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-rw-r--r--sound/pci/asihpi/hpicmn.c643
1 files changed, 643 insertions, 0 deletions
diff --git a/sound/pci/asihpi/hpicmn.c b/sound/pci/asihpi/hpicmn.c
new file mode 100644
index 00000000000..565102cae4f
--- /dev/null
+++ b/sound/pci/asihpi/hpicmn.c
@@ -0,0 +1,643 @@
+/******************************************************************************
+
+ AudioScience HPI driver
+ Copyright (C) 1997-2010 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
+ published by the Free Software Foundation;
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+\file hpicmn.c
+
+ Common functions used by hpixxxx.c modules
+
+(C) Copyright AudioScience Inc. 1998-2003
+*******************************************************************************/
+#define SOURCEFILE_NAME "hpicmn.c"
+
+#include "hpi_internal.h"
+#include "hpidebug.h"
+#include "hpicmn.h"
+
+struct hpi_adapters_list {
+ struct hpios_spinlock list_lock;
+ struct hpi_adapter_obj adapter[HPI_MAX_ADAPTERS];
+ u16 gw_num_adapters;
+};
+
+static struct hpi_adapters_list adapters;
+
+/**
+* Given an HPI Message that was sent out and a response that was received,
+* validate that the response has the correct fields filled in,
+* i.e ObjectType, Function etc
+**/
+u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr)
+{
+ u16 error = 0;
+
+ if ((phr->type != HPI_TYPE_RESPONSE)
+ || (phr->object != phm->object)
+ || (phr->function != phm->function))
+ error = HPI_ERROR_INVALID_RESPONSE;
+
+ return error;
+}
+
+u16 hpi_add_adapter(struct hpi_adapter_obj *pao)
+{
+ u16 retval = 0;
+ /*HPI_ASSERT(pao->wAdapterType); */
+
+ hpios_alistlock_lock(&adapters);
+
+ if (pao->index >= HPI_MAX_ADAPTERS) {
+ retval = HPI_ERROR_BAD_ADAPTER_NUMBER;
+ goto unlock;
+ }
+
+ if (adapters.adapter[pao->index].adapter_type) {
+ {
+ retval = HPI_DUPLICATE_ADAPTER_NUMBER;
+ goto unlock;
+ }
+ }
+ adapters.adapter[pao->index] = *pao;
+ hpios_dsplock_init(&adapters.adapter[pao->index]);
+ adapters.gw_num_adapters++;
+
+unlock:
+ hpios_alistlock_un_lock(&adapters);
+ return retval;
+}
+
+void hpi_delete_adapter(struct hpi_adapter_obj *pao)
+{
+ memset(pao, 0, sizeof(struct hpi_adapter_obj));
+
+ hpios_alistlock_lock(&adapters);
+ adapters.gw_num_adapters--; /* dec the number of adapters */
+ hpios_alistlock_un_lock(&adapters);
+}
+
+/**
+* FindAdapter returns a pointer to the struct hpi_adapter_obj with
+* index wAdapterIndex in an HPI_ADAPTERS_LIST structure.
+*
+*/
+struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index)
+{
+ struct hpi_adapter_obj *pao = NULL;
+
+ if (adapter_index >= HPI_MAX_ADAPTERS) {
+ HPI_DEBUG_LOG(VERBOSE, "find_adapter invalid index %d ",
+ adapter_index);
+ return NULL;
+ }
+
+ pao = &adapters.adapter[adapter_index];
+ if (pao->adapter_type != 0) {
+ /*
+ HPI_DEBUG_LOG(VERBOSE, "Found adapter index %d\n",
+ wAdapterIndex);
+ */
+ return pao;
+ } else {
+ /*
+ HPI_DEBUG_LOG(VERBOSE, "No adapter index %d\n",
+ wAdapterIndex);
+ */
+ return NULL;
+ }
+}
+
+/**
+*
+* wipe an HPI_ADAPTERS_LIST structure.
