usb/musb/musb_gadget_ep0.c

243 				u16			csr;
266 					csr  = musb_readw(regs, MUSB_TXCSR);
267 					csr |= MUSB_TXCSR_CLRDATATOG |
269 					csr &= ~(MUSB_TXCSR_P_SENDSTALL |
272 					musb_writew(regs, MUSB_TXCSR, csr);
274 					csr  = musb_readw(regs, MUSB_RXCSR);
275 					csr |= MUSB_RXCSR_CLRDATATOG |
277 					csr &= ~(MUSB_RXCSR_P_SENDSTALL |
279 					musb_writew(regs, MUSB_RXCSR, csr);
403 				u16			csr;
421 					csr = musb_readw(regs, MUSB_TXCSR);
422 					if (csr & MUSB_TXCSR_FIFONOTEMPTY)
423 						csr |= MUSB_TXCSR_FLUSHFIFO;
424 					csr |= MUSB_TXCSR_P_SENDSTALL
427 					musb_writew(regs, MUSB_TXCSR, csr);
429 					csr = musb_readw(regs, MUSB_RXCSR);
430 					csr |= MUSB_RXCSR_P_SENDSTALL
434 					musb_writew(regs, MUSB_RXCSR, csr);
465 	u16			count, csr;
487 		csr = MUSB_CSR0_P_SVDRXPKTRDY;
490 			csr |= MUSB_CSR0_P_DATAEND;
494 		csr = MUSB_CSR0_P_SVDRXPKTRDY | MUSB_CSR0_P_SENDSTALL;
501 		musb->ackpend = csr;
508 	musb_writew(regs, MUSB_CSR0, csr);
522 	u16			csr = MUSB_CSR0_TXPKTRDY;
546 		csr |= MUSB_CSR0_P_DATAEND;
556 		musb->ackpend = csr;
565 	musb_writew(regs, MUSB_CSR0, csr);
643 	u16		csr;
650 	csr = musb_readw(regs, MUSB_CSR0);
653 	musb_dbg(musb, "csr %04x, count %d, ep0stage %s",
654 			csr, len, decode_ep0stage(musb->ep0_state));
656 	if (csr & MUSB_CSR0_P_DATAEND) {
665 	if (csr & MUSB_CSR0_P_SENTSTALL) {
667 				csr & ~MUSB_CSR0_P_SENTSTALL);
670 		csr = musb_readw(regs, MUSB_CSR0);
674 	if (csr & MUSB_CSR0_P_SETUPEND) {
689 		csr = musb_readw(regs, MUSB_CSR0);
701 		if ((csr & MUSB_CSR0_TXPKTRDY) == 0) {
709 		if (csr & MUSB_CSR0_RXPKTRDY) {
754 		if (csr & MUSB_CSR0_RXPKTRDY)
774 		if (csr & MUSB_CSR0_RXPKTRDY) {
842 			musb_dbg(musb, "handled %d, csr %04x, ep0stage %s",
843 				handled, csr,
997 	u16			csr;
1016 	csr = musb->ackpend;
1026 		csr = musb_readw(regs, MUSB_CSR0);
1035 		csr |= MUSB_CSR0_P_SENDSTALL;
1036 		musb_writew(regs, MUSB_CSR0, csr);