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/*
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* QEMU PowerMac CUDA device support
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*
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* Copyright (c) 2004-2007 Fabrice Bellard
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* Copyright (c) 2007 Jocelyn Mayer
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw.h" |
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#include "ppc_mac.h" |
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#include "qemu-timer.h" |
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#include "sysemu.h" |
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|
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/* XXX: implement all timer modes */
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/* debug CUDA */
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//#define DEBUG_CUDA
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/* debug CUDA packets */
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//#define DEBUG_CUDA_PACKET
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#ifdef DEBUG_CUDA
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#define CUDA_DPRINTF(fmt, args...) \
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do { printf("CUDA: " fmt , ##args); } while (0) |
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#else
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#define CUDA_DPRINTF(fmt, args...)
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#endif
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|
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/* Bits in B data register: all active low */
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#define TREQ 0x08 /* Transfer request (input) */ |
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#define TACK 0x10 /* Transfer acknowledge (output) */ |
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#define TIP 0x20 /* Transfer in progress (output) */ |
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|
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/* Bits in ACR */
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#define SR_CTRL 0x1c /* Shift register control bits */ |
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#define SR_EXT 0x0c /* Shift on external clock */ |
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#define SR_OUT 0x10 /* Shift out if 1 */ |
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|
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/* Bits in IFR and IER */
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#define IER_SET 0x80 /* set bits in IER */ |
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#define IER_CLR 0 /* clear bits in IER */ |
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#define SR_INT 0x04 /* Shift register full/empty */ |
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#define T1_INT 0x40 /* Timer 1 interrupt */ |
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#define T2_INT 0x20 /* Timer 2 interrupt */ |
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|
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/* Bits in ACR */
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#define T1MODE 0xc0 /* Timer 1 mode */ |
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#define T1MODE_CONT 0x40 /* continuous interrupts */ |
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|
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/* commands (1st byte) */
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#define ADB_PACKET 0 |
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#define CUDA_PACKET 1 |
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#define ERROR_PACKET 2 |
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#define TIMER_PACKET 3 |
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#define POWER_PACKET 4 |
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#define MACIIC_PACKET 5 |
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#define PMU_PACKET 6 |
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|
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/* CUDA commands (2nd byte) */
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#define CUDA_WARM_START 0x0 |
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#define CUDA_AUTOPOLL 0x1 |
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#define CUDA_GET_6805_ADDR 0x2 |
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#define CUDA_GET_TIME 0x3 |
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#define CUDA_GET_PRAM 0x7 |
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#define CUDA_SET_6805_ADDR 0x8 |
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#define CUDA_SET_TIME 0x9 |
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#define CUDA_POWERDOWN 0xa |
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#define CUDA_POWERUP_TIME 0xb |
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#define CUDA_SET_PRAM 0xc |
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#define CUDA_MS_RESET 0xd |
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#define CUDA_SEND_DFAC 0xe |
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#define CUDA_BATTERY_SWAP_SENSE 0x10 |
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#define CUDA_RESET_SYSTEM 0x11 |
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#define CUDA_SET_IPL 0x12 |