+*
+**/
+static void wipe_adapter_list(void
+ )
+{
+ memset(&adapters, 0, sizeof(adapters));
+}
+
+/**
+* SubSysGetAdapters fills awAdapterList in an struct hpi_response structure
+* with all adapters in the given HPI_ADAPTERS_LIST.
+*
+*/
+static void subsys_get_adapters(struct hpi_response *phr)
+{
+ /* fill in the response adapter array with the position */
+ /* identified by the adapter number/index of the adapters in */
+ /* this HPI */
+ /* i.e. if we have an A120 with it's jumper set to */
+ /* Adapter Number 2 then put an Adapter type A120 in the */
+ /* array in position 1 */
+ /* NOTE: AdapterNumber is 1..N, Index is 0..N-1 */
+
+ /* input: NONE */
+ /* output: wNumAdapters */
+ /* awAdapter[] */
+ /* */
+
+ short i;
+ struct hpi_adapter_obj *pao = NULL;
+
+ HPI_DEBUG_LOG(VERBOSE, "subsys_get_adapters\n");
+
+ /* for each adapter, place it's type in the position of the array */
+ /* corresponding to it's adapter number */
+ for (i = 0; i < adapters.gw_num_adapters; i++) {
+ pao = &adapters.adapter[i];
+ if (phr->u.s.aw_adapter_list[pao->index] != 0) {
+ phr->error = HPI_DUPLICATE_ADAPTER_NUMBER;
+ phr->specific_error = pao->index;
+ return;
+ }
+ phr->u.s.aw_adapter_list[pao->index] = pao->adapter_type;
+ }
+
+ phr->u.s.num_adapters = adapters.gw_num_adapters;
+ phr->error = 0; /* the function completed OK; */
+}
+
+static unsigned int control_cache_alloc_check(struct hpi_control_cache *pC)
+{
+ unsigned int i;
+ int cached = 0;
+ if (!pC)
+ return 0;
+ if ((!pC->init) && (pC->p_cache != NULL) && (pC->control_count)
+ && (pC->cache_size_in_bytes)
+ ) {
+ u32 *p_master_cache;
+ pC->init = 1;
+
+ p_master_cache = (u32 *)pC->p_cache;
+ HPI_DEBUG_LOG(VERBOSE, "check %d controls\n",
+ pC->control_count);
+ for (i = 0; i < pC->control_count; i++) {
+ struct hpi_control_cache_info *info =
+ (struct hpi_control_cache_info *)
+ p_master_cache;
+
+ if (info->control_type) {
+ pC->p_info[i] = info;
+ cached++;
+ } else
+ pC->p_info[i] = NULL;
+
+ if (info->size_in32bit_words)
+ p_master_cache += info->size_in32bit_words;
+ else
+ p_master_cache +=
+ sizeof(struct
+ hpi_control_cache_single) /
+ sizeof(u32);
+
+ HPI_DEBUG_LOG(VERBOSE,
+ "cached %d, pinfo %p index %d type %d\n",
+ cached, pC->p_info[i], info->control_index,
+ info->control_type);
+ }
+ /*
+ We didn't find anything to cache, so try again later !
+ */
+ if (!cached)
+ pC->init = 0;
+ }
+ return pC->init;
+}
+
+/** Find a control.
+*/
+static short find_control(struct hpi_message *phm,
+ struct hpi_control_cache *p_cache, struct hpi_control_cache_info **pI,
+ u16 *pw_control_index)
+{
+ *pw_control_index = phm->obj_index;
+
+ if (!control_cache_alloc_check(p_cache)) {
+ HPI_DEBUG_LOG(VERBOSE,
+ "control_cache_alloc_check() failed. adap%d ci%d\n",
+ phm->adapter_index, *pw_control_index);
+ return 0;
+ }
+
+ *pI = p_cache->p_info[*pw_control_index];
+ if (!*pI) {
+ HPI_DEBUG_LOG(VERBOSE, "uncached adap %d, control %d\n",
+ phm->adapter_index, *pw_control_index);
+ return 0;
+ } else {
+ HPI_DEBUG_LOG(VERBOSE, "find_control() type %d\n",
+ (*pI)->control_type);
+ }
+ return 1;
+}
+
+/** Used by the kernel driver to figure out if a buffer needs mapping.
