diff options
Diffstat (limited to 'drivers/usb/gadget/fsl_updater.c')
| -rw-r--r-- | drivers/usb/gadget/fsl_updater.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/drivers/usb/gadget/fsl_updater.c b/drivers/usb/gadget/fsl_updater.c index cd8ba2480f6e..e0705b8d9c66 100644 --- a/drivers/usb/gadget/fsl_updater.c +++ b/drivers/usb/gadget/fsl_updater.c @@ -1,7 +1,7 @@ /* * Freescale UUT driver * - * Copyright 2008-2010 Freescale Semiconductor, Inc. + * Copyright 2008-2011 Freescale Semiconductor, Inc. * Copyright 2008-2009 Embedded Alley Solutions, Inc All Rights Reserved. */ @@ -377,13 +377,22 @@ static void utp_poll(struct fsg_dev *fsg) printk(KERN_WARNING "%s: exit with status %d\n", __func__, uud->data.status); UTP_SS_EXIT(fsg, uud->data.status); + } else if (uud->data.flags & UTP_FLAG_REPORT_BUSY) { + UTP_SS_BUSY(fsg, --ctx->counter); } else { - pr_debug("%s: pass\n", __func__); + printk("%s: pass returned.\n", __func__); UTP_SS_PASS(fsg); } utp_user_data_free(uud); } else { - pr_debug("%s: still busy...\n", __func__); + if (utp_context.cur_state & UTP_FLAG_DATA) { + if (count_list(&ctx->read) < 7) { + pr_debug("%s: pass returned in POLL stage. \n", __func__); + UTP_SS_PASS(fsg); + utp_context.cur_state = 0; + return; + } + } UTP_SS_BUSY(fsg, --ctx->counter); } } @@ -396,6 +405,7 @@ static int utp_exec(struct fsg_dev *fsg, struct utp_user_data *uud = NULL, *uud2r; struct utp_context *ctx = UTP_CTX(fsg); + ctx->counter = 0xFFFF; uud2r = utp_user_data_alloc(cmdsize + 1); uud2r->data.flags = UTP_FLAG_COMMAND; uud2r->data.payload = payload; @@ -436,14 +446,13 @@ static int utp_exec(struct fsg_dev *fsg, memcpy(ctx->buffer, uud->data.data, uud->data.bufsize); UTP_SS_SIZE(fsg, uud->data.bufsize); } else if (uud->data.flags & UTP_FLAG_REPORT_BUSY) { - ctx->counter = 0xFFFF; UTP_SS_BUSY(fsg, ctx->counter); } else if (uud->data.flags & UTP_FLAG_STATUS) { printk(KERN_WARNING "%s: exit with status %d\n", __func__, uud->data.status); UTP_SS_EXIT(fsg, uud->data.status); } else { - pr_debug("%s: pass\n", __func__); + pr_debug("%s: pass returned in EXEC stage. \n", __func__); UTP_SS_PASS(fsg); } utp_user_data_free(uud); @@ -531,8 +540,9 @@ static int utp_handle_message(struct fsg_dev *fsg, r = utp_do_read(fsg, UTP_CTX(fsg)->buffer, fsg->data_size); UTP_SS_PASS(fsg); break; - case UTP_PUT: /* data from host to device */ - pr_debug("%s: PUT, %d bytes\n", __func__, fsg->data_size); + case UTP_PUT: + utp_context.cur_state = UTP_FLAG_DATA; + pr_debug("%s: PUT, Received %d bytes\n", __func__, fsg->data_size);/* data from host to device */ uud2r = utp_user_data_alloc(fsg->data_size); uud2r->data.bufsize = fsg->data_size; uud2r->data.flags = UTP_FLAG_DATA; @@ -573,10 +583,12 @@ static int utp_handle_message(struct fsg_dev *fsg, UTP_SS_PASS(fsg); } #endif - UTP_SS_PASS(fsg); + if (count_list(&UTP_CTX(fsg)->read) < 7) { + utp_context.cur_state = 0; + UTP_SS_PASS(fsg); + } else + UTP_SS_BUSY(fsg, UTP_CTX(fsg)->counter); - wait_event_interruptible(UTP_CTX(fsg)->list_full_wq, - count_list(&UTP_CTX(fsg)->read) < 7); break; } |