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_config_cmd(struct atmel_i2c_cmd *cmd)  in atmel_i2c_init_read_config_cmd()  argument
56 	cmd->word_addr = COMMAND;  in atmel_i2c_init_read_config_cmd()
57 	cmd->opcode = OPCODE_READ;  in atmel_i2c_init_read_config_cmd()
62 	cmd->param1 = CONFIGURATION_ZONE;  in atmel_i2c_init_read_config_cmd()
63 	cmd->param2 = cpu_to_le16(DEVICE_LOCK_ADDR);  in atmel_i2c_init_read_config_cmd()
64 	cmd->count = READ_COUNT;  in atmel_i2c_init_read_config_cmd()
66 	atmel_i2c_checksum(cmd);  in atmel_i2c_init_read_config_cmd()
68 	cmd->msecs = MAX_EXEC_TIME_READ;  in atmel_i2c_init_read_config_cmd()
69 	cmd->rxsize = READ_RSP_SIZE;  in atmel_i2c_init_read_config_cmd()
73 int atmel_i2c_init_read_otp_cmd(struct atmel_i2c_cmd *cmd, u16 addr)  in atmel_i2c_init_read_otp_cmd()  argument
78 	cmd->word_addr = COMMAND;  in atmel_i2c_init_read_otp_cmd()
79 	cmd->opcode = OPCODE_READ;  in atmel_i2c_init_read_otp_cmd()
84 	cmd->param1 = OTP_ZONE;  in atmel_i2c_init_read_otp_cmd()
85 	cmd->param2 = cpu_to_le16(addr);  in atmel_i2c_init_read_otp_cmd()
86 	cmd->count = READ_COUNT;  in atmel_i2c_init_read_otp_cmd()
88 	atmel_i2c_checksum(cmd);  in atmel_i2c_init_read_otp_cmd()
90 	cmd->msecs = MAX_EXEC_TIME_READ;  in atmel_i2c_init_read_otp_cmd()
91 	cmd->rxsize = READ_RSP_SIZE;  in atmel_i2c_init_read_otp_cmd()
97 void atmel_i2c_init_random_cmd(struct atmel_i2c_cmd *cmd)  in atmel_i2c_init_random_cmd()  argument
99 	cmd->word_addr = COMMAND;  in atmel_i2c_init_random_cmd()
100 	cmd->opcode = OPCODE_RANDOM;  in atmel_i2c_init_random_cmd()
101 	cmd->param1 = 0;  in atmel_i2c_init_random_cmd()
102 	cmd->param2 = 0;  in atmel_i2c_init_random_cmd()
103 	cmd->count = RANDOM_COUNT;  in atmel_i2c_init_random_cmd()
105 	atmel_i2c_checksum(cmd);  in atmel_i2c_init_random_cmd()
107 	cmd->msecs = MAX_EXEC_TIME_RANDOM;  in atmel_i2c_init_random_cmd()
108 	cmd->rxsize = RANDOM_RSP_SIZE;  in atmel_i2c_init_random_cmd()
112 void atmel_i2c_init_genkey_cmd(struct atmel_i2c_cmd *cmd, u16 keyid)  in atmel_i2c_init_genkey_cmd()  argument
114 	cmd->word_addr = COMMAND;  in atmel_i2c_init_genkey_cmd()
115 	cmd->count = GENKEY_COUNT;  in atmel_i2c_init_genkey_cmd()
116 	cmd->opcode = OPCODE_GENKEY;  in atmel_i2c_init_genkey_cmd()
117 	cmd->param1 = GENKEY_MODE_PRIVATE;  in atmel_i2c_init_genkey_cmd()
119 	cmd->param2 = cpu_to_le16(keyid);  in atmel_i2c_init_genkey_cmd()
121 	atmel_i2c_checksum(cmd);  in atmel_i2c_init_genkey_cmd()
123 	cmd->msecs = MAX_EXEC_TIME_GENKEY;  in atmel_i2c_init_genkey_cmd()
124 	cmd->rxsize = GENKEY_RSP_SIZE;  in atmel_i2c_init_genkey_cmd()
128 int atmel_i2c_init_ecdh_cmd(struct atmel_i2c_cmd *cmd,  in atmel_i2c_init_ecdh_cmd()  argument
133 	cmd->word_addr = COMMAND;  in atmel_i2c_init_ecdh_cmd()
134 	cmd->count = ECDH_COUNT;  in atmel_i2c_init_ecdh_cmd()
135 	cmd->opcode = OPCODE_ECDH;  in atmel_i2c_init_ecdh_cmd()
136 	cmd->param1 = ECDH_PREFIX_MODE;  in atmel_i2c_init_ecdh_cmd()
138 	cmd->param2 = cpu_to_le16(DATA_SLOT_2);  in atmel_i2c_init_ecdh_cmd()
148 				   cmd->data, ATMEL_ECC_PUBKEY_SIZE);  in atmel_i2c_init_ecdh_cmd()
152 	atmel_i2c_checksum(cmd);  in atmel_i2c_init_ecdh_cmd()
154 	cmd->msecs = MAX_EXEC_TIME_ECDH;  in atmel_i2c_init_ecdh_cmd()
155 	cmd->rxsize = ECDH_RSP_SIZE;  in atmel_i2c_init_ecdh_cmd()
241 int atmel_i2c_send_receive(struct i2c_client *client, struct atmel_i2c_cmd *cmd)  in atmel_i2c_send_receive()  argument
253 	ret = i2c_master_send(client, (u8 *)cmd, cmd->count + WORD_ADDR_SIZE);  in atmel_i2c_send_receive()
258 	msleep(cmd->msecs);  in atmel_i2c_send_receive()
261 	ret = i2c_master_recv(client, cmd->data, cmd->rxsize);  in atmel_i2c_send_receive()
271 	return atmel_i2c_status(&client->dev, cmd->data);  in atmel_i2c_send_receive()
282 	struct atmel_i2c_cmd *cmd = &work_data->cmd;  in atmel_i2c_work_handler()  local
286 	status = atmel_i2c_send_receive(client, cmd);  in atmel_i2c_work_handler()
321 	struct atmel_i2c_cmd *cmd;  in device_sanity_check()  local
324 	cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);  in device_sanity_check()
325 	if (!cmd)  in device_sanity_check()
328 	atmel_i2c_init_read_config_cmd(cmd);  in device_sanity_check()
330 	ret = atmel_i2c_send_receive(client, cmd);  in device_sanity_check()
340 	if (cmd->data[LOCK_CONFIG_IDX] || cmd->data[LOCK_VALUE_IDX]) {  in device_sanity_check()
347 	kfree(cmd);  in device_sanity_check()