tobi/M7350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
801e6d2ad8
M7350/kernel/arch/arm/mach-msm/qdsp6v2/rtac.c

1047 lines
27 KiB
C
Raw Normal View History

M7350v1_en_gpl
2024-09-09 08:52:07 +00:00
/* Copyright (c) 2011, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 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.
*
*/
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/miscdevice.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/mutex.h>
#include <linux/sched.h>
#include <linux/msm_audio_acdb.h>
#include <asm/atomic.h>
#include <mach/qdsp6v2/audio_acdb.h>
#include <mach/qdsp6v2/rtac.h>
#include "q6audio_common.h"
#include <sound/q6afe.h>
#ifndef CONFIG_RTAC
void rtac_add_adm_device(u32 port_id, u32 copp_id, u32 path_id, u32 popp_id) {}
void rtac_remove_adm_device(u32 port_id) {}
void rtac_remove_popp_from_adm_devices(u32 popp_id) {}
void rtac_set_adm_handle(void *handle) {}
bool rtac_make_adm_callback(uint32_t *payload, u32 payload_size)
{return false; }
void rtac_set_asm_handle(u32 session_id, void *handle) {}
bool rtac_make_asm_callback(u32 session_id, uint32_t *payload,
u32 payload_size) {return false; }
void rtac_add_voice(u32 cvs_handle, u32 cvp_handle, u32 rx_afe_port,
u32 tx_afe_port, u32 session_id) {}
void rtac_remove_voice(u32 cvs_handle) {}
void rtac_set_voice_handle(u32 mode, void *handle) {}
bool rtac_make_voice_callback(u32 mode, uint32_t *payload,
u32 payload_size) {return false; }
#else
#define VOICE_CMD_SET_PARAM 0x00011006
#define VOICE_CMD_GET_PARAM 0x00011007
#define VOICE_EVT_GET_PARAM_ACK 0x00011008
/* Max size of payload (buf size - apr header) */
#define MAX_PAYLOAD_SIZE 4076
#define RTAC_MAX_ACTIVE_DEVICES 4
#define RTAC_MAX_ACTIVE_VOICE_COMBOS 2
#define RTAC_MAX_ACTIVE_POPP 8
#define RTAC_BUF_SIZE 4096
#define TIMEOUT_MS 1000
/* APR data */
struct rtac_apr_data {
void *apr_handle;
atomic_t cmd_state;
wait_queue_head_t cmd_wait;
};
static struct rtac_apr_data rtac_adm_apr_data;
static struct rtac_apr_data rtac_asm_apr_data[SESSION_MAX+1];
static struct rtac_apr_data rtac_voice_apr_data[RTAC_VOICE_MODES];
/* ADM info & APR */
struct rtac_adm_data {
uint32_t topology_id;
uint32_t afe_port;
uint32_t copp;
uint32_t num_of_popp;
uint32_t popp[RTAC_MAX_ACTIVE_POPP];
};
struct rtac_adm {
uint32_t num_of_dev;
struct rtac_adm_data device[RTAC_MAX_ACTIVE_DEVICES];
};
static struct rtac_adm rtac_adm_data;
static u32 rtac_adm_payload_size;
static u32 rtac_adm_user_buf_size;
static u8 *rtac_adm_buffer;
/* ASM APR */
static u32 rtac_asm_payload_size;
static u32 rtac_asm_user_buf_size;
static u8 *rtac_asm_buffer;
/* Voice info & APR */
struct rtac_voice_data {
uint32_t tx_topology_id;
uint32_t rx_topology_id;
uint32_t tx_afe_port;
uint32_t rx_afe_port;
uint16_t cvs_handle;
uint16_t cvp_handle;
};
struct rtac_voice {
uint32_t num_of_voice_combos;
struct rtac_voice_data voice[RTAC_MAX_ACTIVE_VOICE_COMBOS];
};
static struct rtac_voice rtac_voice_data;
static u32 rtac_voice_payload_size;
static u32 rtac_voice_user_buf_size;
static u8 *rtac_voice_buffer;
static u32 voice_session_id[RTAC_MAX_ACTIVE_VOICE_COMBOS];
struct mutex rtac_adm_mutex;
struct mutex rtac_adm_apr_mutex;
struct mutex rtac_asm_apr_mutex;
struct mutex rtac_voice_mutex;
