static int esa_prepare_buffer(struct device *dev)
{
unsigned long iova;
int n, ret;
/* Original firmware */
si.fwmem = devm_kzalloc(dev, FWMEM_SIZE, GFP_KERNEL);
if (!si.fwmem) {
esa_err("Failed to alloc fwmem\n");
goto err;
}
si.fwmem_pa = virt_to_phys(si.fwmem);
/* Firmware backup for SRAM */
si.fwmem_sram_bak = devm_kzalloc(dev, SRAM_FW_MAX, GFP_KERNEL);
if (!si.fwmem_sram_bak) {
esa_err("Failed to alloc fwmem\n");
goto err;
}
/* Firmware for DRAM */
for (n = 0; n < FWAREA_NUM; n++) {
si.fwarea[n] = dma_alloc_coherent(dev, FWAREA_SIZE,
&si.fwarea_pa[n], GFP_KERNEL);
if (!si.fwarea[n]) {
esa_err("Failed to alloc fwarea\n");
goto err0;
}
}
for (n = 0, iova = FWAREA_IOVA;
n < FWAREA_NUM; n++, iova += FWAREA_SIZE) {
ret = iommu_map(si.domain, iova,
si.fwarea_pa[n], FWAREA_SIZE, 0);
if (ret) {
esa_err("Failed to map iommu\n");
goto err1;
}
}
/* Base address for IBUF, OBUF and FW LOG */
si.bufmem = si.fwarea[0] + BASEMEM_OFFSET;
si.bufmem_pa = si.fwarea_pa[0];
si.fw_log_buf = si.sram + FW_LOG_ADDR;
return 0;
err1:
for (n = 0, iova = FWAREA_IOVA;
n < FWAREA_NUM; n++, iova += FWAREA_SIZE) {
iommu_unmap(si.domain, iova, FWAREA_SIZE);
}
err0:
for (n = 0; n < FWAREA_NUM; n++) {
if (si.fwarea[n])
dma_free_coherent(dev, FWAREA_SIZE,
si.fwarea[n], si.fwarea_pa[n]);
}
err:
return -ENOMEM;
}
static void esa_fw_request_complete(const struct firmware *fw_sram, void *ctx)
{
const struct firmware *fw_dram;
struct device *dev = ctx;
if (!fw_sram) {
esa_err("Failed to requset firmware[%s]\n", FW_SRAM_NAME);
return;
}
if (request_firmware(&fw_dram, FW_DRAM_NAME, dev)) {
esa_err("Failed to requset firmware[%s]\n", FW_DRAM_NAME);
return;
}
si.fwmem_loaded = true;
si.fw_sbin_size = fw_sram->size;
si.fw_dbin_size = fw_dram->size;
memcpy(si.fwmem, fw_sram->data, si.fw_sbin_size);
memcpy(si.fwmem + si.fw_sbin_size, fw_dram->data, si.fw_dbin_size);
esa_info("FW Loaded (SRAM = %d, DRAM = %d)\n",
si.fw_sbin_size, si.fw_dbin_size);
return;
}
static int esa_fw_startup(void)
{
#ifndef CONFIG_SND_SAMSUNG_SEIREN_OFFLOAD
unsigned int dec_ver;
#endif
int ret;
if (si.fw_ready)
return 0;
if (!si.fwmem_loaded)
return -EAGAIN;
/* power on */
si.fw_use_dram = true;
esa_debug("Turn on CA5...\n");
esa_fw_download();
/* wait for fw ready */
ret = wait_event_interruptible_timeout(esa_wq, si.fw_ready, HZ / 2);
if (!ret) {
esa_err("%s: fw not ready!!!\n", __func__);
si.fw_use_dram = false;
return -EBUSY;
}
#ifndef CONFIG_SND_SAMSUNG_SEIREN_OFFLOAD
/* check decoder version */
esa_send_cmd(SYS_GET_STATUS);
dec_ver = readl(si.mailbox) & 0xFF00;
dec_ver = dec_ver >> 8;
esa_debug("Decoder version : %x\n", dec_ver);
#endif
return 0;
}
static ssize_t esa_write(struct file *file, const char *buffer,
size_t size, loff_t *pos)
{
int ret;
mutex_lock(&esa_mutex);
pm_runtime_get_sync(&si.pdev->dev);
if (!si.fx_ext_on) {
esa_debug("%s: fx ext not enabled\n", __func__);
ret = -EINVAL;
goto out;
}
if (!si.fx_work_buf) {
esa_debug("%s: fx buf not ready\n", __func__);
ret = -EBUSY;
goto out;
}
if (copy_from_user(si.fx_work_buf, buffer, size)) {
esa_err("%s: failed to copy_from_user\n", __func__);
ret = -EFAULT;
} else {
esa_debug("%s: %lu bytes\n", __func__, size);
ret = FX_BUF_SIZE;
}
out:
pm_runtime_mark_last_busy(&si.pdev->dev);
pm_runtime_put_sync_autosuspend(&si.pdev->dev);
mutex_unlock(&esa_mutex);
return ret;
}
static int esa_open(struct inode *inode, struct file *file)
{
struct esa_rtd *rtd;
if (!si.fwmem_loaded) {
esa_err("Firmware not ready\n");
return -ENXIO;
}
/* alloc rtd */
rtd = esa_alloc_rtd();
if (!rtd) {
esa_debug("%s: Not enough memory\n", __func__);
return -EFAULT;
}
esa_debug("%s: idx:%d\n", __func__, rtd->idx);
/* initialize */
file->private_data = rtd;
rtd->get_eos = EOS_NO;
rtd->need_config = false;
rtd->select_ibuf = 0;
rtd->select_obuf = 0;
rtd->obuf0_filled = false;
rtd->obuf1_filled = false;
return 0;
}
static int esa_send_cmd_(u32 cmd_code, bool sram_only)
{
u32 cnt, val;
int ret;
si.isr_done = 0;
