1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
28 /* Dialog Semiconductor DA9063 PMIC, 2-WIRE */
47 #define	DA9063_IIC_PAGE_OFF(_a)	((_a) & (DA9063_IIC_PAGE_SIZE - 1))
51  * For 2-WIRE (I2C) operation pages are 256 registers but PAGE_CON is in units
63 #define	DA9063_IIC_LOCK(sc)		mtx_lock(&(sc)->mtx)
64 #define	DA9063_IIC_UNLOCK(sc)		mtx_unlock(&(sc)->mtx)
65 #define	DA9063_IIC_ASSERT_LOCKED(sc)	mtx_assert(&(sc)->mtx, MA_OWNED);
66 #define	DA9063_IIC_ASSERT_UNLOCKED(sc)	mtx_assert(&(sc)->mtx, MA_NOTOWNED);
76 	uint8_t reg;  in da9063_iic_select_page()  local
81 	if (page == sc->page)  in da9063_iic_select_page()
84 	error = iicdev_readfrom(sc->dev, DA9063_PAGE_CON, &reg, 1, IIC_WAIT);  in da9063_iic_select_page()
88 	reg &= ~(DA9063_PAGE_CON_REG_PAGE_MASK <<  in da9063_iic_select_page()
90 	reg |= (page << DA9063_IIC_PAGE_CON_REG_PAGE_SHIFT) <<  in da9063_iic_select_page()
93 	error = iicdev_writeto(sc->dev, DA9063_PAGE_CON, &reg, 1, IIC_WAIT);  in da9063_iic_select_page()
97 	sc->page = page;  in da9063_iic_select_page()
103 da9063_iic_read(device_t dev, uint16_t addr, uint8_t *val)  in da9063_iic_read()  argument
112 	error = da9063_iic_select_page(sc, DA9063_IIC_PAGE(addr));  in da9063_iic_read()
116 	error = iicdev_readfrom(dev, DA9063_IIC_PAGE_OFF(addr), val, 1,  in da9063_iic_read()
128 da9063_iic_write(device_t dev, uint16_t addr, uint8_t val)  in da9063_iic_write()  argument
137 	error = da9063_iic_select_page(sc, DA9063_IIC_PAGE(addr));  in da9063_iic_write()
141 	error = iicdev_writeto(dev, DA9063_IIC_PAGE_OFF(addr), &val, 1,  in da9063_iic_write()
153 da9063_iic_modify(device_t dev, uint16_t addr, uint8_t clear_mask,  in da9063_iic_modify()  argument
157 	uint8_t reg;  in da9063_iic_modify()  local
164 	error = da9063_iic_select_page(sc, DA9063_IIC_PAGE(addr));  in da9063_iic_modify()
168 	error = iicdev_readfrom(dev, DA9063_IIC_PAGE_OFF(addr), &reg, 1,  in da9063_iic_modify()
175 	reg &= ~clear_mask;  in da9063_iic_modify()
176 	reg |= set_mask;  in da9063_iic_modify()
178 	error = iicdev_writeto(dev, DA9063_IIC_PAGE_OFF(addr), &reg, 1,  in da9063_iic_modify()
195 	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)  in da9063_iic_probe()
207 	uint8_t reg;  in da9063_iic_attach()  local
212 	sc->dev = dev;  in da9063_iic_attach()
214 	error = iicdev_readfrom(dev, DA9063_PAGE_CON, &reg, 1, IIC_WAIT);  in da9063_iic_attach()
218 	sc->page = ((reg >> DA9063_PAGE_CON_REG_PAGE_SHIFT) &  in da9063_iic_attach()
220 	mtx_init(&sc->mtx, device_get_nameunit(sc->dev), NULL, MTX_DEF);  in da9063_iic_attach()
222 	sc->simplebus_sc.flags |= SB_FLAG_NO_RANGES;  in da9063_iic_attach()
239 	mtx_destroy(&sc->mtx);  in da9063_iic_detach()