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add check device API for stack usage

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bool          usbh_device_is_plugged(tusb_handle_device_t const device_hdl);
This commit is contained in:
hathach
2013-01-26 02:25:56 +07:00
parent 7edda37518
commit d286c95765
3 changed files with 24 additions and 21 deletions
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9
tinyusb/class/hid_host.c
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@@ -61,8 +61,8 @@ tusb_error_t tusbh_hid_keyboard_get(tusb_handle_device_t const device_hdl, uint8
{
keyboard_interface_t *p_kbd;
ASSERT(usbh_device_is_plugged(device_hdl), TUSB_ERROR_INVALID_PARA);
ASSERT_PTR(report, TUSB_ERROR_INVALID_PARA);
ASSERT(device_hdl < TUSB_CFG_HOST_DEVICE_MAX, TUSB_ERROR_INVALID_PARA);
ASSERT(instance_num < TUSB_CFG_HOST_HID_KEYBOARD_NO_INSTANCES_PER_DEVICE, TUSB_ERROR_INVALID_PARA);
p_kbd = &keyboard_info_pool[device_hdl].instance[instance_num];
@@ -78,13 +78,14 @@ tusb_error_t tusbh_hid_keyboard_get(tusb_handle_device_t const device_hdl, uint8
uint8_t tusbh_hid_keyboard_no_instances(tusb_handle_device_t const device_hdl)
{
return 0;
ASSERT(usbh_device_is_plugged(device_hdl), 0);
return keyboard_info_pool[device_hdl].instance_count;
}
tusb_error_t class_hid_keyboard_install(uint8_t const dev_addr, uint8_t const *descriptor)
{
ASSERT(dev_addr < TUSB_CFG_HOST_DEVICE_MAX, TUSB_ERROR_INVALID_PARA);
ASSERT_PTR(descriptor, TUSB_ERROR_INVALID_PARA);
keyboard_info_pool[0].instance_count++;
return TUSB_ERROR_NONE;
}