static void ipaq_micro_trigger_tx(struct ipaq_micro *micro)
{
struct ipaq_micro_txdev *tx = µ->tx;
struct ipaq_micro_msg *msg = micro->msg;
int i, bp;
u8 checksum;
u32 val;
bp = 0;
tx->buf[bp++] = CHAR_SOF;
checksum = ((msg->id & 0x0f) << 4) | (msg->tx_len & 0x0f);
tx->buf[bp++] = checksum;
for (i = 0; i < msg->tx_len; i++) {
tx->buf[bp++] = msg->tx_data[i];
checksum += msg->tx_data[i];
}
tx->buf[bp++] = checksum;
tx->len = bp;
tx->index = 0;
print_hex_dump_debug("data: ", DUMP_PREFIX_OFFSET, 16, 1,
tx->buf, tx->len, true);
/* Enable interrupt */
val = readl(micro->base + UTCR3);
val |= UTCR3_TIE;
writel(val, micro->base + UTCR3);
}
static int rave_sp_write(struct rave_sp *sp, const u8 *data, u8 data_size)
{
const size_t checksum_length = sp->variant->checksum->length;
unsigned char frame[RAVE_SP_TX_BUFFER_SIZE];
unsigned char crc[RAVE_SP_CHECKSUM_SIZE];
unsigned char *dest = frame;
size_t length;
if (WARN_ON(checksum_length > sizeof(crc)))
return -ENOMEM;
if (WARN_ON(data_size > sizeof(frame)))
return -ENOMEM;
sp->variant->checksum->subroutine(data, data_size, crc);
*dest++ = RAVE_SP_STX;
dest = stuff(dest, data, data_size);
dest = stuff(dest, crc, checksum_length);
*dest++ = RAVE_SP_ETX;
length = dest - frame;
print_hex_dump_debug("rave-sp tx: ", DUMP_PREFIX_NONE,
16, 1, frame, length, false);
return serdev_device_write(sp->serdev, frame, length, HZ);
}
static int skl_set_module_format(struct skl_sst *ctx,
struct skl_module_cfg *module_config,
u16 *module_config_size,
void **param_data)
{
u16 param_size;
param_size = skl_get_module_param_size(ctx, module_config);
*param_data = kzalloc(param_size, GFP_KERNEL);
if (NULL == *param_data)
return -ENOMEM;
*module_config_size = param_size;
switch (module_config->m_type) {
case SKL_MODULE_TYPE_COPIER:
skl_set_copier_format(ctx, module_config, *param_data);
break;
case SKL_MODULE_TYPE_SRCINT:
skl_set_src_format(ctx, module_config, *param_data);
break;
case SKL_MODULE_TYPE_UPDWMIX:
skl_set_updown_mixer_format(ctx, module_config, *param_data);
break;
case SKL_MODULE_TYPE_ALGO:
skl_set_algo_format(ctx, module_config, *param_data);
break;
case SKL_MODULE_TYPE_BASE_OUTFMT:
case SKL_MODULE_TYPE_MIC_SELECT:
case SKL_MODULE_TYPE_KPB:
skl_set_base_outfmt_format(ctx, module_config, *param_data);
break;
default:
skl_set_base_module_format(ctx, module_config, *param_data);
break;
}
dev_dbg(ctx->dev, "Module type=%d config size: %d bytes\n",
module_config->id.module_id, param_size);
print_hex_dump_debug("Module params:", DUMP_PREFIX_OFFSET, 8, 4,
*param_data, param_size, false);
return 0;
}
static int nx842_crypto_add_header(struct nx842_crypto_header *hdr, u8 *buf)
{
int s = NX842_CRYPTO_HEADER_SIZE(hdr->groups);
/* compress should have added space for header */
if (s > be16_to_cpu(hdr->group[0].padding)) {
pr_err("Internal error: no space for header\n");
return -EINVAL;
}
memcpy(buf, hdr, s);
print_hex_dump_debug("header ", DUMP_PREFIX_OFFSET, 16, 1, buf, s, 0);
return 0;
}
static void hdmi_core_write_avi_infoframe(struct hdmi_core_data *core,
struct hdmi_avi_infoframe *frame)
{
void __iomem *av_base = hdmi_av_base(core);
u8 data[HDMI_INFOFRAME_SIZE(AVI)];
int i;
hdmi_avi_infoframe_pack(frame, data, sizeof(data));
print_hex_dump_debug("AVI: ", DUMP_PREFIX_NONE, 16, 1, data,
HDMI_INFOFRAME_SIZE(AVI), false);
for (i = 0; i < sizeof(data); ++i) {
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_BASE + i * 4,
data[i]);
}
}
