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-rw-r--r--sound/firewire/oxfw/Makefile2
-rw-r--r--sound/firewire/oxfw/oxfw-command.c153
-rw-r--r--sound/firewire/oxfw/oxfw.h33
3 files changed, 187 insertions, 1 deletions
diff --git a/sound/firewire/oxfw/Makefile b/sound/firewire/oxfw/Makefile
index 0cf48fd87688..b107134d11d5 100644
--- a/sound/firewire/oxfw/Makefile
+++ b/sound/firewire/oxfw/Makefile
@@ -1,2 +1,2 @@
-snd-oxfw-objs := oxfw-stream.o oxfw-control.o oxfw-pcm.o oxfw.o
+snd-oxfw-objs := oxfw-command.o oxfw-stream.o oxfw-control.o oxfw-pcm.o oxfw.o
obj-m += snd-oxfw.o
diff --git a/sound/firewire/oxfw/oxfw-command.c b/sound/firewire/oxfw/oxfw-command.c
new file mode 100644
index 000000000000..12ef3253bc89
--- /dev/null
+++ b/sound/firewire/oxfw/oxfw-command.c
@@ -0,0 +1,153 @@
+/*
+ * oxfw_command.c - a part of driver for OXFW970/971 based devices
+ *
+ * Copyright (c) 2014 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "oxfw.h"
+
+int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
+ unsigned int pid, u8 *format, unsigned int len)
+{
+ u8 *buf;
+ int err;
+
+ buf = kmalloc(len + 10, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ buf[0] = 0x00; /* CONTROL */
+ buf[1] = 0xff; /* UNIT */
+ buf[2] = 0xbf; /* EXTENDED STREAM FORMAT INFORMATION */
+ buf[3] = 0xc0; /* SINGLE subfunction */
+ buf[4] = dir; /* Plug Direction */
+ buf[5] = 0x00; /* UNIT */
+ buf[6] = 0x00; /* PCR (Isochronous Plug) */
+ buf[7] = 0xff & pid; /* Plug ID */
+ buf[8] = 0xff; /* Padding */
+ buf[9] = 0xff; /* Support status in response */
+ memcpy(buf + 10, format, len);
+
+ /* do transaction and check buf[1-8] are the same against command */
+ err = fcp_avc_transaction(unit, buf, len + 10, buf, len + 10,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+ BIT(6) | BIT(7) | BIT(8));
+ if ((err > 0) && (err < len + 10))
+ err = -EIO;
+ else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
+ err = -ENOSYS;
+ else if (buf[0] == 0x0a) /* REJECTED */
+ err = -EINVAL;
+ else
+ err = 0;
+
+ kfree(buf);
+
+ return err;
+}
+
+int avc_stream_get_format(struct fw_unit *unit,
+ enum avc_general_plug_dir dir, unsigned int pid,
+ u8 *buf, unsigned int *len, unsigned int eid)
+{
+ unsigned int subfunc;
+ int err;
+
+ if (eid == 0xff)
+ subfunc = 0xc0; /* SINGLE */
+ else
+ subfunc = 0xc1; /* LIST */
+
+ buf[0] = 0x01; /* STATUS */
+ buf[1] = 0xff; /* UNIT */
+ buf[2] = 0xbf; /* EXTENDED STREAM FORMAT INFORMATION */
+ buf[3] = subfunc; /* SINGLE or LIST */
+ buf[4] = dir; /* Plug Direction */
+ buf[5] = 0x00; /* Unit */
+ buf[6] = 0x00; /* PCR (Isochronous Plug) */
+ buf[7] = 0xff & pid; /* Plug ID */
+ buf[8] = 0xff; /* Padding */
+ buf[9] = 0xff; /* support status in response */
+ buf[10] = 0xff & eid; /* entry ID for LIST subfunction */
+ buf[11] = 0xff; /* padding */
+
+ /* do transaction and check buf[1-7] are the same against command */
+ err = fcp_avc_transaction(unit, buf, 12, buf, *len,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+ BIT(6) | BIT(7));
+ if ((err > 0) && (err < 10))
+ err = -EIO;
+ else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
+ err = -ENOSYS;
