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path: root/drivers/firmware/scmi/sandbox-scmi_agent.c
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Diffstat (limited to 'drivers/firmware/scmi/sandbox-scmi_agent.c')
-rw-r--r--drivers/firmware/scmi/sandbox-scmi_agent.c207
1 files changed, 203 insertions, 4 deletions
diff --git a/drivers/firmware/scmi/sandbox-scmi_agent.c b/drivers/firmware/scmi/sandbox-scmi_agent.c
index 97a5dace15f..4b968205c2f 100644
--- a/drivers/firmware/scmi/sandbox-scmi_agent.c
+++ b/drivers/firmware/scmi/sandbox-scmi_agent.c
@@ -20,17 +20,18 @@
* processing. It simulates few of the SCMI services for some of the
* SCMI protocols embedded in U-Boot. Currently:
* - SCMI clock protocol: emulate 2 agents each exposing few clocks
- * - SCMI reset protocol: emulate 1 agents each exposing a reset
+ * - SCMI reset protocol: emulate 1 agent exposing a reset controller
+ * - SCMI voltage domain protocol: emulate 1 agent exposing 2 regulators
*
- * Agent #0 simulates 2 clocks and 1 reset domain.
+ * Agent #0 simulates 2 clocks, 1 reset domain and 1 voltage domain.
* See IDs in scmi0_clk[]/scmi0_reset[] and "sandbox-scmi-agent@0" in test.dts.
*
* Agent #1 simulates 1 clock.
* See IDs in scmi1_clk[] and "sandbox-scmi-agent@1" in test.dts.
*
- * All clocks are default disabled and reset levels down.
+ * All clocks and regulators are default disabled and reset controller down.
*
- * This Driver exports sandbox_scmi_service_ct() for the test sequence to
+ * This Driver exports sandbox_scmi_service_ctx() for the test sequence to
* get the state of the simulated services (clock state, rate, ...) and
* check back-end device state reflects the request send through the
* various uclass devices, as clocks and reset controllers.
@@ -47,6 +48,11 @@ static struct sandbox_scmi_reset scmi0_reset[] = {
{ .id = 3 },
};
+static struct sandbox_scmi_voltd scmi0_voltd[] = {
+ { .id = 0, .voltage_uv = 3300000 },
+ { .id = 1, .voltage_uv = 1800000 },
+};
+
static struct sandbox_scmi_clk scmi1_clk[] = {
{ .id = 1, .rate = 44 },
};
@@ -83,6 +89,13 @@ static void debug_print_agent_state(struct udevice *dev, char *str)
agent->reset_count,
agent->reset_count ? agent->reset[0].asserted : -1,
agent->reset_count > 1 ? agent->reset[1].asserted : -1);
+ dev_dbg(dev, " scmi%u_voltd (%zu): %u/%d, %u/%d, ...\n",
+ agent->idx,
+ agent->voltd_count,
+ agent->voltd_count ? agent->voltd[0].enabled : -1,
+ agent->voltd_count ? agent->voltd[0].voltage_uv : -1,
+ agent->voltd_count ? agent->voltd[1].enabled : -1,
+ agent->voltd_count ? agent->voltd[1].voltage_uv : -1);
};
static struct sandbox_scmi_clk *get_scmi_clk_state(uint agent_id, uint clock_id)
@@ -125,6 +138,20 @@ static struct sandbox_scmi_reset *get_scmi_reset_state(uint agent_id,
return NULL;
}
+static struct sandbox_scmi_voltd *get_scmi_voltd_state(uint agent_id,
+ uint domain_id)
+{
+ size_t n;
+
+ if (agent_id == 0) {
+ for (n = 0; n < ARRAY_SIZE(scmi0_voltd); n++)
+ if (scmi0_voltd[n].id == domain_id)
+ return scmi0_voltd + n;
+ }
+
+ return NULL;
+}
+
/*
* Sandbox SCMI agent ops
*/
@@ -292,6 +319,160 @@ static int sandbox_scmi_rd_reset(struct udevice *dev, struct scmi_msg *msg)
return 0;
}
+static int sandbox_scmi_voltd_attribs(struct udevice *dev, struct scmi_msg *msg)
+{
+ struct sandbox_scmi_agent *agent = dev_get_priv(dev);
+ struct scmi_voltd_attr_in *in = NULL;
+ struct scmi_voltd_attr_out *out = NULL;
+ struct sandbox_scmi_voltd *voltd_state = NULL;
+
+ if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
+ !msg->out_msg || msg->out_msg_sz < sizeof(*out))
+ return -EINVAL;
+
+ in = (struct scmi_voltd_attr_in *)msg->in_msg;
+ out = (struct scmi_voltd_attr_out *)msg->out_msg;
+
+ voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
+ if (!voltd_state) {
+ dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
+
+ out->status = SCMI_NOT_FOUND;
+ } else {
+ memset(out, 0, sizeof(*out));
+ snprintf(out->name, sizeof(out->name), "regu%u", in->domain_id);
+
+ out->status = SCMI_SUCCESS;
+ }
+
+ return 0;
+}
+
+static int sandbox_scmi_voltd_config_set(struct udevice *dev,
+ struct scmi_msg *msg)
+{
+ struct sandbox_scmi_agent *agent = dev_get_priv(dev);
+ struct scmi_voltd_config_set_in *in = NULL;
+ struct scmi_voltd_config_set_out *out = NULL;
+ struct sandbox_scmi_voltd *voltd_state = NULL;
+
+ if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
+ !msg->out_msg || msg->out_msg_sz < sizeof(*out))