static int wil_ethtoolops_set_coalesce(struct net_device *ndev,
struct ethtool_coalesce *cp)
{
struct wil6210_priv *wil = ndev_to_wil(ndev);
int ret;
wil_dbg_misc(wil, "ethtoolops_set_coalesce: rx %d usec, tx %d usec\n",
cp->rx_coalesce_usecs, cp->tx_coalesce_usecs);
if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR) {
wil_dbg_misc(wil, "No IRQ coalescing in monitor mode\n");
return -EINVAL;
}
/* only @rx_coalesce_usecs and @tx_coalesce_usecs supported,
* ignore other parameters
*/
if (cp->rx_coalesce_usecs > WIL6210_ITR_TRSH_MAX ||
cp->tx_coalesce_usecs > WIL6210_ITR_TRSH_MAX)
goto out_bad;
wil->tx_max_burst_duration = cp->tx_coalesce_usecs;
wil->rx_max_burst_duration = cp->rx_coalesce_usecs;
ret = wil_pm_runtime_get(wil);
if (ret < 0)
return ret;
wil_configure_interrupt_moderation(wil);
wil_pm_runtime_put(wil);
return 0;
out_bad:
wil_dbg_misc(wil, "Unsupported coalescing params. Raw command:\n");
print_hex_dump_debug("DBG[MISC] coal ", DUMP_PREFIX_OFFSET, 16, 4,
cp, sizeof(*cp), false);
return -EINVAL;
}
static int trf7970a_transmit(struct trf7970a *trf, struct sk_buff *skb,
unsigned int len)
{
unsigned int timeout;
int ret;
print_hex_dump_debug("trf7970a tx data: ", DUMP_PREFIX_NONE,
16, 1, skb->data, len, false);
ret = spi_write(trf->spi, skb->data, len);
if (ret) {
dev_err(trf->dev, "%s - Can't send tx data: %d\n", __func__,
ret);
return ret;
}
skb_pull(skb, len);
if (skb->len > 0) {
trf->state = TRF7970A_ST_WAIT_FOR_TX_FIFO;
timeout = TRF7970A_WAIT_FOR_FIFO_DRAIN_TIMEOUT;
} else {
if (trf->issue_eof) {
trf->state = TRF7970A_ST_WAIT_TO_ISSUE_EOF;
timeout = TRF7970A_WAIT_TO_ISSUE_ISO15693_EOF;
} else {
trf->state = TRF7970A_ST_WAIT_FOR_RX_DATA;
timeout = trf->timeout;
}
}
dev_dbg(trf->dev, "Setting timeout for %d ms, state: %d\n", timeout,
trf->state);
schedule_delayed_work(&trf->timeout_work, msecs_to_jiffies(timeout));
return 0;
}
static int pn533_usb_send_frame(struct pn533 *dev,
struct sk_buff *out)
{
struct pn533_usb_phy *phy = dev->phy;
int rc;
if (phy->priv == NULL)
phy->priv = dev;
phy->out_urb->transfer_buffer = out->data;
phy->out_urb->transfer_buffer_length = out->len;
print_hex_dump_debug("PN533 TX: ", DUMP_PREFIX_NONE, 16, 1,
out->data, out->len, false);
rc = usb_submit_urb(phy->out_urb, GFP_KERNEL);
if (rc)
return rc;
if (dev->protocol_type == PN533_PROTO_REQ_RESP) {
/* request for response for sent packet directly */
rc = pn533_submit_urb_for_response(phy, GFP_ATOMIC);
if (rc)
goto error;
} else if (dev->protocol_type == PN533_PROTO_REQ_ACK_RESP) {
/* request for ACK if that's the case */
rc = pn533_submit_urb_for_ack(phy, GFP_KERNEL);
if (rc)
goto error;
}
return 0;
error:
usb_unlink_urb(phy->out_urb);
return rc;
}
int skl_ipc_init_instance(struct sst_generic_ipc *ipc,
struct skl_ipc_init_instance_msg *msg, void *param_data)
{
struct skl_ipc_header header = {0};
u64 *ipc_header = (u64 *)(&header);
int ret;
u32 *buffer = (u32 *)param_data;
/* param_block_size must be in dwords */
u16 param_block_size = msg->param_data_size / sizeof(u32);
print_hex_dump_debug("Param data:", DUMP_PREFIX_NONE,
16, 4, buffer, param_block_size, false);
header.primary = IPC_MSG_TARGET(IPC_MOD_MSG);
header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
header.primary |= IPC_GLB_TYPE(IPC_MOD_INIT_INSTANCE);
header.primary |= IPC_MOD_INSTANCE_ID(msg->instance_id);
header.primary |= IPC_MOD_ID(msg->module_id);
header.extension = IPC_CORE_ID(msg->core_id);
