firmware: qcom: scm: Peripheral Authentication Service

[cascardo/linux.git] / drivers / firmware / qcom_scm-32.c

diff --git a/drivers/firmware/qcom_scm-32.c b/drivers/firmware/qcom_scm-32.c
index bbf1780..7cb6a5d 100644 (file)
--- a/drivers/firmware/qcom_scm-32.c
+++ b/drivers/firmware/qcom_scm-32.c
@@ -458,3 +458,92 @@ int __qcom_scm_hdcp_req(struct device *dev, struct qcom_scm_hdcp_req *req,
 void __qcom_scm_init(void)
 {
 }
+
+bool __qcom_scm_pas_supported(struct device *dev, u32 peripheral)
+{
+       __le32 out;
+       __le32 in;
+       int ret;
+
+       in = cpu_to_le32(peripheral);
+       ret = qcom_scm_call(dev, QCOM_SCM_SVC_PIL,
+                           QCOM_SCM_PAS_IS_SUPPORTED_CMD,
+                           &in, sizeof(in),
+                           &out, sizeof(out));
+
+       return ret ? false : !!out;
+}
+
+int __qcom_scm_pas_init_image(struct device *dev, u32 peripheral,
+                             dma_addr_t metadata_phys)
+{
+       __le32 scm_ret;
+       int ret;
+       struct {
+               __le32 proc;
+               __le32 image_addr;
+       } request;
+
+       request.proc = cpu_to_le32(peripheral);
+       request.image_addr = cpu_to_le32(metadata_phys);
+
+       ret = qcom_scm_call(dev, QCOM_SCM_SVC_PIL,
+                           QCOM_SCM_PAS_INIT_IMAGE_CMD,
+                           &request, sizeof(request),
+                           &scm_ret, sizeof(scm_ret));
+
+       return ret ? : le32_to_cpu(scm_ret);
+}
+
+int __qcom_scm_pas_mem_setup(struct device *dev, u32 peripheral,
+                            phys_addr_t addr, phys_addr_t size)
+{
+       __le32 scm_ret;
+       int ret;
+       struct {
+               __le32 proc;
+               __le32 addr;
+               __le32 len;
+       } request;
+
+       request.proc = cpu_to_le32(peripheral);
+       request.addr = cpu_to_le32(addr);
+       request.len = cpu_to_le32(size);
+
+       ret = qcom_scm_call(dev, QCOM_SCM_SVC_PIL,
+                           QCOM_SCM_PAS_MEM_SETUP_CMD,
+                           &request, sizeof(request),
+                           &scm_ret, sizeof(scm_ret));
+
+       return ret ? : le32_to_cpu(scm_ret);
+}
+
+int __qcom_scm_pas_auth_and_reset(struct device *dev, u32 peripheral)
+{
+       __le32 out;
+       __le32 in;
+       int ret;
+
+       in = cpu_to_le32(peripheral);
+       ret = qcom_scm_call(dev, QCOM_SCM_SVC_PIL,
+                           QCOM_SCM_PAS_AUTH_AND_RESET_CMD,
+                           &in, sizeof(in),
+                           &out, sizeof(out));
+
+       return ret ? : le32_to_cpu(out);
+}
+
+int __qcom_scm_pas_shutdown(struct device *dev, u32 peripheral)
+{
+       __le32 out;
+       __le32 in;
+       int ret;
+
+       in = cpu_to_le32(peripheral);
+       ret = qcom_scm_call(dev, QCOM_SCM_SVC_PIL,
+                           QCOM_SCM_PAS_SHUTDOWN_CMD,
+                           &in, sizeof(in),
+                           &out, sizeof(out));
+
+       return ret ? : le32_to_cpu(out);
+}