writel(cmd_code, si.mailbox + CMD_CODE); /* command */
writel(1, si.regs + SW_INTR_CA5); /* trigger ca5 */
si.fw_use_dram = sram_only ? false : true;
ret = wait_event_interruptible_timeout(esa_wq, si.isr_done, HZ / 2);
if (!ret) {
esa_err("%s: CMD(%08X) timed out!!!\n",
__func__, cmd_code);
esa_dump_fw_log();
si.fw_use_dram = true;
return -EBUSY;
}
cnt = msecs_to_loops(10);
while (--cnt) {
val = readl(si.regs + CA5_STATUS);
if (val & CA5_STATUS_WFI)
break;
cpu_relax();
}
si.fw_use_dram = false;
return 0;
}
static ssize_t esa_read(struct file *file, char *buffer,
size_t size, loff_t *pos)
{
int ret;
mutex_lock(&esa_mutex);
pm_runtime_get_sync(&si.pdev->dev);
if (!si.fx_ext_on) {
esa_debug("%s: fx ext not enabled\n", __func__);
ret = -EINVAL;
goto out;
}
ret = wait_event_interruptible_timeout(esa_fx_wq, si.fx_irq_done, HZ);
if (!ret) {
esa_err("%s: fx irq timeout\n", __func__);
ret = -EBUSY;
goto out;
}
si.fx_irq_done = false;
si.fx_work_buf = (unsigned char *)(si.sram + FX_BUF_OFFSET);
si.fx_work_buf += si.fx_next_idx * FX_BUF_SIZE;
esa_debug("%s: buf_idx = %d\n", __func__, si.fx_next_idx);
if (copy_to_user((void *)buffer, si.fx_work_buf, FX_BUF_SIZE)) {
esa_err("%s: failed to copy_to_user\n", __func__);
ret = -EFAULT;
} else {
ret = FX_BUF_SIZE;
}
out:
pm_runtime_mark_last_busy(&si.pdev->dev);
pm_runtime_put_sync_autosuspend(&si.pdev->dev);
mutex_unlock(&esa_mutex);
return ret;
}
int esa_dma_send_cmd(u32 cmd, int ch, void __iomem *reg_ack)
{
int n, ack;
switch (cmd) {
case CMD_DMA_PREPARE:
case CMD_DMA_START:
case CMD_DMA_STOP:
break;
default:
esa_err("%s: unknown cmd %d\n", __func__, cmd);
return -EIO;
}
spin_lock(&si.cmd_lock);
writel(ch, si.mailbox + HANDLE_ID); /* dma ch */
writel(cmd, si.mailbox + CMD_CODE); /* command */
writel(1, si.regs + SW_INTR_CA5); /* trigger ca5 */
for (n = 0, ack = 0; n < 2000; n++) {
if (readl(reg_ack)) { /* Wait for ACK */
ack = 1;
break;
}
udelay(100);
}
writel(0, reg_ack); /* clear ACK */
spin_unlock(&si.cmd_lock);
if (!ack) {
esa_err("%s: No ack error!", __func__);
esa_dump_fw_log();
}
return 0;
}
int esa_compr_send_buffer(const size_t copy_size, struct audio_processor *ap)
{
int ret;
/* write mp3 data to firmware */
spin_lock(&si.compr_lock);
writel(copy_size, si.mailbox + COMPR_SIZE_OF_FRAGMENT);
ret = esa_compr_send_cmd(CMD_COMPR_WRITE, ap);
if (ret) {
esa_err("%s: can't send CMD_COMPR_WRITE (%d)\n",
__func__, ret);
spin_unlock(&si.compr_lock);
return ret;
}
spin_unlock(&si.compr_lock);
return 0;
}
static int esa_remove(struct platform_device *pdev)
{
int ret = 0;
free_irq(si.irq_ca5, 0);
ret = misc_deregister(&esa_miscdev);
if (ret)
esa_err("Cannot deregister miscdev\n");
#ifndef CONFIG_PM_RUNTIME
clk_disable_unprepare(si.clk_ca5);
lpass_put_sync(&pdev->dev);
#endif
clk_put(si.clk_ca5);
clk_put(si.opclk_ca5);
#ifdef CONFIG_SND_SAMSUNG_SEIREN_DMA
clk_put(si.clk_dmac);
clk_put(si.clk_timer);
#endif
return ret;
}
static long esa_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int ret = 0;
mutex_lock(&esa_mutex);
pm_runtime_get_sync(&si.pdev->dev);
switch (cmd) {
case SEIREN_IOCTL_FX_EXT:
si.fx_ext_on = arg ? true : false;
writel(si.fx_ext_on ? 1 : 0, si.mailbox + EFFECT_EXT_ON);
break;
default:
esa_err("%s: unknown cmd:%08X, arg:%08X\n",
__func__, cmd, (unsigned int)arg);
break;
}
pm_runtime_mark_last_busy(&si.pdev->dev);
pm_runtime_put_sync_autosuspend(&si.pdev->dev);
mutex_unlock(&esa_mutex);
return ret;
}
int esa_compr_set_param(struct audio_processor* ap, uint8_t **buffer)
{
unsigned int ip_type;
unsigned char *ibuf;
u32 ibuf_ca5_pa;
u32 ibuf_offset;
int ret;
ptr_ap = ap;
/* initialize in buffer */
/* use free area in dram */
ibuf = si.fwarea[1];
ap->block_num = 1;
/* calculate the physical address */
ibuf_offset = ibuf - si.fwarea[ap->block_num];
ibuf_ca5_pa = ibuf_offset + FWAREA_SIZE * ap->block_num;
/* set buffer information at mailbox */
spin_lock(&si.lock);
writel(ap->buffer_size, si.mailbox + COMPR_SIZE_OF_INBUF);
writel(ibuf_ca5_pa, si.mailbox + COMPR_PHY_ADDR_INBUF);
