/** \brief This function is the driver entry point for the init phase * of the PCI bus allocator. It will initialize all the needed parts * of NC_FPGA. * @param *dev Pointer to the used PCI device * @return void Nothing is given back */ static void nc_fpga_init(struct device *dev) { void *bar0_ptr = NULL; uint8_t cmd_reg; uint32_t cap = 0; /* All we need is mapped to BAR 0, get the address. */ bar0_ptr = (void *)(pci_read_config32(dev, PCI_BASE_ADDRESS_0) & ~PCI_BASE_ADDRESS_MEM_ATTR_MASK); cmd_reg = pci_read_config8(dev, PCI_COMMAND); /* Ensure BAR0 has a valid value. */ if (!bar0_ptr || !(cmd_reg & PCI_COMMAND_MEMORY)) return; /* Ensure this is really a NC FPGA by checking magic register. */ if (read32(bar0_ptr + NC_MAGIC_OFFSET) != NC_FPGA_MAGIC) return; /* Open hwinfo block. */ if (hwilib_find_blocks("hwinfo.hex") != CB_SUCCESS) return; /* Set up FAN controller and temperature monitor according to */ /* capability bits. */ cap = read32(bar0_ptr + NC_CAP1_OFFSET); if (cap & (NC_CAP1_TEMP_MON | NC_CAP1_FAN_CTRL)) init_temp_mon(bar0_ptr + NC_FANMON_CTRL_OFFSET); if (cap & NC_CAP1_FAN_CTRL) init_fan_ctrl(bar0_ptr + NC_FANMON_CTRL_OFFSET); }
static void wait_for_legacy_dev(void *unused) { uint32_t legacy_delay, us_since_boot; struct stopwatch sw; /* Open main hwinfo block. */ if (hwilib_find_blocks("hwinfo.hex") != CB_SUCCESS) return; /* Get legacy delay parameter from hwinfo. */ if (hwilib_get_field(LegacyDelay, (uint8_t *) &legacy_delay, sizeof(legacy_delay)) != sizeof(legacy_delay)) return; us_since_boot = get_us_since_boot(); /* No need to wait if the time since boot is already long enough.*/ if (us_since_boot > legacy_delay) return; stopwatch_init_msecs_expire(&sw, (legacy_delay - us_since_boot) / 1000); printk(BIOS_NOTICE, "Wait remaining %d of %d us for legacy devices...", legacy_delay - us_since_boot, legacy_delay); stopwatch_wait_until_expired(&sw); printk(BIOS_NOTICE, "done!\n"); }
/** \brief This functions sets up the DP2LVDS-converter to be used with the * appropriate lcd panel * @param *hwi_block Filename in CBFS of the block to use as HW-Info * @return 0 on success or error code */ int ptn3460_init(char *hwi_block) { struct ptn_3460_config cfg; int status; uint8_t disp_con = 0, color_depth = 0; uint8_t edid_data[0x80]; uint8_t hwid[4], tcu31_hwid[4] = {7, 9, 2, 0}; if (!hwi_block || hwilib_find_blocks(hwi_block) != CB_SUCCESS) { printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", hwi_block); return 1; } status = i2c_init(PTN_I2C_CONTROLER); if (status) return (PTN_BUS_ERROR | status); /* Get all needed information from hwinfo block */ if (hwilib_get_field(Edid, edid_data, 0x80) != sizeof(edid_data)) { printk(BIOS_ERR, "LCD: No EDID data available in %s\n", hwi_block); return 1; } if ((hwilib_get_field(PF_DisplCon, &disp_con, 1) != 1)) { printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); return 1; } if (hwilib_get_field(PF_Color_Depth ,&color_depth, 1) != 1) { printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); return 1; } if (hwilib_get_field(HWID, hwid, sizeof(hwid)) != sizeof(hwid)) { printk(BIOS_ERR, "LCD: Missing HW-ID from %s\n", hwi_block); return 1; } /* Here, all the desired information for setting up DP2LVDS converter*/ /* are present. Inside the converter, table 6 will be used for */ /* the timings. */ if ((status = ptn3460_write_edid(6, edid_data)) != 0) return status; /* Select this table to be emulated */ ptn_select_edid(6); /* Read PTN configuration data */ status = i2c_read(PTN_I2C_CONTROLER, PTN_SLAVE_ADR, PTN_CONFIG_OFF, (u8*)&cfg, PTN_CONFIG_LEN); if (status) return (PTN_BUS_ERROR | status); /* Set up configuration data according to the hwinfo blocks we get */ cfg.dp_interface_ctrl = 0; cfg.lvds_interface_ctrl1 = 0x00; if (disp_con == PF_DISPLCON_LVDS_DUAL) cfg.lvds_interface_ctrl1 |= 0x0b; /* Turn on dual LVDS lane and clock */ if (color_depth == PF_COLOR_DEPTH_6BIT) cfg.lvds_interface_ctrl1 |= 0x20; /* Use 18 bits per pixel */ cfg.lvds_interface_ctrl2 = 0x03; /* no clock spreading, 300 mV LVDS swing */ if (memcmp(hwid, tcu31_hwid, sizeof(hwid))) cfg.lvds_interface_ctrl3 = 0x00; /* no LVDS signal swap */ else cfg.lvds_interface_ctrl3 = 0x01; /* swap LVDS even and odd */ cfg.t2_delay = 1; /* Delay T2 (VDD to LVDS active) by 16 ms */ cfg.t3_timing = 10; /* 500 ms from LVDS to backlight active */ cfg.t12_timing = 20; /* 1 second re-power delay */ cfg.t4_timing = 3; /* 150 ms backlight off to LVDS inactive */ cfg.t5_delay = 1; /* Delay T5 (LVDS to VDD inactive) by 16 ms */ cfg.backlight_ctrl = 0; /* Enable backlight control */ /* Write back configuration data to PTN3460 */ status = i2c_write(PTN_I2C_CONTROLER, PTN_SLAVE_ADR, PTN_CONFIG_OFF, (u8*)&cfg, PTN_CONFIG_LEN); if (status) return (PTN_BUS_ERROR | status); else return PTN_NO_ERROR; }