cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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fireworks_proc.c (6665B)


      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * fireworks_proc.c - a part of driver for Fireworks based devices
      4 *
      5 * Copyright (c) 2009-2010 Clemens Ladisch
      6 * Copyright (c) 2013-2014 Takashi Sakamoto
      7 */
      8
      9#include "./fireworks.h"
     10
     11static inline const char*
     12get_phys_name(struct snd_efw_phys_grp *grp, bool input)
     13{
     14	static const char *const ch_type[] = {
     15		"Analog", "S/PDIF", "ADAT", "S/PDIF or ADAT", "Mirroring",
     16		"Headphones", "I2S", "Guitar", "Pirzo Guitar", "Guitar String",
     17	};
     18
     19	if (grp->type < ARRAY_SIZE(ch_type))
     20		return ch_type[grp->type];
     21	else if (input)
     22		return "Input";
     23	else
     24		return "Output";
     25}
     26
     27static void
     28proc_read_hwinfo(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
     29{
     30	struct snd_efw *efw = entry->private_data;
     31	unsigned short i;
     32	struct snd_efw_hwinfo *hwinfo;
     33
     34	hwinfo = kmalloc(sizeof(struct snd_efw_hwinfo), GFP_KERNEL);
     35	if (hwinfo == NULL)
     36		return;
     37
     38	if (snd_efw_command_get_hwinfo(efw, hwinfo) < 0)
     39		goto end;
     40
     41	snd_iprintf(buffer, "guid_hi: 0x%X\n", hwinfo->guid_hi);
     42	snd_iprintf(buffer, "guid_lo: 0x%X\n", hwinfo->guid_lo);
     43	snd_iprintf(buffer, "type: 0x%X\n", hwinfo->type);
     44	snd_iprintf(buffer, "version: 0x%X\n", hwinfo->version);
     45	snd_iprintf(buffer, "vendor_name: %s\n", hwinfo->vendor_name);
     46	snd_iprintf(buffer, "model_name: %s\n", hwinfo->model_name);
     47
     48	snd_iprintf(buffer, "dsp_version: 0x%X\n", hwinfo->dsp_version);
     49	snd_iprintf(buffer, "arm_version: 0x%X\n", hwinfo->arm_version);
     50	snd_iprintf(buffer, "fpga_version: 0x%X\n", hwinfo->fpga_version);
     51
     52	snd_iprintf(buffer, "flags: 0x%X\n", hwinfo->flags);
     53
     54	snd_iprintf(buffer, "max_sample_rate: 0x%X\n", hwinfo->max_sample_rate);
     55	snd_iprintf(buffer, "min_sample_rate: 0x%X\n", hwinfo->min_sample_rate);
     56	snd_iprintf(buffer, "supported_clock: 0x%X\n",
     57		    hwinfo->supported_clocks);
     58
     59	snd_iprintf(buffer, "phys out: 0x%X\n", hwinfo->phys_out);
     60	snd_iprintf(buffer, "phys in: 0x%X\n", hwinfo->phys_in);
     61
     62	snd_iprintf(buffer, "phys in grps: 0x%X\n",
     63		    hwinfo->phys_in_grp_count);
     64	for (i = 0; i < hwinfo->phys_in_grp_count; i++) {
     65		snd_iprintf(buffer,
     66			    "phys in grp[%d]: type 0x%X, count 0x%X\n",
     67			    i, hwinfo->phys_out_grps[i].type,
     68			    hwinfo->phys_out_grps[i].count);
     69	}
     70
     71	snd_iprintf(buffer, "phys out grps: 0x%X\n",
     72		    hwinfo->phys_out_grp_count);
     73	for (i = 0; i < hwinfo->phys_out_grp_count; i++) {
     74		snd_iprintf(buffer,
     75			    "phys out grps[%d]: type 0x%X, count 0x%X\n",
     76			    i, hwinfo->phys_out_grps[i].type,
     77			    hwinfo->phys_out_grps[i].count);
     78	}
     79
     80	snd_iprintf(buffer, "amdtp rx pcm channels 1x: 0x%X\n",
     81		    hwinfo->amdtp_rx_pcm_channels);
     82	snd_iprintf(buffer, "amdtp tx pcm channels 1x: 0x%X\n",
     83		    hwinfo->amdtp_tx_pcm_channels);
     84	snd_iprintf(buffer, "amdtp rx pcm channels 2x: 0x%X\n",
     85		    hwinfo->amdtp_rx_pcm_channels_2x);
     86	snd_iprintf(buffer, "amdtp tx pcm channels 2x: 0x%X\n",
     87		    hwinfo->amdtp_tx_pcm_channels_2x);
     88	snd_iprintf(buffer, "amdtp rx pcm channels 4x: 0x%X\n",
     89		    hwinfo->amdtp_rx_pcm_channels_4x);
     90	snd_iprintf(buffer, "amdtp tx pcm channels 4x: 0x%X\n",
     91		    hwinfo->amdtp_tx_pcm_channels_4x);
     92
     93	snd_iprintf(buffer, "midi out ports: 0x%X\n", hwinfo->midi_out_ports);
     94	snd_iprintf(buffer, "midi in ports: 0x%X\n", hwinfo->midi_in_ports);
     95
     96	snd_iprintf(buffer, "mixer playback channels: 0x%X\n",
     97		    hwinfo->mixer_playback_channels);
     98	snd_iprintf(buffer, "mixer capture channels: 0x%X\n",
