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Diffstat (limited to 'arch/arm/plat-samsung/s3c-dma-ops.c')
-rw-r--r--arch/arm/plat-samsung/s3c-dma-ops.c39
1 files changed, 22 insertions, 17 deletions
diff --git a/arch/arm/plat-samsung/s3c-dma-ops.c b/arch/arm/plat-samsung/s3c-dma-ops.c
index 781494912827..f99448c48d30 100644
--- a/arch/arm/plat-samsung/s3c-dma-ops.c
+++ b/arch/arm/plat-samsung/s3c-dma-ops.c
@@ -36,30 +36,26 @@ static void s3c_dma_cb(struct s3c2410_dma_chan *channel, void *param,
36} 36}
37 37
38static unsigned s3c_dma_request(enum dma_ch dma_ch, 38static unsigned s3c_dma_request(enum dma_ch dma_ch,
39 struct samsung_dma_info *info) 39 struct samsung_dma_req *param)
40{ 40{
41 struct cb_data *data; 41 struct cb_data *data;
42 42
43 if (s3c2410_dma_request(dma_ch, info->client, NULL) < 0) { 43 if (s3c2410_dma_request(dma_ch, param->client, NULL) < 0) {
44 s3c2410_dma_free(dma_ch, info->client); 44 s3c2410_dma_free(dma_ch, param->client);
45 return 0; 45 return 0;
46 } 46 }
47 47
48 if (param->cap == DMA_CYCLIC)
49 s3c2410_dma_setflags(dma_ch, S3C2410_DMAF_CIRCULAR);
50
48 data = kzalloc(sizeof(struct cb_data), GFP_KERNEL); 51 data = kzalloc(sizeof(struct cb_data), GFP_KERNEL);
49 data->ch = dma_ch; 52 data->ch = dma_ch;
50 list_add_tail(&data->node, &dma_list); 53 list_add_tail(&data->node, &dma_list);
51 54
52 s3c2410_dma_devconfig(dma_ch, info->direction, info->fifo);
53
54 if (info->cap == DMA_CYCLIC)
55 s3c2410_dma_setflags(dma_ch, S3C2410_DMAF_CIRCULAR);
56
57 s3c2410_dma_config(dma_ch, info->width);
58
59 return (unsigned)dma_ch; 55 return (unsigned)dma_ch;
60} 56}
61 57
62static int s3c_dma_release(unsigned ch, struct s3c2410_dma_client *client) 58static int s3c_dma_release(unsigned ch, void *param)
63{ 59{
64 struct cb_data *data; 60 struct cb_data *data;
65 61
@@ -68,16 +64,24 @@ static int s3c_dma_release(unsigned ch, struct s3c2410_dma_client *client)
68 break; 64 break;
69 list_del(&data->node); 65 list_del(&data->node);
70 66
71 s3c2410_dma_free(ch, client); 67 s3c2410_dma_free(ch, param);
72 kfree(data); 68 kfree(data);
73 69
74 return 0; 70 return 0;
75} 71}
76 72
77static int s3c_dma_prepare(unsigned ch, struct samsung_dma_prep_info *info) 73static int s3c_dma_config(unsigned ch, struct samsung_dma_config *param)
74{
75 s3c2410_dma_devconfig(ch, param->direction, param->fifo);
76 s3c2410_dma_config(ch, param->width);
77
78 return 0;
79}
80
81static int s3c_dma_prepare(unsigned ch, struct samsung_dma_prep *param)
78{ 82{
79 struct cb_data *data; 83 struct cb_data *data;
80 int len = (info->cap == DMA_CYCLIC) ? info->period : info->len; 84 int len = (param->cap == DMA_CYCLIC) ? param->period : param->len;
81 85
82 list_for_each_entry(data, &dma_list, node) 86 list_for_each_entry(data, &dma_list, node)
83 if (data->ch == ch) 87 if (data->ch == ch)
@@ -85,11 +89,11 @@ static int s3c_dma_prepare(unsigned ch, struct samsung_dma_prep_info *info)
85 89
86 if (!data->fp) { 90 if (!data->fp) {
87 s3c2410_dma_set_buffdone_fn(ch, s3c_dma_cb); 91 s3c2410_dma_set_buffdone_fn(ch, s3c_dma_cb);
88 data->fp = info->fp; 92 data->fp = param->fp;
89 data->fp_param = info->fp_param; 93 data->fp_param = param->fp_param;
90 } 94 }
91 95
92 s3c2410_dma_enqueue(ch, (void *)data, info->buf, len); 96 s3c2410_dma_enqueue(ch, (void *)data, param->buf, len);
93 97
94 return 0; 98 return 0;
95} 99}
@@ -117,6 +121,7 @@ static inline int s3c_dma_stop(unsigned ch)
117static struct samsung_dma_ops s3c_dma_ops = { 121static struct samsung_dma_ops s3c_dma_ops = {
118 .request = s3c_dma_request, 122 .request = s3c_dma_request,
119 .release = s3c_dma_release, 123 .release = s3c_dma_release,
124 .config = s3c_dma_config,
120 .prepare = s3c_dma_prepare, 125 .prepare = s3c_dma_prepare,
121 .trigger = s3c_dma_trigger, 126 .trigger = s3c_dma_trigger,
122 .started = s3c_dma_started, 127 .started = s3c_dma_started,