2 * oxfw_command.c - a part of driver for OXFW970/971 based devices
4 * Copyright (c) 2014 Takashi Sakamoto
6 * Licensed under the terms of the GNU General Public License, version 2.
11 int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
12 unsigned int pid, u8 *format, unsigned int len)
17 buf = kmalloc(len + 10, GFP_KERNEL);
21 buf[0] = 0x00; /* CONTROL */
22 buf[1] = 0xff; /* UNIT */
23 buf[2] = 0xbf; /* EXTENDED STREAM FORMAT INFORMATION */
24 buf[3] = 0xc0; /* SINGLE subfunction */
25 buf[4] = dir; /* Plug Direction */
26 buf[5] = 0x00; /* UNIT */
27 buf[6] = 0x00; /* PCR (Isochronous Plug) */
28 buf[7] = 0xff & pid; /* Plug ID */
29 buf[8] = 0xff; /* Padding */
30 buf[9] = 0xff; /* Support status in response */
31 memcpy(buf + 10, format, len);
33 /* do transaction and check buf[1-8] are the same against command */
34 err = fcp_avc_transaction(unit, buf, len + 10, buf, len + 10,
35 BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
36 BIT(6) | BIT(7) | BIT(8));
39 else if (err < len + 10)
41 else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
43 else if (buf[0] == 0x0a) /* REJECTED */
53 int avc_stream_get_format(struct fw_unit *unit,
54 enum avc_general_plug_dir dir, unsigned int pid,
55 u8 *buf, unsigned int *len, unsigned int eid)
61 subfunc = 0xc0; /* SINGLE */
63 subfunc = 0xc1; /* LIST */
65 buf[0] = 0x01; /* STATUS */
66 buf[1] = 0xff; /* UNIT */
67 buf[2] = 0xbf; /* EXTENDED STREAM FORMAT INFORMATION */
68 buf[3] = subfunc; /* SINGLE or LIST */
69 buf[4] = dir; /* Plug Direction */
70 buf[5] = 0x00; /* Unit */
71 buf[6] = 0x00; /* PCR (Isochronous Plug) */
72 buf[7] = 0xff & pid; /* Plug ID */
73 buf[8] = 0xff; /* Padding */
74 buf[9] = 0xff; /* support status in response */
75 buf[10] = 0xff & eid; /* entry ID for LIST subfunction */
76 buf[11] = 0xff; /* padding */
78 /* do transaction and check buf[1-7] are the same against command */
79 err = fcp_avc_transaction(unit, buf, 12, buf, *len,
80 BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
86 else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
88 else if (buf[0] == 0x0a) /* REJECTED */
90 else if (buf[0] == 0x0b) /* IN TRANSITION */
92 /* LIST subfunction has entry ID */
93 else if ((subfunc == 0xc1) && (buf[10] != eid))
98 /* keep just stream format information */
99 if (subfunc == 0xc0) {
100 memmove(buf, buf + 10, err - 10);
103 memmove(buf, buf + 11, err - 11);
112 int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
113 enum avc_general_plug_dir dir,
120 for (sfc = 0; sfc < CIP_SFC_COUNT; sfc++) {
121 if (amdtp_rate_table[sfc] == rate)
124 if (sfc == CIP_SFC_COUNT)
127 buf = kzalloc(8, GFP_KERNEL);
131 buf[0] = 0x02; /* SPECIFIC INQUIRY */
132 buf[1] = 0xff; /* UNIT */
133 if (dir == AVC_GENERAL_PLUG_DIR_IN)
134 buf[2] = 0x19; /* INPUT PLUG SIGNAL FORMAT */
136 buf[2] = 0x18; /* OUTPUT PLUG SIGNAL FORMAT */
137 buf[3] = 0xff & pid; /* plug id */
138 buf[4] = 0x90; /* EOH_1, Form_1, FMT. AM824 */
139 buf[5] = 0x07 & sfc; /* FDF-hi. AM824, frequency */
140 buf[6] = 0xff; /* FDF-mid. AM824, SYT hi (not used) */
141 buf[7] = 0xff; /* FDF-low. AM824, SYT lo (not used) */
143 /* do transaction and check buf[1-5] are the same against command */
144 err = fcp_avc_transaction(unit, buf, 8, buf, 8,
145 BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5));
150 else if (buf[0] == 0x08) /* NOT IMPLEMENTED */