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PMC is a hardware debug mechanism which allows capturing real time debug data and stream it to host memory. The driver allocates memory buffers and set them inside PMC ring of descriptors. Add pmcring debugfs that application can use to read the binary content of descriptors inside the PMC ring (cat pmcring). Signed-off-by: Dedy Lansky <dlansky@codeaurora.org> Signed-off-by: Maya Erez <merez@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
29 lines
1.3 KiB
C
29 lines
1.3 KiB
C
/*
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* Copyright (c) 2012-2015 Qualcomm Atheros, Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <linux/types.h>
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#define PCM_DATA_INVALID_DW_VAL (0xB0BA0000)
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void wil_pmc_init(struct wil6210_priv *wil);
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void wil_pmc_alloc(struct wil6210_priv *wil,
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int num_descriptors, int descriptor_size);
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void wil_pmc_free(struct wil6210_priv *wil, int send_pmc_cmd);
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int wil_pmc_last_cmd_status(struct wil6210_priv *wil);
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ssize_t wil_pmc_read(struct file *, char __user *, size_t, loff_t *);
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loff_t wil_pmc_llseek(struct file *filp, loff_t off, int whence);
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int wil_pmcring_read(struct seq_file *s, void *data);
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