/**
* send the 4.3.6 dot command (os state) to the service processor
* During driver init this function is called with os state "up".
* This causes the service processor to start sending heartbeats the
* driver.
* During driver exit the function is called with os state "down",
* causing the service processor to stop the heartbeats.
*/
int ibmasm_send_os_state(struct service_processor *sp, int os_state)
{
struct command *cmd;
struct os_state_command *os_state_cmd;
int result = 0;
cmd = ibmasm_new_command(sizeof(struct os_state_command));
if (cmd == NULL)
return -ENOMEM;
os_state_cmd = (struct os_state_command *)cmd->buffer;
os_state_cmd->header.type = sp_write;
os_state_cmd->header.command_size = 3;
os_state_cmd->header.data_size = 1;
os_state_cmd->header.status = 0;
os_state_cmd->command[0] = 4;
os_state_cmd->command[1] = 3;
os_state_cmd->command[2] = 6;
os_state_cmd->data = os_state;
ibmasm_exec_command(sp, cmd);
ibmasm_wait_for_response(cmd, IBMASM_CMD_TIMEOUT_NORMAL);
if (cmd->status != IBMASM_CMD_COMPLETE)
result = -ENODEV;
command_put(cmd);
return result;
}
void ibmasm_receive_heartbeat(struct service_processor *sp, void *message, size_t size)
{
struct command *cmd = sp->heartbeat;
struct dot_command_header *header = (struct dot_command_header *)cmd->buffer;
if (suspend_heartbeats)
return;
/* return the received dot command to sender */
cmd->status = IBMASM_CMD_PENDING;
size = min(size, cmd->buffer_size);
memcpy(cmd->buffer, message, size);
header->type = sp_write;
ibmasm_exec_command(sp, cmd);
}
void ibmasm_receive_heartbeat(struct service_processor *sp, void *message, size_t size)
{
struct command *cmd = sp->heartbeat;
struct dot_command_header *header = (struct dot_command_header *)cmd->buffer;
char tsbuf[32];
dbg("%s:%d at %s\n", __func__, __LINE__, get_timestamp(tsbuf));
if (suspend_heartbeats)
return;
/* */
cmd->status = IBMASM_CMD_PENDING;
size = min(size, cmd->buffer_size);
memcpy_fromio(cmd->buffer, message, size);
header->type = sp_write;
ibmasm_exec_command(sp, cmd);
}
/**
* send the 4.3.5.10 dot command (driver VPD) to the service processor
*/
int ibmasm_send_driver_vpd(struct service_processor *sp)
{
struct command *command;
struct dot_command_header *header;
u8 *vpd_command;
u8 *vpd_data;
int result = 0;
command = ibmasm_new_command(INIT_BUFFER_SIZE);
if (command == NULL)
return -ENOMEM;
header = (struct dot_command_header *)command->buffer;
header->type = sp_write;
header->command_size = 4;
header->data_size = 16;
header->status = 0;
header->reserved = 0;
vpd_command = command->buffer + sizeof(struct dot_command_header);
vpd_command[0] = 0x4;
vpd_command[1] = 0x3;
vpd_command[2] = 0x5;
vpd_command[3] = 0xa;
vpd_data = vpd_command + header->command_size;
vpd_data[0] = 0;
strcat(vpd_data, IBMASM_DRIVER_VPD);
vpd_data[10] = 0;
vpd_data[15] = 0;
ibmasm_exec_command(sp, command);
ibmasm_wait_for_response(command, IBMASM_CMD_TIMEOUT_NORMAL);
if (command->status != IBMASM_CMD_COMPLETE)
result = -ENODEV;
command_put(command);
return result;
}