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usb: dwc_otg: add attribute to start usb eye-pattern test

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lyz
2014-10-28 16:54:25 +08:00
parent e9390e5ce8
commit 2b322816e7
1 changed files with 84 additions and 0 deletions
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84
drivers/usb/dwc_otg_310/dwc_otg_attr.c
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@@ -327,6 +327,9 @@
#include "dwc_otg_core_if.h"
#include "dwc_otg_pcd_if.h"
#include "dwc_otg_hcd_if.h"
#include "dwc_otg_regs.h"
#include "dwc_otg_cil.h"
#include "usbdev_rk.h"
/*
* MACROs for defining sysfs attribute
@@ -1075,6 +1078,85 @@ DEVICE_ATTR(sleep_status, S_IRUGO | S_IWUSR, sleepstatus_show,
#endif /* CONFIG_USB_DWC_OTG_LPM_ENABLE */
static int test_sq(dwc_otg_core_if_t *core_if)
{
hprt0_data_t hprt0 = { .d32 = 0 };
dctl_data_t dctl = { .d32 = 0 };
dsts_data_t dsts = { .d32 = 0 };
/**
* Step.1 check current mode
* Step.2 check connection
* Step.3 enter test packet mode
*/
if (dwc_otg_is_host_mode(core_if)) {
DWC_PRINTF("Host Mode\n");
hprt0.d32 = DWC_READ_REG32(core_if->host_if->hprt0);
if (hprt0.b.prtena && !hprt0.b.prtsusp &&
hprt0.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED) {
hprt0.d32 = 0;
hprt0.b.prttstctl = 0x4;
DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
DWC_PRINTF("Start packet test\n");
return 0;
} else
DWC_PRINTF("Invalid connect status HPRT0 = 0x%08x\n",
hprt0.d32);
} else {
DWC_PRINTF("Device Mode\n");
dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts);
if (!dsts.b.suspsts &&
dsts.b.enumspd == DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ) {
dctl.b.tstctl = 0x4;
DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl,
dctl.d32);
DWC_PRINTF("Start packet test\n");
return 0;
} else
DWC_PRINTF("Invalid connect status DSTS = 0x%08x\n",
dsts.d32);
}
return -1;
}
/**
* Show the usage of usb controler test_sq attribute.
*/
static ssize_t test_sq_show(struct device *_dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf,
"USAGE : echo anything to \"test\" to start test packet pattern\n");
}
static ssize_t test_sq_store(struct device *_dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
dwc_otg_device_t *otg_dev = _dev->platform_data;
struct dwc_otg_platform_data *pldata = otg_dev->pldata;
if (pldata->phy_status == USB_PHY_SUSPEND) {
DWC_PRINTF("Invalid status : SUSPEND\n");
return -EBUSY;
}
if (test_sq(otg_dev->core_if))
return -EBUSY;
else
return count;
}
DEVICE_ATTR(test_sq, S_IWUSR | S_IRUSR, test_sq_show, test_sq_store);
/**@}*/
/**
@@ -1118,6 +1200,7 @@ void dwc_otg_attr_create(struct platform_device *dev)
error = device_create_file(&dev->dev, &dev_attr_besl_reject);
error = device_create_file(&dev->dev, &dev_attr_hird_thres);
#endif
error = device_create_file(&dev->dev, &dev_attr_test_sq);
}
/**
@@ -1159,4 +1242,5 @@ void dwc_otg_attr_remove(struct platform_device *dev)
device_remove_file(&dev->dev, &dev_attr_besl_reject);
device_remove_file(&dev->dev, &dev_attr_hird_thres);
#endif
device_remove_file(&dev->dev, &dev_attr_test_sq);
}