struct mutex rtac_voice_apr_mutex;
static int rtac_open(struct inode *inode, struct file *f)
{
pr_debug("%s\n", __func__);
return 0;
}
static int rtac_release(struct inode *inode, struct file *f)
{
pr_debug("%s\n", __func__);
return 0;
}
/* ADM Info */
void add_popp(u32 dev_idx, u32 port_id, u32 popp_id)
{
u32 i = 0;
for (; i < rtac_adm_data.device[dev_idx].num_of_popp; i++)
if (rtac_adm_data.device[dev_idx].popp[i] == popp_id)
goto done;
if (rtac_adm_data.device[dev_idx].num_of_popp ==
RTAC_MAX_ACTIVE_POPP) {
pr_err("%s, Max POPP!\n", __func__);
goto done;
}
rtac_adm_data.device[dev_idx].popp[
rtac_adm_data.device[dev_idx].num_of_popp++] = popp_id;
done:
return;
}
void rtac_add_adm_device(u32 port_id, u32 copp_id, u32 path_id, u32 popp_id)
{
u32 i = 0;
pr_debug("%s: port_id = %d, popp_id = %d\n", __func__, port_id,
popp_id);
mutex_lock(&rtac_adm_mutex);
if (rtac_adm_data.num_of_dev == RTAC_MAX_ACTIVE_DEVICES) {
pr_err("%s, Can't add anymore RTAC devices!\n", __func__);
goto done;
}
/* Check if device already added */
if (rtac_adm_data.num_of_dev != 0) {
for (; i < rtac_adm_data.num_of_dev; i++) {
if (rtac_adm_data.device[i].afe_port == port_id) {
add_popp(i, port_id, popp_id);
goto done;
}
if (rtac_adm_data.device[i].num_of_popp ==
RTAC_MAX_ACTIVE_POPP) {
pr_err("%s, Max POPP!\n", __func__);
goto done;
}
}
}
/* Add device */
rtac_adm_data.num_of_dev++;
if (path_id == ADM_PATH_PLAYBACK)
rtac_adm_data.device[i].topology_id =
get_adm_rx_topology();
else
rtac_adm_data.device[i].topology_id =
get_adm_tx_topology();
rtac_adm_data.device[i].afe_port = port_id;
rtac_adm_data.device[i].copp = copp_id;
rtac_adm_data.device[i].popp[
rtac_adm_data.device[i].num_of_popp++] = popp_id;
done:
mutex_unlock(&rtac_adm_mutex);
return;
}
static void shift_adm_devices(u32 dev_idx)
{
for (; dev_idx < rtac_adm_data.num_of_dev; dev_idx++) {
memcpy(&rtac_adm_data.device[dev_idx],
&rtac_adm_data.device[dev_idx + 1],
sizeof(rtac_adm_data.device[dev_idx]));
memset(&rtac_adm_data.device[dev_idx + 1], 0,
sizeof(rtac_adm_data.device[dev_idx]));
}
}
static void shift_popp(u32 copp_idx, u32 popp_idx)
{
for (; popp_idx < rtac_adm_data.device[copp_idx].num_of_popp;
popp_idx++) {
memcpy(&rtac_adm_data.device[copp_idx].popp[popp_idx],
&rtac_adm_data.device[copp_idx].popp[popp_idx + 1],
sizeof(uint32_t));
memset(&rtac_adm_data.device[copp_idx].popp[popp_idx + 1], 0,
sizeof(uint32_t));
}
}
void rtac_remove_adm_device(u32 port_id)
{
s32 i;
pr_debug("%s: port_id = %d\n", __func__, port_id);
mutex_lock(&rtac_adm_mutex);
/* look for device */
for (i = 0; i < rtac_adm_data.num_of_dev; i++) {
if (rtac_adm_data.device[i].afe_port == port_id) {
memset(&rtac_adm_data.device[i], 0,
sizeof(rtac_adm_data.device[i]));
rtac_adm_data.num_of_dev--;
if (rtac_adm_data.num_of_dev >= 1) {
shift_adm_devices(i);
break;
}
}
}
mutex_unlock(&rtac_adm_mutex);
return;
}
void rtac_remove_popp_from_adm_devices(u32 popp_id)
{
s32 i, j;
pr_debug("%s: popp_id = %d\n", __func__, popp_id);
mutex_lock(&rtac_adm_mutex);
for (i = 0; i < rtac_adm_data.num_of_dev; i++) {
for (j = 0; j < rtac_adm_data.device[i].num_of_popp; j++) {
if (rtac_adm_data.device[i].popp[j] == popp_id) {
rtac_adm_data.device[i].popp[j] = 0;
rtac_adm_data.device[i].num_of_popp--;
shift_popp(i, j);
}
}
}
