() */ -static void admhc_rhsc_enable(struct usb_hcd *hcd) +static void admhc_hub_irq_enable(struct usb_hcd *hcd) { struct admhcd *ahcd = hcd_to_admhcd(hcd); @@ -69,360 +69,6 @@ static void admhc_rhsc_enable(struct usb_hcd *hcd) spin_unlock_irq(&ahcd->lock); } -#define OHCI_SCHED_ENABLES \ - (OHCI_CTRL_CLE|OHCI_CTRL_BLE|OHCI_CTRL_PLE|OHCI_CTRL_IE) - -#ifdef CONFIG_PM -static int admhc_restart(struct admhcd *ahcd); - -static int admhc_rh_suspend(struct admhcd *ahcd, int autostop) -__releases(ahcd->lock) -__acquires(ahcd->lock) -{ - int status = 0; - - ahcd->hc_control = admhc_readl(ahcd, &ahcd->regs->control); - switch (ahcd->hc_control & OHCI_CTRL_HCFS) { - case OHCI_USB_RESUME: - admhc_dbg(ahcd, "resume/suspend?\n"); - ahcd->hc_control &= ~OHCI_CTRL_HCFS; - ahcd->hc_control |= OHCI_USB_RESET; - admhc_writel(ahcd, ahcd->hc_control, &ahcd->ahcd->regs->control); - (void) admhc_readl(ahcd, &ahcd->regs->control); - /* FALL THROUGH */ - case OHCI_USB_RESET: - status = -EBUSY; - admhc_dbg(ahcd, "needs reinit!\n"); - goto done; - case OHCI_USB_SUSPEND: - if (!ahcd->autostop) { - admhc_dbg(ahcd, "already suspended\n"); - goto done; - } - } - admhc_dbg(ahcd, "%s root hub\n", - autostop ? "auto-stop" : "suspend"); - - /* First stop any processing */ - if (!autostop && (ahcd->hc_control & OHCI_SCHED_ENABLES)) { - ahcd->hc_control &= ~OHCI_SCHED_ENABLES; - admhc_writel(ahcd, ahcd->hc_control, &ahcd->ahcd->regs->control); - ahcd->hc_control = admhc_readl(ahcd, &ahcd->regs->control); - admhc_writel(ahcd, OHCI_INTR_SF, &ahcd->regs->intrstatus); - - /* sched disables take effect on the next frame, - * then the last WDH could take 6+ msec - */ - admhc_dbg(ahcd, "stopping schedules ...\n"); - ahcd->autostop = 0; - spin_unlock_irq (&ahcd->lock); - msleep (8); - spin_lock_irq (&ahcd->lock); - } - dl_done_list (ahcd); - finish_unlinks (ahcd, admhc_frame_no(ahcd)); - - /* maybe resume can wake root hub */ - if (device_may_wakeup(&admhcd_to_hcd(ahcd)->self.root_hub->dev) || - autostop) - ahcd->hc_control |= OHCI_CTRL_RWE; - else { - admhc_writel(ahcd, OHCI_INTR_RHSC, &ahcd->regs->intrdisable); - ahcd->hc_control &= ~OHCI_CTRL_RWE; - } - - /* Suspend hub ... this is the "global (to this bus) suspend" mode, - * which doesn't imply ports will first be individually suspended. - */ - ahcd->hc_control &= ~OHCI_CTRL_HCFS; - ahcd->hc_control |= OHCI_USB_SUSPEND; - admhc_writel(ahcd, ahcd->hc_control, &ahcd->ahcd->regs->control); - (void) admhc_readl(ahcd, &ahcd->regs->control); - - /* no resumes until devices finish suspending */ - if (!autostop) { - ahcd->next_statechange = jiffies + msecs_to_jiffies (5); - ahcd->autostop = 0; - } - -done: - return status; -} - -static inline struct ed *find_head(struct ed *ed) -{ - /* for bulk and control lists */ - while (ed->ed_prev) - ed = ed->ed_prev; - return ed; -} - -/* caller has locked the root hub */ -static int admhc_rh_resume(struct admhcd *ahcd) -__releases(ahcd->lock) -__acquires(ahcd->lock) -{ - struct usb_hcd *hcd = admhcd_to_hcd (ahcd); - u32 temp, enables; - int status = -EINPROGRESS; - int autostopped = ahcd->autostop; - - ahcd->autostop = 0; - ahcd->hc_control = admhc_readl(ahcd, &ahcd->regs->control); - - if (ahcd->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) { - /* this can happen after resuming a swsusp snapshot */ - if (hcd->state == HC_STATE_RESUMING) { - admhc_dbg(ahcd, "BIOS/SMM active, control %03x\n", - ahcd->hc_control); - status = -EBUSY; - /* this happens when pmcore resumes HC then root */ - } else { - admhc_dbg(ahcd, "duplicate resume\n"); - status = 0; - } - } else switch (ahcd->hc_control & OHCI_CTRL_HCFS) { - case OHCI_USB_SUSPEND: - ahcd->hc_control &= ~(OHCI_CTRL_HCFS|OHCI_SCHED_ENABLES); - ahcd->hc_control |= OHCI_USB_RESUME; - admhc_writel(ahcd, ahcd->hc_control, &ahcd->ahcd->regs->control); - (void) admhc_readl(ahcd, &ahcd->regs->control); - admhc_dbg(ahcd, "%s root hub\n", - autostopped ? "auto-start" : "resume"); - break; - case OHCI_USB_RESUME: - /* HCFS changes sometime after INTR_RD */ - admhc_dbg(ahcd, "%swakeup root hub\n", - autostopped ? "auto-" : ""); - break; - case OHCI_USB_OPER: - /* this can happen after resuming a swsusp snapshot */ - admhc_dbg(ahcd, "snapshot resume? reinit\n"); - status = -EBUSY; - break; - default: /* RESET, we lost power */ - admhc_dbg(ahcd, "lost power\n"); - status = -EBUSY; - } - if (status == -EBUSY) { - if (!autostopped) { - spin_unlock_irq (&ahcd->lock); - (void) ahcd_init (ahcd); - status = admhc_restart (ahcd); - spin_lock_irq (&ahcd->lock); - } - return status; - } - if (status != -EINPROGRESS) - return status; - if (autostopped) - goto skip_resume; - spin_unlock_irq (&ahcd->lock); - - /* Some controllers (lucent erratum) need extra-long delays */ - msleep (20 /* usb 11.5.1.10 */ + 12 /* 32 msec counter */ + 1); - - temp = admhc_readl(ahcd, &ahcd->regs->control); - temp &= OHCI_CTRL_HCFS; - if (temp != OHCI_USB_RESUME) { - admhc_err (ahcd, "controller won't resume\n"); - spin_lock_irq(&ahcd->lock); - return -EBUSY; - } - - /* disable old schedule state, reinit from scratch */ - admhc_writel(ahcd, 0, &ahcd->regs->ed_controlhead); - admhc_writel(ahcd, 0, &ahcd->regs->ed_controlcurrent); - admhc_writel(ahcd, 0, &ahcd->regs->ed_bulkhead); - admhc_writel(ahcd, 0, &ahcd->regs->ed_bulkcurrent); - admhc_writel(ahcd, 0, &ahcd->regs->ed_periodcurrent); - admhc_writel(ahcd, (u32) ahcd->hcca_dma, &ahcd->ahcd->regs->hcca); - - /* Sometimes PCI D3 suspend trashes frame timings ... */ - periodic_reinit(ahcd); - - /* the following code is executed with ahcd->lock held and - * irqs disabled if and only if autostopped is true - */ - -skip_resume: - /* interrupts might have been disabled */ - admhc_writel(ahcd, OHCI_INTR_INIT, &ahcd->regs->int_enable); - if (ahcd->ed_rm_list) - admhc_writel(ahcd, OHCI_INTR_SF, &ahcd->regs->int_enable); - - /* Then re-enable operations */ - admhc_writel(ahcd, OHCI_USB_OPER, &ahcd->regs->control); - (void) admhc_readl(ahcd, &ahcd->regs->control); - if (!autostopped) - msleep (3); - - temp = ahcd->hc_control; - temp &= OHCI_CTRL_RWC; - temp |= OHCI_CONTROL_INIT | OHCI_USB_OPER; - ahcd->hc_control = temp; - admhc_writel(ahcd, temp, &ahcd->regs->control); - (void) admhc_readl(ahcd, &ahcd->regs->control); - - /* TRSMRCY */ - if (!autostopped) { - msleep (10); - spin_lock_irq (&ahcd->lock); - } - /* now ahcd->lock is always held and irqs are always disabled */ - - /* keep it alive for more than ~5x suspend + resume costs */ - ahcd->next_statechange = jiffies + STATECHANGE_DELAY; - - /* maybe turn schedules back on */ - enables = 0; - temp = 0; - if (!ahcd->ed_rm_list) { - if (ahcd->ed_controltail) { - admhc_writel(ahcd, - find_head (ahcd->ed_controltail)->dma, - &ahcd->regs->ed_controlhead); - enables |= OHCI_CTRL_CLE; - temp |= OHCI_CLF; - } - if (ahcd->ed_bulktail) { - admhc_writel(ahcd, find_head (ahcd->ed_bulktail)->dma, - &ahcd->regs->ed_bulkhead); - enables |= OHCI_CTRL_BLE; - temp |= OHCI_BLF; - } - } - if (hcd->self.bandwidth_isoc_reqs || hcd->self.bandwidth_int_reqs) - enables |= OHCI_CTRL_PLE|OHCI_CTRL_IE; - if (enables) { - admhc_dbg(ahcd, "restarting schedules ... %08x\n", enables); - ahcd->hc_control |= enables; - admhc_writel(ahcd, ahcd->hc_control, &ahcd->ahcd->regs->control); - if (temp) - admhc_writel(ahcd, temp, &ahcd->regs->cmdstatus); - (void) admhc_readl(ahcd, &ahcd->regs->control); - } - - return 0; -} - -static int admhc_bus_suspend(struct usb_hcd *hcd) -{ - struct admhcd *ahcd = hcd_to_admhcd(hcd); - int rc; - - spin_lock_irq(&ahcd->lock); - - if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))) - rc = -ESHUTDOWN; - else - rc = admhc_rh_suspend (ahcd, 0); - spin_unlock_irq(&ahcd->lock); - return rc; -} - -static int admhc_bus_resume(struct usb_hcd *hcd) -{ - struct admhcd *ahcd = hcd_to_admhcd(hcd); - int rc; - - if (time_before(jiffies, ahcd->next_statechange)) - msleep(5); - - spin_lock_irq (&ahcd->lock); - - if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))) - rc = -ESHUTDOWN; - else - rc = admhc_rh_resume (ahcd); - spin_unlock_irq(&ahcd->lock); - - /* poll until we know a device is connected or we autostop */ - if (rc == 0) - usb_hcd_poll_rh_status(hcd); - return rc; -} - -/* Carry out polling-, autostop-, and autoresume-related state changes */ -static int admhc_root_hub_state_changes(struct admhcd *ahcd, int changed, - int any_connected) -{ - int poll_rh = 1; - - switch (ahcd->hc_control & OHCI_CTRL_HCFS) { - - case OHCI_USB_OPER: - /* keep on polling until we know a device is connected - * and RHSC is enabled */ - if (!ahcd->autostop) { - if (any_connected || - !device_may_wakeup(&admhcd_to_hcd(ahcd) - ->self.root_hub->dev)) { - if (admhc_readl(ahcd, &ahcd->regs->int_enable) & - OHCI_INTR_RHSC) - poll_rh = 0; - } else { - ahcd->autostop = 1; - ahcd->next_statechange = jiffies + HZ; - } - - /* if no devices have been attached for one second, autostop */ - } else { - if (changed || any_connected) { - ahcd->autostop = 0; - ahcd->next_statechange = jiffies + - STATECHANGE_DELAY; - } else if (time_after_eq(jiffies, - ahcd->next_statechange) - && !ahcd->ed_rm_list - && !(ahcd->hc_control & - OHCI_SCHED_ENABLES)) { - ahcd_rh_suspend(ahcd, 1); - } - } - break; - - /* if there is a port change, autostart or ask to be resumed */ - case OHCI_USB_SUSPEND: - case OHCI_USB_RESUME: - if (changed) { - if (ahcd->autostop) - admhc_rh_resume(ahcd); - else - usb_hcd_resume_root_hub(admhcd_to_hcd(ahcd)); - } else { - /* everything is idle, no need for polling */ - poll_rh = 0; - } - break; - } - return poll_rh; -} - -#else /* CONFIG_PM */ - -static inline int admhc_rh_resume(struct admhcd *ahcd) -{ - return 0; -} - -/* Carry out polling-related state changes. - * autostop isn't used when CONFIG_PM is turned off. - */ -static int admhc_root_hub_state_changes(struct admhcd *ahcd, int changed, - int any_connected) -{ - int poll_rh = 1; - - /* keep on polling until RHSC is enabled */ - if (admhc_readl(ahcd, &ahcd->regs->int_enable) & ADMHC_INTR_INSM) - poll_rh = 0; - - return poll_rh; -} - -#endif /* CONFIG_PM */ - /*-------------------------------------------------------------------------*/ /* build "status change" packet (one or two bytes) from HC registers */ @@ -647,7 +293,7 @@ static int admhc_hub_control ( struct admhcd *ahcd = hcd_to_admhcd(hcd); int ports = hcd_to_bus (hcd)->root_hub->maxchild; u32 temp; - int retval = 0; + int ret = 0; if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))) return -ESHUTDOWN; @@ -753,7 +399,7 @@ static int admhc_hub_control ( &ahcd->regs->portstatus[wIndex]); break; case USB_PORT_FEAT_RESET: - retval = root_port_reset(ahcd, wIndex); + ret = root_port_reset(ahcd, wIndex); break; default: goto error; @@ -763,8 +409,8 @@ static int admhc_hub_control ( default: error: /* "protocol stall" on error */ - retval = -EPIPE; + ret = -EPIPE; } - return retval; + return