drivers/media/pci/intel/ipu6/ipu6-buttress.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Copyright (C) 2013--2024 Intel Corporation */
   3
   4 #ifndef IPU6_BUTTRESS_H
   5 #define IPU6_BUTTRESS_H
   6
   7 #include <linux/completion.h>
   8 #include <linux/irqreturn.h>
   9 #include <linux/list.h>
  10 #include <linux/mutex.h>
  11
  12 struct device;
  13 struct firmware;
  14 struct ipu6_device;
  15 struct ipu6_bus_device;
  16
  17 #define BUTTRESS_PS_FREQ_STEP           25U
  18 #define BUTTRESS_MIN_FORCE_PS_FREQ      (BUTTRESS_PS_FREQ_STEP * 8)
  19 #define BUTTRESS_MAX_FORCE_PS_FREQ      (BUTTRESS_PS_FREQ_STEP * 32)
  20
  21 #define BUTTRESS_IS_FREQ_STEP           25U
  22 #define BUTTRESS_MIN_FORCE_IS_FREQ      (BUTTRESS_IS_FREQ_STEP * 8)
  23 #define BUTTRESS_MAX_FORCE_IS_FREQ      (BUTTRESS_IS_FREQ_STEP * 22)
  24
  25 struct ipu6_buttress_ctrl {
  26         u32 freq_ctl, pwr_sts_shift, pwr_sts_mask, pwr_sts_on, pwr_sts_off;
  27         unsigned int ratio;
  28         unsigned int qos_floor;
  29         bool started;
  30 };
  31
  32 struct ipu6_buttress_ipc {
  33         struct completion send_complete;
  34         struct completion recv_complete;
  35         u32 nack;
  36         u32 nack_mask;
  37         u32 recv_data;
  38         u32 csr_out;
  39         u32 csr_in;
  40         u32 db0_in;
  41         u32 db0_out;
  42         u32 data0_out;
  43         u32 data0_in;
  44 };
  45
  46 struct ipu6_buttress {
  47         struct mutex power_mutex, auth_mutex, cons_mutex, ipc_mutex;
  48         struct ipu6_buttress_ipc cse;
  49         struct list_head constraints;
  50         u32 wdt_cached_value;
  51         bool force_suspend;
  52         u32 ref_clk;
  53 };
  54
  55 struct ipu6_ipc_buttress_bulk_msg {
  56         u32 cmd;
  57         u32 expected_resp;
  58         bool require_resp;
  59         u8 cmd_size;
  60 };
  61
  62 int ipu6_buttress_ipc_reset(struct ipu6_device *isp,
  63                             struct ipu6_buttress_ipc *ipc);
  64 int ipu6_buttress_map_fw_image(struct ipu6_bus_device *sys,
  65                                const struct firmware *fw,
  66                                struct sg_table *sgt);
  67 void ipu6_buttress_unmap_fw_image(struct ipu6_bus_device *sys,
  68                                   struct sg_table *sgt);
  69 int ipu6_buttress_power(struct device *dev, struct ipu6_buttress_ctrl *ctrl,
  70                         bool on);
  71 bool ipu6_buttress_get_secure_mode(struct ipu6_device *isp);
  72 int ipu6_buttress_authenticate(struct ipu6_device *isp);
  73 int ipu6_buttress_reset_authentication(struct ipu6_device *isp);
  74 bool ipu6_buttress_auth_done(struct ipu6_device *isp);
  75 int ipu6_buttress_start_tsc_sync(struct ipu6_device *isp);
  76 void ipu6_buttress_tsc_read(struct ipu6_device *isp, u64 *val);
  77 u64 ipu6_buttress_tsc_ticks_to_ns(u64 ticks, const struct ipu6_device *isp);
  78
  79 irqreturn_t ipu6_buttress_isr(int irq, void *isp_ptr);
  80 irqreturn_t ipu6_buttress_isr_threaded(int irq, void *isp_ptr);
  81 int ipu6_buttress_init(struct ipu6_device *isp);
  82 void ipu6_buttress_exit(struct ipu6_device *isp);
  83 void ipu6_buttress_csi_port_config(struct ipu6_device *isp,
  84                                    u32 legacy, u32 combo);
  85 void ipu6_buttress_restore(struct ipu6_device *isp);
  86 #endif /* IPU6_BUTTRESS_H */