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#define CUDA_FILE_SERVER_FLAG 0x13 |
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#define CUDA_SET_AUTO_RATE 0x14 |
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#define CUDA_GET_AUTO_RATE 0x16 |
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#define CUDA_SET_DEVICE_LIST 0x19 |
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#define CUDA_GET_DEVICE_LIST 0x1a |
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#define CUDA_SET_ONE_SECOND_MODE 0x1b |
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#define CUDA_SET_POWER_MESSAGES 0x21 |
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#define CUDA_GET_SET_IIC 0x22 |
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#define CUDA_WAKEUP 0x23 |
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#define CUDA_TIMER_TICKLE 0x24 |
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#define CUDA_COMBINED_FORMAT_IIC 0x25 |
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#define CUDA_TIMER_FREQ (4700000 / 6) |
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#define CUDA_ADB_POLL_FREQ 50 |
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/* CUDA returns time_t's offset from Jan 1, 1904, not 1970 */
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#define RTC_OFFSET 2082844800 |
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typedef struct CUDATimer { |
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int index;
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uint16_t latch; |
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uint16_t counter_value; /* counter value at load time */
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int64_t load_time; |
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int64_t next_irq_time; |
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QEMUTimer *timer; |
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} CUDATimer; |
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typedef struct CUDAState { |
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/* cuda registers */
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uint8_t b; /* B-side data */
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uint8_t a; /* A-side data */
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uint8_t dirb; /* B-side direction (1=output) */
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uint8_t dira; /* A-side direction (1=output) */
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uint8_t sr; /* Shift register */
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uint8_t acr; /* Auxiliary control register */
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uint8_t pcr; /* Peripheral control register */
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uint8_t ifr; /* Interrupt flag register */
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uint8_t ier; /* Interrupt enable register */
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uint8_t anh; /* A-side data, no handshake */
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CUDATimer timers[2];
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uint32_t tick_offset; |
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uint8_t last_b; /* last value of B register */
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uint8_t last_acr; /* last value of B register */
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int data_in_size;
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int data_in_index;
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int data_out_index;
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qemu_irq irq; |
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uint8_t autopoll; |
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uint8_t data_in[128];
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uint8_t data_out[16];
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QEMUTimer *adb_poll_timer; |
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} CUDAState; |
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static CUDAState cuda_state;
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ADBBusState adb_bus; |
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static void cuda_update(CUDAState *s); |
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static void cuda_receive_packet_from_host(CUDAState *s, |
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const uint8_t *data, int len); |
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static void cuda_timer_update(CUDAState *s, CUDATimer *ti, |
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int64_t current_time); |
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static void cuda_update_irq(CUDAState *s) |
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{ |
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if (s->ifr & s->ier & (SR_INT | T1_INT)) {
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qemu_irq_raise(s->irq); |
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} else {
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qemu_irq_lower(s->irq); |
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} |
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} |
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static unsigned int get_counter(CUDATimer *s) |
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{ |
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int64_t d; |
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unsigned int counter; |