+ */
+short hpi_check_buffer_mapping(struct hpi_control_cache *p_cache,
+ struct hpi_message *phm, void **p, unsigned int *pN)
+{
+ *pN = 0;
+ *p = NULL;
+ if ((phm->function == HPI_CONTROL_GET_STATE)
+ && (phm->object == HPI_OBJ_CONTROLEX)
+ ) {
+ u16 control_index;
+ struct hpi_control_cache_info *pI;
+
+ if (!find_control(phm, p_cache, &pI, &control_index))
+ return 0;
+ }
+ return 0;
+}
+
+/* allow unified treatment of several string fields within struct */
+#define HPICMN_PAD_OFS_AND_SIZE(m) {\
+ offsetof(struct hpi_control_cache_pad, m), \
+ sizeof(((struct hpi_control_cache_pad *)(NULL))->m) }
+
+struct pad_ofs_size {
+ unsigned int offset;
+ unsigned int field_size;
+};
+
+static struct pad_ofs_size pad_desc[] = {
+ HPICMN_PAD_OFS_AND_SIZE(c_channel), /* HPI_PAD_CHANNEL_NAME */
+ HPICMN_PAD_OFS_AND_SIZE(c_artist), /* HPI_PAD_ARTIST */
+ HPICMN_PAD_OFS_AND_SIZE(c_title), /* HPI_PAD_TITLE */
+ HPICMN_PAD_OFS_AND_SIZE(c_comment), /* HPI_PAD_COMMENT */
+};
+
+/** 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,
+ struct hpi_message *phm, struct hpi_response *phr)
+{
+ short found = 1;
+ u16 control_index;
+ struct hpi_control_cache_info *pI;
+ struct hpi_control_cache_single *pC;
+ struct hpi_control_cache_pad *p_pad;
+
+ if (!find_control(phm, p_cache, &pI, &control_index))
+ return 0;
+
+ phr->error = 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;
+ p_pad = (struct hpi_control_cache_pad *)pI;
+
+ switch (pI->control_type) {
+
+ case HPI_CONTROL_METER:
+ if (phm->u.c.attribute == HPI_METER_PEAK) {
+ phr->u.c.an_log_value[0] = pC->u.p.an_log_peak[0];
+ phr->u.c.an_log_value[1] = pC->u.p.an_log_peak[1];
+ } else if (phm->u.c.attribute == HPI_METER_RMS) {
+ phr->u.c.an_log_value[0] = pC->u.p.an_logRMS[0];
+ phr->u.c.an_log_value[1] = pC->u.p.an_logRMS[1];
+ } else
+ found = 0;
+ break;
+ case HPI_CONTROL_VOLUME:
+ if (phm->u.c.attribute == HPI_VOLUME_GAIN) {
+ phr->u.c.an_log_value[0] = pC->u.v.an_log[0];
+ phr->u.c.an_log_value[1] = pC->u.v.an_log[1];
+ } else
+ found = 0;
+ break;
+ case HPI_CONTROL_MULTIPLEXER:
+ if (phm->u.c.attribute == HPI_MULTIPLEXER_SOURCE) {
+ phr->u.c.param1 = pC->u.x.source_node_type;
+ phr->u.c.param2 = pC->u.x.source_node_index;
+ } else {
+ found = 0;
+ }
+ break;
+ case HPI_CONTROL_CHANNEL_MODE:
+ if (phm->u.c.attribute == HPI_CHANNEL_MODE_MODE)
+ phr->u.c.param1 = pC->u.m.mode;
+ else
+ found = 0;
+ break;
+ case HPI_CONTROL_LEVEL:
+ if (phm->u.c.attribute == HPI_LEVEL_GAIN) {
+ phr->u.c.an_log_value[0] = pC->u.l.an_log[0];
+ phr->u.c.an_log_value[1] = pC->u.l.an_log[1];
+ } else
+ found = 0;
+ break;
+ case HPI_CONTROL_TUNER:
+ {
+ struct hpi_control_cache_single *pCT =
+ (struct hpi_control_cache_single *)pI;
+ if (phm->u.c.attribute == HPI_TUNER_FREQ)
+ phr->u.c.param1 = pCT->u.t.freq_ink_hz;
+ else if (phm->u.c.attribute == HPI_TUNER_BAND)
+ phr->u.c.param1 = pCT->u.t.band;
+ else if ((phm->u.c.attribute == HPI_TUNER_LEVEL)
+ && (phm->u.c.param1 ==
+ HPI_TUNER_LEVEL_AVERAGE))
+ phr->u.c.param1 = pCT->u.t.level;
+ else
+ found = 0;
+ }
+ break;
+ case HPI_CONTROL_AESEBU_RECEIVER:
+ if (phm->u.c.attribute == HPI_AESEBURX_ERRORSTATUS)
+ phr->u.c.param1 = pC->u.aes3rx.error_status;
+ else if (phm->u.c.attribute == HPI_AESEBURX_FORMAT)
+ phr->u.c.param1 = pC->u.aes3rx.source;
+ else
+ found = 0;
+ break;
+ case HPI_CONTROL_AESEBU_TRANSMITTER:
+ if (phm->u.c.attribute == HPI_AESEBUTX_FORMAT)
+ phr->u.c.param1 = pC->u.aes3tx.format;
+ else
+ found = 0;
+ break;
+ case HPI_CONTROL_TONEDETECTOR:
+ if (phm->u.c.attribute == HPI_TONEDETECTOR_STATE)
+ phr->u.c.param1 = pC->u.tone.state;
+ else
+ found = 0;
+ break;
+ case HPI_CONTROL_SILENCEDETECTOR:
+ if (phm->u.c.attribute == HPI_SILENCEDETECTOR_STATE) {
+ phr->u.c.param1 = pC->u.silence.state;
+ phr->u.c.param2 = pC->u.silence.count;
+ } else
+ found = 0;
+ break;
+ case HPI_CONTROL_MICROPHONE:
+ if (phm->u.c.attribute == HPI_MICROPHONE_PHANTOM_POWER)
+ phr->u.c.param1 = pC->u.phantom_power.state;
+ else
+ found = 0;
+ break;
+ case HPI_CONTROL_SAMPLECLOCK:
+ if (phm->u.c.attribute == HPI_SAMPLECLOCK_SOURCE)
+ phr->u.c.param1 = pC->u.clk.source;
+ else if (phm->u.c.attribute == HPI_SAMPLECLOCK_SOURCE_INDEX) {
+ if (pC->u.clk.source_index ==
+ HPI_ERROR_ILLEGAL_CACHE_VALUE) {
+ phr->u.c.param1 = 0;
+ phr->error = HPI_ERROR_INVALID_OPERATION;
+ } else
+ phr->u.c.param1 = pC->u.clk.source_index;
+ } else if (phm->u.c.attribute == HPI_SAMPLECLOCK_SAMPLERATE)
+ phr->u.c.param1 = pC->u.clk.sample_rate;
+ else
+ found = 0;
+ break;
+ case HPI_CONTROL_PAD:
+
+ if (!(p_pad->field_valid_flags & (1 <<
+ HPI_CTL_ATTR_INDEX(phm->u.c.
