Blackfin arch: get oprofile work for user space
[linux-2.6.git] / arch / blackfin / mach-bf548 / dma.c
1 /*
2  * File:         arch/blackfin/mach-bf548/dma.c
3  * Based on:
4  * Author:
5  *
6  * Created:
7  * Description:  This file contains the simple DMA Implementation for Blackfin
8  *
9  * Modified:
10  *               Copyright 2004-2008 Analog Devices Inc.
11  *
12  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
13  *
14  * This program is free software; you can redistribute it and/or modify
15  * it under the terms of the GNU General Public License as published by
16  * the Free Software Foundation; either version 2 of the License, or
17  * (at your option) any later version.
18  *
19  * This program is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
22  * GNU General Public License for more details.
23  *
24  * You should have received a copy of the GNU General Public License
25  * along with this program; if not, see the file COPYING, or write
26  * to the Free Software Foundation, Inc.,
27  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
28  */
29
30 #include <linux/module.h>
31
32 #include <asm/blackfin.h>
33 #include <asm/dma.h>
34
35 struct dma_register *dma_io_base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
36         (struct dma_register *) DMA0_NEXT_DESC_PTR,
37         (struct dma_register *) DMA1_NEXT_DESC_PTR,
38         (struct dma_register *) DMA2_NEXT_DESC_PTR,
39         (struct dma_register *) DMA3_NEXT_DESC_PTR,
40         (struct dma_register *) DMA4_NEXT_DESC_PTR,
41         (struct dma_register *) DMA5_NEXT_DESC_PTR,
42         (struct dma_register *) DMA6_NEXT_DESC_PTR,
43         (struct dma_register *) DMA7_NEXT_DESC_PTR,
44         (struct dma_register *) DMA8_NEXT_DESC_PTR,
45         (struct dma_register *) DMA9_NEXT_DESC_PTR,
46         (struct dma_register *) DMA10_NEXT_DESC_PTR,
47         (struct dma_register *) DMA11_NEXT_DESC_PTR,
48         (struct dma_register *) DMA12_NEXT_DESC_PTR,
49         (struct dma_register *) DMA13_NEXT_DESC_PTR,
50         (struct dma_register *) DMA14_NEXT_DESC_PTR,
51         (struct dma_register *) DMA15_NEXT_DESC_PTR,
52         (struct dma_register *) DMA16_NEXT_DESC_PTR,
53         (struct dma_register *) DMA17_NEXT_DESC_PTR,
54         (struct dma_register *) DMA18_NEXT_DESC_PTR,
55         (struct dma_register *) DMA19_NEXT_DESC_PTR,
56         (struct dma_register *) DMA20_NEXT_DESC_PTR,
57         (struct dma_register *) DMA21_NEXT_DESC_PTR,
58         (struct dma_register *) DMA22_NEXT_DESC_PTR,
59         (struct dma_register *) DMA23_NEXT_DESC_PTR,
60         (struct dma_register *) MDMA_D0_NEXT_DESC_PTR,
61         (struct dma_register *) MDMA_S0_NEXT_DESC_PTR,
62         (struct dma_register *) MDMA_D1_NEXT_DESC_PTR,
63         (struct dma_register *) MDMA_S1_NEXT_DESC_PTR,
64         (struct dma_register *) MDMA_D2_NEXT_DESC_PTR,
65         (struct dma_register *) MDMA_S2_NEXT_DESC_PTR,
66         (struct dma_register *) MDMA_D3_NEXT_DESC_PTR,
67         (struct dma_register *) MDMA_S3_NEXT_DESC_PTR,
68 };
69 EXPORT_SYMBOL(dma_io_base_addr);
70
71 int channel2irq(unsigned int channel)
72 {
73         int ret_irq = -1;
74
75         switch (channel) {
76         case CH_SPORT0_RX:
77                 ret_irq = IRQ_SPORT0_RX;
78                 break;
79         case CH_SPORT0_TX:
80                 ret_irq = IRQ_SPORT0_TX;
81                 break;
82         case CH_SPORT1_RX:
83                 ret_irq = IRQ_SPORT1_RX;
84                 break;
85         case CH_SPORT1_TX:
86                 ret_irq = IRQ_SPORT1_TX;
87         case CH_SPI0:
88                 ret_irq = IRQ_SPI0;
89                 break;
90         case CH_SPI1:
91                 ret_irq = IRQ_SPI1;
92                 break;
93         case CH_UART0_RX:
94                 ret_irq = IRQ_UART_RX;
95                 break;
96         case CH_UART0_TX:
97                 ret_irq = IRQ_UART_TX;
98                 break;
99         case CH_UART1_RX:
100                 ret_irq = IRQ_UART_RX;
101                 break;
102         case CH_UART1_TX:
103                 ret_irq = IRQ_UART_TX;
104                 break;
105         case CH_EPPI0:
106                 ret_irq = IRQ_EPPI0;
107                 break;
108         case CH_EPPI1:
109                 ret_irq = IRQ_EPPI1;
110                 break;
111         case CH_EPPI2:
112                 ret_irq = IRQ_EPPI2;
113                 break;
114         case CH_PIXC_IMAGE:
115                 ret_irq = IRQ_PIXC_IN0;
116                 break;
117         case CH_PIXC_OVERLAY:
118                 ret_irq = IRQ_PIXC_IN1;
119                 break;
120         case CH_PIXC_OUTPUT:
121                 ret_irq = IRQ_PIXC_OUT;
122                 break;
123         case CH_SPORT2_RX:
124                 ret_irq = IRQ_SPORT2_RX;
125                 break;
126         case CH_SPORT2_TX:
127                 ret_irq = IRQ_SPORT2_TX;
128                 break;
129         case CH_SPORT3_RX:
130                 ret_irq = IRQ_SPORT3_RX;
131                 break;
132         case CH_SPORT3_TX:
133                 ret_irq = IRQ_SPORT3_TX;
134                 break;
135         case CH_SDH:
136                 ret_irq = IRQ_SDH;
137                 break;
138         case CH_SPI2:
139                 ret_irq = IRQ_SPI2;
140                 break;
141         case CH_MEM_STREAM0_SRC:
142         case CH_MEM_STREAM0_DEST:
143                 ret_irq = IRQ_MDMAS0;
144                 break;
145         case CH_MEM_STREAM1_SRC:
146         case CH_MEM_STREAM1_DEST:
147                 ret_irq = IRQ_MDMAS1;
148                 break;
149         case CH_MEM_STREAM2_SRC:
150         case CH_MEM_STREAM2_DEST:
151                 ret_irq = IRQ_MDMAS2;
152                 break;
153         case CH_MEM_STREAM3_SRC:
154         case CH_MEM_STREAM3_DEST:
155                 ret_irq = IRQ_MDMAS3;
156                 break;
157         }
158         return ret_irq;
159 }