writel(ap->sample_rate, si.mailbox + COMPR_PARAM_SAMPLE);
writel(ap->num_channels, si.mailbox + COMPR_PARAM_CH);
ip_type = ap->codec_id << 16;
writel(ip_type, si.mailbox + COMPR_IP_TYPE);
spin_unlock(&si.lock);
si.isr_compr_created = 0;
ret = esa_compr_send_cmd(CMD_COMPR_SET_PARAM, ap);
if (ret) {
esa_err("%s: can't send CMD_COMPR_SET_PARAM (%d)\n",
__func__, ret);
return ret;
}
/* wait until the parameter is set up */
ret = wait_event_interruptible_timeout(esa_wq, si.isr_compr_created, HZ * 2);
if (!ret) {
esa_err("%s: compress set param timed out!!! (%d)\n",
__func__, ret);
writel(0, si.mailbox + COMPR_INTR_ACK);
esa_dump_fw_log();
si.fw_use_dram = true;
ptr_ap = NULL;
return -EBUSY;
}
/* created instance */
ap->handle_id = readl(si.mailbox + COMPR_IP_ID);
esa_info("%s: codec id:0x%x, ret_val:0x%x, handle_id:0x%x\n",
__func__, (unsigned int)ap->codec_id,
readl(si.mailbox + COMPR_RETURN_CMD),
(unsigned int)ap->handle_id);
/* return the buffer address for caller */
*buffer = ibuf;
esa_info("%s: allocated buffer address (0x%p), size(0x%x)\n",
__func__, *buffer, ap->buffer_size);
#ifdef CONFIG_SND_ESA_SA_EFFECT
si.effect_on = false;
#endif
return 0;
}
static irqreturn_t esa_isr(int irqno, void *id)
{
unsigned int fw_stat, log_size, val;
bool wakeup = false;
#ifdef CONFIG_SND_SAMSUNG_SEIREN_OFFLOAD
unsigned int size;
int ret;
#endif
writel(0, si.regs + SW_INTR_CPU);
val = readl(si.mailbox + RETURN_CMD);
if (val == 1)
esa_err("%s: There is possibility of firmware CMD fail %u\n",
__func__, val);
fw_stat = val >> 16;
esa_debug("fw_stat(%08x), val(%08x)\n", fw_stat, val);
switch (fw_stat) {
case INTR_WAKEUP: /* handle wakeup interrupt from firmware */
si.isr_done = 1;
wakeup = true;
break;
case INTR_READY:
pr_debug("FW is ready!\n");
si.fw_ready = true;
wakeup = true;
break;
#ifdef CONFIG_SND_SAMSUNG_SEIREN_DMA
case INTR_DMA:
val &= 0xFF;
esa_debug("INTR_DMA (ch %d)\n", val);
if (si.dma_cb[val])
(*si.dma_cb[val])(si.dma_cb_param[val]);
writel(0, si.mailbox + COMPR_INTR_DMA_ACK);
break;
#endif
#ifdef CONFIG_SND_SAMSUNG_SEIREN_OFFLOAD
case INTR_CREATED:
esa_debug("INTR_CREATED\n");
si.isr_compr_created = 1;
wakeup = true;
writel(0, si.mailbox + COMPR_INTR_ACK);
break;
case INTR_DECODED:
/* check the error */
val &= 0xFF;
if (val) {
esa_err("INTR_DECODED err(%d)\n", val);
esa_dump_fw_log();
writel(0, si.mailbox + COMPR_INTR_ACK);
break;
}
/* update copied total bytes */
size = readl(si.mailbox + COMPR_SIZE_OUT_DATA);
esa_debug("INTR_DECODED(%d)\n", size);
ret = ptr_ap->ops(fw_stat, size, ptr_ap->priv);
if (ret)
esa_err("INTR_DECODED handler err(%d)\n", ret);
writel(0, si.mailbox + COMPR_INTR_ACK);
break;
case INTR_FLUSH:
/* check the error */
val &= 0xFF;
if (val) {
esa_err("INTR_FLUSH err(%d)\n", val);
esa_dump_fw_log();
writel(0, si.mailbox + COMPR_INTR_ACK);
break;
}
/* flush done */
ret = ptr_ap->ops(fw_stat, 0, ptr_ap->priv);
if (ret)
esa_err("INTR_FLUSH handler err(%d)\n", ret);
writel(0, si.mailbox + COMPR_INTR_ACK);
break;
case INTR_PAUSED:
/* check the error */
val &= 0xFF;
if (val) {
esa_err("INTR_PAUSED err(%d)\n", val);
esa_dump_fw_log();
writel(0, si.mailbox + COMPR_INTR_ACK);
break;
}
/* paused */
ret = ptr_ap->ops(fw_stat, 0, ptr_ap->priv);
if (ret)
esa_err("INTR_PAUSED handler err(%d)\n", ret);
writel(0, si.mailbox + COMPR_INTR_ACK);
break;
case INTR_EOS:
ret = ptr_ap->ops(fw_stat, 0, ptr_ap->priv);
if (ret)
esa_err("INTR_EOS handler err(%d)\n", ret);
writel(0, si.mailbox + COMPR_INTR_ACK);
break;
case INTR_DESTROY:
/* check the error */
val &= 0xFF;
if (val) {
esa_err("INTR_DESTROY err(%d)\n", val);
esa_dump_fw_log();
writel(0, si.mailbox + COMPR_INTR_ACK);
break;
}
/* destroied */
ret = ptr_ap->ops(fw_stat, 0, ptr_ap->priv);
if (ret)
esa_err("INTR_DESTROY handler err(%d)\n", ret);
writel(0, si.mailbox + COMPR_INTR_ACK);
break;
case INTR_FX_EXT:
esa_info("INTR_FX_EXT: fw_stat(%08x), val(%08x)\n",
fw_stat, val);
si.fx_next_idx = val & 0xF;
si.fx_irq_done = true;
