ohci1394.h
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上传日期:2013-02-24
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- /*
- * ohci1394.h - driver for OHCI 1394 boards
- * Copyright (C)1999,2000 Sebastien Rougeaux <sebastien.rougeaux@anu.edu.au>
- * Gord Peters <GordPeters@smarttech.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
- #ifndef _OHCI1394_H
- #define _OHCI1394_H
- #include "ieee1394_types.h"
- #define OHCI1394_DRIVER_NAME "ohci1394"
- #define OHCI1394_MAX_AT_REQ_RETRIES 0x2
- #define OHCI1394_MAX_AT_RESP_RETRIES 0x2
- #define OHCI1394_MAX_PHYS_RESP_RETRIES 0x8
- #define OHCI1394_MAX_SELF_ID_ERRORS 16
- #define AR_REQ_NUM_DESC 4 /* number of AR req descriptors */
- #define AR_REQ_BUF_SIZE PAGE_SIZE /* size of AR req buffers */
- #define AR_REQ_SPLIT_BUF_SIZE PAGE_SIZE /* split packet buffer */
- #define AR_RESP_NUM_DESC 4 /* number of AR resp descriptors */
- #define AR_RESP_BUF_SIZE PAGE_SIZE /* size of AR resp buffers */
- #define AR_RESP_SPLIT_BUF_SIZE PAGE_SIZE /* split packet buffer */
- #define IR_NUM_DESC 16 /* number of IR descriptors */
- #define IR_BUF_SIZE PAGE_SIZE /* 4096 bytes/buffer */
- #define IR_SPLIT_BUF_SIZE PAGE_SIZE /* split packet buffer */
- #define IT_NUM_DESC 16 /* number of IT descriptors */
- #define AT_REQ_NUM_DESC 32 /* number of AT req descriptors */
- #define AT_RESP_NUM_DESC 32 /* number of AT resp descriptors */
- #define OHCI_LOOP_COUNT 100 /* Number of loops for reg read waits */
- #define OHCI_CONFIG_ROM_LEN 1024 /* Length of the mapped configrom space */
- #define OHCI1394_SI_DMA_BUF_SIZE 8192 /* length of the selfid buffer */
- /* PCI configuration space addresses */
- #define OHCI1394_PCI_HCI_Control 0x40
- struct dma_cmd {
- u32 control;
- u32 address;
- u32 branchAddress;
- u32 status;
- };
- /*
- * FIXME:
- * It is important that a single at_dma_prg does not cross a page boundary
- * The proper way to do it would be to do the check dynamically as the
- * programs are inserted into the AT fifo.
- */
- struct at_dma_prg {
- struct dma_cmd begin;
- quadlet_t data[4];
- struct dma_cmd end;
- quadlet_t pad[4]; /* FIXME: quick hack for memory alignment */
- };
- /* DMA receive context */
- struct dma_rcv_ctx {
- void *ohci;
- int ctx;
- unsigned int num_desc;
- unsigned int buf_size;
- unsigned int split_buf_size;
- /* dma block descriptors */
- struct dma_cmd **prg_cpu;
- dma_addr_t *prg_bus;
- /* dma buffers */
- quadlet_t **buf_cpu;
- dma_addr_t *buf_bus;
- unsigned int buf_ind;
- unsigned int buf_offset;
- quadlet_t *spb;
- spinlock_t lock;
- struct tasklet_struct task;
- int ctrlClear;
- int ctrlSet;
- int cmdPtr;
- };
- /* DMA transmit context */
- struct dma_trm_ctx {
- void *ohci;
- int ctx;
- unsigned int num_desc;
- /* dma block descriptors */
- struct at_dma_prg **prg_cpu;
- dma_addr_t *prg_bus;
- unsigned int prg_ind;
- unsigned int sent_ind;
- int free_prgs;
- quadlet_t *branchAddrPtr;
- /* list of packets inserted in the AT FIFO */
- struct hpsb_packet *fifo_first;
- struct hpsb_packet *fifo_last;
- /* list of pending packets to be inserted in the AT FIFO */
- struct hpsb_packet *pending_first;
- struct hpsb_packet *pending_last;
- spinlock_t lock;
- struct tasklet_struct task;
- int ctrlClear;
- int ctrlSet;
- int cmdPtr;
- };
- /* video device template */
- struct video_template {
