1 // SPDX-License-Identifier: GPL-2.0-only
3  *  Driver for PC-speaker like devices found on various Sparc systems.
19 MODULE_DESCRIPTION("Sparc Speaker beeper driver");
45 	u32 val, clock_freq = info->clock_freq;  in bbc_count_to_reg()
58 	for (i = 19; i >= 11; i--) {  in bbc_count_to_reg()
69 	struct sparcspkr_state *state = dev_get_drvdata(dev->dev.parent);  in bbc_spkr_event()
70 	struct bbc_beep_info *info = &state->u.bbc;  in bbc_spkr_event()
75 		return -1;  in bbc_spkr_event()
80 		default: return -1;  in bbc_spkr_event()
88 	spin_lock_irqsave(&state->lock, flags);  in bbc_spkr_event()
91 		sbus_writeb(0x01,                 info->regs + 0);  in bbc_spkr_event()
92 		sbus_writeb(0x00,                 info->regs + 2);  in bbc_spkr_event()
93 		sbus_writeb((count >> 16) & 0xff, info->regs + 3);  in bbc_spkr_event()
94 		sbus_writeb((count >>  8) & 0xff, info->regs + 4);  in bbc_spkr_event()
95 		sbus_writeb(0x00,                 info->regs + 5);  in bbc_spkr_event()
97 		sbus_writeb(0x00,                 info->regs + 0);  in bbc_spkr_event()
100 	spin_unlock_irqrestore(&state->lock, flags);  in bbc_spkr_event()
107 	struct sparcspkr_state *state = dev_get_drvdata(dev->dev.parent);  in grover_spkr_event()
108 	struct grover_beep_info *info = &state->u.grover;  in grover_spkr_event()
113 		return -1;  in grover_spkr_event()
118 		default: return -1;  in grover_spkr_event()
124 	spin_lock_irqsave(&state->lock, flags);  in grover_spkr_event()
128 		sbus_writeb(sbus_readb(info->enable_reg) | 3, info->enable_reg);  in grover_spkr_event()
130 		sbus_writeb(0xB6, info->freq_regs + 1);  in grover_spkr_event()
131 		/* select desired HZ */  in grover_spkr_event()
132 		sbus_writeb(count & 0xff, info->freq_regs + 0);  in grover_spkr_event()
133 		sbus_writeb((count >> 8) & 0xff, info->freq_regs + 0);  in grover_spkr_event()
136 		sbus_writeb(sbus_readb(info->enable_reg) & 0xFC, info->enable_reg);  in grover_spkr_event()
139 	spin_unlock_irqrestore(&state->lock, flags);  in grover_spkr_event()
152 		return -ENOMEM;  in sparcspkr_probe()
154 	input_dev->name = state->name;  in sparcspkr_probe()
155 	input_dev->phys = "sparc/input0";  in sparcspkr_probe()
156 	input_dev->id.bustype = BUS_ISA;  in sparcspkr_probe()
157 	input_dev->id.vendor = 0x001f;  in sparcspkr_probe()
158 	input_dev->id.product = 0x0001;  in sparcspkr_probe()
159 	input_dev->id.version = 0x0100;  in sparcspkr_probe()
160 	input_dev->dev.parent = dev;  in sparcspkr_probe()
162 	input_dev->evbit[0] = BIT_MASK(EV_SND);  in sparcspkr_probe()
163 	input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);  in sparcspkr_probe()
165 	input_dev->event = state->event;  in sparcspkr_probe()
173 	state->input_dev = input_dev;  in sparcspkr_probe()
181 	struct input_dev *input_dev = state->input_dev;  in sparcspkr_shutdown()
184 	state->event(input_dev, EV_SND, SND_BELL, 0);  in sparcspkr_shutdown()
192 	int err = -ENOMEM;  in bbc_beep_probe()
198 	state->name = "Sparc BBC Speaker";  in bbc_beep_probe()
199 	state->event = bbc_spkr_event;  in bbc_beep_probe()
200 	spin_lock_init(&state->lock);  in bbc_beep_probe()
203 	err = -ENODEV;  in bbc_beep_probe()
207 	info = &state->u.bbc;  in bbc_beep_probe()
208 	info->clock_freq = of_getintprop_default(dp, "clock-frequency", 0);  in bbc_beep_probe()
210 	if (!info->clock_freq)  in bbc_beep_probe()
213 	info->regs = of_ioremap(&op->resource[0], 0, 6, "bbc beep");  in bbc_beep_probe()
214 	if (!info->regs)  in bbc_beep_probe()
219 	err = sparcspkr_probe(&op->dev);  in bbc_beep_probe()
226 	of_iounmap(&op->resource[0], info->regs, 6);  in bbc_beep_probe()
237 	struct input_dev *input_dev = state->input_dev;  in bbc_remove()
238 	struct bbc_beep_info *info = &state->u.bbc;  in bbc_remove()
241 	state->event(input_dev, EV_SND, SND_BELL, 0);  in bbc_remove()
245 	of_iounmap(&op->resource[0], info->regs, 6);  in bbc_remove()
253 		.compatible = "SUNW,bbc-beep",
273 	int err = -ENOMEM;  in grover_beep_probe()
279 	state->name = "Sparc Grover Speaker";  in grover_beep_probe()
280 	state->event = grover_spkr_event;  in grover_beep_probe()
281 	spin_lock_init(&state->lock);  in grover_beep_probe()
283 	info = &state->u.grover;  in grover_beep_probe()
284 	info->freq_regs = of_ioremap(&op->resource[2], 0, 2, "grover beep freq");  in grover_beep_probe()
285 	if (!info->freq_regs)  in grover_beep_probe()
288 	info->enable_reg = of_ioremap(&op->resource[3], 0, 1, "grover beep enable");  in grover_beep_probe()
289 	if (!info->enable_reg)  in grover_beep_probe()
294 	err = sparcspkr_probe(&op->dev);  in grover_beep_probe()
301 	of_iounmap(&op->resource[3], info->enable_reg, 1);  in grover_beep_probe()
304 	of_iounmap(&op->resource[2], info->freq_regs, 2);  in grover_beep_probe()
314 	struct grover_beep_info *info = &state->u.grover;  in grover_remove()
315 	struct input_dev *input_dev = state->input_dev;  in grover_remove()
318 	state->event(input_dev, EV_SND, SND_BELL, 0);  in grover_remove()
322 	of_iounmap(&op->resource[3], info->enable_reg, 1);  in grover_remove()
323 	of_iounmap(&op->resource[2], info->freq_regs, 2);  in grover_remove()
331 		.compatible = "SUNW,smbus-beep",