+ else if (buf[0] == 0x0a) /* REJECTED */
+ err = -EINVAL;
+ else if (buf[0] == 0x0b) /* IN TRANSITION */
+ err = -EAGAIN;
+ /* LIST subfunction has entry ID */
+ else if ((subfunc == 0xc1) && (buf[10] != eid))
+ err = -EIO;
+ if (err < 0)
+ goto end;
+
+ /* keep just stream format information */
+ if (subfunc == 0xc0) {
+ memmove(buf, buf + 10, err - 10);
+ *len = err - 10;
+ } else {
+ memmove(buf, buf + 11, err - 11);
+ *len = err - 11;
+ }
+
+ err = 0;
+end:
+ return err;
+}
+
+int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
+ enum avc_general_plug_dir dir,
+ unsigned short pid)
+{
+ unsigned int sfc;
+ u8 *buf;
+ int err;
+
+ for (sfc = 0; sfc < CIP_SFC_COUNT; sfc++) {
+ if (amdtp_rate_table[sfc] == rate)
+ break;
+ }
+ if (sfc == CIP_SFC_COUNT)
+ return -EINVAL;
+
+ buf = kzalloc(8, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ buf[0] = 0x02; /* SPECIFIC INQUIRY */
+ buf[1] = 0xff; /* UNIT */
+ if (dir == AVC_GENERAL_PLUG_DIR_IN)
+ buf[2] = 0x19; /* INPUT PLUG SIGNAL FORMAT */
+ else
+ buf[2] = 0x18; /* OUTPUT PLUG SIGNAL FORMAT */
+ buf[3] = 0xff & pid; /* plug id */
+ buf[4] = 0x90; /* EOH_1, Form_1, FMT. AM824 */
+ buf[5] = 0x07 & sfc; /* FDF-hi. AM824, frequency */
+ buf[6] = 0xff; /* FDF-mid. AM824, SYT hi (not used) */
+ buf[7] = 0xff; /* FDF-low. AM824, SYT lo (not used) */
+
+ /* do transaction and check buf[1-5] are the same against command */
+ err = fcp_avc_transaction(unit, buf, 8, buf, 8,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5));
+ if ((err > 0) && (err < 8))
+ err = -EIO;
+ else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
+ err = -ENOSYS;
+ if (err < 0)
+ goto end;
+
+ err = 0;
+end:
+ kfree(buf);
+ return err;
+}
diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h
index a61c75cbaba8..a7031d414441 100644
--- a/sound/firewire/oxfw/oxfw.h
+++ b/sound/firewire/oxfw/oxfw.h
@@ -49,6 +49,39 @@ struct snd_oxfw {
s16 volume_max;
};
+/*
+ * AV/C Stream Format Information Specification 1.1 Working Draft
+ * (Apr 2005, 1394TA)
+ */
+int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
+ unsigned int pid, u8 *format, unsigned int len);
+int avc_stream_get_format(struct fw_unit *unit,
+ enum avc_general_plug_dir dir, unsigned int pid,
+ u8 *buf, unsigned int *len, unsigned int eid);
+static inline int
+avc_stream_get_format_single(struct fw_unit *unit,
+ enum avc_general_plug_dir dir, unsigned int pid,
+ u8 *buf, unsigned int *len)
+{
+ return avc_stream_get_format(unit, dir, pid, buf, len, 0xff);
+}
+static inline int
+avc_stream_get_format_list(struct fw_unit *unit,
+ enum avc_general_plug_dir dir, unsigned int pid,
+ u8 *buf, unsigned int *len,
+ unsigned int eid)
+{
+ return avc_stream_get_format(unit, dir, pid, buf, len, eid);
+}
+
+/*
+ * AV/C Digital Interface Command Set General Specification 4.2
+ * (Sep 2004, 1394TA)
+ */
+int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
+ enum avc_general_plug_dir dir,
+ unsigned short pid);
+
int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw);
int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw);
void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 17:33:15 +0000