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authorTim Wawrzynczak <twawrzynczak@chromium.org>2020-01-22 15:22:18 -0700
committerPatrick Georgi <pgeorgi@google.com>2020-02-01 19:50:19 +0000
commite6078290c5c3fd5a89f548abc5d67b5264745d73 (patch)
treece233b2af20714743916a216ec2ccc9b9f6e35be /src/ec/google/chromeec
parent87afa907316faa46250e38d3969139d4fed18d8a (diff)
downloadcoreboot-e6078290c5c3fd5a89f548abc5d67b5264745d73.tar.xz
ec/google/chromeec: Add new wrappers for host commands
Add new functions to get (from the EC): 1) The number of USB-PD ports 2) The capabilities of each port (EC_CMD_GET_PD_PORT_CAPS) BUG=b:146506369 BRANCH=none TEST=Instrumented calls to these and verified the data Change-Id: I57edbe1592cd28b005f01679ef8a8b5de3e1f586 Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38540 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/ec/google/chromeec')
-rw-r--r--src/ec/google/chromeec/ec.c59
-rw-r--r--src/ec/google/chromeec/ec.h30
2 files changed, 86 insertions, 3 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c
index 0b23034101..4bf41ac119 100644
--- a/src/ec/google/chromeec/ec.c
+++ b/src/ec/google/chromeec/ec.c
@@ -15,16 +15,18 @@
#include <stdint.h>
#include <string.h>
-#include <cbmem.h>
-#include <console/console.h>
#include <assert.h>
#include <bootmode.h>
#include <bootstate.h>
+#include <cbmem.h>
+#include <console/console.h>
#include <delay.h>
+#include <device/device.h>
+#include <device/path.h>
#include <elog.h>
#include <rtc.h>
-#include <stdlib.h>
#include <security/vboot/vboot_common.h>
+#include <stdlib.h>
#include <timer.h>
#include "chip.h"
@@ -1419,6 +1421,57 @@ enum ec_current_image google_chromeec_get_current_image(void)
return ec_image_type;
}
+int google_chromeec_get_num_pd_ports(int *num_ports)
+{
+ struct ec_response_charge_port_count resp = {};
+ struct chromeec_command cmd = {
+ .cmd_code = EC_CMD_CHARGE_PORT_COUNT,
+ .cmd_version = 0,
+ .cmd_data_out = &resp,
+ .cmd_size_in = 0,
+ .cmd_size_out = sizeof(resp),
+ .cmd_dev_index = 0,
+ };
+ int rv;
+
+ rv = google_chromeec_command(&cmd);
+ if (rv)
+ return rv;
+
+ *num_ports = resp.port_count;
+ return 0;
+}
+
+int google_chromeec_get_pd_port_caps(int port,
+ struct usb_pd_port_caps *port_caps)
+{
+ struct ec_params_get_pd_port_caps params = {
+ .port = port,
+ };
+ struct ec_response_get_pd_port_caps resp = {};
+ struct chromeec_command cmd = {
+ .cmd_code = EC_CMD_GET_PD_PORT_CAPS,
+ .cmd_version = 0,
+ .cmd_data_in = &params,
+ .cmd_size_in = sizeof(params),
+ .cmd_data_out = &resp,
+ .cmd_size_out = sizeof(resp),
+ .cmd_dev_index = 0,
+ };
+ int rv;
+
+ rv = google_chromeec_command(&cmd);
+ if (rv)
+ return rv;
+
+ port_caps->power_role_cap = resp.pd_power_role_cap;
+ port_caps->try_power_role_cap = resp.pd_try_power_role_cap;
+ port_caps->data_role_cap = resp.pd_data_role_cap;
+ port_caps->port_location = resp.pd_port_location;
+
+ return 0;
+}
+
void google_chromeec_init(void)
{
google_chromeec_log_uptimeinfo();
diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h
index d90d24c767..5ce375e00b 100644
--- a/src/ec/google/chromeec/ec.h
+++ b/src/ec/google/chromeec/ec.h
@@ -299,4 +299,34 @@ int google_chromeec_get_protocol_info(
*/
int google_chromeec_get_cmd_versions(int command, uint32_t *pmask);
+/**
+ * Get number of PD-capable USB ports from EC.
+ *
+ * @param *num_ports If successful, num_ports is the number
+ * of PD-capable USB ports according to the EC.
+ * @return 0 on success, -1 on error
+ */
+int google_chromeec_get_num_pd_ports(int *num_ports);
+
+/* Structure representing the capabilities of a USB-PD port */
+struct usb_pd_port_caps {
+ enum ec_pd_power_role_caps power_role_cap;
+ enum ec_pd_try_power_role_caps try_power_role_cap;
+ enum ec_pd_data_role_caps data_role_cap;
+ enum ec_pd_port_location port_location;
+};
+
+/**
+ * Get role-based capabilities for a USB-PD port
+ *
+ * @param port Which port to get information about
+ * @param *power_role_cap The power-role capabillity of the port
+ * @param *try_power_role_cap The Try-power-role capability of the port
+ * @param *data_role_cap The data role capability of the port
+ * @param *port_location Location of the port on the device
+ * @return 0 on success, -1 on error
+ */
+int google_chromeec_get_pd_port_caps(int port,
+ struct usb_pd_port_caps *port_caps);
+
#endif /* _EC_GOOGLE_CHROMEEC_EC_H */