#ifndef SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED #define SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED #include #include #include "amdtp-stream.h" #define AM824_IN_PCM_FORMAT_BITS SNDRV_PCM_FMTBIT_S32 #define AM824_OUT_PCM_FORMAT_BITS (SNDRV_PCM_FMTBIT_S16 | \ SNDRV_PCM_FMTBIT_S32) /* * This module supports maximum 64 PCM channels for one PCM stream * This is for our convenience. */ #define AM824_MAX_CHANNELS_FOR_PCM 64 /* * AMDTP packet can include channels for MIDI conformant data. * Each MIDI conformant data channel includes 8 MPX-MIDI data stream. * Each MPX-MIDI data stream includes one data stream from/to MIDI ports. * * This module supports maximum 1 MIDI conformant data channels. * Then this AMDTP packets can transfer maximum 8 MIDI data streams. */ #define AM824_MAX_CHANNELS_FOR_MIDI 1 int amdtp_am824_set_parameters(struct amdtp_stream *s, unsigned int rate, unsigned int pcm_channels, unsigned int midi_ports, bool double_pcm_frames); void amdtp_am824_set_pcm_position(struct amdtp_stream *s, unsigned int index, unsigned int position); void amdtp_am824_set_midi_position(struct amdtp_stream *s, unsigned int position); int amdtp_am824_add_pcm_hw_constraints(struct amdtp_stream *s, struct snd_pcm_runtime *runtime); void amdtp_am824_set_pcm_format(struct amdtp_stream *s, snd_pcm_format_t format); void amdtp_am824_midi_trigger(struct amdtp_stream *s, unsigned int port, struct snd_rawmidi_substream *midi); int amdtp_am824_init(struct amdtp_stream *s, struct fw_unit *unit, enum amdtp_stream_direction dir, enum cip_flags flags); #endif 3'>refslogtreecommitdiff
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authorBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
committerBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
commit030305d69fc6963c16003f50d7e8d74b02d0a143 (patch)
tree363a4e34d199178769b7e7eeb26ea2620a55847b /sound/soc/soc-dapm.c
parent4d191b1b63c209e37bf27938ef365244d3c41084 (diff)
PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies
In a struct pcie_link_state, link->root points to the pcie_link_state of the root of the PCIe hierarchy. For the topmost link, this points to itself (link->root = link). For others, we copy the pointer from the parent (link->root = link->parent->root). Previously we recognized that Root Ports originated PCIe hierarchies, but we treated PCI/PCI-X to PCIe Bridges as being in the middle of the hierarchy, and when we tried to copy the pointer from link->parent->root, there was no parent, and we dereferenced a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000090 IP: [<ffffffff9e424350>] pcie_aspm_init_link_state+0x170/0x820 Recognize that PCI/PCI-X to PCIe Bridges originate PCIe hierarchies just like Root Ports do, so link->root for these devices should also point to itself. Fixes: 51ebfc92b72b ("PCI: Enumerate switches below PCI-to-PCIe bridges") Link: https://bugzilla.kernel.org/show_bug.cgi?id=193411 Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1022181 Tested-by: lists@ssl-mail.com Tested-by: Jayachandran C. <jnair@caviumnetworks.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v4.2+
Diffstat (limited to 'sound/soc/soc-dapm.c')