From c1464a885444dd7e9c4491177ee102b64adc46c5 Mon Sep 17 00:00:00 2001 From: Eliot Blennerhassett Date: Thu, 20 Nov 2014 16:22:52 +1300 Subject: [PATCH] ALSA: asihpi: Refactor control cache code. Signed-off-by: Eliot Blennerhassett Signed-off-by: Takashi Iwai --- sound/pci/asihpi/hpicmn.c | 107 ++++++++++++++++++++++---------------- 1 file changed, 63 insertions(+), 44 deletions(-) diff --git a/sound/pci/asihpi/hpicmn.c b/sound/pci/asihpi/hpicmn.c index 7ed5c26c3737..c7751243dc42 100644 --- a/sound/pci/asihpi/hpicmn.c +++ b/sound/pci/asihpi/hpicmn.c @@ -1,7 +1,7 @@ /****************************************************************************** AudioScience HPI driver - Copyright (C) 1997-2011 AudioScience Inc. + Copyright (C) 1997-2014 AudioScience Inc. 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; } -/** 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, +short hpi_check_control_cache(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; + return 0; } - /* 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; + 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. - switch (pI->control_type) { +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_single(struct hpi_control_cache_single + *pC, struct hpi_message *phm, struct hpi_response *phr) +{ + 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; -- 2.39.5