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/* SPDX-License-Identifier: GPL-2.0-only */
#include <stdint.h>
#include <string.h>
#include <acpi/acpi.h>
#include <acpi/acpi_pld.h>
int acpi_pld_fill_usb(struct acpi_pld *pld, enum acpi_upc_type type,
struct acpi_pld_group *group)
{
if (!pld)
return -1;
memset(pld, 0, sizeof(struct acpi_pld));
/* Set defaults */
pld->ignore_color = 1;
pld->panel = PLD_PANEL_UNKNOWN;
pld->vertical_position = PLD_VERTICAL_POSITION_CENTER;
pld->horizontal_position = PLD_HORIZONTAL_POSITION_CENTER;
pld->rotation = PLD_ROTATE_0;
pld->visible = 1;
pld->group.token = group->token;
pld->group.position = group->position;
/* Set the shape based on port type */
switch (type) {
case UPC_TYPE_A:
case UPC_TYPE_USB3_A:
case UPC_TYPE_USB3_POWER_B:
pld->shape = PLD_SHAPE_HORIZONTAL_RECTANGLE;
break;
case UPC_TYPE_MINI_AB:
case UPC_TYPE_USB3_B:
pld->shape = PLD_SHAPE_CHAMFERED;
break;
case UPC_TYPE_USB3_MICRO_B:
case UPC_TYPE_USB3_MICRO_AB:
pld->shape = PLD_SHAPE_HORIZONTAL_TRAPEZOID;
break;
case UPC_TYPE_C_USB2_ONLY:
case UPC_TYPE_C_USB2_SS_SWITCH:
case UPC_TYPE_C_USB2_SS:
pld->shape = PLD_SHAPE_OVAL;
break;
case UPC_TYPE_INTERNAL:
default:
pld->shape = PLD_SHAPE_UNKNOWN;
pld->visible = 0;
break;
}
return 0;
}
int acpi_pld_to_buffer(const struct acpi_pld *pld, uint8_t *buf, int buf_len)
{
if (!pld || !buf)
return -1;
memset(buf, 0, buf_len);
/* [0] Revision (=2) */
buf[0] = 0x2;
if (pld->ignore_color) {
/* [1] Ignore Color */
buf[0] |= 0x80;
} else {
/* [15:8] Red Color */
buf[1] = pld->color_red;
/* [23:16] Green Color */
buf[2] = pld->color_green;
/* [31:24] Blue Color */
buf[3] = pld->color_blue;
}
/* [47:32] Width */
buf[4] = pld->width & 0xff;
buf[5] = pld->width >> 8;
/* [63:48] Height */
buf[6] = pld->height & 0xff;
buf[7] = pld->height >> 8;
/* [64] User Visible */
buf[8] |= (pld->visible & 0x1);
/* [65] Dock */
buf[8] |= (pld->dock & 0x1) << 1;
/* [66] Lid */
buf[8] |= (pld->lid & 0x1) << 2;
/* [69:67] Panel */
buf[8] |= (pld->panel & 0x7) << 3;
/* [71:70] Vertical Position */
buf[8] |= (pld->vertical_position & 0x3) << 6;
/* [73:72] Horizontal Position */
buf[9] |= (pld->horizontal_position & 0x3);
/* [77:74] Shape */
buf[9] |= (pld->shape & 0xf) << 2;
/* [78] Orientation */
buf[9] |= (pld->orientation & 0x1) << 6;
/* [86:79] Group Token (incorrectly defined as 1 bit in ACPI 6.2A) */
buf[9] |= (pld->group.token & 0x1) << 7;
buf[10] |= (pld->group.token >> 0x1) & 0x7f;
/* [94:87] Group Position */
buf[10] |= (pld->group.position & 0x1) << 7;
buf[11] |= (pld->group.position >> 0x1) & 0x7f;
/* [95] Bay */
buf[11] |= (pld->bay & 0x1) << 7;
/* [96] Ejectable */
buf[12] |= (pld->ejectable & 0x1);
/* [97] Ejectable with OSPM help */
buf[12] |= (pld->ejectable_ospm & 0x1) << 1;
/* [105:98] Cabinet Number */
buf[12] |= (pld->cabinet_number & 0x3f) << 2;
buf[13] |= (pld->cabinet_number >> 6) & 0x3;
/* [113:106] Card Cage Number */
buf[13] |= (pld->card_cage_number & 0x3f) << 2;
buf[14] |= (pld->card_cage_number >> 6) & 0x3;
/* [114] PLD is a Reference Shape */
buf[14] |= (pld->reference_shape & 0x1) << 2;
/* [118:115] Rotation */
buf[14] |= (pld->rotation & 0xf) << 3;
/* [123:119] Draw Order */
buf[14] |= (pld->draw_order & 0x1) << 7;
buf[15] |= (pld->draw_order >> 1) & 0xf;
/* [127:124] Reserved */
/* Both 16 byte and 20 byte buffers are supported by the spec */
if (buf_len == 20) {
/* [143:128] Vertical Offset */
buf[16] = pld->vertical_offset & 0xff;
buf[17] = pld->vertical_offset >> 8;
/* [159:144] Horizontal Offset */
buf[18] = pld->horizontal_offset & 0xff;
buf[19] = pld->horizontal_offset >> 8;
}
return 0;
}
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