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d = muldiv64(qemu_get_clock(vm_clock) - s->load_time, |
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CUDA_TIMER_FREQ, ticks_per_sec); |
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if (s->index == 0) { |
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/* the timer goes down from latch to -1 (period of latch + 2) */
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if (d <= (s->counter_value + 1)) { |
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counter = (s->counter_value - d) & 0xffff;
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} else {
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counter = (d - (s->counter_value + 1)) % (s->latch + 2); |
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counter = (s->latch - counter) & 0xffff;
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} |
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} else {
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counter = (s->counter_value - d) & 0xffff;
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} |
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return counter;
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} |
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static void set_counter(CUDAState *s, CUDATimer *ti, unsigned int val) |
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{ |
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CUDA_DPRINTF("T%d.counter=%d\n", 1 + (ti->timer == NULL), val); |
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ti->load_time = qemu_get_clock(vm_clock); |
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ti->counter_value = val; |
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cuda_timer_update(s, ti, ti->load_time); |
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} |
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static int64_t get_next_irq_time(CUDATimer *s, int64_t current_time)
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{ |
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int64_t d, next_time; |
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unsigned int counter; |
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/* current counter value */
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d = muldiv64(current_time - s->load_time, |
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CUDA_TIMER_FREQ, ticks_per_sec); |
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/* the timer goes down from latch to -1 (period of latch + 2) */
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if (d <= (s->counter_value + 1)) { |
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counter = (s->counter_value - d) & 0xffff;
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} else {
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counter = (d - (s->counter_value + 1)) % (s->latch + 2); |
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counter = (s->latch - counter) & 0xffff;
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} |
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/* Note: we consider the irq is raised on 0 */
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if (counter == 0xffff) { |
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next_time = d + s->latch + 1;
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} else if (counter == 0) { |
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next_time = d + s->latch + 2;
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} else {
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next_time = d + counter; |
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} |
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CUDA_DPRINTF("latch=%d counter=%" PRId64 " delta_next=%" PRId64 "\n", |
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s->latch, d, next_time - d); |
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next_time = muldiv64(next_time, ticks_per_sec, CUDA_TIMER_FREQ) + |
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s->load_time; |
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if (next_time <= current_time)
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next_time = current_time + 1;
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return next_time;
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} |
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static void cuda_timer_update(CUDAState *s, CUDATimer *ti, |
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int64_t current_time) |
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{ |
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if (!ti->timer)
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return;
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if ((s->acr & T1MODE) != T1MODE_CONT) {
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qemu_del_timer(ti->timer); |
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} else {
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ti->next_irq_time = get_next_irq_time(ti, current_time); |
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qemu_mod_timer(ti->timer, ti->next_irq_time); |
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} |
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} |
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static void cuda_timer1(void *opaque) |
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{ |
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CUDAState *s = opaque; |