header.extension |= IPC_PPL_INSTANCE_ID(msg->ppl_instance_id);
header.extension |= IPC_PARAM_BLOCK_SIZE(param_block_size);
header.extension |= IPC_DOMAIN(msg->domain);
dev_dbg(ipc->dev, "In %s primary =%x ext=%x\n", __func__,
header.primary, header.extension);
ret = sst_ipc_tx_message_wait(ipc, *ipc_header, param_data,
msg->param_data_size, NULL, 0);
if (ret < 0) {
dev_err(ipc->dev, "ipc: init instance failed\n");
return ret;
}
return ret;
}
static void trf7970a_send_upstream(struct trf7970a *trf)
{
u8 rssi;
dev_kfree_skb_any(trf->tx_skb);
trf->tx_skb = NULL;
if (trf->rx_skb && !IS_ERR(trf->rx_skb) && !trf->aborting)
print_hex_dump_debug("trf7970a rx data: ", DUMP_PREFIX_NONE,
16, 1, trf->rx_skb->data, trf->rx_skb->len,
false);
/* According to the manual it is "good form" to reset the fifo and
* read the RSSI levels & oscillator status register here. It doesn't
* explain why.
*/
trf7970a_cmd(trf, TRF7970A_CMD_FIFO_RESET);
trf7970a_read(trf, TRF7970A_RSSI_OSC_STATUS, &rssi);
trf->state = TRF7970A_ST_IDLE;
if (trf->aborting) {
dev_dbg(trf->dev, "Abort process complete\n");
if (!IS_ERR(trf->rx_skb)) {
kfree_skb(trf->rx_skb);
trf->rx_skb = ERR_PTR(-ECANCELED);
}
trf->aborting = false;
}
trf->cb(trf->ddev, trf->cb_arg, trf->rx_skb);
trf->rx_skb = NULL;
}
static void hexdump(const unsigned char *buf, unsigned short len)
{
print_hex_dump_debug("", DUMP_PREFIX_OFFSET, 16, 1, buf, len, true);
}
static int rpmsg_recv_single(struct virtproc_info *vrp, struct device *dev,
struct rpmsg_hdr *msg, unsigned int len)
{
struct rpmsg_endpoint *ept;
struct scatterlist sg;
int err;
dev_dbg(dev, "From: 0x%x, To: 0x%x, Len: %d, Flags: %d, Reserved: %d\n",
msg->src, msg->dst, msg->len,
msg->flags, msg->reserved);
#if defined(CONFIG_DYNAMIC_DEBUG) || defined(DEBUG)
print_hex_dump_debug("rpmsg_virtio RX: ", DUMP_PREFIX_NONE, 16, 1,
msg, sizeof(*msg) + msg->len, true);
#endif
/*
* We currently use fixed-sized buffers, so trivially sanitize
* the reported payload length.
*/
if (len > RPMSG_BUF_SIZE ||
msg->len > (len - sizeof(struct rpmsg_hdr))) {
dev_warn(dev, "inbound msg too big: (%d, %d)\n", len, msg->len);
return -EINVAL;
}
/* use the dst addr to fetch the callback of the appropriate user */
mutex_lock(&vrp->endpoints_lock);
ept = idr_find(&vrp->endpoints, msg->dst);
/* let's make sure no one deallocates ept while we use it */
if (ept)
kref_get(&ept->refcount);
mutex_unlock(&vrp->endpoints_lock);
if (ept) {
/* make sure ept->cb doesn't go away while we use it */
mutex_lock(&ept->cb_lock);
if (ept->cb)
ept->cb(ept->rpdev, msg->data, msg->len, ept->priv,
msg->src);
mutex_unlock(&ept->cb_lock);
/* farewell, ept, we don't need you anymore */
kref_put(&ept->refcount, __ept_release);
} else
dev_warn(dev, "msg received with no recipient\n");
/* publish the real size of the buffer */
sg_init_one(&sg, msg, RPMSG_BUF_SIZE);
/* add the buffer back to the remote processor's virtqueue */
err = virtqueue_add_inbuf(vrp->rvq, &sg, 1, msg, GFP_KERNEL);
if (err < 0) {
dev_err(dev, "failed to add a virtqueue buffer: %d\n", err);
return err;
}
return 0;
}
/**
* rpmsg_send_offchannel_raw() - send a message across to the remote processor
* @rpdev: the rpmsg channel
* @src: source address
* @dst: destination address
* @data: payload of message
* @len: length of payload
* @wait: indicates whether caller should block in case no TX buffers available
*
* This function is the base implementation for all of the rpmsg sending API.
