tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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#define CSR_SET_BUS_INFO_GENERATION(csr, gen) \
54 ((csr)->bus_info_data[2] = \
55 cpu_to_be32((be32_to_cpu((csr)->bus_info_data[2]) & \
56 ~(0xf << CSR_GENERATION_SHIFT)) | \
57 (gen) << CSR_GENERATION_SHIFT))
58
59struct 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
89extern struct csr1212_bus_ops csr_bus_ops;
90
91int init_csr(void);
92void cleanup_csr(void);
93
94/* hpsb_update_config_rom() is deprecated */
95struct hpsb_host;
96int 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 */