/* * 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; } 35space:mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-01 12:27:05 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-01 12:27:05 -0800
commit4759d386d55fef452d692bf101167914437e848e (patch)
treee7109c192ec589fcea2a98f9702aa3c0e4009581 /sound/usb/caiaq/control.h
parent238d1d0f79f619d75c2cc741d6770fb0986aef24 (diff)
parent1db175428ee374489448361213e9c3b749d14900 (diff)
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull DAX updates from Dan Williams: "The completion of Jan's DAX work for 4.10. As I mentioned in the libnvdimm-for-4.10 pull request, these are some final fixes for the DAX dirty-cacheline-tracking invalidation work that was merged through the -mm, ext4, and xfs trees in -rc1. These patches were prepared prior to the merge window, but we waited for 4.10-rc1 to have a stable merge base after all the prerequisites were merged. Quoting Jan on the overall changes in these patches: "So I'd like all these 6 patches to go for rc2. The first three patches fix invalidation of exceptional DAX entries (a bug which is there for a long time) - without these patches data loss can occur on power failure even though user called fsync(2). The other three patches change locking of DAX faults so that ->iomap_begin() is called in a more relaxed locking context and we are safe to start a transaction there for ext4" These have received a build success notification from the kbuild robot, and pass the latest libnvdimm unit tests. There have not been any -next releases since -rc1, so they have not appeared there" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: ext4: Simplify DAX fault path dax: Call ->iomap_begin without entry lock during dax fault dax: Finish fault completely when loading holes dax: Avoid page invalidation races and unnecessary radix tree traversals mm: Invalidate DAX radix tree entries only if appropriate ext2: Return BH_New buffers for zeroed blocks
Diffstat (limited to 'sound/usb/caiaq/control.h')