mutex_unlock(&rtac_adm_mutex);
}
/* Voice Info */
static void set_rtac_voice_data(int idx, u32 cvs_handle, u32 cvp_handle,
u32 rx_afe_port, u32 tx_afe_port,
u32 session_id)
{
rtac_voice_data.voice[idx].tx_topology_id = get_voice_tx_topology();
rtac_voice_data.voice[idx].rx_topology_id = get_voice_rx_topology();
rtac_voice_data.voice[idx].tx_afe_port = tx_afe_port;
rtac_voice_data.voice[idx].rx_afe_port = rx_afe_port;
rtac_voice_data.voice[idx].cvs_handle = cvs_handle;
rtac_voice_data.voice[idx].cvp_handle = cvp_handle;
/* Store session ID for voice RTAC */
voice_session_id[idx] = session_id;
}
void rtac_add_voice(u32 cvs_handle, u32 cvp_handle, u32 rx_afe_port,
u32 tx_afe_port, u32 session_id)
{
u32 i = 0;
pr_debug("%s\n", __func__);
mutex_lock(&rtac_voice_mutex);
if (rtac_voice_data.num_of_voice_combos ==
RTAC_MAX_ACTIVE_VOICE_COMBOS) {
pr_err("%s, Can't add anymore RTAC devices!\n", __func__);
goto done;
}
/* Check if device already added */
if (rtac_voice_data.num_of_voice_combos != 0) {
for (; i < rtac_voice_data.num_of_voice_combos; i++) {
if (rtac_voice_data.voice[i].cvs_handle ==
cvs_handle) {
set_rtac_voice_data(i, cvs_handle, cvp_handle,
rx_afe_port, tx_afe_port,
session_id);
goto done;
}
}
}
/* Add device */
rtac_voice_data.num_of_voice_combos++;
set_rtac_voice_data(i, cvs_handle, cvp_handle,
rx_afe_port, tx_afe_port,
session_id);
done:
mutex_unlock(&rtac_voice_mutex);
return;
}
static void shift_voice_devices(u32 idx)
{
for (; idx < rtac_voice_data.num_of_voice_combos - 1; idx++) {
memcpy(&rtac_voice_data.voice[idx],
&rtac_voice_data.voice[idx + 1],
sizeof(rtac_voice_data.voice[idx]));
voice_session_id[idx] = voice_session_id[idx + 1];
}
}
void rtac_remove_voice(u32 cvs_handle)
{
u32 i = 0;
pr_debug("%s\n", __func__);
mutex_lock(&rtac_voice_mutex);
/* look for device */
for (i = 0; i < rtac_voice_data.num_of_voice_combos; i++) {
if (rtac_voice_data.voice[i].cvs_handle == cvs_handle) {
shift_voice_devices(i);
rtac_voice_data.num_of_voice_combos--;
memset(&rtac_voice_data.voice[
rtac_voice_data.num_of_voice_combos], 0,
sizeof(rtac_voice_data.voice
[rtac_voice_data.num_of_voice_combos]));
voice_session_id[rtac_voice_data.num_of_voice_combos]
= 0;
break;
}
}
mutex_unlock(&rtac_voice_mutex);
return;
}
static int get_voice_index_cvs(u32 cvs_handle)
{
u32 i;
for (i = 0; i < rtac_voice_data.num_of_voice_combos; i++) {
if (rtac_voice_data.voice[i].cvs_handle == cvs_handle)
return i;
}
pr_err("%s: No voice index for CVS handle %d found returning 0\n",
__func__, cvs_handle);
return 0;
}
static int get_voice_index_cvp(u32 cvp_handle)
{
u32 i;
for (i = 0; i < rtac_voice_data.num_of_voice_combos; i++) {
if (rtac_voice_data.voice[i].cvp_handle == cvp_handle)
return i;
}
pr_err("%s: No voice index for CVP handle %d found returning 0\n",
__func__, cvp_handle);
return 0;
}
static int get_voice_index(u32 mode, u32 handle)
{
if (mode == RTAC_CVP)
return get_voice_index_cvp(handle);
if (mode == RTAC_CVS)
return get_voice_index_cvs(handle);
pr_err("%s: Invalid mode %d, returning 0\n",
__func__, mode);
return 0;
}
/* ADM APR */
void rtac_set_adm_handle(void *handle)
{
pr_debug("%s: handle = %d\n", __func__, (unsigned int)handle);
mutex_lock(&rtac_adm_apr_mutex);
rtac_adm_apr_data.apr_handle = handle;
