2358024b67
We always knew backward compatibility with the ES3 bootrom, which was finalised about a year ago, would be a pain. Here we go again. The bootrom does not support control requests added after it was burnt into ROM for obvious reasons. This means that we need to suppress sending the new bundle_activate() operation to any interface executing the legacy bootrom. Do so by adding a new NO_PM interface quirk (we can use the control-protocol version for this later once we bump it). Note that the interface-disable path (e.g. for power down) is already handled by the FORCED_DISABLE quirk, and that the suspend/resume paths are currently avoided by making sure that the bootrom bundle never suspends. Signed-off-by: Johan Hovold <johan@hovoldconsulting.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Tested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
66 lines
2.5 KiB
C
66 lines
2.5 KiB
C
/*
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* Greybus CPort control protocol
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*
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* Copyright 2015 Google Inc.
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* Copyright 2015 Linaro Ltd.
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*
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* Released under the GPLv2 only.
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*/
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#ifndef __CONTROL_H
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#define __CONTROL_H
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struct gb_control {
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struct device dev;
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struct gb_interface *intf;
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struct gb_connection *connection;
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u8 protocol_major;
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u8 protocol_minor;
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bool has_bundle_activate;
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bool has_bundle_version;
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char *vendor_string;
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char *product_string;
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};
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#define to_gb_control(d) container_of(d, struct gb_control, dev)
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struct gb_control *gb_control_create(struct gb_interface *intf);
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int gb_control_enable(struct gb_control *control);
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void gb_control_disable(struct gb_control *control);
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int gb_control_suspend(struct gb_control *control);
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int gb_control_resume(struct gb_control *control);
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int gb_control_add(struct gb_control *control);
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void gb_control_del(struct gb_control *control);
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struct gb_control *gb_control_get(struct gb_control *control);
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void gb_control_put(struct gb_control *control);
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int gb_control_get_bundle_versions(struct gb_control *control);
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int gb_control_connected_operation(struct gb_control *control, u16 cport_id);
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int gb_control_disconnected_operation(struct gb_control *control, u16 cport_id);
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int gb_control_disconnecting_operation(struct gb_control *control,
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u16 cport_id);
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int gb_control_mode_switch_operation(struct gb_control *control);
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void gb_control_mode_switch_prepare(struct gb_control *control);
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void gb_control_mode_switch_complete(struct gb_control *control);
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int gb_control_get_manifest_size_operation(struct gb_interface *intf);
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int gb_control_get_manifest_operation(struct gb_interface *intf, void *manifest,
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size_t size);
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int gb_control_timesync_enable(struct gb_control *control, u8 count,
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u64 frame_time, u32 strobe_delay, u32 refclk);
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int gb_control_timesync_disable(struct gb_control *control);
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int gb_control_timesync_get_last_event(struct gb_control *control,
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u64 *frame_time);
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int gb_control_timesync_authoritative(struct gb_control *control,
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u64 *frame_time);
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int gb_control_bundle_suspend(struct gb_control *control, u8 bundle_id);
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int gb_control_bundle_resume(struct gb_control *control, u8 bundle_id);
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int gb_control_bundle_deactivate(struct gb_control *control, u8 bundle_id);
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int gb_control_bundle_activate(struct gb_control *control, u8 bundle_id);
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int gb_control_interface_suspend_prepare(struct gb_control *control);
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int gb_control_interface_deactivate_prepare(struct gb_control *control);
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int gb_control_interface_hibernate_abort(struct gb_control *control);
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#endif /* __CONTROL_H */
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