45 static void atmel_i2c_checksum(struct atmel_i2c_cmd *cmd)  in atmel_i2c_checksum()  argument
47 	u8 *data = &cmd->count;  in atmel_i2c_checksum()
48 	size_t len = cmd->count - CRC_SIZE;  in atmel_i2c_checksum()
54 void atmel_i2c_init_read_cmd(struct atmel_i2c_cmd *cmd)  in atmel_i2c_init_read_cmd()  argument
56 	cmd->word_addr = COMMAND;  in atmel_i2c_init_read_cmd()
57 	cmd->opcode = OPCODE_READ;  in atmel_i2c_init_read_cmd()
62 	cmd->param1 = CONFIG_ZONE;  in atmel_i2c_init_read_cmd()
63 	cmd->param2 = cpu_to_le16(DEVICE_LOCK_ADDR);  in atmel_i2c_init_read_cmd()
64 	cmd->count = READ_COUNT;  in atmel_i2c_init_read_cmd()
66 	atmel_i2c_checksum(cmd);  in atmel_i2c_init_read_cmd()
68 	cmd->msecs = MAX_EXEC_TIME_READ;  in atmel_i2c_init_read_cmd()
69 	cmd->rxsize = READ_RSP_SIZE;  in atmel_i2c_init_read_cmd()
73 void atmel_i2c_init_random_cmd(struct atmel_i2c_cmd *cmd)  in atmel_i2c_init_random_cmd()  argument
75 	cmd->word_addr = COMMAND;  in atmel_i2c_init_random_cmd()
76 	cmd->opcode = OPCODE_RANDOM;  in atmel_i2c_init_random_cmd()
77 	cmd->param1 = 0;  in atmel_i2c_init_random_cmd()
78 	cmd->param2 = 0;  in atmel_i2c_init_random_cmd()
79 	cmd->count = RANDOM_COUNT;  in atmel_i2c_init_random_cmd()
81 	atmel_i2c_checksum(cmd);  in atmel_i2c_init_random_cmd()
83 	cmd->msecs = MAX_EXEC_TIME_RANDOM;  in atmel_i2c_init_random_cmd()
84 	cmd->rxsize = RANDOM_RSP_SIZE;  in atmel_i2c_init_random_cmd()
88 void atmel_i2c_init_genkey_cmd(struct atmel_i2c_cmd *cmd, u16 keyid)  in atmel_i2c_init_genkey_cmd()  argument
90 	cmd->word_addr = COMMAND;  in atmel_i2c_init_genkey_cmd()
91 	cmd->count = GENKEY_COUNT;  in atmel_i2c_init_genkey_cmd()
92 	cmd->opcode = OPCODE_GENKEY;  in atmel_i2c_init_genkey_cmd()
93 	cmd->param1 = GENKEY_MODE_PRIVATE;  in atmel_i2c_init_genkey_cmd()
95 	cmd->param2 = cpu_to_le16(keyid);  in atmel_i2c_init_genkey_cmd()
97 	atmel_i2c_checksum(cmd);  in atmel_i2c_init_genkey_cmd()
99 	cmd->msecs = MAX_EXEC_TIME_GENKEY;  in atmel_i2c_init_genkey_cmd()
100 	cmd->rxsize = GENKEY_RSP_SIZE;  in atmel_i2c_init_genkey_cmd()
104 int atmel_i2c_init_ecdh_cmd(struct atmel_i2c_cmd *cmd,  in atmel_i2c_init_ecdh_cmd()  argument
109 	cmd->word_addr = COMMAND;  in atmel_i2c_init_ecdh_cmd()
110 	cmd->count = ECDH_COUNT;  in atmel_i2c_init_ecdh_cmd()
111 	cmd->opcode = OPCODE_ECDH;  in atmel_i2c_init_ecdh_cmd()
112 	cmd->param1 = ECDH_PREFIX_MODE;  in atmel_i2c_init_ecdh_cmd()
114 	cmd->param2 = cpu_to_le16(DATA_SLOT_2);  in atmel_i2c_init_ecdh_cmd()
124 				   cmd->data, ATMEL_ECC_PUBKEY_SIZE);  in atmel_i2c_init_ecdh_cmd()
128 	atmel_i2c_checksum(cmd);  in atmel_i2c_init_ecdh_cmd()
130 	cmd->msecs = MAX_EXEC_TIME_ECDH;  in atmel_i2c_init_ecdh_cmd()
131 	cmd->rxsize = ECDH_RSP_SIZE;  in atmel_i2c_init_ecdh_cmd()
217 int atmel_i2c_send_receive(struct i2c_client *client, struct atmel_i2c_cmd *cmd)  in atmel_i2c_send_receive()  argument
229 	ret = i2c_master_send(client, (u8 *)cmd, cmd->count + WORD_ADDR_SIZE);  in atmel_i2c_send_receive()
234 	msleep(cmd->msecs);  in atmel_i2c_send_receive()
237 	ret = i2c_master_recv(client, cmd->data, cmd->rxsize);  in atmel_i2c_send_receive()
247 	return atmel_i2c_status(&client->dev, cmd->data);  in atmel_i2c_send_receive()
258 	struct atmel_i2c_cmd *cmd = &work_data->cmd;  in atmel_i2c_work_handler()  local
262 	status = atmel_i2c_send_receive(client, cmd);  in atmel_i2c_work_handler()
289 	struct atmel_i2c_cmd *cmd;  in device_sanity_check()  local
292 	cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);  in device_sanity_check()
293 	if (!cmd)  in device_sanity_check()
296 	atmel_i2c_init_read_cmd(cmd);  in device_sanity_check()
298 	ret = atmel_i2c_send_receive(client, cmd);  in device_sanity_check()
308 	if (cmd->data[LOCK_CONFIG_IDX] || cmd->data[LOCK_VALUE_IDX]) {  in device_sanity_check()
315 	kfree(cmd);  in device_sanity_check()