ALSA: asihpi: Refactor control cache code.

Signed-off-by: Eliot Blennerhassett <eliot@blennerhassett.gen.nz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Eliot Blennerhassett 2014-11-20 16:22:52 +13:00 committed by Takashi Iwai
parent e51c58c982
commit c1464a8854
1 changed files with 67 additions and 48 deletions

View File

@ -1,7 +1,7 @@
/******************************************************************************
AudioScience HPI driver
Copyright (C) 1997-2011 AudioScience Inc. <support@audioscience.com>
Copyright (C) 1997-2014 AudioScience Inc. <support@audioscience.com>
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as
@ -206,6 +206,14 @@ static unsigned int control_cache_alloc_check(struct hpi_control_cache *pC)
struct hpi_control_cache_info *info =
(struct hpi_control_cache_info *)
&p_master_cache[byte_count];
u16 control_index = info->control_index;
if (control_index >= pC->control_count) {
HPI_DEBUG_LOG(INFO,
"adap %d control index %d out of range, cache not ready?\n",
pC->adap_idx, control_index);
return 0;
}
if (!info->size_in32bit_words) {
if (!i) {
@ -225,10 +233,10 @@ static unsigned int control_cache_alloc_check(struct hpi_control_cache *pC)
}
if (info->control_type) {
pC->p_info[info->control_index] = info;
pC->p_info[control_index] = info;
cached++;
} else { /* dummy cache entry */
pC->p_info[info->control_index] = NULL;
pC->p_info[control_index] = NULL;
}
byte_count += info->size_in32bit_words * 4;
@ -309,35 +317,18 @@ static const struct pad_ofs_size pad_desc[] = {
/** CheckControlCache checks the cache and fills the struct hpi_response
* accordingly. It returns one if a cache hit occurred, zero otherwise.
*/
short hpi_check_control_cache(struct hpi_control_cache *p_cache,
short hpi_check_control_cache_single(struct hpi_control_cache_single *pC,
struct hpi_message *phm, struct hpi_response *phr)
{
short found = 1;
struct hpi_control_cache_info *pI;
struct hpi_control_cache_single *pC;
size_t response_size;
if (!find_control(phm->obj_index, p_cache, &pI)) {
HPI_DEBUG_LOG(VERBOSE,
"HPICMN find_control() failed for adap %d\n",
phm->adapter_index);
return 0;
}
phr->error = 0;
phr->specific_error = 0;
phr->version = 0;
short found = 1;
/* set the default response size */
response_size =
sizeof(struct hpi_response_header) +
sizeof(struct hpi_control_res);
/* pC is the default cached control strucure. May be cast to
something else in the following switch statement.
*/
pC = (struct hpi_control_cache_single *)pI;
switch (pI->control_type) {
switch (pC->u.i.control_type) {
case HPI_CONTROL_METER:
if (phm->u.c.attribute == HPI_METER_PEAK) {
@ -467,7 +458,7 @@ short hpi_check_control_cache(struct hpi_control_cache *p_cache,
break;
case HPI_CONTROL_PAD:{
struct hpi_control_cache_pad *p_pad;
p_pad = (struct hpi_control_cache_pad *)pI;
p_pad = (struct hpi_control_cache_pad *)pC;
if (!(p_pad->field_valid_flags & (1 <<
HPI_CTL_ATTR_INDEX(phm->u.c.
@ -531,7 +522,8 @@ short hpi_check_control_cache(struct hpi_control_cache *p_cache,
HPI_DEBUG_LOG(VERBOSE, "%s Adap %d, Ctl %d, Type %d, Attr %d\n",
found ? "Cached" : "Uncached", phm->adapter_index,
pI->control_index, pI->control_type, phm->u.c.attribute);
pC->u.i.control_index, pC->u.i.control_type,
phm->u.c.attribute);
if (found) {
phr->size = (u16)response_size;
@ -543,34 +535,36 @@ short hpi_check_control_cache(struct hpi_control_cache *p_cache,
return found;
}
short hpi_check_control_cache(struct hpi_control_cache *p_cache,
struct hpi_message *phm, struct hpi_response *phr)
{
struct hpi_control_cache_info *pI;
if (!find_control(phm->obj_index, p_cache, &pI)) {
HPI_DEBUG_LOG(VERBOSE,
"HPICMN find_control() failed for adap %d\n",
phm->adapter_index);
return 0;
}
phr->error = 0;
phr->specific_error = 0;
phr->version = 0;
return hpi_check_control_cache_single((struct hpi_control_cache_single
*)pI, phm, phr);
}
/** Updates the cache with Set values.
Only update if no error.
Volume and Level return the limited values in the response, so use these
Multiplexer does so use sent values
*/
void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *p_cache,
struct hpi_message *phm, struct hpi_response *phr)
void hpi_cmn_control_cache_sync_to_msg_single(struct hpi_control_cache_single
*pC, struct hpi_message *phm, struct hpi_response *phr)
{
struct hpi_control_cache_single *pC;
struct hpi_control_cache_info *pI;
if (phr->error)
return;
if (!find_control(phm->obj_index, p_cache, &pI)) {
HPI_DEBUG_LOG(VERBOSE,
"HPICMN find_control() failed for adap %d\n",
phm->adapter_index);
return;
}
/* pC is the default cached control strucure.
May be cast to something else in the following switch statement.
*/
pC = (struct hpi_control_cache_single *)pI;
switch (pI->control_type) {
switch (pC->u.i.control_type) {
case HPI_CONTROL_VOLUME:
if (phm->u.c.attribute == HPI_VOLUME_GAIN) {
pC->u.vol.an_log[0] = phr->u.c.an_log_value[0];
@ -625,6 +619,30 @@ void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *p_cache,
}
}
void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *p_cache,
struct hpi_message *phm, struct hpi_response *phr)
{
struct hpi_control_cache_single *pC;
struct hpi_control_cache_info *pI;
if (phr->error)
return;
if (!find_control(phm->obj_index, p_cache, &pI)) {
HPI_DEBUG_LOG(VERBOSE,
"HPICMN find_control() failed for adap %d\n",
phm->adapter_index);
return;
}
/* pC is the default cached control strucure.
May be cast to something else in the following switch statement.
*/
pC = (struct hpi_control_cache_single *)pI;
hpi_cmn_control_cache_sync_to_msg_single(pC, phm, phr);
}
/** Allocate control cache.
\return Cache pointer, or NULL if allocation fails.
@ -637,12 +655,13 @@ struct hpi_control_cache *hpi_alloc_control_cache(const u32 control_count,
if (!p_cache)
return NULL;
p_cache->p_info = kcalloc(control_count, sizeof(*p_cache->p_info),
GFP_KERNEL);
p_cache->p_info =
kcalloc(control_count, sizeof(*p_cache->p_info), GFP_KERNEL);
if (!p_cache->p_info) {
kfree(p_cache);
return NULL;
}
p_cache->cache_size_in_bytes = size_in_bytes;
p_cache->control_count = control_count;
p_cache->p_cache = p_dsp_control_buffer;