include/usb/ulpi.h

1 /* SPDX-License-Identifier: GPL-2.0 */
3  * Generic ULPI interface.
12  * linux/include/linux/usb/ulpi.h
28  * ulpi view port address and
39  * Initialize the ULPI transciever and check the interface integrity.
40  * @ulpi_vp -  structure containing ULPI viewport data
48  * @speed	- ULPI_FC_HIGH_SPEED, ULPI_FC_FULL_SPEED (default),
56  * @ext_power		- external VBUS supply is used (default is false)
57  * @ext_indicator	- external VBUS over-current indicator is used
65  * @external		- external VBUS over-current indicator is used
66  * @passthru		- disables ANDing of internal VBUS comparator
68  * @complement		- inverts the external VBUS input
74  * Enable/disable pull-down resistors on D+ and D- USB lines.
82  * @opmode	- ULPI_FC_OPMODE_NORMAL (default), ULPI_FC_OPMODE_NONDRIVING,
91  * @smode	- ULPI_IFACE_6_PIN_SERIAL_MODE or ULPI_IFACE_3_PIN_SERIAL_MODE
113  * Reset the transceiver. ULPI interface and registers are not affected.
120 /* ULPI access methods below must be implemented for each ULPI viewport. */
123  * Write to the ULPI PHY register via the viewport.
124  * @reg		- the ULPI register (one of the fields in struct ulpi_regs).
125  *		  Due to ULPI design, only 8 lsb of address are used.
126  * @value	- the value - only 8 lower bits are used, others ignored.
133  * Read the ULPI PHY register content via the viewport.
134  * @reg		- the ULPI register (one of the fields in struct ulpi_regs).
135  *		  Due to ULPI design, only 8 lsb of address are used.
143  * The Link must not attempt to access the PHY until the reset has
144  * completed and DIR line is de-asserted.
149 #define ACCESS_EXT_REGS_OFFSET	0x2f	/* read-write */
150 /* Vendor-specific */
156  * Addresses 0x00-0x3F map directly to Immediate Register Set.
157  * Addresses 0x40-0x7F are reserved.
158  * Addresses 0x80-0xff are vendor-specific.
162 /* ULPI registers, bits and offsets definitions */
164 	/* Vendor ID and Product ID: 0x00 - 0x03 Read-only */
169 	/* Function Control: 0x04 - 0x06 Read */
173 	/* Interface Control: 0x07 - 0x09 Read */
177 	/* OTG Control: 0x0A - 0x0C Read */
181 	/* USB Interrupt Enable Rising: 0x0D - 0x0F Read */
185 	/* USB Interrupt Enable Falling: 0x10 - 0x12 Read */
189 	/* USB Interrupt Status: 0x13 Read-only */
191 	/* USB Interrupt Latch: 0x14 Read-only with auto-clear */
193 	/* Debug: 0x15 Read-only */
195 	/* Scratch Register: 0x16 - 0x18 Read */
201 	 * Carkit Control: 0x19 - 0x1B Read
208 	/* Carkit Interrupt Enable: 0x1D - 0x1F Read */
212 	/* Carkit Interrupt Status: 0x20 Read-only */
214 	/* Carkit Interrupt Latch: 0x21 Read-only with auto-clear */
216 	/* Carkit Pulse Control: 0x22 - 0x24 Read */
230 	 * Addresses 0x28 - 0x2E are reserved, so we use offsets