This patch adds a new module parameter to dummy_hcd: is_high_speed
When set to false the connected device will be forced to operate in FS
mode. The default of this parameter is true.
Signed-off-by: Tatyana Brokhman tlin...@codeaurora.org
---
drivers/usb/gadget/dummy_hcd.c | 20 +++-
1 files changed, 15 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index f0cdd13..8077811 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -72,13 +72,17 @@ MODULE_LICENSE (GPL);
struct dummy_hcd_module_parameters {
bool is_super_speed;
+ bool is_high_speed;
};
static struct dummy_hcd_module_parameters mod_data = {
- .is_super_speed = false
+ .is_super_speed = false,
+ .is_high_speed = true,
};
module_param_named(is_super_speed, mod_data.is_super_speed, bool, S_IRUGO);
MODULE_PARM_DESC(is_super_speed, true to simulate SuperSpeed connection);
+module_param_named(is_high_speed, mod_data.is_high_speed, bool, S_IRUGO);
+MODULE_PARM_DESC(is_high_speed, true to simulate HighSpeed connection);
/*-*/
/* gadget side driver data structres */
@@ -904,12 +908,15 @@ usb_gadget_probe_driver(struct usb_gadget_driver *driver,
dum-gadget.ep0 = dum-ep [0].ep;
if (mod_data.is_super_speed)
dum-gadget.speed = driver-speed;
+ else if (mod_data.is_high_speed)
+ dum-gadget.speed = min_t(u8, USB_SPEED_HIGH, driver-speed);
else
- dum-gadget.speed = min((u8)USB_SPEED_HIGH, (u8)driver-speed);
+ dum-gadget.speed = USB_SPEED_FULL;
if (dum-gadget.speed driver-speed)
- dev_dbg(udc_dev(dum), This device can perform faster if
- you connect it to a
- SupeSpeed port...\n);
+ dev_dbg(udc_dev(dum), This device can perform faster
+if you connect it to a %s port...\n,
+ (driver-speed == USB_SPEED_SUPER ?
+SuperSpeed : HighSpeed));
if (dum-gadget.speed == USB_SPEED_SUPER) {
for (i = 0; i DUMMY_ENDPOINTS; i++)
@@ -2417,6 +2424,9 @@ static int __init init (void)
if (usb_disabled ())
return -ENODEV;
+ if (!mod_data.is_high_speed mod_data.is_super_speed)
+ return -EINVAL;
+
the_hcd_pdev = platform_device_alloc(driver_name, -1);
if (!the_hcd_pdev)
return retval;
--
1.7.3.3
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
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