/**
* i2400m_set_idle_timeout - Set the device's idle mode timeout
*
* @i2400m: i2400m device descriptor
*
* @msecs: milliseconds for the timeout to enter idle mode. Between
* 100 to 300000 (5m); 0 to disable. In increments of 100.
*
* After this @msecs of the link being idle (no data being sent or
* received), the device will negotiate with the basestation entering
* idle mode for saving power. The connection is maintained, but
* getting out of it (done in tx.c) will require some negotiation,
* possible crypto re-handshake and a possible DHCP re-lease.
*
* Only available if fw_version >= 0x00090002.
*
* Returns: 0 if ok, < 0 errno code on error.
*/
int i2400m_set_idle_timeout(struct i2400m *i2400m, unsigned msecs)
{
int result;
struct device *dev = i2400m_dev(i2400m);
struct sk_buff *ack_skb;
struct {
struct i2400m_l3l4_hdr hdr;
struct i2400m_tlv_config_idle_timeout cit;
} *cmd;
const struct i2400m_l3l4_hdr *ack;
size_t ack_len;
char strerr[32];
result = -ENOSYS;
if (i2400m_le_v1_3(i2400m))
goto error_alloc;
result = -ENOMEM;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (cmd == NULL)
goto error_alloc;
cmd->hdr.type = cpu_to_le16(I2400M_MT_GET_STATE);
cmd->hdr.length = cpu_to_le16(sizeof(*cmd) - sizeof(cmd->hdr));
cmd->hdr.version = cpu_to_le16(I2400M_L3L4_VERSION);
cmd->cit.hdr.type =
cpu_to_le16(I2400M_TLV_CONFIG_IDLE_TIMEOUT);
cmd->cit.hdr.length = cpu_to_le16(sizeof(cmd->cit.timeout));
cmd->cit.timeout = cpu_to_le32(msecs);
ack_skb = i2400m_msg_to_dev(i2400m, cmd, sizeof(*cmd));
if (IS_ERR(ack_skb)) {
dev_err(dev, "Failed to issue 'set idle timeout' command: "
"%ld\n", PTR_ERR(ack_skb));
result = PTR_ERR(ack_skb);
goto error_msg_to_dev;
}
ack = wimax_msg_data_len(ack_skb, &ack_len);
result = i2400m_msg_check_status(ack, strerr, sizeof(strerr));
if (result < 0) {
dev_err(dev, "'set idle timeout' (0x%04x) command failed: "
"%d - %s\n", I2400M_MT_GET_STATE, result, strerr);
goto error_cmd_failed;
}
result = 0;
kfree_skb(ack_skb);
error_cmd_failed:
error_msg_to_dev:
kfree(cmd);
error_alloc:
return result;
}
/**
* i2400m_dev_initialize - Initialize the device once communications are ready
*
* @i2400m: device descriptor
*
* Returns: 0 if ok, < 0 errno code on error.
*
* Configures the device to work the way we like it.
*
* At the point of this call, the device is registered with the WiMAX
* and netdev stacks, firmware is uploaded and we can talk to the
* device normally.
*/
int i2400m_dev_initialize(struct i2400m *i2400m)
{
int result;
struct device *dev = i2400m_dev(i2400m);
struct i2400m_tlv_config_idle_parameters idle_params;
struct i2400m_tlv_config_idle_timeout idle_timeout;
struct i2400m_tlv_config_d2h_data_format df;
struct i2400m_tlv_config_dl_host_reorder dlhr;
const struct i2400m_tlv_hdr *args[9];
unsigned argc = 0;
d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
if (i2400m_passive_mode)
goto out_passive;
/* Disable idle mode? (enabled by default) */
if (i2400m_idle_mode_disabled) {
if (i2400m_le_v1_3(i2400m)) {
idle_params.hdr.type =
cpu_to_le16(I2400M_TLV_CONFIG_IDLE_PARAMETERS);
idle_params.hdr.length = cpu_to_le16(
sizeof(idle_params) - sizeof(idle_params.hdr));
idle_params.idle_timeout = 0;
idle_params.idle_paging_interval = 0;
args[argc++] = &idle_params.hdr;
} else {
idle_timeout.hdr.type =
cpu_to_le16(I2400M_TLV_CONFIG_IDLE_TIMEOUT);
idle_timeout.hdr.length = cpu_to_le16(
sizeof(idle_timeout) - sizeof(idle_timeout.hdr));
idle_timeout.timeout = 0;
args[argc++] = &idle_timeout.hdr;
}
}
if (i2400m_ge_v1_4(i2400m)) {
/* Enable extended RX data format? */
df.hdr.type =
cpu_to_le16(I2400M_TLV_CONFIG_D2H_DATA_FORMAT);
df.hdr.length = cpu_to_le16(
sizeof(df) - sizeof(df.hdr));
df.format = 1;
args[argc++] = &df.hdr;
/* Enable RX data reordering?