mutex_unlock(&rtac_adm_apr_mutex);
}
bool rtac_make_adm_callback(uint32_t *payload, u32 payload_size)
{
pr_debug("%s:cmd_state = %d\n", __func__,
atomic_read(&rtac_adm_apr_data.cmd_state));
if (atomic_read(&rtac_adm_apr_data.cmd_state) != 1)
return false;
/* Offset data for in-band payload */
rtac_copy_adm_payload_to_user(payload, payload_size);
atomic_set(&rtac_adm_apr_data.cmd_state, 0);
wake_up(&rtac_adm_apr_data.cmd_wait);
return true;
}
void rtac_copy_adm_payload_to_user(void *payload, u32 payload_size)
{
pr_debug("%s\n", __func__);
rtac_adm_payload_size = payload_size;
memcpy(rtac_adm_buffer, &payload_size, sizeof(u32));
if (payload_size != 0) {
if (payload_size > rtac_adm_user_buf_size) {
pr_err("%s: Buffer set not big enough for returned data, buf size = %d,ret data = %d\n",
__func__, rtac_adm_user_buf_size, payload_size);
goto done;
}
memcpy(rtac_adm_buffer + sizeof(u32), payload, payload_size);
}
done:
return;
}
u32 send_adm_apr(void *buf, u32 opcode)
{
s32 result;
u32 count = 0;
u32 bytes_returned = 0;
u32 port_index = 0;
u32 copp_id;
u32 payload_size;
struct apr_hdr adm_params;
pr_debug("%s\n", __func__);
if (copy_from_user(&count, (void *)buf, sizeof(count))) {
pr_err("%s: Copy to user failed! buf = 0x%x\n",
__func__, (unsigned int)buf);
result = -EFAULT;
goto done;
}
if (count <= 0) {
pr_err("%s: Invalid buffer size = %d\n", __func__, count);
goto done;
}
if (copy_from_user(&payload_size, buf + sizeof(u32), sizeof(u32))) {
pr_err("%s: Could not copy payload size from user buffer\n",
__func__);
goto done;
}
if (payload_size > MAX_PAYLOAD_SIZE) {
pr_err("%s: Invalid payload size = %d\n",
__func__, payload_size);
goto done;
}
if (copy_from_user(&copp_id, buf + 2 * sizeof(u32), sizeof(u32))) {
pr_err("%s: Could not copy port id from user buffer\n",
__func__);
goto done;
}
for (port_index = 0; port_index < AFE_MAX_PORTS; port_index++) {
if (adm_get_copp_id(port_index) == copp_id)
break;
}
if (port_index >= AFE_MAX_PORTS) {
pr_err("%s: Could not find port index for copp = %d\n",
__func__, copp_id);
goto done;
}
mutex_lock(&rtac_adm_apr_mutex);
if (rtac_adm_apr_data.apr_handle == NULL) {
pr_err("%s: APR not initialized\n", __func__);
goto err;
}
/* Set globals for copy of returned payload */
rtac_adm_user_buf_size = count;
/* Copy buffer to in-band payload */
if (copy_from_user(rtac_adm_buffer + sizeof(adm_params),
buf + 3 * sizeof(u32), payload_size)) {
pr_err("%s: Could not copy payload from user buffer\n",
__func__);
goto err;
}
/* Pack header */
adm_params.hdr_field = APR_HDR_FIELD(APR_MSG_TYPE_SEQ_CMD,
APR_HDR_LEN(20), APR_PKT_VER);
adm_params.pkt_size = APR_PKT_SIZE(APR_HDR_SIZE,
payload_size);
adm_params.src_svc = APR_SVC_ADM;
adm_params.src_domain = APR_DOMAIN_APPS;
adm_params.src_port = copp_id;
adm_params.dest_svc = APR_SVC_ADM;
adm_params.dest_domain = APR_DOMAIN_ADSP;
adm_params.dest_port = copp_id;
adm_params.token = copp_id;
adm_params.opcode = opcode;
memcpy(rtac_adm_buffer, &adm_params, sizeof(adm_params));
atomic_set(&rtac_adm_apr_data.cmd_state, 1);
pr_debug("%s: Sending RTAC command size = %d\n",
__func__, adm_params.pkt_size);
result = apr_send_pkt(rtac_adm_apr_data.apr_handle,
(uint32_t *)rtac_adm_buffer);
if (result < 0) {
pr_err("%s: Set params failed port = %d, copp = %d\n",
