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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
2 * Copyright 2012 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
26 #include <core/class.h>
28 #include <subdev/bios.h>
29 #include <subdev/bios/dcb.h>
30 #include <subdev/timer.h>
35 nv50_dac_power(struct nv50_disp_priv
*priv
, int or, u32 data
)
37 const u32 stat
= (data
& NV50_DISP_DAC_PWR_HSYNC
) |
38 (data
& NV50_DISP_DAC_PWR_VSYNC
) |
39 (data
& NV50_DISP_DAC_PWR_DATA
) |
40 (data
& NV50_DISP_DAC_PWR_STATE
);
41 const u32 doff
= (or * 0x800);
42 nv_wait(priv
, 0x61a004 + doff
, 0x80000000, 0x00000000);
43 nv_mask(priv
, 0x61a004 + doff
, 0xc000007f, 0x80000000 | stat
);
44 nv_wait(priv
, 0x61a004 + doff
, 0x80000000, 0x00000000);
49 nv50_dac_sense(struct nv50_disp_priv
*priv
, int or, u32 loadval
)
51 const u32 doff
= (or * 0x800);
53 nv_mask(priv
, 0x61a004 + doff
, 0x807f0000, 0x80150000);
54 nv_wait(priv
, 0x61a004 + doff
, 0x80000000, 0x00000000);
55 nv_wr32(priv
, 0x61a00c + doff
, 0x00100000 | loadval
);
57 nv_wr32(priv
, 0x61a00c + doff
, 0x80000000);
58 load
= (nv_rd32(priv
, 0x61a00c + doff
) & 0x38000000) >> 27;
59 nv_wr32(priv
, 0x61a00c + doff
, 0x00000000);
60 nv_mask(priv
, 0x61a004 + doff
, 0x807f0000, 0x80550000);
61 nv_wait(priv
, 0x61a004 + doff
, 0x80000000, 0x00000000);
66 nv50_dac_mthd(struct nouveau_object
*object
, u32 mthd
, void *args
, u32 size
)
68 struct nv50_disp_priv
*priv
= (void *)object
->engine
;
69 const u8
or = (mthd
& NV50_DISP_DAC_MTHD_OR
);
73 if (size
< sizeof(u32
))
76 switch (mthd
& ~0x3f) {
77 case NV50_DISP_DAC_PWR
:
78 ret
= priv
->dac
.power(priv
, or, data
[0]);
80 case NV50_DISP_DAC_LOAD
:
81 ret
= priv
->dac
.sense(priv
, or, data
[0]);