void dfu_write_done( enum dfu_status err, struct dfu_ctx *ctx )
{
- ctx->status = err;
- if (ctx->status == DFU_STATUS_OK) {
- switch (ctx->state) {
- case DFU_STATE_dfuDNBUSY:
- ctx->state = DFU_STATE_dfuDNLOAD_IDLE;
- break;
- default:
- break;
- }
- } else {
- ctx->state = DFU_STATE_dfuERROR;
- }
+ ctx->status = err;
+ if (ctx->status == DFU_STATUS_OK) {
+ switch (ctx->state) {
+ case DFU_STATE_dfuDNBUSY:
+ ctx->state = DFU_STATE_dfuDNLOAD_IDLE;
+ break;
+ default:
+ break;
+ }
+ } else {
+ ctx->state = DFU_STATE_dfuERROR;
+ }
}
static void dfu_dnload_complete( void *buf, ssize_t len, void *cbdata )
{
- struct dfu_ctx *ctx = cbdata;
+ struct dfu_ctx *ctx = cbdata;
- if (len > 0)
- ctx->state = DFU_STATE_dfuDNBUSY;
- else
- ctx->state = DFU_STATE_dfuMANIFEST;
- ctx->status = ctx->finish_write(buf, ctx->off, len);
- ctx->off += len;
- ctx->len = len;
+ if (len > 0)
+ ctx->state = DFU_STATE_dfuDNBUSY;
+ else
+ ctx->state = DFU_STATE_dfuMANIFEST;
+ ctx->status = ctx->finish_write(buf, ctx->off, len);
+ ctx->off += len;
+ ctx->len = len;
- if (ctx->status != DFU_STATUS_async)
- dfu_write_done(ctx->status, ctx);
+ if (ctx->status != DFU_STATUS_async)
+ dfu_write_done(ctx->status, ctx);
- usb_handle_control_status(ctx->state == DFU_STATE_dfuERROR);
+ usb_handle_control_status(ctx->state == DFU_STATE_dfuERROR);
}
static void dfu_reset_system( void *buf, ssize_t len, void *cbdata )
{
- SOFTWARE_RESET();
+ SOFTWARE_RESET();
}
static int dfu_handle_control( struct usb_ctrl_req_t *req, void *data )
{
- struct dfu_ctx *ctx = data;
- int fail = 1;
-
- switch ((enum dfu_ctrl_req_code)req->bRequest) {
- case USB_CTRL_REQ_DFU_DNLOAD: {
- void *buf;
-
- switch (ctx->state) {
- case DFU_STATE_dfuIDLE:
- ctx->off = 0;
- break;
- case DFU_STATE_dfuDNLOAD_IDLE:
- break;
- default:
- goto err;
- }
-
- /**
- * XXX we are not allowed to STALL here, and we need to eat all transferred data.
- * better not allow setup_write to break the protocol.
- */
- ctx->status = ctx->setup_write(ctx->off, req->wLength, &buf);
- if (ctx->status != DFU_STATUS_OK) {
- ctx->state = DFU_STATE_dfuERROR;
- goto err_have_status;
- }
-
- if (req->wLength > 0)
- usb_ep0_rx(buf, req->wLength, dfu_dnload_complete, ctx);
- else
- dfu_dnload_complete(NULL, 0, ctx);
- goto out_no_status;
- }
- case USB_CTRL_REQ_DFU_GETSTATUS: {
- struct dfu_status_t st;
-
- st.bState = ctx->state;
- st.bStatus = ctx->status;
- st.bwPollTimeout = 1000; /* XXX */
- /**
- * If we're in DFU_STATE_dfuMANIFEST, we just finished
- * the download, and we're just about to send our last
- * status report. Once the report has been sent, go
- * and reset the system to put the new firmware into
- * effect.