__func__, port_index, copp_id);
goto err;
}
/* Wait for the callback */
result = wait_event_timeout(rtac_adm_apr_data.cmd_wait,
(atomic_read(&rtac_adm_apr_data.cmd_state) == 0),
msecs_to_jiffies(TIMEOUT_MS));
mutex_unlock(&rtac_adm_apr_mutex);
if (!result) {
pr_err("%s: Set params timed out port = %d, copp = %d\n",
__func__, port_index, copp_id);
goto done;
}
if (rtac_adm_payload_size != 0) {
if (copy_to_user(buf, rtac_adm_buffer,
rtac_adm_payload_size + sizeof(u32))) {
pr_err("%s: Could not copy buffer to user, size = %d\n",
__func__, payload_size);
goto done;
}
}
/* Return data written for SET & data read for GET */
if (opcode == ADM_CMD_GET_PARAMS)
bytes_returned = rtac_adm_payload_size;
else
bytes_returned = payload_size;
done:
return bytes_returned;
err:
mutex_unlock(&rtac_adm_apr_mutex);
return bytes_returned;
}
/* ASM APR */
void rtac_set_asm_handle(u32 session_id, void *handle)
{
pr_debug("%s\n", __func__);
mutex_lock(&rtac_asm_apr_mutex);
rtac_asm_apr_data[session_id].apr_handle = handle;
mutex_unlock(&rtac_asm_apr_mutex);
}
bool rtac_make_asm_callback(u32 session_id, uint32_t *payload,
u32 payload_size)
{
if (atomic_read(&rtac_asm_apr_data[session_id].cmd_state) != 1)
return false;
pr_debug("%s\n", __func__);
/* Offset data for in-band payload */
rtac_copy_asm_payload_to_user(payload, payload_size);
atomic_set(&rtac_asm_apr_data[session_id].cmd_state, 0);
wake_up(&rtac_asm_apr_data[session_id].cmd_wait);
return true;
}
void rtac_copy_asm_payload_to_user(void *payload, u32 payload_size)
{
pr_debug("%s\n", __func__);
rtac_asm_payload_size = payload_size;
memcpy(rtac_asm_buffer, &payload_size, sizeof(u32));
if (payload_size) {
if (payload_size > rtac_asm_user_buf_size) {
pr_err("%s: Buffer set not big enough for returned data, buf size = %d, ret data = %d\n",
__func__, rtac_asm_user_buf_size, payload_size);
goto done;
}
memcpy(rtac_asm_buffer + sizeof(u32), payload, payload_size);
}
done:
return;
}
u32 send_rtac_asm_apr(void *buf, u32 opcode)
{
s32 result;
u32 count = 0;
u32 bytes_returned = 0;
u32 session_id = 0;
u32 payload_size;
struct apr_hdr asm_params;
pr_debug("%s\n", __func__);
if (copy_from_user(&count, (void *)buf, sizeof(count))) {
pr_err("%s: Copy to user failed! buf = 0x%x\n",
__func__, (unsigned int)buf);
result = -EFAULT;
goto done;
}
if (count <= 0) {
pr_err("%s: Invalid buffer size = %d\n", __func__, count);
goto done;
}
if (copy_from_user(&payload_size, buf + sizeof(u32), sizeof(u32))) {
pr_err("%s: Could not copy payload size from user buffer\n",
__func__);
goto done;
}
if (payload_size > MAX_PAYLOAD_SIZE) {
pr_err("%s: Invalid payload size = %d\n",
__func__, payload_size);
goto done;
}
if (copy_from_user(&session_id, buf + 2 * sizeof(u32), sizeof(u32))) {
pr_err("%s: Could not copy session id from user buffer\n",
__func__);
goto done;
}
if (session_id > (SESSION_MAX + 1)) {
pr_err("%s: Invalid Session = %d\n", __func__, session_id);
goto done;
}
mutex_lock(&rtac_asm_apr_mutex);
if (session_id < SESSION_MAX+1) {
if (rtac_asm_apr_data[session_id].apr_handle == NULL) {
pr_err("%s: APR not initialized\n", __func__);
goto err;
}
}
/* Set globals for copy of returned payload */
rtac_asm_user_buf_size = count;
/* Copy buffer to in-band payload */
