landisk/dev/rs5c313.c

70 rs5c313_init(struct rs5c313_softc *sc)
75 	rtc_ce(sc, 0);
77 	rtc_begin(sc);
78 	rtc_ce(sc, 1);
80 	if ((rs5c313_read_reg(sc, RS5C313_CTRL) & CTRL_XSTP) == 0) {
81 		sc->sc_valid = 1;
85 	sc->sc_valid = 0;
86 	printf("%s: time not valid\n", sc->sc_dev.dv_xname);
88 	rs5c313_write_reg(sc, RS5C313_TINT, 0);
89 	rs5c313_write_reg(sc, RS5C313_CTRL, (CTRL_BASE | CTRL_ADJ));
92 		if (rs5c313_read_reg(sc, RS5C313_CTRL) & CTRL_BSY)
103 	rs5c313_write_reg(sc, RS5C313_CTRL, CTRL_BASE);
106 	rtc_ce(sc, 0);
111 rs5c313_read_reg(struct rs5c313_softc *sc, int addr)
116 	rtc_dir(sc, 1);
119 	rtc_write(sc, 1);		/* ignored */
120 	rtc_write(sc, 1);		/* R/#W = 1(READ) */
121 	rtc_write(sc, 1);		/* AD = 1 */
122 	rtc_write(sc, 0);		/* DT = 0 */
125 	rtc_write(sc, addr & 0x8);	/* A3 */
126 	rtc_write(sc, addr & 0x4);	/* A2 */
127 	rtc_write(sc, addr & 0x2);	/* A1 */
128 	rtc_write(sc, addr & 0x1);	/* A0 */
131 	rtc_dir(sc, 0);
134 	(void)rtc_read(sc);
135 	(void)rtc_read(sc);
136 	(void)rtc_read(sc);
137 	(void)rtc_read(sc);
140 	data = rtc_read(sc);	/* D3 */
142 	data |= rtc_read(sc);	/* D2 */
144 	data |= rtc_read(sc);	/* D1 */
146 	data |= rtc_read(sc);	/* D0 */
152 rs5c313_write_reg(struct rs5c313_softc *sc, int addr, int data)
155 	rtc_dir(sc, 1);
158 	rtc_write(sc, 1);		/* ignored */
159 	rtc_write(sc, 0);		/* R/#W = 0 (WRITE) */
160 	rtc_write(sc, 1);		/* AD = 1 */
161 	rtc_write(sc, 0);		/* DT = 0 */
164 	rtc_write(sc, addr & 0x8);	/* A3 */
165 	rtc_write(sc, addr & 0x4);	/* A2 */
166 	rtc_write(sc, addr & 0x2);	/* A1 */
167 	rtc_write(sc, addr & 0x1);	/* A0 */
170 	rtc_write(sc, 1);		/* ignored */
171 	rtc_write(sc, 0);		/* R/#W = 0(WRITE) */
172 	rtc_write(sc, 0);		/* AD = 0 */
173 	rtc_write(sc, 1);		/* DT = 1 */
176 	rtc_write(sc, data & 0x8);	/* D3 */
177 	rtc_write(sc, data & 0x4);	/* D2 */
178 	rtc_write(sc, data & 0x2);	/* D1 */
179 	rtc_write(sc, data & 0x1);	/* D0 */
185 	struct rs5c313_softc *sc = cookie;
193 	if (sc->sc_valid == 0)
198 	rtc_begin(sc);
200 		rtc_ce(sc, 1);
202 		rs5c313_write_reg(sc, RS5C313_CTRL, CTRL_BASE);
203 		if ((rs5c313_read_reg(sc, RS5C313_CTRL) & CTRL_BSY) == 0)
206 		rtc_ce(sc, 0);
217 		int ones = rs5c313_read_reg(sc, RS5C313_ ## y ## 1);	\
218 		int tens = rs5c313_read_reg(sc, RS5C313_ ## y ## 10);	\
229 	dt->dt_wday = rs5c313_read_reg(sc, RS5C313_WDAY);
231 	rtc_ce(sc, 0);
243 	struct rs5c313_softc *sc = cookie;
250 	rtc_begin(sc);
252 		rtc_ce(sc, 1);
254 		rs5c313_write_reg(sc, RS5C313_CTRL, CTRL_BASE);
255 		if ((rs5c313_read_reg(sc, RS5C313_CTRL) & CTRL_BSY) == 0)
258 		rtc_ce(sc, 0);
270 		rs5c313_write_reg(sc, RS5C313_ ## x ## 1, t & 0x0f);	     \
271 		rs5c313_write_reg(sc, RS5C313_ ## x ## 10, (t >> 4) & 0x0f); \
284 	rs5c313_write_reg(sc, RS5C313_YEAR1, t & 0x0f);
285 	rs5c313_write_reg(sc, RS5C313_YEAR10, (t >> 4) & 0x0f);
287 	rs5c313_write_reg(sc, RS5C313_WDAY, dt->dt_wday);
289 	rtc_ce(sc, 0);
292 	sc->sc_valid = 1;
303 rtc_begin(struct rs5c313_softc *sc)
314 rtc_ce(struct rs5c313_softc *sc, int onoff)
328 rtc_clk(struct rs5c313_softc *sc, int onoff)
344 rtc_dir(struct rs5c313_softc *sc, int output)
359 rtc_read(struct rs5c313_softc *sc)
367 	rtc_clk(sc, 0);
369 	rtc_clk(sc, 1);
378 rtc_write(struct rs5c313_softc *sc, int bit)
390 	rtc_clk(sc, 0);
392 	rtc_clk(sc, 1);
422 	struct rs5c313_softc *sc = (void *)self;
426 	if (rs5c313_init(sc) != 0) {
431 	rs5c313_ops._cookie = sc;