ret; } diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120-mem.c b/target/linux/adm5120/files/drivers/usb/host/adm5120-mem.c index 3e9c2f0b9..fdacf7c11 100644 --- a/target/linux/adm5120/files/drivers/usb/host/adm5120-mem.c +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-mem.c @@ -27,7 +27,6 @@ static void admhc_hcd_init(struct admhcd *ahcd) { ahcd->next_statechange = jiffies; spin_lock_init(&ahcd->lock); - spin_lock_init(&ahcd->dma_lock); } /*-------------------------------------------------------------------------*/ diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120-pm.c b/target/linux/adm5120/files/drivers/usb/host/adm5120-pm.c new file mode 100644 index 000000000..bd99776cc --- /dev/null +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-pm.c @@ -0,0 +1,440 @@ +/* + * OHCI HCD (Host Controller Driver) for USB. + * + * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> + * (C) Copyright 2000-2004 David Brownell <dbrownell@users.sourceforge.net> + * + * This file is licenced under GPL + */ + +#define OHCI_SCHED_ENABLES \ + (OHCI_CTRL_CLE|OHCI_CTRL_BLE|OHCI_CTRL_PLE|OHCI_CTRL_IE) + +#ifdef CONFIG_PM +static int admhc_restart(struct admhcd *ahcd); + +static int admhc_rh_suspend(struct admhcd *ahcd, int autostop) +__releases(ahcd->lock) +__acquires(ahcd->lock) +{ + int status = 0; + + ahcd->hc_control = admhc_readl(ahcd, &ahcd->regs->control); + switch (ahcd->hc_control & OHCI_CTRL_HCFS) { + case OHCI_USB_RESUME: + admhc_dbg(ahcd, "resume/suspend?\n"); + ahcd->hc_control &= ~OHCI_CTRL_HCFS; + ahcd->hc_control |= OHCI_USB_RESET; + admhc_writel(ahcd, ahcd->hc_control, &ahcd->ahcd->regs->control); + (void) admhc_readl(ahcd, &ahcd->regs->control); + /* FALL THROUGH */ + case OHCI_USB_RESET: + status = -EBUSY; + admhc_dbg(ahcd, "needs reinit!\n"); + goto done; + case OHCI_USB_SUSPEND: + if (!ahcd->autostop) { + admhc_dbg(ahcd, "already suspended\n"); + goto done; + } + } + admhc_dbg(ahcd, "%s root hub\n", + autostop ? "auto-stop" : "suspend"); + + /* First stop any processing */ + if (!autostop && (ahcd->hc_control & OHCI_SCHED_ENABLES)) { + ahcd->hc_control &= ~OHCI_SCHED_ENABLES; + admhc_writel(ahcd, ahcd->hc_control, &ahcd->ahcd->regs->control); + ahcd->hc_control = admhc_readl(ahcd, &ahcd->regs->control); + admhc_writel(ahcd, OHCI_INTR_SF, &ahcd->regs->intrstatus); + + /* sched disables take effect on the next frame, + * then the last WDH could take 6+ msec + */ + admhc_dbg(ahcd, "stopping schedules ...\n"); + ahcd->autostop = 0; + spin_unlock_irq (&ahcd->lock); + msleep (8); + spin_lock_irq(&ahcd->lock); + } + dl_done_list (ahcd); + finish_unlinks (ahcd, admhc_frame_no(ahcd)); + + /* maybe resume can wake root hub */ + if (device_may_wakeup(&admhcd_to_hcd(ahcd)->self.root_hub->dev) || + autostop) + ahcd->hc_control |= OHCI_CTRL_RWE; + else { + admhc_writel(ahcd, OHCI_INTR_RHSC, &ahcd->regs->intrdisable); + ahcd->hc_control &= ~OHCI_CTRL_RWE; + } + + /* Suspend hub ... this is the "global (to this bus) suspend" mode, + * which doesn't imply ports will first be individually suspended. + */ + ahcd->hc_control &= ~OHCI_CTRL_HCFS; + ahcd->hc_control |= OHCI_USB_SUSPEND; + admhc_writel(ahcd, ahcd->hc_control, &ahcd->ahcd->regs->control); + (void) admhc_readl(ahcd, &ahcd->regs->control); + + /* no resumes until devices finish suspending */ + if (!autostop) { + ahcd->next_statechange = jiffies + msecs_to_jiffies (5); + ahcd->autostop = 0; + } + +done: + return status; +} + +static inline struct ed *find_head(struct ed *ed) +{ + /* for bulk and control lists */ + while (ed->ed_prev) + ed = ed->ed_prev; + return