if (copy_from_user(rtac_asm_buffer + sizeof(asm_params),
buf + 3 * sizeof(u32), payload_size)) {
pr_err("%s: Could not copy payload from user buffer\n",
__func__);
goto err;
}
/* Pack header */
asm_params.hdr_field = APR_HDR_FIELD(APR_MSG_TYPE_SEQ_CMD,
APR_HDR_LEN(20), APR_PKT_VER);
asm_params.pkt_size = APR_PKT_SIZE(APR_HDR_SIZE,
payload_size);
asm_params.src_svc = q6asm_get_apr_service_id(session_id);
asm_params.src_domain = APR_DOMAIN_APPS;
asm_params.src_port = (session_id << 8) | 0x0001;
asm_params.dest_svc = APR_SVC_ASM;
asm_params.dest_domain = APR_DOMAIN_ADSP;
asm_params.dest_port = (session_id << 8) | 0x0001;
asm_params.token = session_id;
asm_params.opcode = opcode;
memcpy(rtac_asm_buffer, &asm_params, sizeof(asm_params));
if (session_id < SESSION_MAX+1)
atomic_set(&rtac_asm_apr_data[session_id].cmd_state, 1);
pr_debug("%s: Sending RTAC command size = %d, session_id=%d\n",
__func__, asm_params.pkt_size, session_id);
result = apr_send_pkt(rtac_asm_apr_data[session_id].apr_handle,
(uint32_t *)rtac_asm_buffer);
if (result < 0) {
pr_err("%s: Set params failed session = %d\n",
__func__, session_id);
goto err;
}
/* Wait for the callback */
result = wait_event_timeout(rtac_asm_apr_data[session_id].cmd_wait,
(atomic_read(&rtac_asm_apr_data[session_id].cmd_state) == 0),
5 * HZ);
mutex_unlock(&rtac_asm_apr_mutex);
if (!result) {
pr_err("%s: Set params timed out session = %d\n",
__func__, session_id);
goto done;
}
if (rtac_asm_payload_size != 0) {
if (copy_to_user(buf, rtac_asm_buffer,
rtac_asm_payload_size + sizeof(u32))) {
pr_err("%s: Could not copy buffer to user,size = %d\n",
__func__, payload_size);
goto done;
}
}
/* Return data written for SET & data read for GET */
if (opcode == ASM_STREAM_CMD_GET_PP_PARAMS)
bytes_returned = rtac_asm_payload_size;
else
bytes_returned = payload_size;
done:
return bytes_returned;
err:
mutex_unlock(&rtac_asm_apr_mutex);
return bytes_returned;
}
/* Voice APR */
void rtac_set_voice_handle(u32 mode, void *handle)
{
pr_debug("%s\n", __func__);
mutex_lock(&rtac_voice_apr_mutex);
rtac_voice_apr_data[mode].apr_handle = handle;
mutex_unlock(&rtac_voice_apr_mutex);
}
bool rtac_make_voice_callback(u32 mode, uint32_t *payload, u32 payload_size)
{
if ((atomic_read(&rtac_voice_apr_data[mode].cmd_state) != 1) ||
(mode >= RTAC_VOICE_MODES))
return false;
pr_debug("%s\n", __func__);
/* Offset data for in-band payload */
rtac_copy_voice_payload_to_user(payload, payload_size);
atomic_set(&rtac_voice_apr_data[mode].cmd_state, 0);
wake_up(&rtac_voice_apr_data[mode].cmd_wait);
return true;
}
void rtac_copy_voice_payload_to_user(void *payload, u32 payload_size)
{
pr_debug("%s\n", __func__);
rtac_voice_payload_size = payload_size;
memcpy(rtac_voice_buffer, &payload_size, sizeof(u32));
if (payload_size) {
if (payload_size > rtac_voice_user_buf_size) {
pr_err("%s: Buffer set not big enough for returned data, buf size = %d, ret data = %d\n",
__func__, rtac_voice_user_buf_size, payload_size);
goto done;
}
memcpy(rtac_voice_buffer + sizeof(u32), payload, payload_size);
}
done:
return;
}
u32 send_voice_apr(u32 mode, void *buf, u32 opcode)
{
s32 result;
u32 count = 0;
u32 bytes_returned = 0;
u32 payload_size;
u32 dest_port;
struct apr_hdr voice_params;
pr_debug("%s\n", __func__);
