@@ -46,6 +46,8 @@
#define CMD_ID_SHIFT 0
#define CMD_ID_MASK 0x7f
+#define CMD_SET_SHIFT 7
+#define CMD_SET_MASK 0x1
#define CMD_TOKEN_ID_SHIFT 8
#define CMD_TOKEN_ID_MASK 0xff
#define CMD_DATA_SIZE_SHIFT 16
@@ -53,6 +55,10 @@
#define PACK_SCPI_CMD(cmd_id, tx_sz) \
((((cmd_id) & CMD_ID_MASK) << CMD_ID_SHIFT) | \
(((tx_sz) & CMD_DATA_SIZE_MASK) << CMD_DATA_SIZE_SHIFT))
+#define PACK_EXT_SCPI_CMD(cmd_id, tx_sz) \
+ ((((cmd_id) & CMD_ID_MASK) << CMD_ID_SHIFT) | \
+ (CMD_SET_MASK << CMD_SET_SHIFT) | \
+ (((tx_sz) & CMD_DATA_SIZE_MASK) << CMD_DATA_SIZE_SHIFT))
#define ADD_SCPI_TOKEN(cmd, token) \
((cmd) |= (((token) & CMD_TOKEN_ID_MASK) << CMD_TOKEN_ID_SHIFT))
@@ -343,8 +349,8 @@ static void put_scpi_xfer(struct scpi_xfer *t, struct scpi_chan *ch)
mutex_unlock(&ch->xfers_lock);
}
-static int scpi_send_message(u8 cmd, void *tx_buf, unsigned int tx_len,
- void *rx_buf, unsigned int rx_len)
+static int __scpi_send_message(u8 cmd, void *tx_buf, unsigned int tx_len,
+ void *rx_buf, unsigned int rx_len, bool extn)
{
int ret;
u8 chan;
@@ -359,7 +365,8 @@ static int scpi_send_message(u8 cmd, void *tx_buf, unsigned int tx_len,
return -ENOMEM;
msg->slot = BIT(SCPI_SLOT);
- msg->cmd = PACK_SCPI_CMD(cmd, tx_len);
+ msg->cmd = extn ? PACK_EXT_SCPI_CMD(cmd, tx_len) :
+ PACK_SCPI_CMD(cmd, tx_len);
msg->tx_buf = tx_buf;
msg->tx_len = tx_len;
msg->rx_buf = rx_buf;
@@ -384,6 +391,20 @@ out:
return ret > 0 ? scpi_to_linux_errno(ret) : ret;
}
+static int scpi_send_message(u8 cmd, void *tx_buf, unsigned int tx_len,
+ void *rx_buf, unsigned int rx_len)
+{
+ return __scpi_send_message(cmd, tx_buf, tx_len, rx_buf, rx_len, false);
+}
+
+static int scpi_ext_send_message(u8 cmd, unsigned long arg,
+ void *tx_buf, unsigned int tx_len,
+ void *rx_buf, unsigned int rx_len)
+{
+ return __scpi_send_message(cmd, tx_buf, tx_len, rx_buf, rx_len, true);
+}
+
+
static u32 scpi_get_version(void)
{
return scpi_info->protocol_version;
@@ -577,6 +598,7 @@ static struct scpi_ops scpi_ops = {
.sensor_get_value = scpi_sensor_get_value,
.device_get_power_state = scpi_device_get_power_state,
.device_set_power_state = scpi_device_set_power_state,
+ .vendor_send_message = scpi_ext_send_message,
};
static int scpi_init_versions(struct scpi_drvinfo *info)
Implement official SCPI external commands with the newly introduced vendor_send_message in ops. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> --- drivers/firmware/arm_scpi.c | 28 +++++++++++++++++++++++++--- 1 file changed, 25 insertions(+), 3 deletions(-)