From 6963b2c0545121b57d05bc3b3694c48e8ea4c1ad Mon Sep 17 00:00:00 2001 From: Mark Cave-Ayland Date: Sun, 22 Dec 2024 13:00:10 +0000 Subject: [PATCH] next-cube: move next_rtc_cmd_is_write() and next_rtc_data_in_irq() functions Move these functions in next-cube.c so that they are with the rest of the next-rtc functions. Signed-off-by: Mark Cave-Ayland Reviewed-by: Thomas Huth Message-ID: <20241222130012.1013374-32-mark.cave-ayland@ilande.co.uk> Signed-off-by: Thomas Huth --- hw/m68k/next-cube.c | 172 ++++++++++++++++++++++---------------------- 1 file changed, 86 insertions(+), 86 deletions(-) diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c index 9f40640b5d..360a46c32e 100644 --- a/hw/m68k/next-cube.c +++ b/hw/m68k/next-cube.c @@ -175,92 +175,6 @@ static void next_scr2_led_update(NeXTPC *s) } } -static bool next_rtc_cmd_is_write(uint8_t cmd) -{ - return (cmd >= 0x80 && cmd <= 0x9f) || - (cmd == 0xb1); -} - -static void next_rtc_data_in_irq(void *opaque, int n, int level) -{ - NeXTRTC *rtc = NEXT_RTC(opaque); - - if (rtc->phase < 8) { - rtc->command = (rtc->command << 1) | level; - - if (rtc->phase == 7 && !next_rtc_cmd_is_write(rtc->command)) { - if (rtc->command <= 0x1f) { - /* RAM registers */ - rtc->retval = rtc->ram[rtc->command]; - } - if ((rtc->command >= 0x20) && (rtc->command <= 0x2f)) { - /* RTC */ - time_t time_h = time(NULL); - struct tm *info = localtime(&time_h); - rtc->retval = 0; - - switch (rtc->command) { - case 0x20: - rtc->retval = SCR2_TOBCD(info->tm_sec); - break; - case 0x21: - rtc->retval = SCR2_TOBCD(info->tm_min); - break; - case 0x22: - rtc->retval = SCR2_TOBCD(info->tm_hour); - break; - case 0x24: - rtc->retval = SCR2_TOBCD(info->tm_mday); - break; - case 0x25: - rtc->retval = SCR2_TOBCD((info->tm_mon + 1)); - break; - case 0x26: - rtc->retval = SCR2_TOBCD((info->tm_year - 100)); - break; - } - } - if (rtc->command == 0x30) { - /* read the status 0x30 */ - rtc->retval = rtc->status; - } - if (rtc->command == 0x31) { - /* read the control 0x31 */ - rtc->retval = rtc->control; - } - } - } - if (rtc->phase >= 8 && rtc->phase < 16) { - if (next_rtc_cmd_is_write(rtc->command)) { - /* Shift in value to write */ - rtc->value = (rtc->value << 1) | level; - } else { - /* Shift out value to read */ - if (rtc->retval & (0x80 >> (rtc->phase - 8))) { - qemu_irq_raise(rtc->data_out_irq); - } else { - qemu_irq_lower(rtc->data_out_irq); - } - } - } - - rtc->phase++; - if (rtc->phase == 16 && next_rtc_cmd_is_write(rtc->command)) { - if (rtc->command >= 0x80 && rtc->command <= 0x9f) { - /* RAM registers */ - rtc->ram[rtc->command - 0x80] = rtc->value; - } - if (rtc->command == 0xb1) { - /* write to 0x30 register */ - if (rtc->value & 0x04) { - /* clear FTU */ - rtc->status = rtc->status & (~0x18); - qemu_irq_lower(rtc->power_irq); - } - } - } -} - static void next_scr2_rtc_update(NeXTPC *s) { uint8_t old_scr2, scr2_2; @@ -1012,6 +926,92 @@ static const MemoryRegionOps next_dummy_en_ops = { .endianness = DEVICE_BIG_ENDIAN, }; +static bool next_rtc_cmd_is_write(uint8_t cmd) +{ + return (cmd >= 0x80 && cmd <= 0x9f) || + (cmd == 0xb1); +} + +static void next_rtc_data_in_irq(void *opaque, int n, int level) +{ + NeXTRTC *rtc = NEXT_RTC(opaque); + + if (rtc->phase < 8) { + rtc->command = (rtc->command << 1) | level; + + if (rtc->phase == 7 && !next_rtc_cmd_is_write(rtc->command)) { + if (rtc->command <= 0x1f) { + /* RAM registers */ + rtc->retval = rtc->ram[rtc->command]; + } + if ((rtc->command >= 0x20) && (rtc->command <= 0x2f)) { + /* RTC */ + time_t time_h = time(NULL); + struct tm *info = localtime(&time_h); + rtc->retval = 0; + + switch (rtc->command) { + case 0x20: + rtc->retval = SCR2_TOBCD(info->tm_sec); + break; + case 0x21: + rtc->retval = SCR2_TOBCD(info->tm_min); + break; + case 0x22: + rtc->retval = SCR2_TOBCD(info->tm_hour); + break; + case 0x24: + rtc->retval = SCR2_TOBCD(info->tm_mday); + break; + case 0x25: + rtc->retval = SCR2_TOBCD((info->tm_mon + 1)); + break; + case 0x26: + rtc->retval = SCR2_TOBCD((info->tm_year - 100)); + break; + } + } + if (rtc->command == 0x30) { + /* read the status 0x30 */ + rtc->retval = rtc->status; + } + if (rtc->command == 0x31) { + /* read the control 0x31 */ + rtc->retval = rtc->control; + } + } + } + if (rtc->phase >= 8 && rtc->phase < 16) { + if (next_rtc_cmd_is_write(rtc->command)) { + /* Shift in value to write */ + rtc->value = (rtc->value << 1) | level; + } else { + /* Shift out value to read */ + if (rtc->retval & (0x80 >> (rtc->phase - 8))) { + qemu_irq_raise(rtc->data_out_irq); + } else { + qemu_irq_lower(rtc->data_out_irq); + } + } + } + + rtc->phase++; + if (rtc->phase == 16 && next_rtc_cmd_is_write(rtc->command)) { + if (rtc->command >= 0x80 && rtc->command <= 0x9f) { + /* RAM registers */ + rtc->ram[rtc->command - 0x80] = rtc->value; + } + if (rtc->command == 0xb1) { + /* write to 0x30 register */ + if (rtc->value & 0x04) { + /* clear FTU */ + rtc->status = rtc->status & (~0x18); + qemu_irq_lower(rtc->power_irq); + } + } + } +} + static void next_rtc_cmd_reset_irq(void *opaque, int n, int level) { NeXTRTC *rtc = NEXT_RTC(opaque); -- 2.30.2