#include <string.h>
#include <ipxe/process.h>
#include <ipxe/console.h>
#include <ipxe/keys.h>
#include <ipxe/nap.h>
#include <ipxe/init.h>
#include <ipxe/timer.h>

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)

	FILE_SECBOOT (PERMITTED)

unsigned long	currticks (void)
	Get current system time in ticks. More...

void	udelay (unsigned long usecs)
	Delay for a fixed number of microseconds. More...

void	mdelay (unsigned long msecs)
	Delay for a fixed number of milliseconds. More...

static unsigned int	sleep_interruptible (unsigned int secs, int(*interrupted)(void))
	Sleep (possibly interruptibly) for a fixed number of seconds. More...

static int	keypress_interrupted (void)
	Check if sleep has been interrupted by keypress. More...

unsigned int	sleep (unsigned int secs)
	Sleep (interruptibly) for a fixed number of seconds. More...

void	sleep_fixed (unsigned int secs)
	Sleep (uninterruptibly) for a fixed number of seconds. More...

static void	timer_probe (void)
	Find a working timer. More...

struct init_fn timer_init_fn	__init_fn (INIT_EARLY)
	Timer initialisation function. More...

	REQUIRING_SYMBOL (timer_init_fn)

	REQUIRE_OBJECT (config_timer)

Variables
static struct timer *	timer
	Current timer. More...

Function Documentation

◆ FILE_LICENCE()

FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )

◆ FILE_SECBOOT()

FILE_SECBOOT ( PERMITTED )

◆ currticks()

unsigned long currticks ( void )

Get current system time in ticks.

Return values

ticks Current time, in ticks

Definition at line 43 of file timer.c.

                                  {
 
         /* Guard against use during early initialisation */
         if ( ! timer ) {
                 DBGC ( &timer, "TIMER currticks() called before initialisation "
                        "from %p\n", __builtin_return_address ( 0 ) );
                 return 0;
         }
 
         /* Use selected timer */
         return timer->currticks();
 }

References timer::currticks, and DBGC.

Referenced by ath5k_attach(), ath5k_poll(), ath_ani_calibrate(), ath_hw_pll_work(), ath_isr(), ath_set_channel(), ath_start_ani(), ath_tx_complete_poll_work(), ath_tx_start_dma(), control_dc_dc(), cs89x0_reset(), cs89x0_transmit(), davicom_media_chk(), davicom_reset(), davicom_transmit(), davicom_wait(), detect_tp(), dhcp_discovery_expired(), dhcp_discovery_rx(), dhcp_proxy_expired(), dhcp_pxebs_expired(), dhcp_set_state(), dhcpv6_tx(), epic100_transmit(), eth_rx_overrun(), getchar_timeout(), hermon_poll_eq(), hermon_set_port_type(), hunt_mcdi_request_poll(), hunt_poll(), monojob_wait(), neighbour_tx(), neighbour_tx_queue(), net80211_probe_start(), net80211_probe_step(), net80211_rx_frag(), net80211_step_associate(), null_now(), nv_mgmt_get_version(), peerblk_timestamp(), pxe_menu_prompt_and_select(), retry_poll(), send_test_pkt(), sis900_transmit(), sleep_interruptible(), smc9000_transmit(), start_dhcpv6(), start_timer_fixed(), stop_timer(), sundance_transmit(), t3c515_wait(), tcp_shutdown(), tcp_xmit_sack(), time_exec(), timer_expired(), tlan_transmit(), tulip_reset(), tulip_transmit(), tulip_wait(), w89c840_transmit(), wait_eeprom_ready(), and xenbus_backend_wait().

◆ udelay()

void udelay ( unsigned long usecs )

Delay for a fixed number of microseconds.

Parameters

usecs Number of microseconds for which to delay

Definition at line 61 of file timer.c.