if (waitqueue_active(&esa_fx_wq))
wake_up_interruptible(&esa_fx_wq);
writel(0, si.mailbox + COMPR_INTR_ACK);
break;
#endif
case INTR_FW_LOG: /* print debug message from firmware */
log_size = readl(si.mailbox + RETURN_CMD) & 0x00FF;
if (!log_size) {
esa_debug("FW: %s", si.fw_log);
si.fw_log_pos = 0;
} else {
val = readl(si.mailbox + FW_LOG_VAL1);
memcpy(si.fw_log + si.fw_log_pos, &val, 4);
val = readl(si.mailbox + FW_LOG_VAL2);
memcpy(si.fw_log + si.fw_log_pos + 4, &val, 4);
si.fw_log_pos += log_size;
si.fw_log[si.fw_log_pos] = '\0';
}
writel(0, si.mailbox + RETURN_CMD);
break;
default:
esa_err("%s: unknown intr_stat = 0x%08X\n",
__func__, fw_stat);
break;
}
if (wakeup && waitqueue_active(&esa_wq))
wake_up_interruptible(&esa_wq);
return IRQ_HANDLED;
}
static int esa_set_params(struct file *file, unsigned int param,
unsigned long arg)
{
struct esa_rtd *rtd = file->private_data;
int ret = 0;
switch (param) {
case PCM_PARAM_MAX_SAMPLE_RATE:
esa_debug("PCM_PARAM_MAX_SAMPLE_RATE: arg:%ld\n", arg);
break;
case PCM_PARAM_MAX_NUM_OF_CH:
esa_debug("PCM_PARAM_MAX_NUM_OF_CH: arg:%ld\n", arg);
break;
case PCM_PARAM_MAX_BIT_PER_SAMPLE:
esa_debug("PCM_PARAM_MAX_BIT_PER_SAMPLE: arg:%ld\n", arg);
break;
case PCM_PARAM_SAMPLE_RATE:
esa_debug("%s: sampling rate: %ld\n", __func__, arg);
writel(rtd->handle_id, si.mailbox + HANDLE_ID);
writel((unsigned int)arg, si.mailbox + PARAMS_VAL1);
esa_send_cmd((param << 16) | CMD_SET_PARAMS);
break;
case PCM_PARAM_NUM_OF_CH:
esa_debug("%s: channel: %ld\n", __func__, arg);
writel(rtd->handle_id, si.mailbox + HANDLE_ID);
writel((unsigned int)arg, si.mailbox + PARAMS_VAL1);
esa_send_cmd((param << 16) | CMD_SET_PARAMS);
break;
case PCM_PARAM_BIT_PER_SAMPLE:
esa_debug("PCM_PARAM_BIT_PER_SAMPLE: arg:%ld\n", arg);
break;
case PCM_MAX_CONFIG_INFO:
esa_debug("PCM_MAX_CONFIG_INFO: arg:%ld\n", arg);
break;
case PCM_CONFIG_INFO:
esa_debug("PCM_CONFIG_INFO: arg:%ld\n", arg);
break;
case EQ_PARAM_NUM_OF_PRESETS:
esa_debug("EQ_PARAM_NUM_OF_PRESETS: arg:%ld\n", arg);
break;
case EQ_PARAM_MAX_NUM_OF_BANDS:
esa_debug("EQ_PARAM_MAX_NUM_OF_BANDS: arg:%ld\n", arg);
break;
case EQ_PARAM_RANGE_OF_BANDLEVEL:
esa_debug("EQ_PARAM_RANGE_OF_BANDLEVEL: arg:%ld\n", arg);
break;
case EQ_PARAM_RANGE_OF_FREQ:
esa_debug("EQ_PARAM_RANGE_OF_FREQ: arg:%ld\n", arg);
break;
case EQ_PARAM_PRESET_ID:
esa_debug("%s: eq preset: %ld\n", __func__, arg);
writel(rtd->handle_id, si.mailbox + HANDLE_ID);
writel((unsigned int)arg, si.mailbox + PARAMS_VAL1);
esa_send_cmd((param << 16) | CMD_SET_PARAMS);
break;
case EQ_PARAM_NUM_OF_BANDS:
esa_debug("EQ_PARAM_NUM_OF_BANDS: arg:%ld\n", arg);
break;
case EQ_PARAM_CENTER_FREQ:
esa_debug("EQ_PARAM_CENTER_FREQ: arg:%ld\n", arg);
break;
case EQ_PARAM_BANDLEVEL:
esa_debug("EQ_PARAM_BANDLEVEL: arg:%ld\n", arg);
break;
case EQ_PARAM_BANDWIDTH:
esa_debug("EQ_PARAM_BANDWIDTH: arg:%ld\n", arg);
break;
case EQ_MAX_CONFIG_INFO:
esa_debug("EQ_MAX_CONFIG_INFO: arg:%ld\n", arg);
break;
case EQ_CONFIG_INFO:
esa_debug("EQ_CONFIG_INFO: arg:%ld\n", arg);
break;
case EQ_BAND_INFO:
esa_debug("EQ_BAND_INFO: arg:%ld\n", arg);
break;
case ADEC_PARAM_SET_EOS:
writel(rtd->handle_id, si.mailbox + HANDLE_ID);
esa_send_cmd((param << 16) | CMD_SET_PARAMS);
esa_debug("ADEC_PARAM_SET_EOS: handle_id:%x\n", rtd->handle_id);
rtd->get_eos = EOS_YET;
break;
case SET_IBUF_POOL_INFO:
esa_debug("SET_IBUF_POOL_INFO: arg:%ld\n", arg);
break;
case SET_OBUF_POOL_INFO:
esa_debug("SET_OBUF_POOL_INFO: arg:%ld\n", arg);
break;
default:
esa_err("%s: Unknown %ld\n", __func__, arg);
break;
}
return ret;
}
static ssize_t esa_read(struct file *file, char *buffer,
size_t size, loff_t *pos)
{
struct esa_rtd *rtd = file->private_data;
unsigned char *obuf;
unsigned int *obuf_filled_size;
bool *obuf_filled;
unsigned char *obuf_;
unsigned int *obuf_filled_size_;
bool *obuf_filled_;
mutex_lock(&esa_mutex);
pm_runtime_get_sync(&si.pdev->dev);
/* select OBUF0 or OBUF1 */
if (rtd->select_obuf == 0) {
obuf = rtd->obuf0;
