drivers/ieee1394/csr.h

   1 #ifndef _IEEE1394_CSR_H
   2 #define _IEEE1394_CSR_H
   3
   4 #include <linux/spinlock_types.h>
   5
   6 #include "csr1212.h"
   7 #include "ieee1394_types.h"
   8
   9 #define CSR_REGISTER_BASE               0xfffff0000000ULL
  10
  11 /* register offsets relative to CSR_REGISTER_BASE */
  12 #define CSR_STATE_CLEAR                 0x0
  13 #define CSR_STATE_SET                   0x4
  14 #define CSR_NODE_IDS                    0x8
  15 #define CSR_RESET_START                 0xc
  16 #define CSR_SPLIT_TIMEOUT_HI            0x18
  17 #define CSR_SPLIT_TIMEOUT_LO            0x1c
  18 #define CSR_CYCLE_TIME                  0x200
  19 #define CSR_BUS_TIME                    0x204
  20 #define CSR_BUSY_TIMEOUT                0x210
  21 #define CSR_BUS_MANAGER_ID              0x21c
  22 #define CSR_BANDWIDTH_AVAILABLE         0x220
  23 #define CSR_CHANNELS_AVAILABLE          0x224
  24 #define CSR_CHANNELS_AVAILABLE_HI       0x224
  25 #define CSR_CHANNELS_AVAILABLE_LO       0x228
  26 #define CSR_BROADCAST_CHANNEL           0x234
  27 #define CSR_CONFIG_ROM                  0x400
  28 #define CSR_CONFIG_ROM_END              0x800
  29 #define CSR_FCP_COMMAND                 0xB00
  30 #define CSR_FCP_RESPONSE                0xD00
  31 #define CSR_FCP_END                     0xF00
  32 #define CSR_TOPOLOGY_MAP                0x1000
  33 #define CSR_TOPOLOGY_MAP_END            0x1400
  34 #define CSR_SPEED_MAP                   0x2000
  35 #define CSR_SPEED_MAP_END               0x3000
  36
  37 /* IEEE 1394 bus specific Configuration ROM Key IDs */
  38 #define IEEE1394_KV_ID_POWER_REQUIREMENTS (0x30)
  39
  40 /* IEEE 1394 Bus Information Block specifics */
  41 #define CSR_BUS_INFO_SIZE (5 * sizeof(quadlet_t))
  42
  43 #define CSR_IRMC_SHIFT                  31
  44 #define CSR_CMC_SHIFT                   30
  45 #define CSR_ISC_SHIFT                   29
  46 #define CSR_BMC_SHIFT                   28
  47 #define CSR_PMC_SHIFT                   27
  48 #define CSR_CYC_CLK_ACC_SHIFT           16
  49 #define CSR_MAX_REC_SHIFT               12
  50 #define CSR_MAX_ROM_SHIFT               8
  51 #define CSR_GENERATION_SHIFT            4
  52
  53 static inline void csr_set_bus_info_generation(struct csr1212_csr *csr, u8 gen)
  54 {
  55         csr->bus_info_data[2] &= ~cpu_to_be32(0xf << CSR_GENERATION_SHIFT);
  56         csr->bus_info_data[2] |= cpu_to_be32((u32)gen << CSR_GENERATION_SHIFT);
  57 }
  58
  59 struct csr_control {
  60         spinlock_t lock;
  61
  62         quadlet_t state;
  63         quadlet_t node_ids;
  64         quadlet_t split_timeout_hi, split_timeout_lo;
  65         unsigned long expire;   /* Calculated from split_timeout */
  66         quadlet_t cycle_time;
  67         quadlet_t bus_time;
  68         quadlet_t bus_manager_id;
  69         quadlet_t bandwidth_available;
  70         quadlet_t channels_available_hi, channels_available_lo;
  71         quadlet_t broadcast_channel;
  72
  73         /* Bus Info */
  74         quadlet_t guid_hi, guid_lo;
  75         u8 cyc_clk_acc;
  76         u8 max_rec;
  77         u8 max_rom;
  78         u8 generation;  /* Only use values between 0x2 and 0xf */
  79         u8 lnk_spd;
  80
  81         unsigned long gen_timestamp[16];
  82
  83         struct csr1212_csr *rom;
  84
  85         quadlet_t topology_map[256];
  86         quadlet_t speed_map[1024];
  87 };
  88
  89 extern struct csr1212_bus_ops csr_bus_ops;
  90
  91 int init_csr(void);
  92 void cleanup_csr(void);
  93
  94 /* hpsb_update_config_rom() is deprecated */
  95 struct hpsb_host;
  96 int hpsb_update_config_rom(struct hpsb_host *host, const quadlet_t *new_rom,
  97                            size_t size, unsigned char rom_version);
  98
  99 #endif /* _IEEE1394_CSR_H */