* (switch flipped in rx.c:i2400m_rx_setup() after fw upload) */
if (i2400m->rx_reorder) {
dlhr.hdr.type =
cpu_to_le16(I2400M_TLV_CONFIG_DL_HOST_REORDER);
dlhr.hdr.length = cpu_to_le16(
sizeof(dlhr) - sizeof(dlhr.hdr));
dlhr.reorder = 1;
args[argc++] = &dlhr.hdr;
}
}
result = i2400m_set_init_config(i2400m, args, argc);
if (result < 0)
goto error;
out_passive:
/*
* Update state: Here it just calls a get state; parsing the
* result (System State TLV and RF Status TLV [done in the rx
* path hooks]) will set the hardware and software RF-Kill
* status.
*/
result = i2400m_cmd_get_state(i2400m);
error:
if (result < 0)
dev_err(dev, "failed to initialize the device: %d\n", result);
d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result);
return result;
}
int i2400m_dev_initialize(struct i2400m *i2400m)
{
int result;
struct device *dev = i2400m_dev(i2400m);
struct i2400m_tlv_config_idle_parameters idle_params;
struct i2400m_tlv_config_idle_timeout idle_timeout;
struct i2400m_tlv_config_d2h_data_format df;
struct i2400m_tlv_config_dl_host_reorder dlhr;
const struct i2400m_tlv_hdr *args[9];
unsigned argc = 0;
d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
if (i2400m_passive_mode)
goto out_passive;
if (i2400m_idle_mode_disabled) {
if (i2400m_le_v1_3(i2400m)) {
idle_params.hdr.type =
cpu_to_le16(I2400M_TLV_CONFIG_IDLE_PARAMETERS);
idle_params.hdr.length = cpu_to_le16(
sizeof(idle_params) - sizeof(idle_params.hdr));
idle_params.idle_timeout = 0;
idle_params.idle_paging_interval = 0;
args[argc++] = &idle_params.hdr;
} else {
idle_timeout.hdr.type =
cpu_to_le16(I2400M_TLV_CONFIG_IDLE_TIMEOUT);
idle_timeout.hdr.length = cpu_to_le16(
sizeof(idle_timeout) - sizeof(idle_timeout.hdr));
idle_timeout.timeout = 0;
args[argc++] = &idle_timeout.hdr;
}
}
if (i2400m_ge_v1_4(i2400m)) {
df.hdr.type =
cpu_to_le16(I2400M_TLV_CONFIG_D2H_DATA_FORMAT);
df.hdr.length = cpu_to_le16(
sizeof(df) - sizeof(df.hdr));
df.format = 1;
args[argc++] = &df.hdr;
if (i2400m->rx_reorder) {
dlhr.hdr.type =
cpu_to_le16(I2400M_TLV_CONFIG_DL_HOST_REORDER);
dlhr.hdr.length = cpu_to_le16(
sizeof(dlhr) - sizeof(dlhr.hdr));
dlhr.reorder = 1;
args[argc++] = &dlhr.hdr;
}
}
result = i2400m_set_init_config(i2400m, args, argc);
if (result < 0)
goto error;
out_passive:
result = i2400m_cmd_get_state(i2400m);
error:
if (result < 0)
dev_err(dev, "failed to initialize the device: %d\n", result);
d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result);
return result;
}