if (copy_from_user(&count, (void *)buf, sizeof(count))) {
pr_err("%s: Copy to user failed! buf = 0x%x\n",
__func__, (unsigned int)buf);
result = -EFAULT;
goto done;
}
if (count <= 0) {
pr_err("%s: Invalid buffer size = %d\n", __func__, count);
goto done;
}
if (copy_from_user(&payload_size, buf + sizeof(payload_size),
sizeof(payload_size))) {
pr_err("%s: Could not copy payload size from user buffer\n",
__func__);
goto done;
}
if (payload_size > MAX_PAYLOAD_SIZE) {
pr_err("%s: Invalid payload size = %d\n",
__func__, payload_size);
goto done;
}
if (copy_from_user(&dest_port, buf + 2 * sizeof(dest_port),
sizeof(dest_port))) {
pr_err("%s: Could not copy port id from user buffer\n",
__func__);
goto done;
}
if ((mode != RTAC_CVP) && (mode != RTAC_CVS)) {
pr_err("%s: Invalid Mode for APR, mode = %d\n",
__func__, mode);
goto done;
}
mutex_lock(&rtac_voice_apr_mutex);
if (rtac_voice_apr_data[mode].apr_handle == NULL) {
pr_err("%s: APR not initialized\n", __func__);
goto err;
}
/* Set globals for copy of returned payload */
rtac_voice_user_buf_size = count;
/* Copy buffer to in-band payload */
if (copy_from_user(rtac_voice_buffer + sizeof(voice_params),
buf + 3 * sizeof(u32), payload_size)) {
pr_err("%s: Could not copy payload from user buffer\n",
__func__);
goto err;
}
/* Pack header */
voice_params.hdr_field = APR_HDR_FIELD(APR_MSG_TYPE_SEQ_CMD,
APR_HDR_LEN(20), APR_PKT_VER);
voice_params.pkt_size = APR_PKT_SIZE(APR_HDR_SIZE,
payload_size);
voice_params.src_svc = 0;
voice_params.src_domain = APR_DOMAIN_APPS;
voice_params.src_port = voice_session_id[
get_voice_index(mode, dest_port)];
voice_params.dest_svc = 0;
voice_params.dest_domain = APR_DOMAIN_MODEM;
voice_params.dest_port = (u16)dest_port;
voice_params.token = 0;
voice_params.opcode = opcode;
memcpy(rtac_voice_buffer, &voice_params, sizeof(voice_params));
atomic_set(&rtac_voice_apr_data[mode].cmd_state, 1);
pr_debug("%s: Sending RTAC command size = %d, opcode = %x\n",
__func__, voice_params.pkt_size, opcode);
result = apr_send_pkt(rtac_voice_apr_data[mode].apr_handle,
(uint32_t *)rtac_voice_buffer);
if (result < 0) {
pr_err("%s: apr_send_pkt failed opcode = %x\n",
__func__, opcode);
goto err;
}
/* Wait for the callback */
result = wait_event_timeout(rtac_voice_apr_data[mode].cmd_wait,
(atomic_read(&rtac_voice_apr_data[mode].cmd_state) == 0),
msecs_to_jiffies(TIMEOUT_MS));
mutex_unlock(&rtac_voice_apr_mutex);
if (!result) {
pr_err("%s: apr_send_pkt timed out opcode = %x\n",
__func__, opcode);
goto done;
}
if (rtac_voice_payload_size != 0) {
if (copy_to_user(buf, rtac_voice_buffer,
rtac_voice_payload_size + sizeof(u32))) {
pr_err("%s: Could not copy buffer to user,size = %d\n",
__func__, payload_size);
goto done;
}
}
/* Return data written for SET & data read for GET */
if (opcode == VOICE_CMD_GET_PARAM)
bytes_returned = rtac_voice_payload_size;
else
bytes_returned = payload_size;
done:
return bytes_returned;
err:
mutex_unlock(&rtac_voice_apr_mutex);
return bytes_returned;
}
static long rtac_ioctl(struct file *f,
unsigned int cmd, unsigned long arg)
{
s32 result = 0;
pr_debug("%s\n", __func__);
if (arg == 0) {
pr_err("%s: No data sent to driver!\n", __func__);
result = -EFAULT;
goto done;
}
switch (cmd) {
case AUDIO_GET_RTAC_ADM_INFO:
