62 lines
2.3 KiB
C
62 lines
2.3 KiB
C
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/* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _MSM_TSPP_H_
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#define _MSM_TSPP_H_
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#include <linux/tspp.h> /* tspp_source */
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struct msm_tspp_platform_data {
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int num_gpios;
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const struct msm_gpio *gpios;
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const char *tsif_pclk;
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const char *tsif_ref_clk;
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int tsif_vreg_present;
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};
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struct tspp_data_descriptor {
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void *virt_base; /* logical address of the actual data */
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u32 phys_base; /* physical address of the actual data */
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u32 size; /* size of buffer in bytes */
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int id; /* unique identifier */
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void *user; /* user-defined data */
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};
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typedef void (tspp_notifier)(int channel_id, void *user);
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typedef void* (tspp_allocator)(int channel_id, u32 size,
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u32 *phys_base, void *user);
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typedef void (tspp_memfree)(int channel_id, u32 size,
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void *virt_base, u32 phys_base, void *user);
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/* Kernel API functions */
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int tspp_open_stream(u32 dev, u32 channel_id,
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struct tspp_select_source *source);
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int tspp_close_stream(u32 dev, u32 channel_id);
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int tspp_open_channel(u32 dev, u32 channel_id);
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int tspp_close_channel(u32 dev, u32 channel_id);
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int tspp_get_ref_clk_counter(u32 dev,
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enum tspp_source source, u32 *tcr_counter);
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int tspp_add_filter(u32 dev, u32 channel_id, struct tspp_filter *filter);
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int tspp_remove_filter(u32 dev, u32 channel_id, struct tspp_filter *filter);
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int tspp_set_key(u32 dev, u32 channel_id, struct tspp_key *key);
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int tspp_register_notification(u32 dev, u32 channel_id, tspp_notifier *notify,
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void *data, u32 timer_ms);
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int tspp_unregister_notification(u32 dev, u32 channel_id);
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const struct tspp_data_descriptor *tspp_get_buffer(u32 dev, u32 channel_id);
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int tspp_release_buffer(u32 dev, u32 channel_id, u32 descriptor_id);
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int tspp_allocate_buffers(u32 dev, u32 channel_id, u32 count,
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u32 size, u32 int_freq, tspp_allocator *alloc,
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tspp_memfree *memfree, void *user);
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#endif /* _MSM_TSPP_H_ */
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