     99		    hwinfo->mixer_capture_channels);
    100end:
    101	kfree(hwinfo);
    102}
    103
    104static void
    105proc_read_clock(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
    106{
    107	struct snd_efw *efw = entry->private_data;
    108	enum snd_efw_clock_source clock_source;
    109	unsigned int sampling_rate;
    110
    111	if (snd_efw_command_get_clock_source(efw, &clock_source) < 0)
    112		return;
    113
    114	if (snd_efw_command_get_sampling_rate(efw, &sampling_rate) < 0)
    115		return;
    116
    117	snd_iprintf(buffer, "Clock Source: %d\n", clock_source);
    118	snd_iprintf(buffer, "Sampling Rate: %d\n", sampling_rate);
    119}
    120
    121/*
    122 * NOTE:
    123 *  dB = 20 * log10(linear / 0x01000000)
    124 *  -144.0 dB when linear is 0
    125 */
    126static void
    127proc_read_phys_meters(struct snd_info_entry *entry,
    128		      struct snd_info_buffer *buffer)
    129{
    130	struct snd_efw *efw = entry->private_data;
    131	struct snd_efw_phys_meters *meters;
    132	unsigned int g, c, m, max, size;
    133	const char *name;
    134	u32 *linear;
    135	int err;
    136
    137	size = sizeof(struct snd_efw_phys_meters) +
    138	       (efw->phys_in + efw->phys_out) * sizeof(u32);
    139	meters = kzalloc(size, GFP_KERNEL);
    140	if (meters == NULL)
    141		return;
    142
    143	err = snd_efw_command_get_phys_meters(efw, meters, size);
    144	if (err < 0)
    145		goto end;
    146
    147	snd_iprintf(buffer, "Physical Meters:\n");
    148
    149	m = 0;
    150	max = min(efw->phys_out, meters->out_meters);
    151	linear = meters->values;
    152	snd_iprintf(buffer, " %d Outputs:\n", max);
    153	for (g = 0; g < efw->phys_out_grp_count; g++) {
    154		name = get_phys_name(&efw->phys_out_grps[g], false);
    155		for (c = 0; c < efw->phys_out_grps[g].count; c++) {
    156			if (m < max)
    157				snd_iprintf(buffer, "\t%s [%d]: %d\n",
    158					    name, c, linear[m++]);
    159		}
    160	}
    161
    162	m = 0;
    163	max = min(efw->phys_in, meters->in_meters);
    164	linear = meters->values + meters->out_meters;
    165	snd_iprintf(buffer, " %d Inputs:\n", max);
    166	for (g = 0; g < efw->phys_in_grp_count; g++) {
    167		name = get_phys_name(&efw->phys_in_grps[g], true);
    168		for (c = 0; c < efw->phys_in_grps[g].count; c++)
    169			if (m < max)
    170				snd_iprintf(buffer, "\t%s [%d]: %d\n",
    171					    name, c, linear[m++]);
    172	}
    173end:
    174	kfree(meters);
    175}
    176
    177static void
    178proc_read_queues_state(struct snd_info_entry *entry,
    179		       struct snd_info_buffer *buffer)
    180{
    181	struct snd_efw *efw = entry->private_data;
    182	unsigned int consumed;
    183
    184	if (efw->pull_ptr > efw->push_ptr)
    185		consumed = snd_efw_resp_buf_size -
    186			   (unsigned int)(efw->pull_ptr - efw->push_ptr);
    187	else
    188		consumed = (unsigned int)(efw->push_ptr - efw->pull_ptr);
    189
    190	snd_iprintf(buffer, "%d/%d\n",
    191		    consumed, snd_efw_resp_buf_size);
    192}
    193
    194static void
    195add_node(struct snd_efw *efw, struct snd_info_entry *root, const char *name,
    196	 void (*op)(struct snd_info_entry *e, struct snd_info_buffer *b))
    197{
    198	struct snd_info_entry *entry;
    199
    200	entry = snd_info_create_card_entry(efw->card, name, root);
    201	if (entry)
    202		snd_info_set_text_ops(entry, efw, op);
    203}
    204
    205void snd_efw_proc_init(struct snd_efw *efw)
    206{
    207	struct snd_info_entry *root;
    208
    209	/*
    210	 * All nodes are automatically removed at snd_card_disconnect(),
    211	 * by following to link list.
    212	 */
    213	root = snd_info_create_card_entry(efw->card, "firewire",
    214					  efw->card->proc_root);
    215	if (root == NULL)
    216		return;
    217	root->mode = S_IFDIR | 0555;
    218
    219	add_node(efw, root, "clock", proc_read_clock);
    220	add_node(efw, root, "firmware", proc_read_hwinfo);
    221	add_node(efw, root, "meters", proc_read_phys_meters);
    222	add_node(efw, root, "queues", proc_read_queues_state);
    223}