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CUDATimer *ti = &s->timers[0];
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cuda_timer_update(s, ti, ti->next_irq_time); |
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s->ifr |= T1_INT; |
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cuda_update_irq(s); |
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} |
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static uint32_t cuda_readb(void *opaque, target_phys_addr_t addr) |
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{ |
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CUDAState *s = opaque; |
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uint32_t val; |
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addr = (addr >> 9) & 0xf; |
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switch(addr) {
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case 0: |
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val = s->b; |
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break;
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case 1: |
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val = s->a; |
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break;
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case 2: |
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val = s->dirb; |
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break;
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case 3: |
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val = s->dira; |
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break;
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case 4: |
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val = get_counter(&s->timers[0]) & 0xff; |
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s->ifr &= ~T1_INT; |
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cuda_update_irq(s); |
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break;
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case 5: |
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val = get_counter(&s->timers[0]) >> 8; |
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cuda_update_irq(s); |
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break;
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case 6: |
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val = s->timers[0].latch & 0xff; |
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break;
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case 7: |
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/* XXX: check this */
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val = (s->timers[0].latch >> 8) & 0xff; |
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break;
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case 8: |
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val = get_counter(&s->timers[1]) & 0xff; |
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s->ifr &= ~T2_INT; |
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break;
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case 9: |
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val = get_counter(&s->timers[1]) >> 8; |
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break;
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case 10: |
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val = s->sr; |
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s->ifr &= ~SR_INT; |
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cuda_update_irq(s); |
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break;
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case 11: |
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val = s->acr; |
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break;
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case 12: |
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val = s->pcr; |
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break;
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case 13: |
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val = s->ifr; |
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if (s->ifr & s->ier)
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val |= 0x80;
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break;
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case 14: |
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val = s->ier | 0x80;
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break;
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default:
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case 15: |
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val = s->anh; |
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break;
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} |
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if (addr != 13 || val != 0) |
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CUDA_DPRINTF("read: reg=0x%x val=%02x\n", (int)addr, val); |
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return val;
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} |
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|
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static void cuda_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
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{ |
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CUDAState *s = opaque; |
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addr = (addr >> 9) & 0xf; |
