Commit | Line | Data |
---|---|---|
7a014a87 BS |
1 | /* |
2 | * Copyright 2014 Red Hat Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | * Authors: Ben Skeggs | |
23 | */ | |
878da15a BS |
24 | #include "conn.h" |
25 | #include "outp.h" | |
26 | #include "priv.h" | |
79ca2770 | 27 | |
7a014a87 BS |
28 | #include <subdev/gpio.h> |
29 | ||
878da15a | 30 | #include <nvif/event.h> |
7a014a87 | 31 | |
7a014a87 | 32 | void |
981a8162 | 33 | nvkm_conn_del(struct nvkm_conn **pconn) |
7a014a87 | 34 | { |
981a8162 | 35 | struct nvkm_conn *conn = *pconn; |
f2c906fc | 36 | if (conn) { |
f2c906fc BS |
37 | kfree(*pconn); |
38 | *pconn = NULL; | |
39 | } | |
7a014a87 BS |
40 | } |
41 | ||
f2c906fc | 42 | static void |
981a8162 BS |
43 | nvkm_conn_ctor(struct nvkm_disp *disp, int index, struct nvbios_connE *info, |
44 | struct nvkm_conn *conn) | |
7a014a87 BS |
45 | { |
46 | static const u8 hpd[] = { 0x07, 0x08, 0x51, 0x52, 0x5e, 0x5f, 0x60 }; | |
f2c906fc | 47 | struct nvkm_gpio *gpio = disp->engine.subdev.device->gpio; |
7a014a87 BS |
48 | struct dcb_gpio_func func; |
49 | int ret; | |
50 | ||
f2c906fc | 51 | conn->disp = disp; |
7a014a87 | 52 | conn->index = index; |
f2c906fc | 53 | conn->info = *info; |
32dd9236 | 54 | conn->info.hpd = DCB_GPIO_UNUSED; |
7a014a87 | 55 | |
f2c906fc BS |
56 | CONN_DBG(conn, "type %02x loc %d hpd %02x dp %x di %x sr %x lcdid %x", |
57 | info->type, info->location, info->hpd, info->dp, | |
58 | info->di, info->sr, info->lcdid); | |
7a014a87 BS |
59 | |
60 | if ((info->hpd = ffs(info->hpd))) { | |
61 | if (--info->hpd >= ARRAY_SIZE(hpd)) { | |
f2c906fc BS |
62 | CONN_ERR(conn, "hpd %02x unknown", info->hpd); |
63 | return; | |
7a014a87 BS |
64 | } |
65 | info->hpd = hpd[info->hpd]; | |
66 | ||
2ea7249f | 67 | ret = nvkm_gpio_find(gpio, 0, info->hpd, DCB_GPIO_UNUSED, &func); |
7a014a87 | 68 | if (ret) { |
32dd9236 | 69 | CONN_ERR(conn, "func %02x lookup failed, %d", info->hpd, ret); |
f2c906fc | 70 | return; |
7a014a87 BS |
71 | } |
72 | ||
32dd9236 | 73 | conn->info.hpd = func.line; |
7a014a87 | 74 | } |
7a014a87 BS |
75 | } |
76 | ||
77 | int | |
981a8162 BS |
78 | nvkm_conn_new(struct nvkm_disp *disp, int index, struct nvbios_connE *info, |
79 | struct nvkm_conn **pconn) | |
7a014a87 | 80 | { |
f2c906fc BS |
81 | if (!(*pconn = kzalloc(sizeof(**pconn), GFP_KERNEL))) |
82 | return -ENOMEM; | |
981a8162 | 83 | nvkm_conn_ctor(disp, index, info, *pconn); |
7a014a87 BS |
84 | return 0; |
85 | } |