123 static inline void ipc_command(struct intel_scu_ipc_dev *scu, u32 cmd)  in ipc_command()  argument
125 	if (scu->irq_mode) {  in ipc_command()
126 		reinit_completion(&scu->cmd_complete);  in ipc_command()
127 		writel(cmd | IPC_IOC, scu->ipc_base);  in ipc_command()
129 	writel(cmd, scu->ipc_base);  in ipc_command()
138 static inline void ipc_data_writel(struct intel_scu_ipc_dev *scu, u32 data, u32 offset)  in ipc_data_writel()  argument
140 	writel(data, scu->ipc_base + 0x80 + offset);  in ipc_data_writel()
150 static inline u8 ipc_read_status(struct intel_scu_ipc_dev *scu)  in ipc_read_status()  argument
152 	return __raw_readl(scu->ipc_base + 0x04);  in ipc_read_status()
156 static inline u8 ipc_data_readb(struct intel_scu_ipc_dev *scu, u32 offset)  in ipc_data_readb()  argument
158 	return readb(scu->ipc_base + IPC_READ_BUFFER + offset);  in ipc_data_readb()
162 static inline u32 ipc_data_readl(struct intel_scu_ipc_dev *scu, u32 offset)  in ipc_data_readl()  argument
164 	return readl(scu->ipc_base + IPC_READ_BUFFER + offset);  in ipc_data_readl()
168 static inline int busy_loop(struct intel_scu_ipc_dev *scu)  in busy_loop()  argument
170 	u32 status = ipc_read_status(scu);  in busy_loop()
176 		status = ipc_read_status(scu);  in busy_loop()
180 		dev_err(scu->dev, "IPC timed out");  in busy_loop()
191 static inline int ipc_wait_for_interrupt(struct intel_scu_ipc_dev *scu)  in ipc_wait_for_interrupt()  argument
195 	if (!wait_for_completion_timeout(&scu->cmd_complete, 3 * HZ)) {  in ipc_wait_for_interrupt()
196 		dev_err(scu->dev, "IPC timed out\n");  in ipc_wait_for_interrupt()
200 	status = ipc_read_status(scu);  in ipc_wait_for_interrupt()
207 static int intel_scu_ipc_check_status(struct intel_scu_ipc_dev *scu)  in intel_scu_ipc_check_status()  argument
209 	return scu->irq_mode ? ipc_wait_for_interrupt(scu) : busy_loop(scu);  in intel_scu_ipc_check_status()
215 	struct intel_scu_ipc_dev *scu = &ipcdev;  in pwr_reg_rdwr()  local
226 	if (scu->dev == NULL) {  in pwr_reg_rdwr()
238 			ipc_data_writel(scu, wbuf[nc], offset);  in pwr_reg_rdwr()
239 		ipc_command(scu, (count * 2) << 16 | id << 12 | 0 << 8 | op);  in pwr_reg_rdwr()
244 			ipc_data_writel(scu, wbuf[nc], offset);  in pwr_reg_rdwr()
245 		ipc_command(scu, (count * 3) << 16 | id << 12 | 0 << 8 | op);  in pwr_reg_rdwr()
249 		ipc_data_writel(scu, wbuf[0], 0); /* Write wbuff */  in pwr_reg_rdwr()
250 		ipc_command(scu, 4 << 16 | id << 12 | 0 << 8 | op);  in pwr_reg_rdwr()
253 	err = intel_scu_ipc_check_status(scu);  in pwr_reg_rdwr()
256 		memcpy_fromio(cbuf, scu->ipc_base + 0x90, 16);  in pwr_reg_rdwr()
258 			data[nc] = ipc_data_readb(scu, nc);  in pwr_reg_rdwr()
439 	struct intel_scu_ipc_dev *scu = &ipcdev;  in intel_scu_ipc_simple_command()  local
443 	if (scu->dev == NULL) {  in intel_scu_ipc_simple_command()
447 	ipc_command(scu, sub << 12 | cmd);  in intel_scu_ipc_simple_command()
448 	err = intel_scu_ipc_check_status(scu);  in intel_scu_ipc_simple_command()
469 	struct intel_scu_ipc_dev *scu = &ipcdev;  in intel_scu_ipc_command()  local
473 	if (scu->dev == NULL) {  in intel_scu_ipc_command()
479 		ipc_data_writel(scu, *in++, 4 * i);  in intel_scu_ipc_command()
481 	ipc_command(scu, (inlen << 16) | (sub << 12) | cmd);  in intel_scu_ipc_command()
482 	err = intel_scu_ipc_check_status(scu);  in intel_scu_ipc_command()
486 			*out++ = ipc_data_readl(scu, 4 * i);  in intel_scu_ipc_command()
515 	struct intel_scu_ipc_dev *scu = &ipcdev;  in intel_scu_ipc_raw_command()  local
525 	if (scu->dev == NULL) {  in intel_scu_ipc_raw_command()
530 	writel(dptr, scu->ipc_base + IPC_DPTR);  in intel_scu_ipc_raw_command()
531 	writel(sptr, scu->ipc_base + IPC_SPTR);  in intel_scu_ipc_raw_command()
543 		ipc_data_writel(scu, inbuf[i], 4 * i);  in intel_scu_ipc_raw_command()
545 	ipc_command(scu, (inlen << 16) | (sub << 12) | cmd);  in intel_scu_ipc_raw_command()
546 	err = intel_scu_ipc_check_status(scu);  in intel_scu_ipc_raw_command()
549 			*out++ = ipc_data_readl(scu, 4 * i);  in intel_scu_ipc_raw_command()
575 	struct intel_scu_ipc_dev *scu = &ipcdev;  in intel_scu_ipc_i2c_cntrl()  local
579 	if (scu->dev == NULL) {  in intel_scu_ipc_i2c_cntrl()
585 		writel(addr, scu->i2c_base + IPC_I2C_CNTRL_ADDR);  in intel_scu_ipc_i2c_cntrl()
588 		*data = readl(scu->i2c_base + I2C_DATA_ADDR);  in intel_scu_ipc_i2c_cntrl()
590 		writel(*data, scu->i2c_base + I2C_DATA_ADDR);  in intel_scu_ipc_i2c_cntrl()
592 		writel(addr, scu->i2c_base + IPC_I2C_CNTRL_ADDR);  in intel_scu_ipc_i2c_cntrl()
594 		dev_err(scu->dev,  in intel_scu_ipc_i2c_cntrl()
614 	struct intel_scu_ipc_dev *scu = dev_id;  in ioc()  local
616 	if (scu->irq_mode)  in ioc()
617 		complete(&scu->cmd_complete);  in ioc()
633 	struct intel_scu_ipc_dev *scu = &ipcdev;  in ipc_probe()  local
636 	if (scu->dev)		/* We support only one SCU */  in ipc_probe()
643 	scu->irq_mode = pdata->irq_mode;  in ipc_probe()
653 	init_completion(&scu->cmd_complete);  in ipc_probe()
655 	scu->ipc_base = pcim_iomap_table(pdev)[0];  in ipc_probe()
657 	scu->i2c_base = ioremap_nocache(pdata->i2c_base, pdata->i2c_len);  in ipc_probe()
658 	if (!scu->i2c_base)  in ipc_probe()
662 			       scu);  in ipc_probe()
667 	scu->dev = &pdev->dev;  in ipc_probe()
671 	pci_set_drvdata(pdev, scu);  in ipc_probe()