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path: root/target/linux/adm5120-2.6/files/drivers/usb/host/adm5120-hcd.c
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Diffstat (limited to 'target/linux/adm5120-2.6/files/drivers/usb/host/adm5120-hcd.c')
-rw-r--r--target/linux/adm5120-2.6/files/drivers/usb/host/adm5120-hcd.c162
1 files changed, 103 insertions, 59 deletions
diff --git a/target/linux/adm5120-2.6/files/drivers/usb/host/adm5120-hcd.c b/target/linux/adm5120-2.6/files/drivers/usb/host/adm5120-hcd.c
index bd6f7a0aa1..91ac431dab 100644
--- a/target/linux/adm5120-2.6/files/drivers/usb/host/adm5120-hcd.c
+++ b/target/linux/adm5120-2.6/files/drivers/usb/host/adm5120-hcd.c
@@ -34,61 +34,63 @@ MODULE_AUTHOR("Jeroen Vreeken (pe1rxq@amsat.org)");
#define PFX "adm5120-hcd: "
#define ADMHCD_REG_CONTROL 0x00
+#define ADMHCD_SW_RESET 0x00000008 /* Reset */
+#define ADMHCD_DMAA 0x00000004 /* DMA arbitration control */
+#define ADMHCD_SW_INTREQ 0x00000002 /* request software int */
+#define ADMHCD_HOST_EN 0x00000001 /* Host enable */
#define ADMHCD_REG_INTSTATUS 0x04
+#define ADMHCD_INT_ACT 0x80000000 /* Interrupt active */
+#define ADMHCD_INT_FATAL 0x40000000 /* Fatal interrupt */
+#define ADMHCD_INT_SW 0x20000000 /* software interrupt */
+#define ADMHCD_INT_TD 0x00100000 /* TD completed */
+#define ADMHCD_FNO 0x00000800 /* Frame number overaflow */
+#define ADMHCD_SO 0x00000400 /* Scheduling overrun */
+#define ADMHCD_INSMI 0x00000200 /* Root hub status change */
+#define ADMHCD_BABI 0x00000100 /* Babble detected, host mode */
+#define ADMHCD_RESI 0x00000020 /* Resume detected */
+#define ADMHCD_SOFI 0x00000010 /* SOF transmitted/received, host mode */
#define ADMHCD_REG_INTENABLE 0x08
+#define ADMHCD_INT_EN 0x80000000 /* Interrupt enable */
+#define ADMHCD_INTMASK 0x00000001 /* Interrupt mask */
#define ADMHCD_REG_HOSTCONTROL 0x10
+#define ADMHCD_DMA_EN 0x00000004 /* USB host DMA enable */
+#define ADMHCD_STATE_RST 0x00000000 /* bus state reset */
+#define ADMHCD_STATE_RES 0x00000001 /* bus state resume */
+#define ADMHCD_STATE_OP 0x00000002 /* bus state operational */
+#define ADMHCD_STATE_SUS 0x00000003 /* bus state suspended */
#define ADMHCD_REG_FMINTERVAL 0x18
#define ADMHCD_REG_FMNUMBER 0x1c
#define ADMHCD_REG_LSTHRESH 0x70
#define ADMHCD_REG_RHDESCR 0x74
+#define ADMHCD_CRWE 0x20000000 /* Clear wakeup enable */
+#define ADMHCD_DRWE 0x10000000 /* Device remote wakeup enable */
+#define ADMHCD_HW_OCIC 0x08000000 /* Over current indication change */
+#define ADMHCD_LPSC 0x04000000 /* Local power switch change */
+#define ADMHCD_OCI 0x02000000 /* Over current indication */
+#define ADMHCD_LPS 0x01000000 /* Local power switch/global power switch */
+#define ADMHCD_NOCP 0x00000800 /* No over current protect mode */
+#define ADMHCD_OPCM 0x00000400 /* Over current protect mode */
+#define ADMHCD_NPS 0x00000200 /* No Power Switch */
+#define ADMHCD_PSM 0x00000100 /* Power switch mode */
#define ADMHCD_REG_PORTSTATUS0 0x78
+#define ADMHCD_CCS 0x00000001 /* current connect status */
+#define ADMHCD_PES 0x00000002 /* port enable status */
+#define ADMHCD_PSS 0x00000004 /* port suspend status */
+#define ADMHCD_POCI 0x00000008 /* port overcurrent indicator */
+#define ADMHCD_PRS 0x00000010 /* port reset status */
+#define ADMHCD_PPS 0x00000100 /* port power status */
+#define ADMHCD_LSDA 0x00000200 /* low speed device attached */
+#define ADMHCD_CSC 0x00010000 /* connect status change */
+#define ADMHCD_PESC 0x00020000 /* enable status change */
+#define ADMHCD_PSSC 0x00040000 /* suspend status change */