- void (*irq_handler) (int card, quadlet_t isoRecvEvent,
- quadlet_t isoXmitEvent);
- };
- struct ti_ohci {
- int id; /* sequential card number */
- struct list_head list;
- struct pci_dev *dev;
- u32 state;
-
- /* remapped memory spaces */
- void *registers;
- /* dma buffer for self-id packets */
- quadlet_t *selfid_buf_cpu;
- dma_addr_t selfid_buf_bus;
-
- /* buffer for csr config rom */
- quadlet_t *csr_config_rom_cpu;
- dma_addr_t csr_config_rom_bus;
- int csr_config_rom_length;
- unsigned int max_packet_size;
- /* async receive */
- struct dma_rcv_ctx *ar_resp_context;
- struct dma_rcv_ctx *ar_req_context;
- /* async transmit */
- struct dma_trm_ctx *at_resp_context;
- struct dma_trm_ctx *at_req_context;
- /* iso receive */
- struct dma_rcv_ctx *ir_context;
- spinlock_t IR_channel_lock;
- int nb_iso_rcv_ctx;
- /* iso transmit */
- struct dma_trm_ctx *it_context;
- int nb_iso_xmit_ctx;
- u64 ISO_channel_usage;
- /* IEEE-1394 part follows */
- struct hpsb_host *host;
- int phyid, isroot;
- spinlock_t phy_reg_lock;
- spinlock_t event_lock;
- int self_id_errors;
- /* video device */
- struct video_template *video_tmpl;
- /* Swap the selfid buffer? */
- unsigned int selfid_swap:1;
- /* Some Apple chipset seem to swap incoming headers for us */
- unsigned int no_swap_incoming:1;
- };
- static inline int cross_bound(unsigned long addr, unsigned int size)
- {
- int cross=0;
- if (size>PAGE_SIZE) {
- cross = size/PAGE_SIZE;
- size -= cross*PAGE_SIZE;
- }
- if ((PAGE_SIZE-addr%PAGE_SIZE)<size)
- cross++;
- return cross;
- }
- /*
- * Register read and write helper functions.
- */
- static inline void reg_write(const struct ti_ohci *ohci, int offset, u32 data)
- {
- writel(data, ohci->registers + offset);
- }
- static inline u32 reg_read(const struct ti_ohci *ohci, int offset)
- {
- return readl(ohci->registers + offset);
- }
- /* 2 KiloBytes of register space */
- #define OHCI1394_REGISTER_SIZE 0x800
- /* register map */
- #define OHCI1394_Version 0x000
- #define OHCI1394_GUID_ROM 0x004
- #define OHCI1394_ATRetries 0x008
- #define OHCI1394_CSRData 0x00C
- #define OHCI1394_CSRCompareData 0x010
- #define OHCI1394_CSRControl 0x014
- #define OHCI1394_ConfigROMhdr 0x018
- #define OHCI1394_BusID 0x01C
- #define OHCI1394_BusOptions 0x020
- #define OHCI1394_GUIDHi 0x024
- #define OHCI1394_GUIDLo 0x028
- #define OHCI1394_ConfigROMmap 0x034
- #define OHCI1394_PostedWriteAddressLo 0x038
- #define OHCI1394_PostedWriteAddressHi 0x03C
- #define OHCI1394_VendorID 0x040
- #define OHCI1394_HCControlSet 0x050
- #define OHCI1394_HCControlClear 0x054
- #define OHCI1394_SelfIDBuffer 0x064
- #define OHCI1394_SelfIDCount 0x068
- #define OHCI1394_IRMultiChanMaskHiSet 0x070
- #define OHCI1394_IRMultiChanMaskHiClear 0x074
- #define OHCI1394_IRMultiChanMaskLoSet 0x078
- #define OHCI1394_IRMultiChanMaskLoClear 0x07C
- #define OHCI1394_IntEventSet 0x080
- #define OHCI1394_IntEventClear 0x084
- #define OHCI1394_IntMaskSet 0x088
- #define OHCI1394_IntMaskClear 0x08C
- #define OHCI1394_IsoXmitIntEventSet 0x090
- #define OHCI1394_IsoXmitIntEventClear 0x094
- #define OHCI1394_IsoXmitIntMaskSet 0x098
- #define OHCI1394_IsoXmitIntMaskClear 0x09C
- #define OHCI1394_IsoRecvIntEventSet 0x0A0
- #define OHCI1394_IsoRecvIntEventClear 0x0A4
- #define OHCI1394_IsoRecvIntMaskSet 0x0A8