                                     {
 
         /* Guard against use during early initialisation */
         if ( ! timer ) {
                 DBGC ( &timer, "TIMER udelay() called before initialisation "
                        "from %p\n", __builtin_return_address ( 0 ) );
                 return;
         }
 
         /* Use selected timer */
         timer->udelay ( usecs );
 }

References DBGC, and timer::udelay.

Referenced by __gm_phy_read(), __tg3_set_rx_mode(), __vxge_hw_device_register_poll(), __xm_phy_read(), _tw32_flush(), a3c90x_internal_WaitForEeprom(), amd8111e_read_phy(), ar5008_hw_init_bb(), ar5008_hw_process_ini(), ar5008_hw_rfbus_done(), ar9002_hw_configpcipowersave(), ar9002_olc_init(), ar9003_get_pll_sqsum_dvc(), ar9003_hw_init_bb(), ar9003_hw_init_cal(), ar9003_hw_internal_regulator_apply(), ar9003_hw_rfbus_done(), ar9271_hw_pa_cal(), ar9285_hw_pa_cal(), ath5k_hw_eeprom_read(), ath5k_hw_nic_reset(), ath5k_hw_nic_wakeup(), ath5k_hw_reset(), ath5k_hw_rf5110_calibrate(), ath5k_hw_stop_rx_dma(), ath5k_hw_stop_tx_dma(), ath5k_hw_wake(), ath9k_hw_abort_tx_dma(), ath9k_hw_analog_shift_regwrite(), ath9k_hw_analog_shift_rmw(), ath9k_hw_chip_test(), ath9k_hw_def_set_board_values(), ath9k_hw_init_pll(), ath9k_hw_loadnf(), ath9k_hw_reset(), ath9k_hw_set_power_awake(), ath9k_hw_set_reset(), ath9k_hw_set_reset_power_on(), ath9k_hw_set_reset_reg(), ath9k_hw_stopdmarecv(), ath9k_hw_wait(), atl1e_read_phy_reg(), atl1e_write_phy_reg(), atl2_hw_finish_ack_(), atl2_hw_reset(), atl_hw_read_mem(), b44_phy_reset(), b44_wait_bit(), bflush(), bnx2_init_chip(), bnx2_read_phy(), bnx2_reset_chip(), bnx2_reset_phy(), bnx2_setup_copper_phy(), bnx2_setup_serdes_phy(), bnx2_write_phy(), bnxt_er_task(), bnxt_rst_er_registers(), cgem_mii_wait(), deactivate_t509_device(), dm96xx_reset(), dmfe_disable(), dmfe_init_dm910x(), eepro_transmit(), eeprom_rdy(), eisa_device_enabled(), falcon_gmii_wait(), falcon_mdio_read(), falcon_mdio_write(), falcon_reset_xaui(), falcon_reset_xmac(), falcon_setup_nic(), falcon_spi_wait(), falcon_tenxpress_check_c11(), falcon_txc_logic_reset(), fiber_autoneg(), flexboot_nodnic_complete_all_tx(), forcedeth_open(), genesis_mac_init(), gm_phy_write(), hermon_cmd_wait(), hfa384x_docmd_wait(), hfa384x_prepare_bap(), hfa384x_wait_for_event(), hunt_mcdi_request_poll(), i2c_delay(), ifec_mdio_read(), ifec_mdio_write(), ifec_reset(), ifec_scb_cmd_wait(), intelxl_close(), intelxl_enable_ring(), intelxl_open(), is_pmu_set(), isapnp_delay(), jme_check_link(), jme_mdio_read(), jme_mdio_write(), jme_reset_mac_processor(), linda_ib_epb_request(), linda_ib_epb_wait(), linda_init_ib_serdes(), linda_link_state_check(), mdelay(), mentormac_init(), mentormac_reset(), mii_bit_xfer(), mii_rw(), mlx_utils_delay_in_us_priv(), myri10ge_command(), net80211_probe_step(), nii_delay(), nv_mac_reset(), nv_mgmt_acquire_sema(), nv_stop_rx(), nv_stop_tx(), nv_txrx_reset(), phy_read_1bit(), phy_write_1bit(), qib7322_ahb_wait(), qib7322_link_state_check(), rdc_mii_read(), rdc_mii_write(), read_srom_word(), realtek_mii_read(), realtek_mii_write(), reg_delay(), rhine_mii_autopoll(), rhine_mii_read(), rhine_mii_write(), rhine_reload_eeprom(), rhine_reset(), rtl818x_probe(), rtl818x_spi_write_bit(), rtl8225_read(), rtl8225_write(), sfe4001_init(), sis190_get_mac_addr_from_apc(), sis190_mii_probe_88e1111_fixup(), sis190_phy_task(), sis96x_get_mac_addr(), smc_read_phy_register(), smc_write_phy_register(), smsc95xx_reset(), spi_bit_delay(), spi_wait(), sundance_probe(), t509_enable(), t509_id_read_eeprom(), t509_poll(), t515_poll(), t595_disable(), t595_poll(), t595_reset(), t5x9_disable(), tg3_abort_hw(), tg3_bmcr_reset(), tg3_chip_reset(), tg3_clear_mac_status(), tg3_do_test_dma(), tg3_fiber_aneg_smachine(), tg3_get_invariants(), tg3_init_5401phy_dsp(), tg3_init_bcm8002(), tg3_issue_otp_command(), tg3_nvram_exec_cmd(), tg3_nvram_lock(), tg3_phy_reset(), tg3_poll_fw(), tg3_readphy(), tg3_reset_hw(), tg3_setup_copper_phy(), tg3_setup_fiber_by_hand(), tg3_setup_fiber_hw_autoneg(), tg3_setup_fiber_mii_phy(), tg3_setup_fiber_phy(), tg3_stop_block(), tg3_wait_for_event_ack(), tg3_writephy(), TLan_FinishReset(), TLan_PhyFinishAutoNeg(), tlan_probe(), TLan_ResetAdapter(), update_cr6(), usleep(), velocity_autopoll_start(), velocity_autopoll_stop(), velocity_mii_read(), velocity_mii_write(), velocity_reload_eeprom(), velocity_reset(), vxsetlink(), wait_resp(), and xm_phy_write().