obuf_filled = &rtd->obuf0_filled;
obuf_filled_size = &rtd->obuf0_filled_size;
obuf_ = rtd->obuf1;
obuf_filled_ = &rtd->obuf1_filled;
obuf_filled_size_ = &rtd->obuf1_filled_size;
esa_debug("%s: use obuf0\n", __func__);
} else {
obuf = rtd->obuf1;
obuf_filled = &rtd->obuf1_filled;
obuf_filled_size = &rtd->obuf1_filled_size;
obuf_ = rtd->obuf0;
obuf_filled_ = &rtd->obuf0_filled;
obuf_filled_size_ = &rtd->obuf0_filled_size;
esa_debug("%s: use obuf1\n", __func__);
}
/* select OBUF0 or OBUF1 for next reading */
rtd->select_obuf = !rtd->select_obuf;
/* later... invalidate obuf cache */
/* send pcm data to user */
if (copy_to_user((void *)buffer, obuf, *obuf_filled_size)) {
esa_err("%s: failed to copy_to_user\n", __func__);
goto err;
}
/* if meet eos, it sholud also collect data of another buff */
if (rtd->get_eos && !*obuf_filled_) {
rtd->get_eos = EOS_FINAL;
}
esa_debug("%s: handle_id[%x], idx:[%d], obuf:[%d], obuf_filled_size:[%d]\n",
__func__, rtd->handle_id, rtd->idx, !rtd->select_obuf,
(u32)*obuf_filled_size);
*obuf_filled = false;
pm_runtime_mark_last_busy(&si.pdev->dev);
pm_runtime_put_sync_autosuspend(&si.pdev->dev);
mutex_unlock(&esa_mutex);
return *obuf_filled_size;
err:
pm_runtime_mark_last_busy(&si.pdev->dev);
pm_runtime_put_sync_autosuspend(&si.pdev->dev);
mutex_unlock(&esa_mutex);
return -EFAULT;
}
static ssize_t esa_write(struct file *file, const char *buffer,
size_t size, loff_t *pos)
{
struct esa_rtd *rtd = file->private_data;
unsigned char *ibuf;
unsigned char *obuf;
unsigned int *obuf_filled_size;
bool *obuf_filled;
int response, consumed_size = 0;
mutex_lock(&esa_mutex);
pm_runtime_get_sync(&si.pdev->dev);
if (rtd->obuf0_filled && rtd->obuf1_filled) {
esa_err("%s: There is no unfilled obuf\n", __func__);
goto err;
}
/* select IBUF0 or IBUF1 */
if (rtd->select_ibuf == 0) {
ibuf = rtd->ibuf0;
obuf = rtd->obuf0;
obuf_filled = &rtd->obuf0_filled;
obuf_filled_size = &rtd->obuf0_filled_size;
esa_debug("%s: use ibuf0\n", __func__);
} else {
ibuf = rtd->ibuf1;
obuf = rtd->obuf1;
obuf_filled = &rtd->obuf1_filled;
obuf_filled_size = &rtd->obuf1_filled_size;
esa_debug("%s: use ibuf1\n", __func__);
}
/* receive stream data from user */
if (copy_from_user(ibuf, buffer, size)) {
esa_err("%s: failed to copy_from_user\n", __func__);
goto err;
}
/* select IBUF0 or IBUF1 for next writing */
rtd->select_ibuf = !rtd->select_ibuf;
/* send execute command to FW for decoding */
response = esa_send_cmd_exe(rtd, ibuf, obuf, size);
/* filled size in OBUF */
*obuf_filled_size = readl(si.mailbox + SIZE_OUT_DATA);
/* consumed size */
consumed_size = readl(si.mailbox + CONSUMED_BYTE_IN);
if (response == 0 && *obuf_filled_size > 0) {
*obuf_filled = true;
} else {
if (consumed_size <= 0)
consumed_size = response;
if (rtd->need_config)
rtd->need_config = false;
else if (size != 0)
esa_debug("%s: No output? response:%x\n", __func__, response);
}
pm_runtime_mark_last_busy(&si.pdev->dev);
pm_runtime_put_sync_autosuspend(&si.pdev->dev);
mutex_unlock(&esa_mutex);
esa_debug("%s: handle_id[%x], idx:[%d], consumed:[%d], filled_size:[%d], ibuf:[%d]\n",
__func__, rtd->handle_id, rtd->idx, consumed_size,
*obuf_filled_size, !rtd->select_ibuf);
return consumed_size;
err:
pm_runtime_mark_last_busy(&si.pdev->dev);
pm_runtime_put_sync_autosuspend(&si.pdev->dev);
mutex_unlock(&esa_mutex);
return -EFAULT;
}
int esa_compr_send_cmd(int32_t cmd, struct audio_processor* ap)
{
int n, ack;
switch (cmd) {
case CMD_COMPR_CREATE:
esa_info("%s: CMD_COMPR_CREATE %d\n", __func__, cmd);
break;
case CMD_COMPR_DESTROY:
esa_info("%s: CMD_COMPR_DESTROY %d\n", __func__, cmd);
break;
case CMD_COMPR_SET_PARAM:
esa_info("%s: CMD_COMPR_SET_PARAM %d\n", __func__, cmd);
break;
case CMD_COMPR_WRITE:
esa_debug("%s: CMD_COMPR_WRITE %d\n", __func__, cmd);
break;
case CMD_COMPR_READ:
esa_debug("%s: CMD_COMPR_READ %d\n", __func__, cmd);
break;
case CMD_COMPR_START:
esa_info("%s: CMD_COMPR_START %d\n", __func__, cmd);
break;
case CMD_COMPR_STOP:
