diff options
Diffstat (limited to 'drivers/crypto/ux500/cryp/cryp.h')
-rw-r--r-- | drivers/crypto/ux500/cryp/cryp.h | 315 |
1 files changed, 0 insertions, 315 deletions
diff --git a/drivers/crypto/ux500/cryp/cryp.h b/drivers/crypto/ux500/cryp/cryp.h deleted file mode 100644 index 59e1557a620a..000000000000 --- a/drivers/crypto/ux500/cryp/cryp.h +++ /dev/null @@ -1,315 +0,0 @@ -/* 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. - * @irq: IRQ number - * @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; - int irq; - 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_ */ |