From 819ce6b2a598b5c5c6866a3a6d1acb5261592f8a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Fri, 4 Oct 2019 01:03:54 +0200 Subject: hw: Move M48T59 device from hw/timer/ to hw/rtc/ subdirectory MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The M48T59 is a Real Time Clock, not a timer. Move it under the hw/rtc/ subdirectory. Reviewed-by: Alistair Francis Signed-off-by: Philippe Mathieu-Daudé Message-Id: <20191003230404.19384-5-philmd@redhat.com> Signed-off-by: Laurent Vivier --- hw/rtc/m48t59-internal.h | 80 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 hw/rtc/m48t59-internal.h (limited to 'hw/rtc/m48t59-internal.h') diff --git a/hw/rtc/m48t59-internal.h b/hw/rtc/m48t59-internal.h new file mode 100644 index 0000000..4d4f2a6 --- /dev/null +++ b/hw/rtc/m48t59-internal.h @@ -0,0 +1,80 @@ +/* + * QEMU M48T59 and M48T08 NVRAM emulation (common header) + * + * Copyright (c) 2003-2005, 2007 Jocelyn Mayer + * Copyright (c) 2013 Hervé Poussineau + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef HW_M48T59_INTERNAL_H +#define HW_M48T59_INTERNAL_H + +#define M48T59_DEBUG 0 + +#define NVRAM_PRINTF(fmt, ...) do { \ + if (M48T59_DEBUG) { printf(fmt , ## __VA_ARGS__); } } while (0) + +/* + * The M48T02, M48T08 and M48T59 chips are very similar. The newer '59 has + * alarm and a watchdog timer and related control registers. In the + * PPC platform there is also a nvram lock function. + */ + +typedef struct M48txxInfo { + const char *bus_name; + uint32_t model; /* 2 = m48t02, 8 = m48t08, 59 = m48t59 */ + uint32_t size; +} M48txxInfo; + +typedef struct M48t59State { + /* Hardware parameters */ + qemu_irq IRQ; + MemoryRegion iomem; + uint32_t size; + int32_t base_year; + /* RTC management */ + time_t time_offset; + time_t stop_time; + /* Alarm & watchdog */ + struct tm alarm; + QEMUTimer *alrm_timer; + QEMUTimer *wd_timer; + /* NVRAM storage */ + uint8_t *buffer; + /* Model parameters */ + uint32_t model; /* 2 = m48t02, 8 = m48t08, 59 = m48t59 */ + /* NVRAM storage */ + uint16_t addr; + uint8_t lock; +} M48t59State; + +uint32_t m48t59_read(M48t59State *NVRAM, uint32_t addr); +void m48t59_write(M48t59State *NVRAM, uint32_t addr, uint32_t val); +void m48t59_reset_common(M48t59State *NVRAM); +void m48t59_realize_common(M48t59State *s, Error **errp); + +static inline void m48t59_toggle_lock(M48t59State *NVRAM, int lock) +{ + NVRAM->lock ^= 1 << lock; +} + +extern const MemoryRegionOps m48t59_io_ops; + +#endif /* HW_M48T59_INTERNAL_H */ -- cgit v1.1