esa_info("%s: CMD_COMPR_STOP %d\n", __func__, cmd);
break;
case CMD_COMPR_PAUSE:
esa_info("%s: CMD_COMPR_PAUSE %d\n", __func__, cmd);
break;
case CMD_COMPR_EOS:
esa_info("%s: CMD_COMPR_EOS %d\n", __func__, cmd);
break;
case CMD_COMPR_GET_VOLUME:
esa_debug("%s: CMD_COMPR_GET_VOLUME %d\n", __func__, cmd);
break;
case CMD_COMPR_SET_VOLUME:
esa_debug("%s: CMD_COMPR_SET_VOLUME %d\n", __func__, cmd);
break;
default:
esa_err("%s: unknown cmd %d\n", __func__, cmd);
return -EIO;
}
spin_lock(&si.cmd_lock);
writel(ap->handle_id, si.mailbox + COMPR_HANDLE_ID);
writel(cmd, si.mailbox + COMPR_CMD_CODE); /* command */
writel(1, si.regs + SW_INTR_CA5); /* trigger ca5 */
for (n = 0, ack = 0; n < 2000; n++) {
if (readl(ap->reg_ack)) { /* Wait for ACK */
ack = 1;
break;
}
udelay(100);
}
writel(0, ap->reg_ack); /* clear ACK */
spin_unlock(&si.cmd_lock);
if (!ack) {
esa_err("%s: No ack error!(%x)", __func__, cmd);
esa_dump_fw_log();
return -EFAULT;
}
return 0;
}
static int esa_exe(struct file *file, unsigned int param,
unsigned long arg)
{
struct esa_rtd *rtd = file->private_data;
struct audio_mem_info_t ibuf_info, obuf_info;
int response, obuf_filled_size;
unsigned char *ibuf = rtd->ibuf0;
unsigned char *obuf = rtd->obuf0;
int ret = 0;
mutex_lock(&esa_mutex);
/* receive ibuf_info from user */
if (copy_from_user(&ibuf_info, (struct audio_mem_info_t *)arg,
sizeof(struct audio_mem_info_t))) {
esa_err("%s: failed to copy_from_user ibuf_info\n", __func__);
goto err;
}
/* receive obuf_info from user */
arg += sizeof(struct audio_mem_info_t);
if (copy_from_user(&obuf_info, (struct audio_mem_info_t *)arg,
sizeof(struct audio_mem_info_t))) {
esa_err("%s: failed to copy_from_user obuf_info\n", __func__);
goto err;
}
/* prevent test alarmed about tainted data */
if (ibuf_info.mem_size > rtd->ibuf_size) {
ibuf_info.mem_size = rtd->ibuf_size;
esa_err("%s: There is too much input data", __func__);
}
/* receive pcm data from user */
if (copy_from_user(ibuf, (void *)(u64)ibuf_info.virt_addr,
ibuf_info.mem_size)) {
esa_err("%s: failed to copy_from_user\n", __func__);
goto err;
}
/* send execute command to FW for decoding */
response = esa_send_cmd_exe(rtd, ibuf, obuf, ibuf_info.mem_size);
/* filled size in OBUF */
obuf_filled_size = readl(si.mailbox + SIZE_OUT_DATA);
/* later... invalidate obuf cache */
if (!response && obuf_filled_size > 0) {
esa_debug("%s: cmd_exe OK!\n", __func__);
/* send pcm data to user */
if (copy_to_user((void *)(u64)obuf_info.virt_addr,
obuf, obuf_filled_size)) {
esa_err("%s: failed to copy_to_user obuf pcm\n",
__func__);
goto err;
}
} else {
esa_debug("%s: cmd_exe Fail: %d\n", __func__, response);
}
esa_debug("%s: handle_id[%x], idx:[%d], filled_size:[%d]\n",
__func__, rtd->handle_id, rtd->idx, obuf_filled_size);
return ret;
err:
mutex_unlock(&esa_mutex);
return -EFAULT;
}
static int esa_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *np = pdev->dev.of_node;
struct resource *res;
int ret = 0;
printk(banner);
spin_lock_init(&si.lock);
#if defined(CONFIG_SND_SAMSUNG_SEIREN_DMA) || \
defined(CONFIG_SND_SAMSUNG_SEIREN_OFFLOAD)
spin_lock_init(&si.cmd_lock);
spin_lock_init(&si.compr_lock);
#endif
si.pdev = pdev;
ret = misc_register(&esa_miscdev);
if (ret) {
esa_err("Cannot register miscdev\n");
return -ENODEV;
}
si.regs = lpass_get_regs();
if (!si.regs) {
esa_err("Failed to get lpass regs\n");
return -ENODEV;
}
si.sram = lpass_get_mem();
if (!si.sram) {
esa_err("Failed to get lpass sram\n");
return -ENODEV;
}
#ifdef CONFIG_SND_SAMSUNG_SEIREN_DMA
si.dma_param = si.sram + DMA_PARAM_OFFSET;
#endif
#ifdef CONFIG_SND_ESA_SA_EFFECT
si.effect_ram = si.sram + EFFECT_OFFSET;
#endif
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_err(dev, "Failed to get irq resource\n");
return -ENXIO;
}
si.irq_ca5 = res->start;
si.mailbox = si.regs + 0x80;
si.clk_ca5 = clk_get(dev, "ca5");
if (IS_ERR(si.clk_ca5)) {
dev_err(dev, "ca5 clk not found\n");
return -ENODEV;
}
si.opclk_ca5 = clk_get(dev, "ca5_opclk");