- #define OHCI1394_IsoRecvIntMaskClear 0x0AC
- #define OHCI1394_FairnessControl 0x0DC
- #define OHCI1394_LinkControlSet 0x0E0
- #define OHCI1394_LinkControlClear 0x0E4
- #define OHCI1394_NodeID 0x0E8
- #define OHCI1394_PhyControl 0x0EC
- #define OHCI1394_IsochronousCycleTimer 0x0F0
- #define OHCI1394_AsReqFilterHiSet 0x100
- #define OHCI1394_AsReqFilterHiClear 0x104
- #define OHCI1394_AsReqFilterLoSet 0x108
- #define OHCI1394_AsReqFilterLoClear 0x10C
- #define OHCI1394_PhyReqFilterHiSet 0x110
- #define OHCI1394_PhyReqFilterHiClear 0x114
- #define OHCI1394_PhyReqFilterLoSet 0x118
- #define OHCI1394_PhyReqFilterLoClear 0x11C
- #define OHCI1394_PhyUpperBound 0x120
- #define OHCI1394_AsReqTrContextControlSet 0x180
- #define OHCI1394_AsReqTrContextControlClear 0x184
- #define OHCI1394_AsReqTrCommandPtr 0x18C
- #define OHCI1394_AsRspTrContextControlSet 0x1A0
- #define OHCI1394_AsRspTrContextControlClear 0x1A4
- #define OHCI1394_AsRspTrCommandPtr 0x1AC
- #define OHCI1394_AsReqRcvContextControlSet 0x1C0
- #define OHCI1394_AsReqRcvContextControlClear 0x1C4
- #define OHCI1394_AsReqRcvCommandPtr 0x1CC
- #define OHCI1394_AsRspRcvContextControlSet 0x1E0
- #define OHCI1394_AsRspRcvContextControlClear 0x1E4
- #define OHCI1394_AsRspRcvCommandPtr 0x1EC
- /* Isochronous transmit registers */
- /* Add (32 * n) for context n */
- #define OHCI1394_IsoXmitContextControlSet 0x200
- #define OHCI1394_IsoXmitContextControlClear 0x204
- #define OHCI1394_IsoXmitCommandPtr 0x20C
- /* Isochronous receive registers */
- /* Add (32 * n) for context n */
- #define OHCI1394_IsoRcvContextControlSet 0x400
- #define OHCI1394_IsoRcvContextControlClear 0x404
- #define OHCI1394_IsoRcvCommandPtr 0x40C
- #define OHCI1394_IsoRcvContextMatch 0x410
- /* Interrupts Mask/Events */
- #define OHCI1394_reqTxComplete 0x00000001
- #define OHCI1394_respTxComplete 0x00000002
- #define OHCI1394_ARRQ 0x00000004
- #define OHCI1394_ARRS 0x00000008
- #define OHCI1394_RQPkt 0x00000010
- #define OHCI1394_RSPkt 0x00000020
- #define OHCI1394_isochTx 0x00000040
- #define OHCI1394_isochRx 0x00000080
- #define OHCI1394_postedWriteErr 0x00000100
- #define OHCI1394_lockRespErr 0x00000200
- #define OHCI1394_selfIDComplete 0x00010000
- #define OHCI1394_busReset 0x00020000
- #define OHCI1394_phy 0x00080000
- #define OHCI1394_cycleSynch 0x00100000
- #define OHCI1394_cycle64Seconds 0x00200000
- #define OHCI1394_cycleLost 0x00400000
- #define OHCI1394_cycleInconsistent 0x00800000
- #define OHCI1394_unrecoverableError 0x01000000
- #define OHCI1394_cycleTooLong 0x02000000
- #define OHCI1394_phyRegRcvd 0x04000000
- #define OHCI1394_masterIntEnable 0x80000000
- /* DMA Control flags */
- #define DMA_CTL_OUTPUT_MORE 0x00000000
- #define DMA_CTL_OUTPUT_LAST 0x10000000
- #define DMA_CTL_INPUT_MORE 0x20000000
- #define DMA_CTL_INPUT_LAST 0x30000000
- #define DMA_CTL_UPDATE 0x08000000
- #define DMA_CTL_IMMEDIATE 0x02000000
- #define DMA_CTL_IRQ 0x00300000
- #define DMA_CTL_BRANCH 0x000c0000
- #define DMA_CTL_WAIT 0x00030000
- #define OHCI1394_TCODE_PHY 0xE
- void ohci1394_stop_context(struct ti_ohci *ohci, int reg, char *msg);
- struct ti_ohci *ohci1394_get_struct(int card_num);
- int ohci1394_register_video(struct ti_ohci *ohci,
- struct video_template *tmpl);
- void ohci1394_unregister_video(struct ti_ohci *ohci,
- struct video_template *tmpl);
- #endif