ed; +} + +/* caller has locked the root hub */ +static int admhc_rh_resume(struct admhcd *ahcd) +__releases(ahcd->lock) +__acquires(ahcd->lock) +{ + struct usb_hcd *hcd = admhcd_to_hcd (ahcd); + u32 temp, enables; + int status = -EINPROGRESS; + int autostopped = ahcd->autostop; + + ahcd->autostop = 0; + ahcd->hc_control = admhc_readl(ahcd, &ahcd->regs->control); + + if (ahcd->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) { + /* this can happen after resuming a swsusp snapshot */ + if (hcd->state == HC_STATE_RESUMING) { + admhc_dbg(ahcd, "BIOS/SMM active, control %03x\n", + ahcd->hc_control); + status = -EBUSY; + /* this happens when pmcore resumes HC then root */ + } else { + admhc_dbg(ahcd, "duplicate resume\n"); + status = 0; + } + } else switch (ahcd->hc_control & OHCI_CTRL_HCFS) { + case OHCI_USB_SUSPEND: + ahcd->hc_control &= ~(OHCI_CTRL_HCFS|OHCI_SCHED_ENABLES); + ahcd->hc_control |= OHCI_USB_RESUME; + admhc_writel(ahcd, ahcd->hc_control, &ahcd->ahcd->regs->control); + (void) admhc_readl(ahcd, &ahcd->regs->control); + admhc_dbg(ahcd, "%s root hub\n", + autostopped ? "auto-start" : "resume"); + break; + case OHCI_USB_RESUME: + /* HCFS changes sometime after INTR_RD */ + admhc_dbg(ahcd, "%swakeup root hub\n", + autostopped ? "auto-" : ""); + break; + case OHCI_USB_OPER: + /* this can happen after resuming a swsusp snapshot */ + admhc_dbg(ahcd, "snapshot resume? reinit\n"); + status = -EBUSY; + break; + default: /* RESET, we lost power */ + admhc_dbg(ahcd, "lost power\n"); + status = -EBUSY; + } + if (status == -EBUSY) { + if (!autostopped) { + spin_unlock_irq (&ahcd->lock); + (void) ahcd_init (ahcd); + status = admhc_restart (ahcd); + spin_lock_irq(&ahcd->lock); + } + return status; + } + if (status != -EINPROGRESS) + return status; + if (autostopped) + goto skip_resume; + spin_unlock_irq (&ahcd->lock); + + /* Some controllers (lucent erratum) need extra-long delays */ + msleep (20 /* usb 11.5.1.10 */ + 12 /* 32 msec counter */ + 1); + + temp = admhc_readl(ahcd, &ahcd->regs->control); + temp &= OHCI_CTRL_HCFS; + if (temp != OHCI_USB_RESUME) { + admhc_err (ahcd, "controller won't resume\n"); + spin_lock_irq(&ahcd->lock); + return -EBUSY; + } + + /* disable old schedule state, reinit from scratch */ + admhc_writel(ahcd, 0, &ahcd->regs->ed_controlhead); + admhc_writel(ahcd, 0, &ahcd->regs->ed_controlcurrent); + admhc_writel(ahcd, 0, &ahcd->regs->ed_bulkhead); + admhc_writel(ahcd, 0, &ahcd->regs->ed_bulkcurrent); + admhc_writel(ahcd, 0, &ahcd->regs->ed_periodcurrent); + admhc_writel(ahcd, (u32) ahcd->hcca_dma, &ahcd->ahcd->regs->hcca); + + /* Sometimes PCI D3 suspend trashes frame timings ... */ + periodic_reinit(ahcd); + + /* the following code is executed with ahcd->lock held and + * irqs disabled if and only if autostopped is true + */ + +skip_resume: + /* interrupts might have been disabled */ + admhc_writel(ahcd, OHCI_INTR_INIT, &ahcd->regs->int_enable); + if (ahcd->ed_rm_list) + admhc_writel(ahcd, OHCI_INTR_SF, &ahcd->regs->int_enable); + + /* Then re-enable operations */ + admhc_writel(ahcd, OHCI_USB_OPER, &ahcd->regs->control); + (void) admhc_readl(ahcd, &ahcd->regs->control); + if (!autostopped) + msleep (3); + + temp = ahcd->hc_control; + temp &= OHCI_CTRL_RWC; + temp |= OHCI_CONTROL_INIT | OHCI_USB_OPER; + ahcd->hc_control = temp; + admhc_writel(ahcd, temp, &ahcd->regs->control); + (void) admhc_readl(ahcd, &ahcd->regs->control); + + /* TRSMRCY */ + if (!autostopped) { + msleep (10); + spin_lock_irq(&ahcd->lock); + } + /* now ahcd->lock is always held and irqs are always disabled */ + + /* keep it alive for more than ~5x suspend + resume