if (IS_ERR(si.opclk_ca5)) {
dev_err(dev, "ca5 opclk not found\n");
clk_put(si.clk_ca5);
return -ENODEV;
}
#ifdef CONFIG_SND_SAMSUNG_SEIREN_DMA
si.clk_dmac = clk_get(dev, "dmac");
if (IS_ERR(si.clk_dmac)) {
dev_err(dev, "dmac clk not found\n");
clk_put(si.opclk_ca5);
clk_put(si.clk_ca5);
return -ENODEV;
}
si.clk_timer = clk_get(dev, "timer");
if (IS_ERR(si.clk_timer)) {
dev_err(dev, "timer clk not found\n");
clk_put(si.clk_dmac);
clk_put(si.opclk_ca5);
clk_put(si.clk_ca5);
return -ENODEV;
}
#endif
if (np) {
if (of_find_property(np, "samsung,lpass-subip", NULL))
lpass_register_subip(dev, "ca5");
}
#ifdef CONFIG_SND_SAMSUNG_IOMMU
si.domain = lpass_get_iommu_domain();
if (!si.domain) {
dev_err(dev, "iommu not available\n");
goto err;
}
/* prepare buffer */
if (esa_prepare_buffer(dev))
goto err;
#else
dev_err(dev, "iommu not available\n");
goto err;
#endif
ret = request_firmware_nowait(THIS_MODULE,
FW_ACTION_HOTPLUG,
FW_SRAM_NAME,
dev,
GFP_KERNEL,
dev,
esa_fw_request_complete);
if (ret) {
dev_err(dev, "could not load firmware\n");
goto err;
}
ret = request_irq(si.irq_ca5, esa_isr, 0, "lpass-ca5", 0);
if (ret < 0) {
esa_err("Failed to claim CA5 irq\n");
goto err;
}
#ifdef CONFIG_PROC_FS
si.proc_file = proc_create("driver/seiren", 0, NULL, &esa_proc_fops);
if (!si.proc_file)
esa_info("Failed to register /proc/driver/seiren\n");
#endif
/* hold reset */
lpass_reset(LPASS_IP_CA5, LPASS_OP_RESET);
esa_debug("regs = %p\n", si.regs);
esa_debug("mailbox = %p\n", si.mailbox);
esa_debug("bufmem_pa = %p\n", (void*)si.bufmem_pa);
esa_debug("fwmem_pa = %p\n", (void*)si.fwmem_pa);
esa_debug("ca5 opclk = %ldHz\n", clk_get_rate(si.opclk_ca5));
#ifdef CONFIG_PM_RUNTIME
pm_runtime_use_autosuspend(dev);
pm_runtime_set_autosuspend_delay(dev, 300);
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
pm_runtime_put_sync(dev);
#else
esa_do_resume(dev);
#endif
#ifdef CONFIG_PM_DEVFREQ
si.mif_qos = 0;
si.int_qos = 0;
pm_qos_add_request(&si.ca5_mif_qos, PM_QOS_BUS_THROUGHPUT, 0);
pm_qos_add_request(&si.ca5_int_qos, PM_QOS_DEVICE_THROUGHPUT, 0);
#endif
return 0;
err:
#ifdef CONFIG_SND_SAMSUNG_SEIREN_DMA
clk_put(si.clk_timer);
clk_put(si.clk_dmac);
#endif
clk_put(si.opclk_ca5);
clk_put(si.clk_ca5);
return -ENODEV;
}
static int compr_free(struct snd_compr_stream *cstream)
{
struct snd_compr_runtime *runtime = cstream->runtime;
struct runtime_data *prtd = runtime->private_data;
struct snd_pcm_substream *substream;
struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
const struct snd_soc_dai_ops *cpu_dai_ops;
const struct snd_soc_dai_ops *codec_dai_ops;
unsigned long flags;
int ret;
#ifdef AUDIO_PERF
u64 playback_time, total_time = 0;
int idx;
#endif
pr_debug("%s\n", __func__);
if (!prtd) {
pr_info("compress dai has already freed.\n");
return 0;
}
substream = &prtd->substream;
cpu_dai = prtd->cpu_dai;
codec_dai = prtd->codec_dai;
cpu_dai_ops = cpu_dai->driver->ops;
codec_dai_ops = codec_dai->driver->ops;
if (atomic_read(&prtd->eos)) {
/* ALSA Framework callback to notify drain complete */
snd_compr_drain_notify(cstream);
atomic_set(&prtd->eos, 0);
pr_debug("%s Call Drain notify to wakeup\n", __func__);
}
if (atomic_read(&prtd->created)) {
spin_lock_irqsave(&prtd->lock, flags);
atomic_set(&prtd->created, 0);
prtd->exit_ack = 0;
ret = esa_compr_send_cmd(CMD_COMPR_DESTROY, prtd->ap);
if (ret) {
esa_err("%s: can't send CMD_COMPR_DESTROY (%d)\n",
__func__, ret);
spin_unlock_irqrestore(&prtd->lock, flags);
} else {
spin_unlock_irqrestore(&prtd->lock, flags);
ret = wait_event_interruptible_timeout(prtd->exit_wait,
prtd->exit_ack, 1 * HZ);
if (!ret)
pr_err("%s: CMD_DESTROY timed out!!!\n", __func__);
}
}
#ifdef CONFIG_SND_ESA_SA_EFFECT
aud_vol.ap[COMPR_DAI_MULTIMEDIA_1] = NULL;
#endif
esa_compr_set_state(false);
/* codec hw_free -> cpu hw_free ->
cpu shutdown -> codec shutdown */
if (codec_dai_ops->hw_free)
(*codec_dai_ops->hw_free)(substream, codec_dai);
if (cpu_dai_ops->hw_free)
(*cpu_dai_ops->hw_free)(substream, cpu_dai);
