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()
74 		return -1;  in bbc_spkr_event()
79 		default: return -1;  in bbc_spkr_event()
87 	guard(spinlock_irqsave)(&state->lock);  in bbc_spkr_event()
90 		sbus_writeb(0x01,                 info->regs + 0);  in bbc_spkr_event()
91 		sbus_writeb(0x00,                 info->regs + 2);  in bbc_spkr_event()
92 		sbus_writeb((count >> 16) & 0xff, info->regs + 3);  in bbc_spkr_event()
93 		sbus_writeb((count >>  8) & 0xff, info->regs + 4);  in bbc_spkr_event()
94 		sbus_writeb(0x00,                 info->regs + 5);  in bbc_spkr_event()
96 		sbus_writeb(0x00,                 info->regs + 0);  in bbc_spkr_event()
104 	struct sparcspkr_state *state = dev_get_drvdata(dev->dev.parent);  in grover_spkr_event()
105 	struct grover_beep_info *info = &state->u.grover;  in grover_spkr_event()
109 		return -1;  in grover_spkr_event()
114 		default: return -1;  in grover_spkr_event()
120 	guard(spinlock_irqsave)(&state->lock);  in grover_spkr_event()
124 		sbus_writeb(sbus_readb(info->enable_reg) | 3, info->enable_reg);  in grover_spkr_event()
126 		sbus_writeb(0xB6, info->freq_regs + 1);  in grover_spkr_event()
127 		/* select desired HZ */  in grover_spkr_event()
128 		sbus_writeb(count & 0xff, info->freq_regs + 0);  in grover_spkr_event()
129 		sbus_writeb((count >> 8) & 0xff, info->freq_regs + 0);  in grover_spkr_event()
132 		sbus_writeb(sbus_readb(info->enable_reg) & 0xFC, info->enable_reg);  in grover_spkr_event()
146 		return -ENOMEM;  in sparcspkr_probe()
148 	input_dev->name = state->name;  in sparcspkr_probe()
149 	input_dev->phys = "sparc/input0";  in sparcspkr_probe()
150 	input_dev->id.bustype = BUS_ISA;  in sparcspkr_probe()
151 	input_dev->id.vendor = 0x001f;  in sparcspkr_probe()
152 	input_dev->id.product = 0x0001;  in sparcspkr_probe()
153 	input_dev->id.version = 0x0100;  in sparcspkr_probe()
154 	input_dev->dev.parent = dev;  in sparcspkr_probe()
156 	input_dev->evbit[0] = BIT_MASK(EV_SND);  in sparcspkr_probe()
157 	input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);  in sparcspkr_probe()
159 	input_dev->event = state->event;  in sparcspkr_probe()
167 	state->input_dev = input_dev;  in sparcspkr_probe()
175 	struct input_dev *input_dev = state->input_dev;  in sparcspkr_shutdown()
178 	state->event(input_dev, EV_SND, SND_BELL, 0);  in sparcspkr_shutdown()
187 	state = devm_kzalloc(&op->dev, sizeof(*state), GFP_KERNEL);  in bbc_beep_probe()
189 		return -ENOMEM;  in bbc_beep_probe()
191 	state->name = "Sparc BBC Speaker";  in bbc_beep_probe()
192 	state->event = bbc_spkr_event;  in bbc_beep_probe()
193 	spin_lock_init(&state->lock);  in bbc_beep_probe()
197 		return -ENODEV;  in bbc_beep_probe()
199 	info = &state->u.bbc;  in bbc_beep_probe()
200 	info->clock_freq = of_getintprop_default(dp, "clock-frequency", 0);  in bbc_beep_probe()
201 	if (!info->clock_freq)  in bbc_beep_probe()
202 		return -ENODEV;  in bbc_beep_probe()
204 	info->regs = of_ioremap(&op->resource[0], 0, 6, "bbc beep");  in bbc_beep_probe()
205 	if (!info->regs)  in bbc_beep_probe()
206 		return -ENODEV;  in bbc_beep_probe()
210 	err = sparcspkr_probe(&op->dev);  in bbc_beep_probe()
212 		of_iounmap(&op->resource[0], info->regs, 6);  in bbc_beep_probe()
222 	struct input_dev *input_dev = state->input_dev;  in bbc_remove()
223 	struct bbc_beep_info *info = &state->u.bbc;  in bbc_remove()
226 	state->event(input_dev, EV_SND, SND_BELL, 0);  in bbc_remove()
230 	of_iounmap(&op->resource[0], info->regs, 6);  in bbc_remove()
236 		.compatible = "SUNW,bbc-beep",
256 	int err = -ENOMEM;  in grover_beep_probe()
258 	state = devm_kzalloc(&op->dev, sizeof(*state), GFP_KERNEL);  in grover_beep_probe()
262 	state->name = "Sparc Grover Speaker";  in grover_beep_probe()
263 	state->event = grover_spkr_event;  in grover_beep_probe()
264 	spin_lock_init(&state->lock);  in grover_beep_probe()
266 	info = &state->u.grover;  in grover_beep_probe()
267 	info->freq_regs = of_ioremap(&op->resource[2], 0, 2, "grover beep freq");  in grover_beep_probe()
268 	if (!info->freq_regs)  in grover_beep_probe()
271 	info->enable_reg = of_ioremap(&op->resource[3], 0, 1, "grover beep enable");  in grover_beep_probe()
272 	if (!info->enable_reg)  in grover_beep_probe()
277 	err = sparcspkr_probe(&op->dev);  in grover_beep_probe()
284 	of_iounmap(&op->resource[3], info->enable_reg, 1);  in grover_beep_probe()
287 	of_iounmap(&op->resource[2], info->freq_regs, 2);  in grover_beep_probe()
295 	struct grover_beep_info *info = &state->u.grover;  in grover_remove()
296 	struct input_dev *input_dev = state->input_dev;  in grover_remove()
299 	state->event(input_dev, EV_SND, SND_BELL, 0);  in grover_remove()
303 	of_iounmap(&op->resource[3], info->enable_reg, 1);  in grover_remove()
304 	of_iounmap(&op->resource[2], info->freq_regs, 2);  in grover_remove()
310 		.compatible = "SUNW,smbus-beep",