+ attribute)))) {
+ phr->error = HPI_ERROR_INVALID_CONTROL_ATTRIBUTE;
+ break;
+ }
+
+ if (phm->u.c.attribute == HPI_PAD_PROGRAM_ID)
+ phr->u.c.param1 = p_pad->pI;
+ else if (phm->u.c.attribute == HPI_PAD_PROGRAM_TYPE)
+ phr->u.c.param1 = p_pad->pTY;
+ else {
+ unsigned int index =
+ HPI_CTL_ATTR_INDEX(phm->u.c.attribute) - 1;
+ unsigned int offset = phm->u.c.param1;
+ unsigned int pad_string_len, field_size;
+ char *pad_string;
+ unsigned int tocopy;
+
+ HPI_DEBUG_LOG(VERBOSE, "PADS HPI_PADS_ %d\n",
+ phm->u.c.attribute);
+
+ if (index > ARRAY_SIZE(pad_desc) - 1) {
+ phr->error =
+ HPI_ERROR_INVALID_CONTROL_ATTRIBUTE;
+ break;
+ }
+
+ pad_string = ((char *)p_pad) + pad_desc[index].offset;
+ field_size = pad_desc[index].field_size;
+ /* Ensure null terminator */
+ pad_string[field_size - 1] = 0;
+
+ pad_string_len = strlen(pad_string) + 1;
+
+ if (offset > pad_string_len) {
+ phr->error = HPI_ERROR_INVALID_CONTROL_VALUE;
+ break;
+ }
+
+ tocopy = pad_string_len - offset;
+ if (tocopy > sizeof(phr->u.cu.chars8.sz_data))
+ tocopy = sizeof(phr->u.cu.chars8.sz_data);
+
+ HPI_DEBUG_LOG(VERBOSE,
+ "PADS memcpy(%d), offset %d \n", tocopy,
+ offset);
+ memcpy(phr->u.cu.chars8.sz_data, &pad_string[offset],
+ tocopy);
+
+ phr->u.cu.chars8.remaining_chars =
+ pad_string_len - offset - tocopy;
+ }
+ break;
+ default:
+ found = 0;
+ break;
+ }
+
+ if (found)
+ HPI_DEBUG_LOG(VERBOSE,
+ "cached adap %d, ctl %d, type %d, attr %d\n",
+ phm->adapter_index, pI->control_index,
+ pI->control_type, phm->u.c.attribute);
+ else
+ HPI_DEBUG_LOG(VERBOSE,
+ "uncached adap %d, ctl %d, ctl type %d\n",
+ phm->adapter_index, pI->control_index,
+ pI->control_type);
+
+ if (found)
+ phr->size =
+ sizeof(struct hpi_response_header) +
+ sizeof(struct hpi_control_res);
+
+ 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_sync_control_cache(struct hpi_control_cache *p_cache,
+ struct hpi_message *phm, struct hpi_response *phr)
+{
+ u16 control_index;
+ struct hpi_control_cache_single *pC;
+ struct hpi_control_cache_info *pI;
+
+ if (!find_control(phm, p_cache, &pI, &control_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) {
+ case HPI_CONTROL_VOLUME:
+ if (phm->u.c.attribute == HPI_VOLUME_GAIN) {
+ pC->u.v.an_log[0] = phr->u.c.an_log_value[0];
+ pC->u.v.an_log[1] = phr->u.c.an_log_value[1];
+ }
+ break;
+ case HPI_CONTROL_MULTIPLEXER:
+ /* mux does not return its setting on Set command. */
+ if (phr->error)
+ return;
+ if (phm->u.c.attribute == HPI_MULTIPLEXER_SOURCE) {
+ pC->u.x.source_node_type = (u16)phm->u.c.param1;
+ pC->u.x.source_node_index = (u16)phm->u.c.param2;
+ }
+ break;
+ case HPI_CONTROL_CHANNEL_MODE:
+ /* mode does not return its setting on Set command. */
+ if (phr->error)
+ return;
+ if (phm->u.c.attribute == HPI_CHANNEL_MODE_MODE)
