| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Andreas Westin | 630 | 97.52% | 1 | 25.00% |
| Lee Jones | 12 | 1.86% | 1 | 25.00% |
| Sebastian Andrzej Siewior | 2 | 0.31% | 1 | 25.00% |
| Thomas Gleixner | 2 | 0.31% | 1 | 25.00% |
| Total | 646 | 4 |
/* SPDX-License-Identifier: GPL-2.0-only */ /** * Copyright (C) ST-Ericsson SA 2010 * Author: Shujuan Chen <shujuan.chen@stericsson.com> for ST-Ericsson. * Author: Jonas Linde <jonas.linde@stericsson.com> for ST-Ericsson. * Author: Joakim Bech <joakim.xx.bech@stericsson.com> for ST-Ericsson. * Author: Berne Hebark <berne.herbark@stericsson.com> for ST-Ericsson. * Author: Niklas Hernaeus <niklas.hernaeus@stericsson.com> for ST-Ericsson. */ #ifndef _CRYP_H_ #define _CRYP_H_ #include <linux/completion.h> #include <linux/dmaengine.h> #include <linux/klist.h> #include <linux/mutex.h> #define DEV_DBG_NAME "crypX crypX:" /* CRYP enable/disable */ enum cryp_crypen { CRYP_CRYPEN_DISABLE = 0, CRYP_CRYPEN_ENABLE = 1 }; /* CRYP Start Computation enable/disable */ enum cryp_start { CRYP_START_DISABLE = 0, CRYP_START_ENABLE = 1 }; /* CRYP Init Signal enable/disable */ enum cryp_init { CRYP_INIT_DISABLE = 0, CRYP_INIT_ENABLE = 1 }; /* Cryp State enable/disable */ enum cryp_state { CRYP_STATE_DISABLE = 0, CRYP_STATE_ENABLE = 1 }; /* Key preparation bit enable */ enum cryp_key_prep { KSE_DISABLED = 0, KSE_ENABLED = 1 }; /* Key size for AES */ #define CRYP_KEY_SIZE_128 (0) #define CRYP_KEY_SIZE_192 (1) #define CRYP_KEY_SIZE_256 (2) /* AES modes */ enum cryp_algo_mode { CRYP_ALGO_TDES_ECB, CRYP_ALGO_TDES_CBC, CRYP_ALGO_DES_ECB, CRYP_ALGO_DES_CBC, CRYP_ALGO_AES_ECB, CRYP_ALGO_AES_CBC, CRYP_ALGO_AES_CTR, CRYP_ALGO_AES_XTS }; /* Cryp Encryption or Decryption */ enum cryp_algorithm_dir { CRYP_ALGORITHM_ENCRYPT, CRYP_ALGORITHM_DECRYPT }; /* Hardware access method */ enum cryp_mode { CRYP_MODE_POLLING, CRYP_MODE_INTERRUPT, CRYP_MODE_DMA }; /** * struct cryp_config - * @keysize: Key size for AES * @algomode: AES modes * @algodir: Cryp Encryption or Decryption * * CRYP configuration structure to be passed to set configuration */ struct cryp_config { int keysize; enum cryp_algo_mode algomode; enum cryp_algorithm_dir algodir; }; /** * struct cryp_protection_config - * @privilege_access: Privileged cryp state enable/disable * @secure_access: Secure cryp state enable/disable * * Protection configuration structure for setting privilage access */ struct cryp_protection_config { enum cryp_state privilege_access; enum cryp_state secure_access; }; /* Cryp status */ enum cryp_status_id { CRYP_STATUS_BUSY = 0x10, CRYP_STATUS_OUTPUT_FIFO_FULL = 0x08, CRYP_STATUS_OUTPUT_FIFO_NOT_EMPTY = 0x04, CRYP_STATUS_INPUT_FIFO_NOT_FULL = 0x02, CRYP_STATUS_INPUT_FIFO_EMPTY = 0x01 }; /* Cryp DMA interface */ #define CRYP_DMA_TX_FIFO 0x08 #define CRYP_DMA_RX_FIFO 0x10 enum cryp_dma_req_type { CRYP_DMA_DISABLE_BOTH, CRYP_DMA_ENABLE_IN_DATA, CRYP_DMA_ENABLE_OUT_DATA, CRYP_DMA_ENABLE_BOTH_DIRECTIONS }; enum cryp_dma_channel { CRYP_DMA_RX = 0, CRYP_DMA_TX }; /* Key registers */ enum cryp_key_reg_index { CRYP_KEY_REG_1, CRYP_KEY_REG_2, CRYP_KEY_REG_3, CRYP_KEY_REG_4 }; /* Key register left and right */ struct cryp_key_value { u32 key_value_left; u32 key_value_right; }; /* Cryp Initialization structure */ enum cryp_init_vector_index { CRYP_INIT_VECTOR_INDEX_0, CRYP_INIT_VECTOR_INDEX_1 }; /* struct cryp_init_vector_value - * @init_value_left * @init_value_right * */ struct cryp_init_vector_value { u32 init_value_left; u32 init_value_right; }; /** * struct cryp_device_context - structure for a cryp context. * @cr: control register * @dmacr: DMA control register * @imsc: Interrupt mask set/clear register * @key_1_l: Key 1l register * @key_1_r: Key 1r register * @key_2_l: Key 2l register * @key_2_r: Key 2r register * @key_3_l: Key 3l register * @key_3_r: Key 3r register * @key_4_l: Key 4l register * @key_4_r: Key 4r register * @init_vect_0_l: Initialization vector 0l register * @init_vect_0_r: Initialization