◆ mdelay()

void mdelay ( unsigned long msecs )

Delay for a fixed number of milliseconds.

Parameters

msecs Number of milliseconds for which to delay

Definition at line 79 of file timer.c.

                                     {
 
         /* Guard against use during early initialisation */
         if ( ! timer ) {
                 DBGC ( &timer, "TIMER mdelay() called before initialisation "
                        "from %p\n", __builtin_return_address ( 0 ) );
                 return;
         }
 
         /* Delay for specified number of milliseconds */
         while ( msecs-- )
                 udelay ( 1000 );
 }

References DBGC, and udelay().

Referenced by __mdio_cmd(), _wgetc(), acpi_poweroff(), amd8111e_wait_tx_ring(), arbel_cmd_wait(), arbel_reset(), ath5k_hw_attach(), ath5k_hw_nic_wakeup(), ath5k_hw_noise_floor_calibration(), ath5k_hw_radio_revision(), ath5k_hw_reset(), ath5k_hw_rf5110_calibrate(), ath5k_hw_rf5110_channel(), atl1e_down(), atl1e_get_permanent_address(), atl1e_phy_commit(), atl1e_phy_init(), atl1e_reset_hw(), atl1e_setup_pcicmd(), atl_hw_read_mem(), atl_hw_reset(), atl_hw_reset_flb_(), atl_hw_reset_rbl_(), axge_probe(), bios_mp_ipi(), bnx2_fw_sync(), bnx2_probe(), bnx2_reset_chip(), bnx2_set_power_state_0(), bnx2_transmit(), bnxt_get_phy_link(), dmfe_init_dm910x(), dwmac_reset(), dwusb_probe(), efab_init_mac(), efi_usb_sync_transfer(), ehci_async_del(), ehci_legacy_claim(), ehci_periodic_del(), ehci_reset(), ehci_root_enable(), ehci_root_open(), ehci_stop(), ena_admin(), ena_reset_wait(), falcon_fini_resources(), falcon_init_sram(), falcon_init_xmac(), falcon_reset(), falcon_tenxpress_phy_init(), golan_cmd_wait(), gve_admin_wait(), gve_reset(), hermon_reset(), hermon_set_port_type(), hub_enable(), hub_open(), hunt_clear_udp_tunnel_ports(), hv_wait_for_message(), ice_dump_tx(), icplus_read_eeprom(), icplus_reset(), ifec_net_open(), igbvf_close(), igbvf_configure_tx(), intel_disable_ring(), intel_init_eeprom(), intel_read_eeprom(), intel_reset(), intelvf_mbox_msg(), intelvf_mbox_wait(), intelx_reset(), intelxl_admin_command(), intelxl_context_dump(), intelxl_context_line(), intelxl_disable_ring(), intelxlvf_admin_command(), intelxlvf_reset_wait(), intelxlvf_reset_wait_active(), intelxlvf_reset_wait_teardown(), jme_disable_rx_engine(), jme_disable_tx_engine(), jme_reload_eeprom(), lan78xx_reset(), linda_trim_ib(), mdio_clause45_reset_mmd(), mdio_clause45_wait_reset_mmds(), mii_reset(), mlx_utils_delay_in_ms_priv(), mp_max_cpuid(), myson_reload_config(), myson_soft_reset(), myson_wait_idle(), natsemi_reload_config(), natsemi_soft_reset(), netvsc_control(), ns16550_transmit(), nv_mgmt_acquire_sema(), nv_mgmt_get_version(), pci_reset(), pci_vpd_read_dword(), pci_vpd_write_dword(), phantom_clp_wait(), phantom_init_cmdpeg(), phantom_init_rcvpeg(), phantom_read_test_mem_block(), phantom_wait_for_cmd(), phy_init(), phy_reset(), qib7322_reset(), rdc_reset(), realtek_reset(), register_usb(), register_usb_hub(), rhine_open(), rndis_wait(), rtc_entropy_check(), rtl818x_init_hw(), rtl8225_rf_init(), rtl8225_rf_set_channel(), rtl8225_rf_set_tx_power(), rtl8225_rf_stop(), rtl8225x_rf_init(), rtl8225z2_rf_init(), rtl8225z2_rf_set_tx_power(), sfe4001_init(), short_hwrm_cmd_req(), sis190_phy_task(), sis190_read_eeprom(), smc_phy_configure(), smsc75xx_reset(), smscusb_eeprom_wait(), smscusb_mii_wait(), smscusb_otp_power_up(), smscusb_otp_wait(), snpnet_open(), t509_enable(), tg3_get_eeprom_hw_cfg(), tg3_nvram_read_using_eeprom(), tg3_poll_fw(), threewire_write(), TLan_FinishReset(), TLan_PhyFinishAutoNeg(), TLan_PhyPowerDown(), TLan_PhyPowerUp(), TLan_PhyReset(), TLan_PhyStartLink(), txnic_bgx_spu_init(), txnic_disable_cq(), txnic_disable_rq(), txnic_disable_sq(), ucode_update_all(), uhci_async_del(), uhci_periodic_del(), uhci_reset(), uhci_root_enable(), uhci_stop(), undinet_probe(), usb_control(), vpm_reset(), write_grf5101(), write_max2820(), write_sa2400(), xhci_abort(), xhci_command(), xhci_legacy_claim(), xhci_reset(), xhci_root_disable(), xhci_root_enable(), xhci_root_open(), and xhci_stop().