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CUDA_DPRINTF("write: reg=0x%x val=%02x\n", (int)addr, val); |
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switch(addr) {
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case 0: |
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s->b = val; |
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cuda_update(s); |
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break;
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case 1: |
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s->a = val; |
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break;
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case 2: |
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s->dirb = val; |
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break;
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case 3: |
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s->dira = val; |
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break;
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case 4: |
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s->timers[0].latch = (s->timers[0].latch & 0xff00) | val; |
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cuda_timer_update(s, &s->timers[0], qemu_get_clock(vm_clock));
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break;
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case 5: |
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s->timers[0].latch = (s->timers[0].latch & 0xff) | (val << 8); |
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s->ifr &= ~T1_INT; |
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set_counter(s, &s->timers[0], s->timers[0].latch); |
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break;
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case 6: |
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s->timers[0].latch = (s->timers[0].latch & 0xff00) | val; |
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cuda_timer_update(s, &s->timers[0], qemu_get_clock(vm_clock));
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break;
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case 7: |
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s->timers[0].latch = (s->timers[0].latch & 0xff) | (val << 8); |
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s->ifr &= ~T1_INT; |
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cuda_timer_update(s, &s->timers[0], qemu_get_clock(vm_clock));
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break;
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case 8: |
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s->timers[1].latch = val;
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set_counter(s, &s->timers[1], val);
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break;
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case 9: |
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set_counter(s, &s->timers[1], (val << 8) | s->timers[1].latch); |
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break;
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case 10: |
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s->sr = val; |
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break;
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case 11: |
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s->acr = val; |
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cuda_timer_update(s, &s->timers[0], qemu_get_clock(vm_clock));
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cuda_update(s); |
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break;
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case 12: |
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s->pcr = val; |
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break;
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case 13: |
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/* reset bits */
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s->ifr &= ~val; |
384 |
cuda_update_irq(s); |
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break;
|
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case 14: |
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if (val & IER_SET) {
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/* set bits */
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s->ier |= val & 0x7f;
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} else {
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/* reset bits */
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s->ier &= ~val; |
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} |
394 |
cuda_update_irq(s); |
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break;
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default:
|
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case 15: |
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s->anh = val; |
399 |
break;
|
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} |
401 |
} |
402 |
|
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/* NOTE: TIP and TREQ are negated */
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static void cuda_update(CUDAState *s) |
405 |
{ |
406 |
int packet_received, len;
|
407 |
|
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packet_received = 0;
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if (!(s->b & TIP)) {
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/* transfer requested from host */