vector 0r register * @init_vect_1_l: Initialization vector 1l register * @init_vect_1_r: Initialization vector 0r register * @din: Data in register * @dout: Data out register * * CRYP power management specifc structure. */ struct cryp_device_context { u32 cr; u32 dmacr; u32 imsc; u32 key_1_l; u32 key_1_r; u32 key_2_l; u32 key_2_r; u32 key_3_l; u32 key_3_r; u32 key_4_l; u32 key_4_r; u32 init_vect_0_l; u32 init_vect_0_r; u32 init_vect_1_l; u32 init_vect_1_r; u32 din; u32 dout; }; struct cryp_dma { dma_cap_mask_t mask; struct completion cryp_dma_complete; struct dma_chan *chan_cryp2mem; struct dma_chan *chan_mem2cryp; struct stedma40_chan_cfg *cfg_cryp2mem; struct stedma40_chan_cfg *cfg_mem2cryp; int sg_src_len; int sg_dst_len; struct scatterlist *sg_src; struct scatterlist *sg_dst; int nents_src; int nents_dst; }; /** * struct cryp_device_data - structure for a cryp device. * @base: Pointer to virtual base address of the cryp device. * @phybase: Pointer to physical memory location of the cryp device. * @dev: Pointer to the devices dev structure. * @clk: Pointer to the device's clock control. * @pwr_regulator: Pointer to the device's power control. * @power_status: Current status of the power. * @ctx_lock: Lock for current_ctx. * @current_ctx: Pointer to the currently allocated context. * @list_node: For inclusion into a klist. * @dma: The dma structure holding channel configuration. * @power_state: TRUE = power state on, FALSE = power state off. * @power_state_spinlock: Spinlock for power_state. * @restore_dev_ctx: TRUE = saved ctx, FALSE = no saved ctx. */ struct cryp_device_data { struct cryp_register __iomem *base; phys_addr_t phybase; struct device *dev; struct clk *clk; struct regulator *pwr_regulator; int power_status; spinlock_t ctx_lock; struct cryp_ctx *current_ctx; struct klist_node list_node; struct cryp_dma dma; bool power_state; spinlock_t power_state_spinlock; bool restore_dev_ctx; }; void cryp_wait_until_done(struct cryp_device_data *device_data); /* Initialization functions */ int cryp_check(struct cryp_device_data *device_data); void cryp_activity(struct cryp_device_data *device_data, enum cryp_crypen cryp_crypen); void cryp_flush_inoutfifo(struct cryp_device_data *device_data); int cryp_set_configuration(struct cryp_device_data *device_data, struct cryp_config *cryp_config, u32 *control_register); void cryp_configure_for_dma(struct cryp_device_data *device_data, enum cryp_dma_req_type dma_req); int cryp_configure_key_values(struct cryp_device_data *device_data, enum cryp_key_reg_index key_reg_index, struct cryp_key_value key_value); int cryp_configure_init_vector(struct cryp_device_data *device_data, enum cryp_init_vector_index init_vector_index, struct cryp_init_vector_value init_vector_value); int cryp_configure_protection(struct cryp_device_data *device_data, struct cryp_protection_config *p_protect_config); /* Power management funtions */ void cryp_save_device_context(struct cryp_device_data *device_data, struct cryp_device_context *ctx, int cryp_mode); void cryp_restore_device_context(struct cryp_device_data *device_data, struct cryp_device_context *ctx); /* Data transfer and status bits. */ int cryp_is_logic_busy(struct cryp_device_data *device_data); int cryp_get_status(struct cryp_device_data *device_data); /** * cryp_write_indata - This routine writes 32 bit data into the data input * register of the cryptography IP. * @device_data: Pointer to the device data struct for base address. * @write_data: Data to write. */ int cryp_write_indata(struct cryp_device_data *device_data, u32 write_data); /** * cryp_read_outdata - This routine reads the data from the data output * register of the CRYP logic * @device_data: Pointer to the device data struct for base address. * @read_data: Read the data from the output FIFO. */ int cryp_read_outdata(struct cryp_device_data *device_data, u32 *read_data); #endif /* _CRYP_H_ */
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