drivers/firmware/qcom_scm.h

   1 /* Copyright (c) 2010-2015, The Linux Foundation. All rights reserved.
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License version 2 and
   5  * only version 2 as published by the Free Software Foundation.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  */
  12 #ifndef __QCOM_SCM_INT_H
  13 #define __QCOM_SCM_INT_H
  14
  15 #define QCOM_SCM_SVC_BOOT               0x1
  16 #define QCOM_SCM_BOOT_ADDR              0x1
  17 #define QCOM_SCM_BOOT_ADDR_MC           0x11
  18
  19 #define QCOM_SCM_FLAG_HLOS              0x01
  20 #define QCOM_SCM_FLAG_COLDBOOT_MC       0x02
  21 #define QCOM_SCM_FLAG_WARMBOOT_MC       0x04
  22 extern int __qcom_scm_set_warm_boot_addr(struct device *dev, void *entry,
  23                 const cpumask_t *cpus);
  24 extern int __qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus);
  25
  26 #define QCOM_SCM_CMD_TERMINATE_PC       0x2
  27 #define QCOM_SCM_FLUSH_FLAG_MASK        0x3
  28 #define QCOM_SCM_CMD_CORE_HOTPLUGGED    0x10
  29 extern void __qcom_scm_cpu_power_down(u32 flags);
  30
  31 #define QCOM_SCM_SVC_INFO               0x6
  32 #define QCOM_IS_CALL_AVAIL_CMD          0x1
  33 extern int __qcom_scm_is_call_available(struct device *dev, u32 svc_id,
  34                 u32 cmd_id);
  35
  36 #define QCOM_SCM_SVC_HDCP               0x11
  37 #define QCOM_SCM_CMD_HDCP               0x01
  38 extern int __qcom_scm_hdcp_req(struct device *dev,
  39                 struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp);
  40
  41 extern void __qcom_scm_init(void);
  42
  43 #define QCOM_SCM_SVC_PIL                0x2
  44 #define QCOM_SCM_PAS_INIT_IMAGE_CMD     0x1
  45 #define QCOM_SCM_PAS_MEM_SETUP_CMD      0x2
  46 #define QCOM_SCM_PAS_AUTH_AND_RESET_CMD 0x5
  47 #define QCOM_SCM_PAS_SHUTDOWN_CMD       0x6
  48 #define QCOM_SCM_PAS_IS_SUPPORTED_CMD   0x7
  49 #define QCOM_SCM_PAS_MSS_RESET          0xa
  50 extern bool __qcom_scm_pas_supported(struct device *dev, u32 peripheral);
  51 extern int  __qcom_scm_pas_init_image(struct device *dev, u32 peripheral,
  52                 dma_addr_t metadata_phys);
  53 extern int  __qcom_scm_pas_mem_setup(struct device *dev, u32 peripheral,
  54                 phys_addr_t addr, phys_addr_t size);
  55 extern int  __qcom_scm_pas_auth_and_reset(struct device *dev, u32 peripheral);
  56 extern int  __qcom_scm_pas_shutdown(struct device *dev, u32 peripheral);
  57 extern int  __qcom_scm_pas_mss_reset(struct device *dev, bool reset);
  58
  59 /* common error codes */
  60 #define QCOM_SCM_V2_EBUSY       -12
  61 #define QCOM_SCM_ENOMEM         -5
  62 #define QCOM_SCM_EOPNOTSUPP     -4
  63 #define QCOM_SCM_EINVAL_ADDR    -3
  64 #define QCOM_SCM_EINVAL_ARG     -2
  65 #define QCOM_SCM_ERROR          -1
  66 #define QCOM_SCM_INTERRUPTED    1
  67
  68 static inline int qcom_scm_remap_error(int err)
  69 {
  70         switch (err) {
  71         case QCOM_SCM_ERROR:
  72                 return -EIO;
  73         case QCOM_SCM_EINVAL_ADDR:
  74         case QCOM_SCM_EINVAL_ARG:
  75                 return -EINVAL;
  76         case QCOM_SCM_EOPNOTSUPP:
  77                 return -EOPNOTSUPP;
  78         case QCOM_SCM_ENOMEM:
  79                 return -ENOMEM;
  80         case QCOM_SCM_V2_EBUSY:
  81                 return -EBUSY;
  82         }
  83         return -EINVAL;
  84 }
  85
  86 #endif