*
* It will send @data of length @len to @dst, and say it's from @src. The
* message will be sent to the remote processor which the @rpdev channel
* belongs to.
*
* The message is sent using one of the TX buffers that are available for
* communication with this remote processor.
*
* If @wait is true, the caller will be blocked until either a TX buffer is
* available, or 15 seconds elapses (we don't want callers to
* sleep indefinitely due to misbehaving remote processors), and in that
* case -ERESTARTSYS is returned. The number '15' itself was picked
* arbitrarily; there's little point in asking drivers to provide a timeout
* value themselves.
*
* Otherwise, if @wait is false, and there are no TX buffers available,
* the function will immediately fail, and -ENOMEM will be returned.
*
* Normally drivers shouldn't use this function directly; instead, drivers
* should use the appropriate rpmsg_{try}send{to, _offchannel} API
* (see include/linux/rpmsg.h).
*
* Returns 0 on success and an appropriate error value on failure.
*/
int rpmsg_send_offchannel_raw(struct rpmsg_channel *rpdev, u32 src, u32 dst,
void *data, int len, bool wait)
{
struct virtproc_info *vrp = rpdev->vrp;
struct device *dev = &rpdev->dev;
struct scatterlist sg;
struct rpmsg_hdr *msg;
int err;
/* bcasting isn't allowed */
if (src == RPMSG_ADDR_ANY || dst == RPMSG_ADDR_ANY) {
dev_err(dev, "invalid addr (src 0x%x, dst 0x%x)\n", src, dst);
return -EINVAL;
}
/*
* We currently use fixed-sized buffers, and therefore the payload
* length is limited.
*
* One of the possible improvements here is either to support
* user-provided buffers (and then we can also support zero-copy
* messaging), or to improve the buffer allocator, to support
* variable-length buffer sizes.
*/
if (len > RPMSG_BUF_SIZE - sizeof(struct rpmsg_hdr)) {
dev_err(dev, "message is too big (%d)\n", len);
return -EMSGSIZE;
}
/* grab a buffer */
msg = get_a_tx_buf(vrp);
if (!msg && !wait)
return -ENOMEM;
/* no free buffer ? wait for one (but bail after 15 seconds) */
while (!msg) {
/* enable "tx-complete" interrupts, if not already enabled */
rpmsg_upref_sleepers(vrp);
/*
* sleep until a free buffer is available or 15 secs elapse.
* the timeout period is not configurable because there's
* little point in asking drivers to specify that.
* if later this happens to be required, it'd be easy to add.
*/
err = wait_event_interruptible_timeout(vrp->sendq,
(msg = get_a_tx_buf(vrp)),
msecs_to_jiffies(15000));
/* disable "tx-complete" interrupts if we're the last sleeper */
rpmsg_downref_sleepers(vrp);
/* timeout ? */
if (!err) {
dev_err(dev, "timeout waiting for a tx buffer\n");
return -ERESTARTSYS;
}
}
msg->len = len;
msg->flags = 0;
msg->src = src;
msg->dst = dst;
msg->reserved = 0;
memcpy(msg->data, data, len);
dev_dbg(dev, "TX From 0x%x, To 0x%x, Len %d, Flags %d, Reserved %d\n",
msg->src, msg->dst, msg->len,
msg->flags, msg->reserved);
#if defined(CONFIG_DYNAMIC_DEBUG) || defined(DEBUG)
print_hex_dump_debug("rpmsg_virtio TX: ", DUMP_PREFIX_NONE, 16, 1,
msg, sizeof(*msg) + msg->len, true);
#endif
sg_init_one(&sg, msg, sizeof(*msg) + len);
mutex_lock(&vrp->tx_lock);
/* add message to the remote processor's virtqueue */
err = virtqueue_add_outbuf(vrp->svq, &sg, 1, msg, GFP_KERNEL);
if (err) {
/*
* need to reclaim the buffer here, otherwise it's lost
* (memory won't leak, but rpmsg won't use it again for TX).
* this will wait for a buffer management overhaul.
*/
dev_err(dev, "virtqueue_add_outbuf failed: %d\n", err);
goto out;
}
/* tell the remote processor it has a pending message to read */
virtqueue_kick(vrp->svq);
out:
mutex_unlock(&vrp->tx_lock);
return err;
}