diff options
Diffstat (limited to 'drivers/ieee1394/ohci1394.h')
| -rw-r--r-- | drivers/ieee1394/ohci1394.h | 453 |
1 files changed, 0 insertions, 453 deletions
diff --git a/drivers/ieee1394/ohci1394.h b/drivers/ieee1394/ohci1394.h deleted file mode 100644 index 7fb8ab9780a..00000000000 --- a/drivers/ieee1394/ohci1394.h +++ /dev/null @@ -1,453 +0,0 @@ -/* - * 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" -#include <asm/io.h> - -#define OHCI1394_DRIVER_NAME "ohci1394" - -#define OHCI1394_MAX_AT_REQ_RETRIES 0xf -#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 */ -}; - -/* identify whether a DMA context is asynchronous or isochronous */ -enum context_type { DMA_CTX_ASYNC_REQ, DMA_CTX_ASYNC_RESP, DMA_CTX_ISO }; - -/* DMA receive context */ -struct dma_rcv_ctx { - struct ti_ohci *ohci; - enum context_type type; - 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; - struct pci_pool *prg_pool; - - /* 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; - int ctxtMatch; -}; - -/* DMA transmit context */ -struct dma_trm_ctx { - struct ti_ohci *ohci; - enum context_type type; - int ctx; - unsigned int num_desc; - - /* dma block descriptors */ - struct at_dma_prg **prg_cpu; - dma_addr_t *prg_bus; - struct pci_pool *prg_pool; - - unsigned int prg_ind; - unsigned int sent_ind; - int free_prgs; - quadlet_t *branchAddrPtr; - - /* list of packets inserted in the AT FIFO */ - struct list_head fifo_list; - - /* list of pending packets to be inserted in the AT FIFO */ - struct list_head pending_list; - - spinlock_t lock; - struct tasklet_struct task; - int ctrlClear; - int ctrlSet; - int cmdPtr; -}; - -struct ohci1394_iso_tasklet { - struct tasklet_struct tasklet; - struct list_head link; - int context; - enum { OHCI_ISO_TRANSMIT, OHCI_ISO_RECEIVE, - OHCI_ISO_MULTICHANNEL_RECEIVE } type; -}; - -struct ti_ohci { - struct pci_dev *dev; - - enum { - OHCI_INIT_ALLOC_HOST, - OHCI_INIT_HAVE_MEM_REGION, - OHCI_INIT_HAVE_IOMAPPING, - OHCI_INIT_HAVE_CONFIG_ROM_BUFFER, - OHCI_INIT_HAVE_SELFID_BUFFER, - OHCI_INIT_HAVE_TXRX_BUFFERS__MAYBE, - OHCI_INIT_HAVE_IRQ, - OHCI_INIT_DONE, - } init_state; - - /* remapped memory spaces */ - void __iomem *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 */ - int nb_iso_rcv_ctx; - unsigned long ir_ctx_usage; /* use test_and_set_bit() for atomicity */ - unsigned long ir_multichannel_used; /* ditto */ - spinlock_t IR_channel_lock; - - /* iso transmit */ - int nb_iso_xmit_ctx; - unsigned long it_ctx_usage; /* use test_and_set_bit() for atomicity */ - - 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; - - /* Tasklets for iso receive and transmit, used by video1394 - * and dv1394 */ - struct list_head iso_tasklet_list; - spinlock_t iso_tasklet_list_lock; - - /* 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; - - /* Force extra paranoia checking on bus-reset handling */ - unsigned int check_busreset:1; -}; - -static inline int cross_bound(unsigned long addr, unsigned int size) -{ - if (size == 0) - return 0; - - if (size > PAGE_SIZE) - return 1; - - if (addr >> PAGE_SHIFT != (addr + size - 1) >> PAGE_SHIFT) - return 1; - - return 0; -} - -/* - * 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 - -/* Offsets relative to context bases defined below */ - -#define OHCI1394_ContextControlSet 0x000 -#define OHCI1394_ContextControlClear 0x004 -#define OHCI1394_ContextCommandPtr 0x00C - -/* 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_HCControl_noByteSwap 0x40000000 -#define OHCI1394_HCControl_programPhyEnable 0x00800000 -#define OHCI1394_HCControl_aPhyEnhanceEnable 0x00400000 -#define OHCI1394_HCControl_LPS 0x00080000 -#define OHCI1394_HCControl_postedWriteEnable 0x00040000 -#define OHCI1394_HCControl_linkEnable 0x00020000 -#define OHCI1394_HCControl_softReset 0x00010000 -#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_InitialBandwidthAvailable 0x0B0 -#define OHCI1394_InitialChannelsAvailableHi 0x0B4 -#define OHCI1394_InitialChannelsAvailableLo 0x0B8 -#define OHCI1394_FairnessControl 0x0DC -#define OHCI1394_LinkControlSet 0x0E0 -#define OHCI1394_LinkControlClear 0x0E4 -#define OHCI1394_LinkControl_RcvSelfID 0x00000200 -#define OHCI1394_LinkControl_RcvPhyPkt 0x00000400 -#define OHCI1394_LinkControl_CycleTimerEnable 0x00100000 -#define OHCI1394_LinkControl_CycleMaster 0x00200000 -#define OHCI1394_LinkControl_CycleSource 0x00400000 -#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_AsReqTrContextBase 0x180 -#define OHCI1394_AsReqTrContextControlSet 0x180 -#define OHCI1394_AsReqTrContextControlClear 0x184 -#define OHCI1394_AsReqTrCommandPtr 0x18C - -#define OHCI1394_AsRspTrContextBase 0x1A0 -#define OHCI1394_AsRspTrContextControlSet 0x1A0 -#define OHCI1394_AsRspTrContextControlClear 0x1A4 -#define OHCI1394_AsRspTrCommandPtr 0x1AC - -#define OHCI1394_AsReqRcvContextBase 0x1C0 -#define OHCI1394_AsReqRcvContextControlSet 0x1C0 -#define OHCI1394_AsReqRcvContextControlClear 0x1C4 -#define OHCI1394_AsReqRcvCommandPtr 0x1CC - -#define OHCI1394_AsRspRcvContextBase 0x1E0 -#define OHCI1394_AsRspRcvContextControlSet 0x1E0 -#define OHCI1394_AsRspRcvContextControlClear 0x1E4 -#define OHCI1394_AsRspRcvCommandPtr 0x1EC - -/* Isochronous transmit registers */ -/* Add (16 * n) for context n */ -#define OHCI1394_IsoXmitContextBase 0x200 -#define OHCI1394_IsoXmitContextControlSet 0x200 -#define OHCI1394_IsoXmitContextControlClear 0x204 -#define OHCI1394_IsoXmitCommandPtr 0x20C - -/* Isochronous receive registers */ -/* Add (32 * n) for context n */ -#define OHCI1394_IsoRcvContextBase 0x400 -#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 - -/* OHCI evt_* error types, table 3-2 of the OHCI 1.1 spec. */ -#define EVT_NO_STATUS 0x0 /* No event status */ -#define EVT_RESERVED_A 0x1 /* Reserved, not used !!! */ -#define EVT_LONG_PACKET 0x2 /* The revc data was longer than the buf */ -#define EVT_MISSING_ACK 0x3 /* A subaction gap was detected before an ack - arrived, or recv'd ack had a parity error */ -#define EVT_UNDERRUN 0x4 /* Underrun on corresponding FIFO, packet - truncated */ -#define EVT_OVERRUN 0x5 /* A recv FIFO overflowed on reception of ISO - packet */ -#define EVT_DESCRIPTOR_READ 0x6 /* An unrecoverable error occurred while host was - reading a descriptor block */ -#define EVT_DATA_READ 0x7 /* An error occurred while host controller was - attempting to read from host memory in the data - stage of descriptor processing */ -#define EVT_DATA_WRITE 0x8 /* An error occurred while host controller was - attempting to write either during the data stage - of descriptor processing, or when processing a single - 16-bit host memory write */ -#define EVT_BUS_RESET 0x9 /* Identifies a PHY packet in the recv buffer as - being a synthesized bus reset packet */ -#define EVT_TIMEOUT 0xa /* Indicates that the asynchronous transmit response - packet expired and was not transmitted, or that an - IT DMA context experienced a skip processing overflow */ -#define EVT_TCODE_ERR 0xb /* A bad tCode is associated with this packet. - The packet was flushed */ -#define EVT_RESERVED_B 0xc /* Reserved, not used !!! */ -#define EVT_RESERVED_C 0xd /* Reserved, not used !!! */ -#define EVT_UNKNOWN 0xe /* An error condition has occurred that cannot be - represented by any other event codes defined herein. */ -#define EVT_FLUSHED 0xf /* Send by the link side of output FIFO when asynchronous - packets are being flushed due to a bus reset. */ - -#define OHCI1394_TCODE_PHY 0xE - -/* Node offset map (phys DMA area, posted write area). - * The value of OHCI1394_PHYS_UPPER_BOUND_PROGRAMMED may be modified but must - * be lower than OHCI1394_MIDDLE_ADDRESS_SPACE. - * OHCI1394_PHYS_UPPER_BOUND_FIXED and OHCI1394_MIDDLE_ADDRESS_SPACE are - * constants given by the OHCI spec. - */ -#define OHCI1394_PHYS_UPPER_BOUND_FIXED 0x000100000000ULL /* 4 GB */ -#define OHCI1394_PHYS_UPPER_BOUND_PROGRAMMED 0x010000000000ULL /* 1 TB */ -#define OHCI1394_MIDDLE_ADDRESS_SPACE 0xffff00000000ULL - -void ohci1394_init_iso_tasklet(struct ohci1394_iso_tasklet *tasklet, - int type, - void (*func)(unsigned long), - unsigned long data); -int ohci1394_register_iso_tasklet(struct ti_ohci *ohci, - struct ohci1394_iso_tasklet *tasklet); -void ohci1394_unregister_iso_tasklet(struct ti_ohci *ohci, - struct ohci1394_iso_tasklet *tasklet); -int ohci1394_stop_context(struct ti_ohci *ohci, int reg, char *msg); -struct ti_ohci *ohci1394_get_struct(int card_num); - -#endif |