diff options
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/usbdebug.c | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/src/lib/usbdebug.c b/src/lib/usbdebug.c index 7e6d1c3556..a15253d412 100644 --- a/src/lib/usbdebug.c +++ b/src/lib/usbdebug.c @@ -192,6 +192,11 @@ retry: ret = -DBGP_ERR_BAD; } + /* Abort on STALL handshake for endpoint 0.*/ + else if ((lpid == USB_PID_STALL) && (pipe->endpoint == 0x0)) { + ret = -DBGP_ERR_BAD; + } + return ret; } @@ -307,10 +312,10 @@ static int dbgp_control_msg(struct ehci_dbg_port *ehci_debug, unsigned devnum, i u32 pids, addr, ctrl; struct usb_ctrlrequest req; int read; - int ret; + int ret, ret2; read = (requesttype & USB_DIR_IN) != 0; - if (size > (read ? DBGP_MAX_PACKET:0)) + if (size > DBGP_MAX_PACKET) return -1; /* Compute the control message */ @@ -329,9 +334,8 @@ static int dbgp_control_msg(struct ehci_dbg_port *ehci_debug, unsigned devnum, i ctrl = read32((unsigned long)&ehci_debug->control); ctrl = DBGP_LEN_UPDATE(ctrl, sizeof(req)); ctrl |= DBGP_OUT; - ctrl |= DBGP_GO; - /* Send the setup message */ + /* Setup stage */ dbgp_set_data(ehci_debug, &req, sizeof(req)); write32((unsigned long)&ehci_debug->address, addr); write32((unsigned long)&ehci_debug->pids, pids); @@ -339,8 +343,29 @@ static int dbgp_control_msg(struct ehci_dbg_port *ehci_debug, unsigned devnum, i if (ret < 0) return ret; - /* Read the result */ - ret = dbgp_bulk_read(ehci_debug, pipe, data, size, DBGP_LOOPS); + /* Data stage (optional) */ + if (read && size) + ret = dbgp_bulk_read(ehci_debug, pipe, data, size, DBGP_LOOPS); + else if (!read && size) + ret = dbgp_bulk_write(ehci_debug, pipe, data, size); + + /* Status stage in opposite direction */ + pipe->pid = USB_PID_DATA1; + ctrl = read32((unsigned long)&ehci_debug->control); + ctrl = DBGP_LEN_UPDATE(ctrl, 0); + if (read) { + pids = DBGP_PID_SET(pipe->pid, USB_PID_OUT); + ctrl |= DBGP_OUT; + } else { + pids = DBGP_PID_SET(pipe->pid, USB_PID_IN); + ctrl &= ~DBGP_OUT; + } + + write32((unsigned long)&ehci_debug->pids, pids); + ret2 = dbgp_wait_until_done(ehci_debug, pipe, ctrl, DBGP_LOOPS); + if (ret2 < 0) + return ret2; + return ret; } |