+#define ADMHCD_OCIC 0x00080000 /* overcurrent change*/
+#define ADMHCD_PRSC 0x00100000 /* reset status change */
#define ADMHCD_REG_PORTSTATUS1 0x7c
#define ADMHCD_REG_HOSTHEAD 0x80
#define ADMHCD_NUMPORTS 2
-#define ADMHCD_HOST_EN 0x00000001 /* Host enable */
-#define ADMHCD_SW_INTREQ 0x00000002 /* request software int */
-#define ADMHCD_SW_RESET 0x00000008 /* Reset */
-
-#define ADMHCD_INT_TD 0x00100000 /* TD completed */
-#define ADMHCD_INT_SW 0x20000000 /* software interrupt */
-#define ADMHCD_INT_FATAL 0x40000000 /* Fatal interrupt */
-#define ADMHCD_INT_ACT 0x80000000 /* Interrupt active */
-
-#define ADMHCD_STATE_RST 0x00000000 /* bus state reset */
-#define ADMHCD_STATE_RES 0x00000001 /* bus state resume */
-#define ADMHCD_STATE_OP 0x00000002 /* bus state operational */
-#define ADMHCD_STATE_SUS 0x00000003 /* bus state suspended */
-#define ADMHCD_DMA_EN 0x00000004 /* enable dma engine */
-
-#define ADMHCD_RST_ST 0x00 /* USB reset state */
-#define ADMHCD_RSM_ST 0x01 /* USB resume state */
-#define ADMHCD_OPR_ST 0x10 /* USB operational state */
-#define ADMHCD_SUS_ST 0x11 /* USB suspend state */
-
-#define ADMHCD_NPS 0x00000200 /* No Power Switch */
-#define ADMHCD_PSM 0x00000100 /* Power switch mode */
-#define ADMHCD_OPCM 0x00000400 /* Over current protect mode */
-#define ADMHCD_NOCP 0x00000800 /* No over current protect mode */
-#define ADMHCD_LPSC 0x04000000 /* Local power switch change */
-#define ADMHCD_LPS 0x01000000 /* Local power switch/global power switch */
-
-#define ADMHCD_CCS 0x00000001 /* current connect status */
-#define ADMHCD_PES 0x00000002 /* port enable status */
-#define ADMHCD_PSS 0x00000004 /* port suspend status */
-#define ADMHCD_POCI 0x00000008 /* port overcurrent indicator */
-#define ADMHCD_PRS 0x00000010 /* port reset status */
-#define ADMHCD_PPS 0x00000100 /* port power status */
-#define ADMHCD_LSDA 0x00000200 /* low speed device attached */
-#define ADMHCD_CSC 0x00010000 /* connect status change */
-#define ADMHCD_PESC 0x00020000 /* enable status change */
-#define ADMHCD_PSSC 0x00040000 /* suspend status change */
-#define ADMHCD_OCIC 0x00080000 /* overcurrent change*/
-#define ADMHCD_PRSC 0x00100000 /* reset status change */
-
-
struct admhcd_ed {
/* Don't change first four, they used for DMA */
u32 control;
@@ -700,6 +702,8 @@ static int admhcd_start(struct usb_hcd *hcd)
struct admhcd *ahcd = hcd_to_admhcd(hcd);
unsigned long flags;
+ printk(KERN_DEBUG PFX "calling admhcd_start\n");
+
spin_lock_irqsave(&ahcd->lock, flags);
/* Initialise the HCD registers */
@@ -708,8 +712,12 @@ static int admhcd_start(struct usb_hcd *hcd)
admhcd_reg_set(ahcd, ADMHCD_REG_CONTROL, ADMHCD_SW_RESET);
- while (admhcd_reg_get(ahcd, ADMHCD_REG_CONTROL) & ADMHCD_SW_RESET)
+ while (admhcd_reg_get(ahcd, ADMHCD_REG_CONTROL) & ADMHCD_SW_RESET) {
+ printk(KERN_WARNING PFX "waiting for reset to complete\n");
mdelay(1);
+ }
+
+ hcd->uses_new_polling = 1;
/* Enable USB host mode */
admhcd_reg_set(ahcd, ADMHCD_REG_CONTROL, ADMHCD_HOST_EN);
@@ -725,13 +733,17 @@ static int admhcd_start(struct usb_hcd *hcd)
admhcd_reg_set(ahcd, ADMHCD_REG_INTSTATUS,
ADMHCD_INT_ACT | ADMHCD_INT_FATAL | ADMHCD_INT_SW | ADMHCD_INT_TD);
+ /* Power on all ports */
admhcd_reg_set(ahcd, ADMHCD_REG_RHDESCR, ADMHCD_NPS | ADMHCD_LPSC);
- admhcd_reg_set(ahcd, ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP);
+ /* HCD is now operationnal */
+ admhcd_reg_set(ahcd, ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP);
hcd->state = HC_STATE_RUNNING;
spin_unlock_irqrestore(&ahcd->lock, flags);
+
+ printk(KERN_DEBUG PFX "returning 0 from admhcd_start\n");
return 0;