+ pC->u.m.mode = (u16)phm->u.c.param1;
+ break;
+ case HPI_CONTROL_LEVEL:
+ if (phm->u.c.attribute == HPI_LEVEL_GAIN) {
+ pC->u.v.an_log[0] = phr->u.c.an_log_value[0];
+ pC->u.v.an_log[1] = phr->u.c.an_log_value[1];
+ }
+ break;
+ case HPI_CONTROL_MICROPHONE:
+ if (phm->u.c.attribute == HPI_MICROPHONE_PHANTOM_POWER)
+ pC->u.phantom_power.state = (u16)phm->u.c.param1;
+ break;
+ case HPI_CONTROL_AESEBU_TRANSMITTER:
+ if (phr->error)
+ return;
+ if (phm->u.c.attribute == HPI_AESEBUTX_FORMAT)
+ pC->u.aes3tx.format = phm->u.c.param1;
+ break;
+ case HPI_CONTROL_AESEBU_RECEIVER:
+ if (phr->error)
+ return;
+ if (phm->u.c.attribute == HPI_AESEBURX_FORMAT)
+ pC->u.aes3rx.source = phm->u.c.param1;
+ break;
+ case HPI_CONTROL_SAMPLECLOCK:
+ if (phr->error)
+ return;
+ if (phm->u.c.attribute == HPI_SAMPLECLOCK_SOURCE)
+ pC->u.clk.source = (u16)phm->u.c.param1;
+ else if (phm->u.c.attribute == HPI_SAMPLECLOCK_SOURCE_INDEX)
+ pC->u.clk.source_index = (u16)phm->u.c.param1;
+ else if (phm->u.c.attribute == HPI_SAMPLECLOCK_SAMPLERATE)
+ pC->u.clk.sample_rate = phm->u.c.param1;
+ break;
+ default:
+ break;
+ }
+}
+
+struct hpi_control_cache *hpi_alloc_control_cache(const u32
+ number_of_controls, const u32 size_in_bytes,
+ struct hpi_control_cache_info *pDSP_control_buffer)
+{
+ struct hpi_control_cache *p_cache =
+ kmalloc(sizeof(*p_cache), GFP_KERNEL);
+ p_cache->cache_size_in_bytes = size_in_bytes;
+ p_cache->control_count = number_of_controls;
+ p_cache->p_cache =
+ (struct hpi_control_cache_single *)pDSP_control_buffer;
+ p_cache->init = 0;
+ p_cache->p_info =
+ kmalloc(sizeof(*p_cache->p_info) * p_cache->control_count,
+ GFP_KERNEL);
+ return p_cache;
+}
+
+void hpi_free_control_cache(struct hpi_control_cache *p_cache)
+{
+ if ((p_cache->init) && (p_cache->p_info)) {
+ kfree(p_cache->p_info);
+ p_cache->p_info = NULL;
+ p_cache->init = 0;
+ kfree(p_cache);
+ }
+}
+
+static void subsys_message(struct hpi_message *phm, struct hpi_response *phr)
+{
+
+ switch (phm->function) {
+ case HPI_SUBSYS_OPEN:
+ case HPI_SUBSYS_CLOSE:
+ case HPI_SUBSYS_DRIVER_UNLOAD:
+ phr->error = 0;
+ break;
+ case HPI_SUBSYS_DRIVER_LOAD:
+ wipe_adapter_list();
+ hpios_alistlock_init(&adapters);
+ phr->error = 0;
+ break;
+ case HPI_SUBSYS_GET_INFO:
+ subsys_get_adapters(phr);
+ break;
+ case HPI_SUBSYS_CREATE_ADAPTER:
+ case HPI_SUBSYS_DELETE_ADAPTER:
+ phr->error = 0;
+ break;
+ default:
+ phr->error = HPI_ERROR_INVALID_FUNC;
+ break;
+ }
+}
+
+void HPI_COMMON(struct hpi_message *phm, struct hpi_response *phr)
+{
+ switch (phm->type) {
+ case HPI_TYPE_MESSAGE:
+ switch (phm->object) {
+ case HPI_OBJ_SUBSYSTEM:
+ subsys_message(phm, phr);
+ break;
+ }
+ break;
+
+ default:
+ phr->error = HPI_ERROR_INVALID_TYPE;
+ break;
+ }
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-15 11:22:10 +0000