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CAPE family is Audio DSP for a board range of applications in IOT, PC and mobile can be interfaced via I2C, UART or USB interface. This patch is only for CX31993 and CX31988 chips, there is not immediate plans is to add support to other CAPE devices. CX31993 have two separate firmware .hid file for for each partition. It need to convert two .hid files into a .fw file for fwupd tool to consume. Currently, this patch is only support for EPOS headsets with basic firmware update feature. Either new code singing or manifest.xml are unsupported yet. The code has been tested with CX31993 EVK board. A test firmware file is put at 'src/fuzzing/firmware/synaptics-cape.fw' synaptics-cape: Port to new FuProgress API and style fixups synaptics-cape: Fix compile errors and add missing test fw file Signed-off-by: Simon Ho <simon.ho@synaptics.com> synaptics-cape: Fix fuzzer test Signed-off-by: Simon Ho <simon.ho@synaptics.com> synaptics-cape: Fix progress bar number Signed-off-by: Simon Ho <simon.ho@synaptics.com> synaptics-cape: Mark the fuzzing target trivial: Use a stable GLib branch for fuzzing synaptics-cape: Fix progress bar number Signed-off-by: Simon Ho <simon.ho@synaptics.com> synaptics-cape: Fix readme synaptics-cape: Style fixups synaptics-cape: Fix progress bar percentage synaptics-cape: Style fixups
42 lines
900 B
Markdown
42 lines
900 B
Markdown
# Synaptics CAPE devices
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## Introduction
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This plugin is used to update Synaptics CAPE based audio devices.
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## Firmware Format
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The daemon will decompress the cabinet archive and extract a firmware blob.
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This plugin supports the following protocol ID:
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* com.synaptics.cape
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## GUID Generation
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These devices use the standard USB DeviceInstanceId values, e.g.
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* `USB\VID_1395&PID_0293`
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These devices also use custom GUID values, e.g.
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* `SYNAPTICS_CAPE\CX31993`
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* `SYNAPTICS_CAPE\CX31988`
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## Update Behavior
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The firmware is deployed when the device is in normal runtime mode, and the
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device will reset when the new firmware has been written.
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## Vendor ID Security
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The vendor ID is set from the USB vendor, in this instance set to `USB:0x1395`
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## Quirk Use
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This plugin uses no plugin-specific quirks.
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## External Interface Access
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This plugin requires read/write access to `/dev/bus/usb`.
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