if (cpu_dai_ops->shutdown)
(*cpu_dai_ops->shutdown)(substream, cpu_dai);
if (codec_dai_ops->shutdown)
(*codec_dai_ops->shutdown)(substream, codec_dai);
if (substream->runtime)
kfree(substream->runtime->hw_constraints.rules);
kfree(substream->runtime);
esa_compr_close();
#ifdef AUDIO_PERF
prtd->end_time[OPEN_T] = sched_clock();
playback_time = prtd->end_time[OPEN_T] - prtd->start_time[OPEN_T];
for (idx = 0; idx < TOTAL_TIMES; idx++) {
total_time += prtd->total_time[idx];
}
pr_debug("%s: measure the audio waken time : %llu\n", __func__,
total_time);
pr_debug("%s: may be the ap sleep time : (%llu/%llu)\n", __func__,
playback_time - total_time, playback_time);
#endif
kfree(prtd->ap);
kfree(prtd);
return 0;
}
static int esa_get_params(struct file *file, unsigned int param,
unsigned long arg)
{
struct esa_rtd *rtd = file->private_data;
struct audio_mem_info_t *argp = (struct audio_mem_info_t *)arg;
struct audio_pcm_config_info_t *argp_pcm_info;
unsigned long val;
int ret = 0;
switch (param) {
case PCM_PARAM_MAX_SAMPLE_RATE:
esa_debug("PCM_PARAM_MAX_SAMPLE_RATE: arg:%ld\n", arg);
break;
case PCM_PARAM_MAX_NUM_OF_CH:
esa_debug("PCM_PARAM_MAX_NUM_OF_CH: arg:%ld\n", arg);
break;
case PCM_PARAM_MAX_BIT_PER_SAMPLE:
esa_debug("PCM_PARAM_MAX_BIT_PER_SAMPLE: arg:%ld\n", arg);
break;
case PCM_PARAM_SAMPLE_RATE:
writel(rtd->handle_id, si.mailbox + HANDLE_ID);
esa_send_cmd((param << 16) | CMD_GET_PARAMS);
val = readl(si.mailbox + PARAMS_VAL1);
esa_debug("%s: sampling rate:%ld\n", __func__, val);
if (val >= SAMPLE_RATE_MIN) {
esa_debug("SAMPLE_RATE: SUCCESS: arg:0x%p\n", (void*)arg);
ret = copy_to_user((unsigned long *)arg, &val,
sizeof(unsigned long));
} else
esa_debug("SAMPLE_RATE: FAILED: arg:0x%p\n", (void*)arg);
break;
case PCM_PARAM_NUM_OF_CH:
writel(rtd->handle_id, si.mailbox + HANDLE_ID);
esa_send_cmd((param << 16) | CMD_GET_PARAMS);
val = readl(si.mailbox + PARAMS_VAL1);
esa_debug("%s: Channel:%ld\n", __func__, val);
if (val >= CH_NUM_MIN) {
esa_debug("PCM_CONFIG_NUM_CH: SUCCESS: arg:0x%p\n", (void*)arg);
ret = copy_to_user((unsigned long *)arg, &val,
sizeof(unsigned long));
} else
esa_debug("PCM_PARAM_NUM_CH: FAILED: arg:0x%p\n", (void*)arg);
break;
case PCM_PARAM_BIT_PER_SAMPLE:
esa_debug("PCM_PARAM_BIT_PER_SAMPLE: arg:%ld\n", arg);
break;
case PCM_MAX_CONFIG_INFO:
esa_debug("PCM_MAX_CONFIG_INFO: arg:%ld\n", arg);
break;
case PCM_CONFIG_INFO:
argp_pcm_info = (struct audio_pcm_config_info_t *)arg;
rtd->pcm_info.sample_rate = readl(si.mailbox + FREQ_SAMPLE);
rtd->pcm_info.num_of_channel = readl(si.mailbox + CH_NUM);
esa_debug("%s: rate:%d, ch:%d\n", __func__,
rtd->pcm_info.sample_rate,
rtd->pcm_info.num_of_channel);
if (rtd->pcm_info.sample_rate >= 8000 &&
rtd->pcm_info.num_of_channel > 0) {
esa_debug("PCM_CONFIG_INFO: SUCCESS: arg:0x%p\n", (void*)arg);
ret = copy_to_user(argp_pcm_info, &rtd->ibuf_info,
sizeof(struct audio_pcm_config_info_t));
} else
esa_debug("PCM_CONFIG_INFO: FAILED: arg:0x%p\n", (void*)arg);
break;
case ADEC_PARAM_GET_OUTPUT_STATUS:
writel(rtd->handle_id, si.mailbox + HANDLE_ID);
esa_send_cmd((param << 16) | CMD_GET_PARAMS);
val = readl(si.mailbox + PARAMS_VAL1);
esa_debug("OUTPUT_STATUS:%ld, handle_id:%x\n", val, rtd->handle_id);
if (val && rtd->get_eos == EOS_YET)
val = 0;
ret = copy_to_user((unsigned long *)arg, &val,
sizeof(unsigned long));
break;
case GET_IBUF_POOL_INFO:
esa_debug("GET_IBUF_POOL_INFO: arg:0x%p\n", (void*)arg);
rtd->ibuf_info.mem_size = rtd->ibuf_size;
rtd->ibuf_info.block_count = rtd->ibuf_count;
ret = copy_to_user(argp, &rtd->ibuf_info,
sizeof(struct audio_mem_info_t));
break;
case GET_OBUF_POOL_INFO:
esa_debug("GET_OBUF_POOL_INFO: arg:0x%p\n", (void*)arg);
rtd->obuf_info.mem_size = rtd->obuf_size;
rtd->obuf_info.block_count = rtd->obuf_count;
ret = copy_to_user(argp, &rtd->obuf_info,
sizeof(struct audio_mem_info_t));
break;
default:
esa_err("%s: Unknown %ld\n", __func__, arg);
break;
}
if (ret)
esa_err("%s: failed to copy_to_user\n", __func__);
return ret;
}