◆ sleep_interruptible()

static unsigned int sleep_interruptible	(	unsigned int	secs,
		int(*)(void)	interrupted
	)

static

Sleep (possibly interruptibly) for a fixed number of seconds.

Parameters

secs	Number of seconds for which to delay
interrupted	Interrupt checking method, or NULL

Return values

secs	Number of seconds remaining, if interrupted

Definition at line 100 of file timer.c.

                                                                            {
         unsigned long start = currticks();
         unsigned long now;
 
         for ( ; secs ; secs-- ) {
                 while ( ( ( now = currticks() ) - start ) < TICKS_PER_SEC ) {
                         step();
                         if ( interrupted && interrupted() )
                                 return secs;
                         cpu_nap();
                 }
                 start = now;
         }
 
         return 0;
 }

References cpu_nap(), currticks(), start, step(), and TICKS_PER_SEC.

Referenced by sleep(), and sleep_fixed().

◆ keypress_interrupted()

static int keypress_interrupted ( void )

static

Check if sleep has been interrupted by keypress.

Return values

interrupted Sleep has been interrupted

Definition at line 123 of file timer.c.

                                          {
 
         return ( iskey() && ( getchar() == CTRL_C ) );
 }

References CTRL_C, getchar(), and iskey().

Referenced by sleep().

◆ sleep()

unsigned int sleep ( unsigned int secs )

Sleep (interruptibly) for a fixed number of seconds.

Parameters

secs	Number of seconds for which to delay

Return values

secs	Number of seconds remaining, if interrupted

Definition at line 134 of file timer.c.

                                          {
 
         return sleep_interruptible ( secs, keypress_interrupted );
 }

References keypress_interrupted(), and sleep_interruptible().

Referenced by sleep_exec(), and valert().

◆ sleep_fixed()

void sleep_fixed ( unsigned int secs )

Sleep (uninterruptibly) for a fixed number of seconds.

Parameters

secs	Number of seconds for which to delay

Definition at line 144 of file timer.c.

                                        {
 
         sleep_interruptible ( secs, NULL );
 }

References NULL, and sleep_interruptible().

Referenced by sandev_command().

◆ timer_probe()

static void timer_probe ( void )

static

Find a working timer.

Definition at line 153 of file timer.c.

                                  {
         int rc;
 
         /* Use first working timer */
         for_each_table_entry ( timer, TIMERS ) {
                 if ( ( timer->probe == NULL ) ||
                      ( ( rc = timer->probe() ) == 0 ) ) {
                         DBGC ( &timer, "TIMER using %s\n", timer->name );
                         return;
                 }
                 DBGC ( &timer, "TIMER could not initialise %s: %s\n",
                        timer->name, strerror ( rc ) );
         }
 
         /* This is a fatal error */
         DBGC ( &timer, "TIMER found no working timers!\n" );
         while ( 1 ) {}
 }

References DBGC, for_each_table_entry, timer::name, NULL, timer::probe, rc, strerror(), and TIMERS.

◆ __init_fn()

struct init_fn timer_init_fn __init_fn ( INIT_EARLY )

Timer initialisation function.

◆ REQUIRING_SYMBOL()

REQUIRING_SYMBOL ( timer_init_fn )

◆ REQUIRE_OBJECT()

REQUIRE_OBJECT ( config_timer )

Variable Documentation

◆ timer

struct timer* timer

static

Current timer.

Definition at line 36 of file timer.c.

Referenced by _wgetc(), retry_poll(), and t515_probe().

Functions

Variables

Function Documentation

◆ FILE_LICENCE()

◆ FILE_SECBOOT()

◆ currticks()

◆ udelay()

◆ mdelay()

◆ sleep_interruptible()

◆ keypress_interrupted()

◆ sleep()

◆ sleep_fixed()

◆ timer_probe()

◆ __init_fn()

◆ REQUIRING_SYMBOL()

◆ REQUIRE_OBJECT()

Variable Documentation

◆ timer