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core/embed/usb: use all available usb endpoints and update the usb fifo sizing

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This commit is contained in:
mcudev 2021-03-06 18:37:54 -05:00 committed by Pavol Rusnak
parent 2852b947ec
commit 6137a55b06
3 changed files with 42 additions and 109 deletions
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129
core/embed/trezorhal/usbd_conf.c
View File

@ -407,103 +407,44 @@ void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
*/
USBD_StatusTypeDef USBD_LL_Init (USBD_HandleTypeDef *pdev)
{
#if defined(USE_USB_FS)
if (pdev->id == USB_PHY_FS_ID)
{
/*Set LL Driver parameters */
pcd_fs_handle.Instance = USB_OTG_FS;
pcd_fs_handle.Init.dev_endpoints = 4;
pcd_fs_handle.Init.use_dedicated_ep1 = 0;
pcd_fs_handle.Init.ep0_mps = 0x40;
pcd_fs_handle.Init.dma_enable = 0;
pcd_fs_handle.Init.low_power_enable = 0;
pcd_fs_handle.Init.phy_itface = PCD_PHY_EMBEDDED;
pcd_fs_handle.Init.Sof_enable = 1;
pcd_fs_handle.Init.speed = PCD_SPEED_FULL;
#if defined(MCU_SERIES_L4)
pcd_fs_handle.Init.lpm_enable = DISABLE;
pcd_fs_handle.Init.battery_charging_enable = DISABLE;
#endif
#if !defined(MICROPY_HW_USB_VBUS_DETECT_PIN)
pcd_fs_handle.Init.vbus_sensing_enable = 0; // No VBUS Sensing on USB0
#else
pcd_fs_handle.Init.vbus_sensing_enable = 1;
#endif
/* Link The driver to the stack */
pcd_fs_handle.pData = pdev;
pdev->pData = &pcd_fs_handle;
/*Initialize LL Driver */
HAL_PCD_Init(&pcd_fs_handle);
if (pdev->id == USB_PHY_HS_ID) {
/* Set LL Driver parameters */
pcd_hs_handle.Instance = USB_OTG_HS;
pcd_hs_handle.Init.dev_endpoints = 6;
pcd_hs_handle.Init.use_dedicated_ep1 = 0;
HAL_PCDEx_SetRxFiFo(&pcd_fs_handle, 0x80);
HAL_PCDEx_SetTxFiFo(&pcd_fs_handle, 0, 0x20);
HAL_PCDEx_SetTxFiFo(&pcd_fs_handle, 1, 0x40);
HAL_PCDEx_SetTxFiFo(&pcd_fs_handle, 2, 0x20);
HAL_PCDEx_SetTxFiFo(&pcd_fs_handle, 3, 0x40);
}
#endif
#if defined(USE_USB_HS)
if (pdev->id == USB_PHY_HS_ID)
{
#if defined(USE_USB_HS_IN_FS)
/*Set LL Driver parameters */
pcd_hs_handle.Instance = USB_OTG_HS;
pcd_hs_handle.Init.dev_endpoints = 4;
pcd_hs_handle.Init.use_dedicated_ep1 = 0;
pcd_hs_handle.Init.ep0_mps = 0x40;
pcd_hs_handle.Init.dma_enable = 0;
pcd_hs_handle.Init.low_power_enable = 0;
pcd_hs_handle.Init.phy_itface = PCD_PHY_EMBEDDED;
pcd_hs_handle.Init.Sof_enable = 1;
pcd_hs_handle.Init.speed = PCD_SPEED_HIGH_IN_FULL;
#if !defined(MICROPY_HW_USB_VBUS_DETECT_PIN)
pcd_hs_handle.Init.vbus_sensing_enable = 0; // No VBUS Sensing on USB0
#else
pcd_hs_handle.Init.vbus_sensing_enable = 1;
#endif
/* Link The driver to the stack */
pcd_hs_handle.pData = pdev;
pdev->pData = &pcd_hs_handle;
/*Initialize LL Driver */
HAL_PCD_Init(&pcd_hs_handle);
pcd_hs_handle.Init.ep0_mps = 0x40;
pcd_hs_handle.Init.dma_enable = 0;
pcd_hs_handle.Init.low_power_enable = 0;
HAL_PCDEx_SetRxFiFo(&pcd_hs_handle, 0x80);
HAL_PCDEx_SetTxFiFo(&pcd_hs_handle, 0, 0x20);
HAL_PCDEx_SetTxFiFo(&pcd_hs_handle, 1, 0x40);
HAL_PCDEx_SetTxFiFo(&pcd_hs_handle, 2, 0x20);
HAL_PCDEx_SetTxFiFo(&pcd_hs_handle, 3, 0x40);
#else // !defined(USE_USB_HS_IN_FS)
/*Set LL Driver parameters */
pcd_hs_handle.Instance = USB_OTG_HS;
pcd_hs_handle.Init.dev_endpoints = 6;
pcd_hs_handle.Init.use_dedicated_ep1 = 0;
pcd_hs_handle.Init.ep0_mps = 0x40;
pcd_hs_handle.Init.phy_itface = PCD_PHY_EMBEDDED;
pcd_hs_handle.Init.Sof_enable = 1;
pcd_hs_handle.Init.speed = PCD_SPEED_HIGH_IN_FULL;
// Trezor T hardware has PB13 connected to HS_VBUS
// but we leave vbus sensing disabled because
// we don't use it for anything. the device is a bus powered peripheral.
pcd_hs_handle.Init.vbus_sensing_enable = 0;
/* Link The driver to the stack */
pcd_hs_handle.pData = pdev;
pdev->pData = &pcd_hs_handle;
/* Initialize LL Driver */
HAL_PCD_Init(&pcd_hs_handle);
/* Be aware that enabling USB-DMA mode will result in data being sent only by
multiple of 4 packet sizes. This is due to the fact that USB-DMA does
not allow sending data from non word-aligned addresses.
For this specific application, it is advised to not enable this option
unless required. */
pcd_hs_handle.Init.dma_enable = 0;
pcd_hs_handle.Init.low_power_enable = 0;
pcd_hs_handle.Init.phy_itface = PCD_PHY_ULPI;
pcd_hs_handle.Init.Sof_enable = 1;
pcd_hs_handle.Init.speed = PCD_SPEED_HIGH;
pcd_hs_handle.Init.vbus_sensing_enable = 1;
/* Link The driver to the stack */
pcd_hs_handle.pData = pdev;
pdev->pData = &pcd_hs_handle;
/*Initialize LL Driver */
HAL_PCD_Init(&pcd_hs_handle);
HAL_PCDEx_SetRxFiFo(&pcd_hs_handle, 0x200);
HAL_PCDEx_SetTxFiFo(&pcd_hs_handle, 0, 0x80);
HAL_PCDEx_SetTxFiFo(&pcd_hs_handle, 1, 0x174);
#endif // !USE_USB_HS_IN_FS
}
#endif // USE_USB_HS
// the OTG_HS peripheral has a dedicated 4KiB data RAM from which we
// allocate an area for each transmit FIFO and the single shared receive FIFO.
// the configuration is in terms of 32-bit words, so we have 1024 32-bit words
// in this dedicated 4KiB data RAM to use. see section 35.10.1 and 34.11 in RM0090.
// the reference to section 34.11 is for the OTG_FS device, but the FIFO architecture
// diagram seems to apply similarly to the FIFO in the OTG_HS that we are using.
// USB packets that we deal with are 64 bytes in size which equates to 16 32-bit words.
// we size the transmit FIFO's equally and give the rest of the space to the receive FIFO.
const uint16_t transmit_fifo_size = 144; // 144 = 16 * 9 meaning that we give 9 packets of space for each transmit fifo
const uint16_t receive_fifo_zie = 160; // 160 = 1024 - 6 * 144 section 35.10.1 details what some of this is used for besides storing packets
HAL_PCDEx_SetRxFiFo(&pcd_hs_handle, receive_fifo_zie);
for (uint16_t i = 0; i < 6; i++) {
HAL_PCDEx_SetTxFiFo(&pcd_hs_handle, i, transmit_fifo_size);
}
}
return USBD_OK;
}