costs */ + ahcd->next_statechange = jiffies + STATECHANGE_DELAY; + + /* maybe turn schedules back on */ + enables = 0; + temp = 0; + if (!ahcd->ed_rm_list) { + if (ahcd->ed_controltail) { + admhc_writel(ahcd, + find_head (ahcd->ed_controltail)->dma, + &ahcd->regs->ed_controlhead); + enables |= OHCI_CTRL_CLE; + temp |= OHCI_CLF; + } + if (ahcd->ed_bulktail) { + admhc_writel(ahcd, find_head (ahcd->ed_bulktail)->dma, + &ahcd->regs->ed_bulkhead); + enables |= OHCI_CTRL_BLE; + temp |= OHCI_BLF; + } + } + if (hcd->self.bandwidth_isoc_reqs || hcd->self.bandwidth_int_reqs) + enables |= OHCI_CTRL_PLE|OHCI_CTRL_IE; + if (enables) { + admhc_dbg(ahcd, "restarting schedules ... %08x\n", enables); + ahcd->hc_control |= enables; + admhc_writel(ahcd, ahcd->hc_control, &ahcd->ahcd->regs->control); + if (temp) + admhc_writel(ahcd, temp, &ahcd->regs->cmdstatus); + (void) admhc_readl(ahcd, &ahcd->regs->control); + } + + return 0; +} + +static int admhc_bus_suspend(struct usb_hcd *hcd) +{ + struct admhcd *ahcd = hcd_to_admhcd(hcd); + int rc; + + spin_lock_irq(&ahcd->lock); + + if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))) + rc = -ESHUTDOWN; + else + rc = admhc_rh_suspend(ahcd, 0); + spin_unlock_irq(&ahcd->lock); + return rc; +} + +static int admhc_bus_resume(struct usb_hcd *hcd) +{ + struct admhcd *ahcd = hcd_to_admhcd(hcd); + int rc; + + if (time_before(jiffies, ahcd->next_statechange)) + msleep(5); + + spin_lock_irq(&ahcd->lock); + + if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))) + rc = -ESHUTDOWN; + else + rc = admhc_rh_resume(ahcd); + spin_unlock_irq(&ahcd->lock); + + /* poll until we know a device is connected or we autostop */ + if (rc == 0) + usb_hcd_poll_rh_status(hcd); + return rc; +} + +/* Carry out polling-, autostop-, and autoresume-related state changes */ +static int admhc_root_hub_state_changes(struct admhcd *ahcd, int changed, + int any_connected) +{ + int poll_rh = 1; + + switch (ahcd->hc_control & OHCI_CTRL_HCFS) { + + case OHCI_USB_OPER: + /* keep on polling until we know a device is connected + * and RHSC is enabled */ + if (!ahcd->autostop) { + if (any_connected || + !device_may_wakeup(&admhcd_to_hcd(ahcd) + ->self.root_hub->dev)) { + if (admhc_readl(ahcd, &ahcd->regs->int_enable) & + OHCI_INTR_RHSC) + poll_rh = 0; + } else { + ahcd->autostop = 1; + ahcd->next_statechange = jiffies + HZ; + } + + /* if no devices have been attached for one second, autostop */ + } else { + if (changed || any_connected) { + ahcd->autostop = 0; + ahcd->next_statechange = jiffies + + STATECHANGE_DELAY; + } else if (time_after_eq(jiffies, + ahcd->next_statechange) + && !ahcd->ed_rm_list + && !(ahcd->hc_control & + OHCI_SCHED_ENABLES)) { + ahcd_rh_suspend(ahcd, 1); + } + } + break; + + /* if there is a port change, autostart or ask to be resumed */ + case OHCI_USB_SUSPEND: + case OHCI_USB_RESUME: + if (changed) { + if (ahcd->autostop) + admhc_rh_resume(ahcd); + else + usb_hcd_resume_root_hub(admhcd_to_hcd(ahcd)); + } else { + /* everything is idle, no need for polling */ + poll_rh = 0; + } + break; + } + return poll_rh; +} + +/*-------------------------------------------------------------------------*/ + +/* must not be called from interrupt context */ +static int admhc_restart(struct admhcd *ahcd) +{ + int temp; + int i; + struct urb_priv *priv; + + /* mark any devices gone, so they do nothing till khubd disconnects. + * recycle any "live" eds/tds (and urbs) right away. + * later, khubd disconnect processing will recycle the other state, + * (either as disconnect/reconnect, or maybe someday as a reset). + */ + spin_lock_irq(&ahcd->lock); + admhc_disable(ahcd); + usb_root_hub_lost_power(admhcd_to_hcd(ahcd)->self.root_hub); + if (!list_empty(&ahcd->pending)) + admhc_dbg(ahcd, "abort schedule...