- */
- usb_ep0_tx_cp(&st, sizeof(st), req->wLength, NULL, NULL);
- if (ctx->state == DFU_STATE_dfuMANIFEST) {
- usb_handle_control_status_cb(dfu_reset_system);
- goto out_no_status;
- }
- break;
- }
- case USB_CTRL_REQ_DFU_CLRSTATUS:
- ctx->state = DFU_STATE_dfuIDLE;
- ctx->status = DFU_STATUS_OK;
- break;
- case USB_CTRL_REQ_DFU_GETSTATE: {
- uint8_t st = ctx->state;
- usb_ep0_tx_cp(&st, sizeof(st), req->wLength, NULL, NULL);
- break;
- }
- case USB_CTRL_REQ_DFU_ABORT:
- switch (ctx->state) {
- case DFU_STATE_dfuIDLE:
- case DFU_STATE_dfuDNLOAD_IDLE:
- /* case DFU_STATE_dfuUPLOAD_IDLE: */
- ctx->state = DFU_STATE_dfuIDLE;
- break;
- default:
- goto err;
- }
- break;
- /* case USB_CTRL_REQ_DFU_UPLOAD: */
- default:
- return (0);
- }
-
- fail = 0;
- goto out;
+ struct dfu_ctx *ctx = data;
+ int fail = 1;
+
+ switch ((enum dfu_ctrl_req_code)req->bRequest) {
+ case USB_CTRL_REQ_DFU_DNLOAD: {
+ void *buf;
+
+ switch (ctx->state) {
+ case DFU_STATE_dfuIDLE:
+ ctx->off = 0;
+ break;
+ case DFU_STATE_dfuDNLOAD_IDLE:
+ break;
+ default:
+ goto err;
+ }
+
+ /**
+ * XXX we are not allowed to STALL here, and we need to eat all transferred data.
+ * better not allow setup_write to break the protocol.
+ */
+ ctx->status = ctx->setup_write(ctx->off, req->wLength, &buf);
+ if (ctx->status != DFU_STATUS_OK) {
+ ctx->state = DFU_STATE_dfuERROR;
+ goto err_have_status;
+ }
+
+ if (req->wLength > 0)
+ usb_ep0_rx(buf, req->wLength, dfu_dnload_complete, ctx);
+ else
+ dfu_dnload_complete(NULL, 0, ctx);
+ goto out_no_status;
+ }
+ case USB_CTRL_REQ_DFU_GETSTATUS: {
+ struct dfu_status_t st;
+
+ st.bState = ctx->state;
+ st.bStatus = ctx->status;
+ st.bwPollTimeout = 1000; /* XXX */
+ /**
+ * If we're in DFU_STATE_dfuMANIFEST, we just finished
+ * the download, and we're just about to send our last
+ * status report. Once the report has been sent, go
+ * and reset the system to put the new firmware into
+ * effect.
+ */
+ usb_ep0_tx_cp(&st, sizeof(st), req->wLength, NULL, NULL);
+ if (ctx->state == DFU_STATE_dfuMANIFEST) {
+ usb_handle_control_status_cb(dfu_reset_system);
+ goto out_no_status;
+ }
+ break;
+ }
+ case USB_CTRL_REQ_DFU_CLRSTATUS:
+ ctx->state = DFU_STATE_dfuIDLE;
+ ctx->status = DFU_STATUS_OK;
+ break;
+ case USB_CTRL_REQ_DFU_GETSTATE: {
+ uint8_t st = ctx->state;
+ usb_ep0_tx_cp(&st, sizeof(st), req->wLength, NULL, NULL);
+ break;
+ }
+ case USB_CTRL_REQ_DFU_ABORT:
+ switch (ctx->state) {
+ case DFU_STATE_dfuIDLE:
+ case DFU_STATE_dfuDNLOAD_IDLE:
+ /* case DFU_STATE_dfuUPLOAD_IDLE: */
+ ctx->state = DFU_STATE_dfuIDLE;
+ break;
+ default:
+ goto err;
+ }
+ break;
+ /* case USB_CTRL_REQ_DFU_UPLOAD: */
+ default:
+ return (0);
+ }
+
+ fail = 0;
+ goto out;
err:
- ctx->status = DFU_STATUS_errSTALLEDPKT;
+ ctx->status = DFU_STATUS_errSTALLEDPKT;
err_have_status:
- ctx->state = DFU_STATE_dfuERROR;
+ ctx->state = DFU_STATE_dfuERROR;
out:
- usb_handle_control_status(fail);
+ usb_handle_control_status(fail);
out_no_status:
- return (1);
+ return (1);
}
void dfu_init( dfu_setup_write_t setup_write, dfu_finish_write_t finish_write, struct dfu_ctx *ctx )
{
- ctx->state = DFU_STATE_dfuIDLE;
- ctx->setup_write = setup_write;
- ctx->finish_write = finish_write;
- usb_attach_function(&dfu_function, &ctx->header);
+ ctx->state = DFU_STATE_dfuIDLE;
+ ctx->setup_write = setup_write;
+ ctx->finish_write = finish_write;
+ usb_attach_function(&dfu_function, &ctx->header);
}
const struct usbd_function dfu_function = {
- .control = dfu_handle_control,
- .interface_count = USB_FUNCTION_DFU_IFACE_COUNT,
+ .control = dfu_handle_control,
+ .interface_count = USB_FUNCTION_DFU_IFACE_COUNT,
};
projects / kiibohd-controller.git / blobdiff