+ return -EINVAL;
+
+ in = (struct scmi_voltd_config_set_in *)msg->in_msg;
+ out = (struct scmi_voltd_config_set_out *)msg->out_msg;
+
+ voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
+ if (!voltd_state) {
+ dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
+
+ out->status = SCMI_NOT_FOUND;
+ } else if (in->config & ~SCMI_VOLTD_CONFIG_MASK) {
+ dev_err(dev, "Invalid config value 0x%x\n", in->config);
+
+ out->status = SCMI_INVALID_PARAMETERS;
+ } else if (in->config != SCMI_VOLTD_CONFIG_ON &&
+ in->config != SCMI_VOLTD_CONFIG_OFF) {
+ dev_err(dev, "Unexpected custom value 0x%x\n", in->config);
+
+ out->status = SCMI_INVALID_PARAMETERS;
+ } else {
+ voltd_state->enabled = in->config == SCMI_VOLTD_CONFIG_ON;
+ out->status = SCMI_SUCCESS;
+ }
+
+ return 0;
+}
+
+static int sandbox_scmi_voltd_config_get(struct udevice *dev,
+ struct scmi_msg *msg)
+{
+ struct sandbox_scmi_agent *agent = dev_get_priv(dev);
+ struct scmi_voltd_config_get_in *in = NULL;
+ struct scmi_voltd_config_get_out *out = NULL;
+ struct sandbox_scmi_voltd *voltd_state = NULL;
+
+ if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
+ !msg->out_msg || msg->out_msg_sz < sizeof(*out))
+ return -EINVAL;
+
+ in = (struct scmi_voltd_config_get_in *)msg->in_msg;
+ out = (struct scmi_voltd_config_get_out *)msg->out_msg;
+
+ voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
+ if (!voltd_state) {
+ dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
+
+ out->status = SCMI_NOT_FOUND;
+ } else {
+ if (voltd_state->enabled)
+ out->config = SCMI_VOLTD_CONFIG_ON;
+ else
+ out->config = SCMI_VOLTD_CONFIG_OFF;
+
+ out->status = SCMI_SUCCESS;
+ }
+
+ return 0;
+}
+
+static int sandbox_scmi_voltd_level_set(struct udevice *dev,
+ struct scmi_msg *msg)
+{
+ struct sandbox_scmi_agent *agent = dev_get_priv(dev);
+ struct scmi_voltd_level_set_in *in = NULL;
+ struct scmi_voltd_level_set_out *out = NULL;
+ struct sandbox_scmi_voltd *voltd_state = NULL;
+
+ if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
+ !msg->out_msg || msg->out_msg_sz < sizeof(*out))
+ return -EINVAL;
+
+ in = (struct scmi_voltd_level_set_in *)msg->in_msg;
+ out = (struct scmi_voltd_level_set_out *)msg->out_msg;
+
+ voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
+ if (!voltd_state) {
+ dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
+
+ out->status = SCMI_NOT_FOUND;
+ } else {
+ voltd_state->voltage_uv = in->voltage_level;
+ out->status = SCMI_SUCCESS;
+ }
+
+ return 0;
+}
+
+static int sandbox_scmi_voltd_level_get(struct udevice *dev,
+ struct scmi_msg *msg)
+{
+ struct sandbox_scmi_agent *agent = dev_get_priv(dev);
+ struct scmi_voltd_level_get_in *in = NULL;
+ struct scmi_voltd_level_get_out *out = NULL;
+ struct sandbox_scmi_voltd *voltd_state = NULL;
+
+ if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
+ !msg->out_msg || msg->out_msg_sz < sizeof(*out))
+ return -EINVAL;
+
+ in = (struct scmi_voltd_level_get_in *)msg->in_msg;
+ out = (struct scmi_voltd_level_get_out *)msg->out_msg;
+
+ voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
+ if (!voltd_state) {
+ dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
+
+ out->status = SCMI_NOT_FOUND;
+ } else {
+ out->voltage_level = voltd_state->voltage_uv;
+ out->status = SCMI_SUCCESS;
+ }
+
+ return 0;
+}
+
static int sandbox_scmi_test_process_msg(struct udevice *dev,
struct scmi_msg *msg)
{
@@ -318,6 +499,22 @@ static int sandbox_scmi_test_process_msg(struct udevice *dev,
break;
}
break;
+ case SCMI_PROTOCOL_ID_VOLTAGE_DOMAIN:
+ switch (msg->message_id) {
+ case SCMI_VOLTAGE_DOMAIN_ATTRIBUTES:
+ return sandbox_scmi_voltd_attribs(dev, msg);
+ case SCMI_VOLTAGE_DOMAIN_CONFIG_SET:
+ return sandbox_scmi_voltd_config_set(dev, msg);
+ case SCMI_VOLTAGE_DOMAIN_CONFIG_GET:
+ return sandbox_scmi_voltd_config_get(dev, msg);
+ case SCMI_VOLTAGE_DOMAIN_LEVEL_SET:
+ return sandbox_scmi_voltd_level_set(dev, msg);
+ case SCMI_VOLTAGE_DOMAIN_LEVEL_GET:
+ return sandbox_scmi_voltd_level_get(dev, msg);
+ default:
+ break;
+ }
+ break;
case SCMI_PROTOCOL_ID_BASE:
case SCMI_PROTOCOL_ID_POWER_DOMAIN:
case SCMI_PROTOCOL_ID_SYSTEM:
@@ -369,6 +566,8 @@ static int sandbox_scmi_test_probe(struct udevice *dev)
.clk_count = ARRAY_SIZE(scmi0_clk),
.reset = scmi0_reset,
.reset_count = ARRAY_SIZE(scmi0_reset),
+ .voltd = scmi0_voltd,
+ .voltd_count = ARRAY_SIZE(scmi0_voltd),
};
break;
case '1':
generated by cgit v1.2.3 (git 2.0.4) at 2025-07-17 09:17:46 +0000