Martin Peres | eeb7a50 | 2011-11-07 23:38:50 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2010 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 | */ |
| 24 | |
| 25 | #ifndef __NOUVEAU_HWSQ_H__ |
| 26 | #define __NOUVEAU_HWSQ_H__ |
| 27 | |
| 28 | struct hwsq_ucode { |
| 29 | u8 data[0x200]; |
| 30 | union { |
| 31 | u8 *u08; |
| 32 | u16 *u16; |
| 33 | u32 *u32; |
| 34 | } ptr; |
| 35 | u16 len; |
| 36 | |
| 37 | u32 reg; |
| 38 | u32 val; |
| 39 | }; |
| 40 | |
| 41 | static inline void |
| 42 | hwsq_init(struct hwsq_ucode *hwsq) |
| 43 | { |
| 44 | hwsq->ptr.u08 = hwsq->data; |
| 45 | hwsq->reg = 0xffffffff; |
| 46 | hwsq->val = 0xffffffff; |
| 47 | } |
| 48 | |
| 49 | static inline void |
| 50 | hwsq_fini(struct hwsq_ucode *hwsq) |
| 51 | { |
| 52 | do { |
| 53 | *hwsq->ptr.u08++ = 0x7f; |
| 54 | hwsq->len = hwsq->ptr.u08 - hwsq->data; |
| 55 | } while (hwsq->len & 3); |
| 56 | hwsq->ptr.u08 = hwsq->data; |
| 57 | } |
| 58 | |
| 59 | static inline void |
Ben Skeggs | c8b9641 | 2011-11-09 20:22:25 +1000 | [diff] [blame] | 60 | hwsq_usec(struct hwsq_ucode *hwsq, u8 usec) |
Martin Peres | eeb7a50 | 2011-11-07 23:38:50 +0100 | [diff] [blame] | 61 | { |
Ben Skeggs | c8b9641 | 2011-11-09 20:22:25 +1000 | [diff] [blame] | 62 | u32 shift = 0; |
| 63 | while (usec & ~3) { |
| 64 | usec >>= 2; |
| 65 | shift++; |
| 66 | } |
| 67 | |
| 68 | *hwsq->ptr.u08++ = (shift << 2) | usec; |
| 69 | } |
| 70 | |
| 71 | static inline void |
| 72 | hwsq_setf(struct hwsq_ucode *hwsq, u8 flag, int val) |
| 73 | { |
| 74 | flag += 0x80; |
| 75 | if (val >= 0) |
| 76 | flag += 0x20; |
| 77 | if (val >= 1) |
| 78 | flag += 0x20; |
| 79 | *hwsq->ptr.u08++ = flag; |
Martin Peres | eeb7a50 | 2011-11-07 23:38:50 +0100 | [diff] [blame] | 80 | } |
| 81 | |
| 82 | static inline void |
| 83 | hwsq_op5f(struct hwsq_ucode *hwsq, u8 v0, u8 v1) |
| 84 | { |
| 85 | *hwsq->ptr.u08++ = 0x5f; |
| 86 | *hwsq->ptr.u08++ = v0; |
| 87 | *hwsq->ptr.u08++ = v1; |
| 88 | } |
| 89 | |
| 90 | static inline void |
| 91 | hwsq_wr32(struct hwsq_ucode *hwsq, u32 reg, u32 val) |
| 92 | { |
| 93 | if (val != hwsq->val) { |
| 94 | if ((val & 0xffff0000) == (hwsq->val & 0xffff0000)) { |
| 95 | *hwsq->ptr.u08++ = 0x42; |
| 96 | *hwsq->ptr.u16++ = (val & 0x0000ffff); |
| 97 | } else { |
| 98 | *hwsq->ptr.u08++ = 0xe2; |
| 99 | *hwsq->ptr.u32++ = val; |
| 100 | } |
| 101 | |
| 102 | hwsq->val = val; |
| 103 | } |
| 104 | |
| 105 | if ((reg & 0xffff0000) == (hwsq->reg & 0xffff0000)) { |
| 106 | *hwsq->ptr.u08++ = 0x40; |
| 107 | *hwsq->ptr.u16++ = (reg & 0x0000ffff); |
| 108 | } else { |
| 109 | *hwsq->ptr.u08++ = 0xe0; |
| 110 | *hwsq->ptr.u32++ = reg; |
| 111 | } |
| 112 | hwsq->reg = reg; |
| 113 | } |
| 114 | |
| 115 | #endif |