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Annotation of qemu/hw/hpet_emul.h, revision 1.1.1.4

1.1       root        1: /*
                      2:  * QEMU Emulated HPET support
                      3:  *
                      4:  * Copyright IBM, Corp. 2008
                      5:  *
                      6:  * Authors:
                      7:  *  Beth Kon   <[email protected]>
                      8:  *
                      9:  * This work is licensed under the terms of the GNU GPL, version 2.  See
                     10:  * the COPYING file in the top-level directory.
                     11:  *
                     12:  */
                     13: #ifndef QEMU_HPET_EMUL_H
                     14: #define QEMU_HPET_EMUL_H
                     15: 
                     16: #define HPET_BASE               0xfed00000
                     17: #define HPET_CLK_PERIOD         10000000ULL /* 10000000 femtoseconds == 10ns*/
                     18: 
                     19: #define FS_PER_NS 1000000
1.1.1.4 ! root       20: #define HPET_MIN_TIMERS         3
        !            21: #define HPET_MAX_TIMERS         32
        !            22: 
        !            23: #define HPET_NUM_IRQ_ROUTES     32
1.1       root       24: 
                     25: #define HPET_CFG_ENABLE 0x001
                     26: #define HPET_CFG_LEGACY 0x002
                     27: 
                     28: #define HPET_ID         0x000
                     29: #define HPET_PERIOD     0x004
                     30: #define HPET_CFG        0x010
                     31: #define HPET_STATUS     0x020
                     32: #define HPET_COUNTER    0x0f0
                     33: #define HPET_TN_CFG     0x000
                     34: #define HPET_TN_CMP     0x008
                     35: #define HPET_TN_ROUTE   0x010
                     36: #define HPET_CFG_WRITE_MASK  0x3
                     37: 
1.1.1.4 ! root       38: #define HPET_ID_NUM_TIM_SHIFT   8
        !            39: #define HPET_ID_NUM_TIM_MASK    0x1f00
1.1       root       40: 
1.1.1.4 ! root       41: #define HPET_TN_TYPE_LEVEL       0x002
1.1       root       42: #define HPET_TN_ENABLE           0x004
                     43: #define HPET_TN_PERIODIC         0x008
                     44: #define HPET_TN_PERIODIC_CAP     0x010
                     45: #define HPET_TN_SIZE_CAP         0x020
                     46: #define HPET_TN_SETVAL           0x040
                     47: #define HPET_TN_32BIT            0x100
                     48: #define HPET_TN_INT_ROUTE_MASK  0x3e00
1.1.1.4 ! root       49: #define HPET_TN_FSB_ENABLE      0x4000
        !            50: #define HPET_TN_FSB_CAP         0x8000
        !            51: #define HPET_TN_CFG_WRITE_MASK  0x7f4e
1.1       root       52: #define HPET_TN_INT_ROUTE_SHIFT      9
                     53: #define HPET_TN_INT_ROUTE_CAP_SHIFT 32
                     54: #define HPET_TN_CFG_BITS_READONLY_OR_RESERVED 0xffff80b1U
                     55: 
1.1.1.4 ! root       56: struct hpet_fw_entry
        !            57: {
        !            58:     uint32_t event_timer_block_id;
        !            59:     uint64_t address;
        !            60:     uint16_t min_tick;
        !            61:     uint8_t page_prot;
        !            62: } __attribute__ ((packed));
        !            63: 
        !            64: struct hpet_fw_config
        !            65: {
        !            66:     uint8_t count;
        !            67:     struct hpet_fw_entry hpet[8];
        !            68: } __attribute__ ((packed));
1.1       root       69: 
1.1.1.4 ! root       70: extern struct hpet_fw_config hpet_cfg;
1.1       root       71: #endif

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