|
411 |
|
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if (s->acr & SR_OUT) {
|
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/* data output */
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if ((s->b & (TACK | TIP)) != (s->last_b & (TACK | TIP))) {
|
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if (s->data_out_index < sizeof(s->data_out)) { |
416 |
CUDA_DPRINTF("send: %02x\n", s->sr);
|
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s->data_out[s->data_out_index++] = s->sr; |
418 |
s->ifr |= SR_INT; |
419 |
cuda_update_irq(s); |
420 |
} |
421 |
} |
422 |
} else {
|
423 |
if (s->data_in_index < s->data_in_size) {
|
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/* data input */
|
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if ((s->b & (TACK | TIP)) != (s->last_b & (TACK | TIP))) {
|
426 |
s->sr = s->data_in[s->data_in_index++]; |
427 |
CUDA_DPRINTF("recv: %02x\n", s->sr);
|
428 |
/* indicate end of transfer */
|
429 |
if (s->data_in_index >= s->data_in_size) {
|
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s->b = (s->b | TREQ); |
431 |
} |
432 |
s->ifr |= SR_INT; |
433 |
cuda_update_irq(s); |
434 |
} |
435 |
} |
436 |
} |
437 |
} else {
|
438 |
/* no transfer requested: handle sync case */
|
439 |
if ((s->last_b & TIP) && (s->b & TACK) != (s->last_b & TACK)) {
|
440 |
/* update TREQ state each time TACK change state */
|
441 |
if (s->b & TACK)
|
442 |
s->b = (s->b | TREQ); |
443 |
else
|
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s->b = (s->b & ~TREQ); |
445 |
s->ifr |= SR_INT; |
446 |
cuda_update_irq(s); |
447 |
} else {
|
448 |
if (!(s->last_b & TIP)) {
|
449 |
/* handle end of host to cuda transfer */
|
450 |
packet_received = (s->data_out_index > 0);
|
451 |
/* always an IRQ at the end of transfer */
|
452 |
s->ifr |= SR_INT; |
453 |
cuda_update_irq(s); |
454 |
} |
455 |
/* signal if there is data to read */
|
456 |
if (s->data_in_index < s->data_in_size) {
|
457 |
s->b = (s->b & ~TREQ); |
458 |
} |
459 |
} |
460 |
} |
461 |
|
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s->last_acr = s->acr; |
463 |
s->last_b = s->b; |
464 |
|
465 |
/* NOTE: cuda_receive_packet_from_host() can call cuda_update()
|
466 |
recursively */
|
467 |
if (packet_received) {
|
468 |
len = s->data_out_index; |
469 |
s->data_out_index = 0;
|
470 |
cuda_receive_packet_from_host(s, s->data_out, len); |
471 |
} |
472 |
} |
473 |
|
474 |
static void cuda_send_packet_to_host(CUDAState *s, |
475 |
const uint8_t *data, int len) |
476 |
{ |
477 |
#ifdef DEBUG_CUDA_PACKET
|
478 |
{ |
479 |
int i;
|
480 |
printf("cuda_send_packet_to_host:\n");
|
481 |
for(i = 0; i < len; i++) |
482 |
printf(" %02x", data[i]);
|
483 |
printf("\n");
|
484 |
} |
485 |
#endif
|
486 |
memcpy(s->data_in, data, len); |
487 |
s->data_in_size = len; |
488 |
s->data_in_index = 0;
|
489 |
cuda_update(s); |
490 |
s->ifr |= SR_INT; |
491 |
cuda_update_irq(s); |
492 |
} |
493 |
|
494 |
static void cuda_adb_poll(void *opaque) |
495 |
{ |
496 |
CUDAState *s = opaque; |
497 |
uint8_t obuf[ADB_MAX_OUT_LEN + 2];
|
498 |
int olen;
|
499 |
|
500 |
olen = adb_poll(&adb_bus, obuf + 2);
|
501 |
if (olen > 0) { |
502 |
obuf[0] = ADB_PACKET;
|
503 |
obuf[1] = 0x40; /* polled data */ |
504 |
cuda_send_packet_to_host(s, obuf, olen + 2);
|
505 |
} |
506 |
qemu_mod_timer(s->adb_poll_timer, |
507 |
qemu_get_clock(vm_clock) + |
508 |
(ticks_per_sec / CUDA_ADB_POLL_FREQ)); |
509 |
} |
510 |
|
511 |
static void cuda_receive_packet(CUDAState *s, |
512 |
const uint8_t *data, int len) |
513 |
{ |
514 |
uint8_t obuf[16];
|
515 |
int autopoll;
|
516 |
uint32_t ti; |
517 |
|
518 |
switch(data[0]) { |
519 |
case CUDA_AUTOPOLL:
|
520 |
autopoll = (data[1] != 0); |
521 |
if (autopoll != s->autopoll) {
|
522 |
s->autopoll = autopoll; |
523 |
if (autopoll) {
|
524 |
qemu_mod_timer(s->adb_poll_timer, |
525 |
qemu_get_clock(vm_clock) + |
526 |
(ticks_per_sec / CUDA_ADB_POLL_FREQ)); |
527 |
} else {
|
528 |
qemu_del_timer(s->adb_poll_timer); |
529 |
} |
530 |
} |
531 |
obuf[0] = CUDA_PACKET;
|
532 |
obuf[1] = data[1]; |
533 |
cuda_send_packet_to_host(s, obuf, 2);
|
534 |
break;
|
535 |
case CUDA_SET_TIME:
|
536 |
ti = (((uint32_t)data[1]) << 24) + (((uint32_t)data[2]) << 16) + (((uint32_t)data[3]) << 8) + data[4]; |
537 |
s->tick_offset = ti - (qemu_get_clock(vm_clock) / ticks_per_sec); |
538 |
obuf[0] = CUDA_PACKET;
|
539 |
obuf[1] = 0; |
540 |
obuf[2] = 0; |
541 |
cuda_send_packet_to_host(s, obuf, 3);
|
542 |
break;
|
543 |
case CUDA_GET_TIME:
|
544 |
ti = s->tick_offset + (qemu_get_clock(vm_clock) / ticks_per_sec); |
545 |
obuf[0] = CUDA_PACKET;
|
546 |
obuf[1] = 0; |
547 |
obuf[2] = 0; |
548 |
obuf[3] = ti >> 24; |
549 |
obuf[4] = ti >> 16; |
550 |
obuf[5] = ti >> 8; |
551 |
obuf[6] = ti;
|
552 |
cuda_send_packet_to_host(s, obuf, 7);
|
553 |
break;
|
554 |
case CUDA_FILE_SERVER_FLAG:
|
555 |
case CUDA_SET_DEVICE_LIST:
|
556 |
case CUDA_SET_AUTO_RATE:
|
557 |
case CUDA_SET_POWER_MESSAGES:
|
558 |
obuf[0] = CUDA_PACKET;
|
559 |
obuf[1] = 0; |
560 |
cuda_send_packet_to_host(s, obuf, 2);
|
561 |
break;
|
562 |
case CUDA_POWERDOWN:
|
563 |
obuf[0] = CUDA_PACKET;
|
564 |
obuf[1] = 0; |
565 |
cuda_send_packet_to_host(s, obuf, 2);
|
566 |
qemu_system_shutdown_request(); |
567 |
break;
|
568 |
case CUDA_RESET_SYSTEM:
|
569 |
obuf[0] = CUDA_PACKET;
|
570 |
obuf[1] = 0; |
571 |
cuda_send_packet_to_host(s, obuf, 2);
|
572 |
qemu_system_reset_request(); |
573 |
break;
|
574 |
default:
|
575 |
break;
|
576 |
} |
577 |
} |
578 |
|
579 |
static void cuda_receive_packet_from_host(CUDAState *s, |