12
core/src/usb.py
View File

@ -17,18 +17,8 @@ if utils.EMULATOR:
_iface_iter = iter(range(5))
ENABLE_IFACE_DEBUG = __debug__
# change to False to enable VCP, see below
ENABLE_IFACE_WEBAUTHN = not utils.BITCOIN_ONLY
# We only have 10 available USB endpoints on real HW, of which 2 are taken up by the USB descriptor.
# iface_wire, iface_debug and iface_webauthn also consume 2 each, iface_vcp uses 3.
# That is a grand total of 11. That means that we can't enable everything at the same time.
# By default, iface_vcp is only enabled on bitcoin_only firmware, where iface_webauthn
# is disabled. Implementation-wise, we check if any of the previous ifaces is disabled
# in order to enable VCP.
ENABLE_IFACE_VCP = __debug__ and (
utils.EMULATOR or not ENABLE_IFACE_DEBUG or not ENABLE_IFACE_WEBAUTHN
)
ENABLE_IFACE_VCP = __debug__
# interface used for trezor wire protocol
id_wire = next(_iface_iter)

10
docs/core/build/embedded.md
View File

@ -57,12 +57,14 @@ You can also build firmware in debug mode to see log output or run tests.
PYOPT=0 make build_firmware
```
To get a full debug build, use:
```sh
make build_firmware BITCOIN_ONLY=0 PYOPT=0
```
You can then use `screen` to enter the device's console. Do not forget to add your user to the `dialout` group or use `sudo`. Note that both the group and the tty name can differ, use `ls -l` to find out proper names on your machine.
```sh
screen /dev/ttyACM0
```
Debug console via serial port is enabled only for the Bitcoin-only firmware.
If you need the console to debug non-Bitcoin features, please edit `src/usb.py`,
disable WebAuthn USB interface and enable the VCP USB interface.