474293a12b
Port USB driver from Sansa Connect Linux kernel sources. The device successfully enumerates and responds to SCSI commands but actual disk access does not work. The SCSI response sent to host mentions that both internal storage and microsd card are not present. Change-Id: Ic6c07da12382c15c0b069f23a75f7df9765b7525
144 lines
4.5 KiB
C
144 lines
4.5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id: $
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*
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* Copyright (C) 2021 by Tomasz Moń
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* Copied with minor modifications from Sansa Connect Linux driver
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* Copyright (c) 2005 Zermatt Systems, Inc.
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* Written by: Ben Bostwick
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef TNETV105_CPPI_H
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#define TNETV105_CPPI_H
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#include <stdint.h>
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typedef uint32_t dma_addr_t;
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#define USB_CPPI_LOGGING 0
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#define EAGAIN 11 /* Try again */
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#define CPPI_RX_NUM_BUFS 129
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#define CPPI_INFO_MEM_SIZE (2 * CPPI_RX_NUM_BUFS * sizeof(cppi_rcb) + 4 * 2 * sizeof(cppi_tcb))
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#define CPPI_NUM_CHANNELS 4
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#define CPPI_MAX_FRAG 0xFE00
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struct cppi_info;
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typedef struct
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{
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uint32_t HNext; /*< Hardware's pointer to next buffer descriptor */
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uint32_t BufPtr; /*< Pointer to the data buffer */
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uint32_t Off_BLen; /*< Contains buffer offset and buffer length */
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uint32_t mode; /*< SOP, EOP, Ownership, EOQ, Teardown, Q Starv, Length */
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void *Next;
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void *Eop;
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dma_addr_t dma_handle;
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uint32_t dummy;
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} cppi_tcb;
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typedef struct
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{
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uint32_t HNext; /*< Hardware's pointer to next buffer descriptor */
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uint32_t BufPtr; /*< Pointer to the data buffer */
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uint32_t Off_BLen; /*< Contains buffer offset and buffer length */
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uint32_t mode; /*< SOP, EOP, Ownership, EOQ, Teardown Complete bits */
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void *Next;
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void *Eop;
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dma_addr_t dma_handle;
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uint32_t fake_bytes;
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} cppi_rcb;
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typedef struct cppi_txcntl
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{
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cppi_tcb *TcbPool;
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cppi_tcb *TxActQueueHead;
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cppi_tcb *TxActQueueTail;
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uint32_t TxActQueueCount;
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uint32_t TxActive;
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cppi_tcb *LastTcbProcessed;
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char *TcbStart;
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dma_addr_t tcb_start_dma_addr;
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int TxNumBuffers;
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#ifdef _CPHAL_STATS
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uint32_t TxMisQCnt;
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uint32_t TxEOQCnt;
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uint32_t TxPacketsServiced;
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uint32_t TxMaxServiced;
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uint32_t NumTxInt;
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#endif
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} cppi_txcntl;
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typedef struct cppi_rxcntl
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{
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cppi_rcb *RcbPool;
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cppi_rcb *RxActQueueHead;
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cppi_rcb *RxActQueueTail;
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uint32_t RxActQueueCount;
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uint32_t RxActive;
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char *RcbStart;
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dma_addr_t rcb_start_dma_addr;
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int RxNumBuffers;
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cppi_rcb *RxFakeRcvHead;
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cppi_rcb *RxFakeRcvTail;
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#ifdef _CPHAL_STATS
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uint32_t RxMisQCnt;
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uint32_t RxEOQCnt;
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uint32_t RxMaxServiced;
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uint32_t RxPacketsServiced;
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uint32_t NumRxInt;
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#endif
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} cppi_rxcntl;
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typedef struct cppi_info
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{
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struct cppi_txcntl tx_ctl[CPPI_NUM_CHANNELS];
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struct cppi_rxcntl rx_ctl[CPPI_NUM_CHANNELS];
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uint8_t dma_mem[CPPI_INFO_MEM_SIZE];
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int dma_size;
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dma_addr_t dma_handle;
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} cppi_info;
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#define tnetv_cppi_rx_int_recv_check(cppi, ch) (((cppi)->rx_ctl[(ch)].RxFakeRcvHead) ? 1 : 0)
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int tnetv_cppi_init_tcb(struct cppi_info *cppi, int ch);
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int tnetv_cppi_flush_tx_queue(struct cppi_info *cppi, int ch);
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int tnetv_cppi_send(struct cppi_info *cppi, int ch, dma_addr_t buf, unsigned length, int send_zlp);
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int tnetv_cppi_tx_int(struct cppi_info *cppi, int ch);
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void tnetv_cppi_free_tcb(struct cppi_info *cppi, int ch);
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int tnetv_cppi_init_rcb(struct cppi_info *cppi, int ch);
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int tnetv_cppi_flush_rx_queue(struct cppi_info *cppi, int ch);
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int tnetv_cppi_rx_return(struct cppi_info *cppi, int ch, cppi_rcb *done_rcb);
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int tnetv_cppi_rx_queue_add(struct cppi_info *cppi, int ch, dma_addr_t buf, unsigned length);
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int tnetv_cppi_rx_int(struct cppi_info *cppi, int ch);
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int tnetv_cppi_rx_int_recv(struct cppi_info *cppi, int ch, int *buf_size, void *buf, int maxpacket);
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void tnetv_cppi_free_rcb(struct cppi_info *cppi, int ch);
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void tnetv_cppi_init(struct cppi_info *cppi);
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void tnetv_cppi_cleanup(struct cppi_info *cppi);
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void tnetv_cppi_dump_info(struct cppi_info *cppi);
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#endif
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