if (copy_to_user((void *)arg, &rtac_adm_data,
sizeof(rtac_adm_data)))
pr_err("%s: Could not copy to userspace!\n", __func__);
else
result = sizeof(rtac_adm_data);
break;
case AUDIO_GET_RTAC_VOICE_INFO:
if (copy_to_user((void *)arg, &rtac_voice_data,
sizeof(rtac_voice_data)))
pr_err("%s: Could not copy to userspace!\n", __func__);
else
result = sizeof(rtac_voice_data);
break;
case AUDIO_GET_RTAC_ADM_CAL:
result = send_adm_apr((void *)arg, ADM_CMD_GET_PARAMS);
break;
case AUDIO_SET_RTAC_ADM_CAL:
result = send_adm_apr((void *)arg, ADM_CMD_SET_PARAMS);
break;
case AUDIO_GET_RTAC_ASM_CAL:
result = send_rtac_asm_apr((void *)arg,
ASM_STREAM_CMD_GET_PP_PARAMS);
break;
case AUDIO_SET_RTAC_ASM_CAL:
result = send_rtac_asm_apr((void *)arg,
ASM_STREAM_CMD_SET_PP_PARAMS);
break;
case AUDIO_GET_RTAC_CVS_CAL:
result = send_voice_apr(RTAC_CVS, (void *)arg,
VOICE_CMD_GET_PARAM);
break;
case AUDIO_SET_RTAC_CVS_CAL:
result = send_voice_apr(RTAC_CVS, (void *)arg,
VOICE_CMD_SET_PARAM);
break;
case AUDIO_GET_RTAC_CVP_CAL:
result = send_voice_apr(RTAC_CVP, (void *)arg,
VOICE_CMD_GET_PARAM);
break;
case AUDIO_SET_RTAC_CVP_CAL:
result = send_voice_apr(RTAC_CVP, (void *)arg,
VOICE_CMD_SET_PARAM);
break;
default:
pr_err("%s: Invalid IOCTL, command = %d!\n",
__func__, cmd);
}
done:
return result;
}
static const struct file_operations rtac_fops = {
.owner = THIS_MODULE,
.open = rtac_open,
.release = rtac_release,
.unlocked_ioctl = rtac_ioctl,
};
struct miscdevice rtac_misc = {
.minor = MISC_DYNAMIC_MINOR,
.name = "msm_rtac",
.fops = &rtac_fops,
};
static int __init rtac_init(void)
{
int i = 0;
pr_debug("%s\n", __func__);
/* ADM */
memset(&rtac_adm_data, 0, sizeof(rtac_adm_data));
rtac_adm_apr_data.apr_handle = NULL;
atomic_set(&rtac_adm_apr_data.cmd_state, 0);
init_waitqueue_head(&rtac_adm_apr_data.cmd_wait);
mutex_init(&rtac_adm_mutex);
mutex_init(&rtac_adm_apr_mutex);
rtac_adm_buffer = kzalloc(RTAC_BUF_SIZE, GFP_KERNEL);
if (rtac_adm_buffer == NULL) {
pr_err("%s: Could not allocate payload of size = %d\n",
__func__, RTAC_BUF_SIZE);
goto nomem;
}
/* ASM */
for (i = 0; i < SESSION_MAX+1; i++) {
rtac_asm_apr_data[i].apr_handle = NULL;
atomic_set(&rtac_asm_apr_data[i].cmd_state, 0);
init_waitqueue_head(&rtac_asm_apr_data[i].cmd_wait);
}
mutex_init(&rtac_asm_apr_mutex);
rtac_asm_buffer = kzalloc(RTAC_BUF_SIZE, GFP_KERNEL);
if (rtac_asm_buffer == NULL) {
pr_err("%s: Could not allocate payload of size = %d\n",
__func__, RTAC_BUF_SIZE);
kzfree(rtac_adm_buffer);
goto nomem;
}
/* Voice */
memset(&rtac_voice_data, 0, sizeof(rtac_voice_data));
for (i = 0; i < RTAC_VOICE_MODES; i++) {
rtac_voice_apr_data[i].apr_handle = NULL;
atomic_set(&rtac_voice_apr_data[i].cmd_state, 0);
init_waitqueue_head(&rtac_voice_apr_data[i].cmd_wait);
}
mutex_init(&rtac_voice_mutex);
mutex_init(&rtac_voice_apr_mutex);
rtac_voice_buffer = kzalloc(RTAC_BUF_SIZE, GFP_KERNEL);
if (rtac_voice_buffer == NULL) {
pr_err("%s: Could not allocate payload of size = %d\n",
__func__, RTAC_BUF_SIZE);
kzfree(rtac_adm_buffer);
kzfree(rtac_asm_buffer);
goto nomem;
}
return misc_register(&rtac_misc);
nomem:
return -ENOMEM;
}
module_init(rtac_init);
MODULE_DESCRIPTION("MSM 8x60 Real-Time Audio Calibration driver");
MODULE_LICENSE("GPL v2");
#endif
Reference in New Issue Copy Permalink