}
@@ -776,7 +788,7 @@ static int admhcd_reset(struct usb_hcd *hcd)
while (time_before_eq(jiffies, t)) {
msleep(4);
spin_lock_irq(&ahcd->lock);
- val = admhcd_reg_get(ahcd, ADMHCD_REG_HOSTCONTROL) & ADMHCD_OPR_ST;
+ val = admhcd_reg_get(ahcd, ADMHCD_REG_HOSTCONTROL) & ADMHCD_STATE_RST;
spin_unlock_irq(&ahcd->lock);
if (val)
break;
@@ -814,7 +826,7 @@ static struct hc_driver adm5120_hc_driver = {
.product_desc = "ADM5120 HCD",
.hcd_priv_size = sizeof(struct admhcd),
.irq = adm5120hcd_irq,
- .flags = HCD_MEMORY|HCD_USB11,
+ .flags = HCD_USB11,
.urb_enqueue = admhcd_urb_enqueue,
.urb_dequeue = admhcd_urb_dequeue,
.endpoint_disable = admhcd_endpoint_disable,
@@ -838,54 +850,64 @@ static int __init adm5120hcd_probe(struct platform_device *pdev)
int err = 0, irq;
if (pdev->num_resources < 2) {
+ printk(KERN_WARNING PFX "not enough resources\n");
err = -ENODEV;
goto out;
}
+ irq = platform_get_irq(pdev, 0);
+ data = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
if (pdev->dev.dma_mask) {
- printk(KERN_DEBUG "no we won't dma\n");
+ printk(KERN_DEBUG PFX "no we won't dma\n");
return -EINVAL;
}
- irq = platform_get_irq(pdev, 0);
- data = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
if (!data || irq < 0) {
+ printk(KERN_DEBUG PFX "either IRQ or data resource is invalid\n");
err = -ENODEV;
goto out;
}
if (!request_mem_region(data->start, 2, hcd_name)) {
+ printk(KERN_DEBUG PFX "cannot request memory regions for the data resource\n");
err = -EBUSY;
- goto out_unmap;
+ goto out;
}
data_reg = ioremap(data->start, resource_len(data));
+
if (data_reg == NULL) {
+ printk(KERN_DEBUG PFX "unable to ioremap\n");
err = -ENOMEM;
goto out_mem;
}
hcd = usb_create_hcd(&adm5120_hc_driver, &pdev->dev, pdev->dev.bus_id);
- if (!hcd)
+ if (!hcd) {
+ printk(KERN_DEBUG PFX "unable to create the hcd\n");
+ err = -ENOMEM;
goto out_mem;
+ }
hcd->rsrc_start = data->start;
- hcd->rsrc_len = resource_len(data);
- hcd->regs = (u32)data_reg;
+ hcd->rsrc_len = resource_len(data);
+ hcd->regs = data_reg;
+
ahcd = hcd_to_admhcd(hcd);
+ ahcd->data_reg = data_reg;
+ ahcd->base = (u32)data_reg;
spin_lock_init(&ahcd->lock);
INIT_LIST_HEAD(&ahcd->async);
- ahcd->data_reg = data_reg;
- ahcd->base = (u32)data_reg;
-
hcd->product_desc = "ADM5120 HCD";
err = usb_add_hcd(hcd, irq, IRQF_DISABLED);
- if (err)
+ if (err) {
+ printk(KERN_DEBUG PFX "unable to add hcd\n");
goto out_dev;
+ }
return 0;
@@ -899,6 +921,25 @@ out:
return err;
}
+#ifdef CONFIG_PM
+static int adm5120hcd_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ pdev-dev.power.power_state = state;
+ mdelay(1);
+ return 0;
+}
+
+static int adm5120hcd_resume(struct platform_device *pdev, pm_message_t state)
+{
+ pdev->dev.power.power_state = PMSG_ON;
+ mdelay(1);
+ return 0;
+}
+#else
+#define adm5120hcd_suspend NULL
+#define adm5120hcd_resume NULL
+#endif
+
static int __init_or_module adm5120hcd_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
@@ -916,8 +957,10 @@ static int __init_or_module adm5120hcd_remove(struct platform_device *pdev)
static struct platform_driver adm5120hcd_driver = {
.probe = adm5120hcd_probe,
.remove = adm5120hcd_remove,
+ .suspend = adm5120hcd_suspend,
+ .remove = adm5120hcd_resume,
.driver = {
- .name = "adm5120-usbc",
+ .name = (char *)hcd_name,
.owner = THIS_MODULE,
},
};
@@ -944,8 +987,9 @@ static int __init adm5120hcd_init(void)
}
static void __exit adm5120hcd_exit(void)
-{
+{
platform_driver_unregister(&adm5120hcd_driver);
+ printk(KERN_INFO PFX "driver unregistered\n");
}
module_init(adm5120hcd_init);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 13:33:50 +0000