\n"); + list_for_each_entry(priv, &ahcd->pending, pending) { + struct urb *urb = priv->td[0]->urb; + struct ed *ed = priv->ed; + + switch (ed->state) { + case ED_OPER: + ed->state = ED_UNLINK; + ed->hwINFO |= cpu_to_hc32(ahcd, ED_DEQUEUE); + ed_deschedule (ahcd, ed); + + ed->ed_next = ahcd->ed_rm_list; + ed->ed_prev = NULL; + ahcd->ed_rm_list = ed; + /* FALLTHROUGH */ + case ED_UNLINK: + break; + default: + admhc_dbg(ahcd, "bogus ed %p state %d\n", + ed, ed->state); + } + + spin_lock(&urb->lock); + urb->status = -ESHUTDOWN; + spin_unlock(&urb->lock); + } + finish_unlinks(ahcd, 0); + spin_unlock_irq(&ahcd->lock); + + /* paranoia, in case that didn't work: */ + + /* empty the interrupt branches */ + for (i = 0; i < NUM_INTS; i++) ahcd->load[i] = 0; + for (i = 0; i < NUM_INTS; i++) ahcd->hcca->int_table[i] = 0; + + /* no EDs to remove */ + ahcd->ed_rm_list = NULL; + + /* empty control and bulk lists */ + ahcd->ed_controltail = NULL; + ahcd->ed_bulktail = NULL; + + if ((temp = admhc_run(ahcd)) < 0) { + admhc_err(ahcd, "can't restart, %d\n", temp); + return temp; + } else { + /* here we "know" root ports should always stay powered, + * and that if we try to turn them back on the root hub + * will respond to CSC processing. + */ + i = ahcd->num_ports; + while (i--) + admhc_writel(ahcd, RH_PS_PSS, + &ahcd->regs->portstatus[i]); + admhc_dbg(ahcd, "restart complete\n"); + } + return 0; +} + +#else /* CONFIG_PM */ + +static inline int admhc_rh_resume(struct admhcd *ahcd) +{ + return 0; +} + +/* Carry out polling-related state changes. + * autostop isn't used when CONFIG_PM is turned off. + */ +static int admhc_root_hub_state_changes(struct admhcd *ahcd, int changed, + int any_connected) +{ + int poll_rh = 1; + + /* keep on polling until RHSC is enabled */ + if (admhc_readl(ahcd, &ahcd->regs->int_enable) & ADMHC_INTR_INSM) + poll_rh = 0; + + return poll_rh; +} + +#endif /* CONFIG_PM */ + diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120-q.c b/target/linux/adm5120/files/drivers/usb/host/adm5120-q.c index 2eafecc4f..a9e002e7d 100644 --- a/target/linux/adm5120/files/drivers/usb/host/adm5120-q.c +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-q.c @@ -153,7 +153,6 @@ static int ed_schedule(struct admhcd *ahcd, struct ed *ed) ed->state = ED_IDLE; - admhc_dma_lock(ahcd); ed->hwINFO &= ~cpu_to_hc32(ahcd, ED_SKIP); old_tail = ahcd->ed_tails[ed->type]; @@ -169,7 +168,6 @@ static int ed_schedule(struct admhcd *ahcd, struct ed *ed) old_tail->hwNextED = cpu_to_hc32(ahcd, ed->dma); ahcd->ed_tails[ed->type] = ed; - admhc_dma_unlock(ahcd); admhc_intr_enable(ahcd, ADMHC_INTR_SOFI); @@ -181,9 +179,7 @@ static void ed_deschedule(struct admhcd *ahcd, struct ed *ed) admhc_dump_ed(ahcd, "ED-DESCHED", ed, 0); /* remove this ED from the HC list */ - admhc_dma_lock(ahcd); ed->ed_prev->hwNextED = ed->hwNextED; - admhc_dma_unlock(ahcd); /* and remove it from our list */ ed->ed_prev->ed_next = ed->ed_next; @@ -203,9 +199,7 @@ static void ed_start_deschedule(struct admhcd *ahcd, struct ed *ed) { admhc_dump_ed(ahcd, "ED-UNLINK", ed, 0); - admhc_dma_lock(ahcd); ed->hwINFO |= cpu_to_hc32(ahcd, ED_SKIP); - admhc_dma_unlock(ahcd); ed->state = ED_UNLINK; @@ -573,11 +567,9 @@ static int ed_next_urb(struct admhcd *ahcd, struct ed *ed) up->td[up->td_cnt-1]->hwNextTD = cpu_to_hc32(ahcd, ed->dummy->td_dma); - admhc_dma_lock(ahcd); carry = hc32_to_cpup(ahcd, &ed->hwHeadP) & ED_C; ed->hwHeadP = cpu_to_hc32(ahcd, up->td[0]->td_dma | carry); ed->hwINFO &= ~cpu_to_hc32(ahcd, ED_SKIP); - admhc_dma_unlock(ahcd); return 1; } diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120.h b/target/linux/adm5120/files/drivers/usb/host/adm5120.h index 370722547..bdfdbc713 100644 --- a/target/linux/adm5120/files/drivers/usb/host/adm5120.h +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120.h @@ -369,8 +369,6 @@ struct urb_priv { struct admhcd { spinlock_t lock; - spinlock_t dma_lock; - u32 dma_state; /* * I/O memory used to communicate with the HC (dma-consistent) @@ -438,22 +436,6 @@ static inline struct usb_hcd *admhcd_to_hcd(const struct admhcd *ahcd) #define STUB_DEBUG_FILES #endif /* DEBUG */ -#if 0 -#define admhc_dbg(ahcd, fmt, args...) \ - dev_dbg(admhcd_to_hcd(ahcd)->self.controller , fmt , ## args ) -#define admhc_err(ahcd, fmt, args...) \ - dev_err(admhcd_to_hcd(ahcd)->self.controller , fmt , ## args ) -#define ahcd_info(ahcd, fmt, args...) \ - dev_info(admhcd_to_hcd(ahcd)->self.controller , fmt , ## args ) -#define admhc_warn(ahcd, fmt, args...) \ - dev_warn(admhcd_to_hcd(ahcd)->self.controller , fmt , ## args ) - -#ifdef ADMHC_VERBOSE_DEBUG -# define admhc_vdbg admhc_dbg -#else -# define admhc_vdbg(ahcd, fmt, args...) do { } while (0) -#endif -#else #define admhc_dbg(ahcd, fmt, args...) \ printk(KERN_DEBUG "adm5120-hcd: " fmt , ## args ) #define admhc_err(ahcd, fmt, args...) \ @@ -468,7 +450,6 @@ static inline struct usb_hcd *admhcd_to_hcd(const struct admhcd *ahcd) #else # define admhc_vdbg(ahcd, fmt, args...) do { } while (0) #endif -#endif /*-------------------------------------------------------------------------*/ @@ -564,14 +545,6 @@ static inline void admhc_writel(const struct admhcd *ahcd, #endif } -static inline void admhc_writel_flush(const struct admhcd *ahcd) -{ -#if 0 /* TODO: needed? */ - (void) admhc_readl(ahcd, &ahcd->regs->control); -#endif -} - - /*-------------------------------------------------------------------------*/ /* cpu to ahcd */ @@ -659,13 +632,12 @@ static inline void admhc_disable(struct admhcd *ahcd) } #define FI 0x2edf /* 12000 bits per frame (-1) */ -#define FSLDP(fi) (0x7fff & ((6 * ((fi) - 210)) / 7)) +#define FSLDP(fi) (0x7fff & ((6 * ((fi) - 1200)) / 7)) #define FIT ADMHC_SFI_FIT #define LSTHRESH 0x628 /* lowspeed bit threshold */ static inline void periodic_reinit(struct admhcd *ahcd) { - u32 fi = ahcd->fminterval & ADMHC_SFI_FI_MASK; u32 fit = admhc_readl(ahcd, &ahcd->regs->fminterval) & FIT; /* TODO: adjust FSLargestDataPacket value too? */ @@ -724,7 +696,7 @@ static inline void admhc_dma_enable(struct admhcd *ahcd) t |= ADMHC_HC_DMAE; admhc_writel(ahcd, t, &ahcd->regs->host_control); - admhc_dbg(ahcd,"DMA enabled\n"); + admhc_vdbg(ahcd,"DMA enabled\n"); } static inline void admhc_dma_disable(struct admhcd *ahcd) @@ -737,24 +709,5 @@ static inline void admhc_dma_disable(struct admhcd *ahcd) t &= ~ADMHC_HC_DMAE; admhc_writel(ahcd, t, &ahcd->regs->host_control); - admhc_dbg(ahcd,"DMA disabled\n"); -} - -static inline void admhc_dma_lock(struct admhcd *ahcd) -{ - spin_lock(ahcd->dma_lock); - - ahcd->dma_state = admhc_readl(ahcd, &ahcd->regs->host_control); - admhc_writel(ahcd, 0, &ahcd->regs->hosthead); - admhc_writel(ahcd, ahcd->dma_state & ~ADMHC_HC_DMAE, - &ahcd->regs->host_control); - admhc_dbg(ahcd,"DMA locked\n"); -} - -static inline void admhc_dma_unlock(struct admhcd *ahcd) -{ - admhc_writel(ahcd, (u32)ahcd->ed_head->dma, &ahcd->regs->hosthead); - admhc_writel(ahcd, ahcd->dma_state, &ahcd->regs->host_control); - admhc_dbg(ahcd,"DMA unlocked\n"); - spin_unlock(ahcd->dma_lock); + admhc_vdbg(ahcd,"DMA disabled\n"); } |