580 |
const uint8_t *data, int len) |
581 |
{ |
582 |
#ifdef DEBUG_CUDA_PACKET
|
583 |
{ |
584 |
int i;
|
585 |
printf("cuda_receive_packet_from_host:\n");
|
586 |
for(i = 0; i < len; i++) |
587 |
printf(" %02x", data[i]);
|
588 |
printf("\n");
|
589 |
} |
590 |
#endif
|
591 |
switch(data[0]) { |
592 |
case ADB_PACKET:
|
593 |
{ |
594 |
uint8_t obuf[ADB_MAX_OUT_LEN + 2];
|
595 |
int olen;
|
596 |
olen = adb_request(&adb_bus, obuf + 2, data + 1, len - 1); |
597 |
if (olen > 0) { |
598 |
obuf[0] = ADB_PACKET;
|
599 |
obuf[1] = 0x00; |
600 |
} else {
|
601 |
/* error */
|
602 |
obuf[0] = ADB_PACKET;
|
603 |
obuf[1] = -olen;
|
604 |
olen = 0;
|
605 |
} |
606 |
cuda_send_packet_to_host(s, obuf, olen + 2);
|
607 |
} |
608 |
break;
|
609 |
case CUDA_PACKET:
|
610 |
cuda_receive_packet(s, data + 1, len - 1); |
611 |
break;
|
612 |
} |
613 |
} |
614 |
|
615 |
static void cuda_writew (void *opaque, target_phys_addr_t addr, uint32_t value) |
616 |
{ |
617 |
} |
618 |
|
619 |
static void cuda_writel (void *opaque, target_phys_addr_t addr, uint32_t value) |
620 |
{ |
621 |
} |
622 |
|
623 |
static uint32_t cuda_readw (void *opaque, target_phys_addr_t addr) |
624 |
{ |
625 |
return 0; |
626 |
} |
627 |
|
628 |
static uint32_t cuda_readl (void *opaque, target_phys_addr_t addr) |
629 |
{ |
630 |
return 0; |
631 |
} |
632 |
|
633 |
static CPUWriteMemoryFunc *cuda_write[] = {
|
634 |
&cuda_writeb, |
635 |
&cuda_writew, |
636 |
&cuda_writel, |
637 |
}; |
638 |
|
639 |
static CPUReadMemoryFunc *cuda_read[] = {
|
640 |
&cuda_readb, |
641 |
&cuda_readw, |
642 |
&cuda_readl, |
643 |
}; |
644 |
|
645 |
static void cuda_save_timer(QEMUFile *f, CUDATimer *s) |
646 |
{ |
647 |
qemu_put_be16s(f, &s->latch); |
648 |
qemu_put_be16s(f, &s->counter_value); |
649 |
qemu_put_sbe64s(f, &s->load_time); |
650 |
qemu_put_sbe64s(f, &s->next_irq_time); |
651 |
if (s->timer)
|
652 |
qemu_put_timer(f, s->timer); |
653 |
} |
654 |
|
655 |
static void cuda_save(QEMUFile *f, void *opaque) |
656 |
{ |
657 |
CUDAState *s = (CUDAState *)opaque; |
658 |
|
659 |
qemu_put_ubyte(f, s->b); |
660 |
qemu_put_ubyte(f, s->a); |
661 |
qemu_put_ubyte(f, s->dirb); |
662 |
qemu_put_ubyte(f, s->dira); |
663 |
qemu_put_ubyte(f, s->sr); |
664 |
qemu_put_ubyte(f, s->acr); |
665 |
qemu_put_ubyte(f, s->pcr); |
666 |
qemu_put_ubyte(f, s->ifr); |
667 |
qemu_put_ubyte(f, s->ier); |
668 |
qemu_put_ubyte(f, s->anh); |
669 |
qemu_put_sbe32s(f, &s->data_in_size); |
670 |
qemu_put_sbe32s(f, &s->data_in_index); |
671 |
qemu_put_sbe32s(f, &s->data_out_index); |
672 |
qemu_put_ubyte(f, s->autopoll); |
673 |
qemu_put_buffer(f, s->data_in, sizeof(s->data_in));
|
674 |
qemu_put_buffer(f, s->data_out, sizeof(s->data_out));
|
675 |
qemu_put_be32s(f, &s->tick_offset); |
676 |
cuda_save_timer(f, &s->timers[0]);
|
677 |
cuda_save_timer(f, &s->timers[1]);
|
678 |
} |
679 |
|
680 |
static void cuda_load_timer(QEMUFile *f, CUDATimer *s) |
681 |
{ |
682 |
qemu_get_be16s(f, &s->latch); |
683 |
qemu_get_be16s(f, &s->counter_value); |
684 |
qemu_get_sbe64s(f, &s->load_time); |
685 |
qemu_get_sbe64s(f, &s->next_irq_time); |
686 |
if (s->timer)
|
687 |
qemu_get_timer(f, s->timer); |
688 |
} |
689 |
|
690 |
static int cuda_load(QEMUFile *f, void *opaque, int version_id) |
691 |
{ |
692 |
CUDAState *s = (CUDAState *)opaque; |
693 |
|
694 |
if (version_id != 1) |
695 |
return -EINVAL;
|
696 |
|
697 |
s->b = qemu_get_ubyte(f); |
698 |
s->a = qemu_get_ubyte(f); |
699 |
s->dirb = qemu_get_ubyte(f); |
700 |
s->dira = qemu_get_ubyte(f); |
701 |
s->sr = qemu_get_ubyte(f); |
702 |
s->acr = qemu_get_ubyte(f); |
703 |
s->pcr = qemu_get_ubyte(f); |
704 |
s->ifr = qemu_get_ubyte(f); |
705 |
s->ier = qemu_get_ubyte(f); |
706 |
s->anh = qemu_get_ubyte(f); |
707 |
qemu_get_sbe32s(f, &s->data_in_size); |
708 |
qemu_get_sbe32s(f, &s->data_in_index); |
709 |
qemu_get_sbe32s(f, &s->data_out_index); |
710 |
s->autopoll = qemu_get_ubyte(f); |
711 |
qemu_get_buffer(f, s->data_in, sizeof(s->data_in));
|
712 |
qemu_get_buffer(f, s->data_out, sizeof(s->data_out));
|
713 |
qemu_get_be32s(f, &s->tick_offset); |
714 |
cuda_load_timer(f, &s->timers[0]);
|
715 |
cuda_load_timer(f, &s->timers[1]);
|
716 |
|
717 |
return 0; |
718 |
} |
719 |
|
720 |
static void cuda_reset(void *opaque) |
721 |
{ |
722 |
CUDAState *s = opaque; |
723 |
|
724 |
s->b = 0;
|
725 |
s->a = 0;
|
726 |
s->dirb = 0;
|
727 |
s->dira = 0;
|
728 |
s->sr = 0;
|
729 |
s->acr = 0;
|
730 |
s->pcr = 0;
|
731 |
s->ifr = 0;
|
732 |
s->ier = 0;
|
733 |
// s->ier = T1_INT | SR_INT;
|
734 |
s->anh = 0;
|
735 |
s->data_in_size = 0;
|
736 |
s->data_in_index = 0;
|
737 |
s->data_out_index = 0;
|
738 |
s->autopoll = 0;
|
739 |
|
740 |
s->timers[0].latch = 0xffff; |
741 |
set_counter(s, &s->timers[0], 0xffff); |
742 |
|
743 |
s->timers[1].latch = 0; |
744 |
set_counter(s, &s->timers[1], 0xffff); |
745 |
} |
746 |
|
747 |
void cuda_init (int *cuda_mem_index, qemu_irq irq) |
748 |
{ |
749 |
struct tm tm;
|
750 |
CUDAState *s = &cuda_state; |
751 |
|
752 |
s->irq = irq; |
753 |
|
754 |
s->timers[0].index = 0; |
755 |
s->timers[0].timer = qemu_new_timer(vm_clock, cuda_timer1, s);
|
756 |
|
757 |
s->timers[1].index = 1; |
758 |
|
759 |
qemu_get_timedate(&tm, 0);
|
760 |
s->tick_offset = (uint32_t)mktimegm(&tm) + RTC_OFFSET; |
761 |
|
762 |
s->adb_poll_timer = qemu_new_timer(vm_clock, cuda_adb_poll, s); |
763 |
*cuda_mem_index = cpu_register_io_memory(0, cuda_read, cuda_write, s);
|
764 |
register_savevm("cuda", -1, 1, cuda_save, cuda_load, s); |
765 |
qemu_register_reset(cuda_reset, s); |
766 |
cuda_reset(s); |
767 |
} |