1 #ifndef __INCLUDE_ATMEL_SSC_H
2 #define __INCLUDE_ATMEL_SSC_H
4 #include <linux/platform_device.h>
5 #include <linux/list.h>
8 struct atmel_ssc_platform_data {
13 struct list_head list;
16 struct platform_device *pdev;
17 struct atmel_ssc_platform_data *pdata;
23 struct ssc_device * __must_check ssc_request(unsigned int ssc_num);
24 void ssc_free(struct ssc_device *ssc);
26 /* SSC register offsets */
28 /* SSC Control Register */
29 #define SSC_CR 0x00000000
30 #define SSC_CR_RXDIS_SIZE 1
31 #define SSC_CR_RXDIS_OFFSET 1
32 #define SSC_CR_RXEN_SIZE 1
33 #define SSC_CR_RXEN_OFFSET 0
34 #define SSC_CR_SWRST_SIZE 1
35 #define SSC_CR_SWRST_OFFSET 15
36 #define SSC_CR_TXDIS_SIZE 1
37 #define SSC_CR_TXDIS_OFFSET 9
38 #define SSC_CR_TXEN_SIZE 1
39 #define SSC_CR_TXEN_OFFSET 8
41 /* SSC Clock Mode Register */
42 #define SSC_CMR 0x00000004
43 #define SSC_CMR_DIV_SIZE 12
44 #define SSC_CMR_DIV_OFFSET 0
46 /* SSC Receive Clock Mode Register */
47 #define SSC_RCMR 0x00000010
48 #define SSC_RCMR_CKG_SIZE 2
49 #define SSC_RCMR_CKG_OFFSET 6
50 #define SSC_RCMR_CKI_SIZE 1
51 #define SSC_RCMR_CKI_OFFSET 5
52 #define SSC_RCMR_CKO_SIZE 3
53 #define SSC_RCMR_CKO_OFFSET 2
54 #define SSC_RCMR_CKS_SIZE 2
55 #define SSC_RCMR_CKS_OFFSET 0
56 #define SSC_RCMR_PERIOD_SIZE 8
57 #define SSC_RCMR_PERIOD_OFFSET 24
58 #define SSC_RCMR_START_SIZE 4
59 #define SSC_RCMR_START_OFFSET 8
60 #define SSC_RCMR_STOP_SIZE 1
61 #define SSC_RCMR_STOP_OFFSET 12
62 #define SSC_RCMR_STTDLY_SIZE 8
63 #define SSC_RCMR_STTDLY_OFFSET 16
65 /* SSC Receive Frame Mode Register */
66 #define SSC_RFMR 0x00000014
67 #define SSC_RFMR_DATLEN_SIZE 5
68 #define SSC_RFMR_DATLEN_OFFSET 0
69 #define SSC_RFMR_DATNB_SIZE 4
70 #define SSC_RFMR_DATNB_OFFSET 8
71 #define SSC_RFMR_FSEDGE_SIZE 1
72 #define SSC_RFMR_FSEDGE_OFFSET 24
73 #define SSC_RFMR_FSLEN_SIZE 4
74 #define SSC_RFMR_FSLEN_OFFSET 16
75 #define SSC_RFMR_FSOS_SIZE 4
76 #define SSC_RFMR_FSOS_OFFSET 20
77 #define SSC_RFMR_LOOP_SIZE 1
78 #define SSC_RFMR_LOOP_OFFSET 5
79 #define SSC_RFMR_MSBF_SIZE 1
80 #define SSC_RFMR_MSBF_OFFSET 7
82 /* SSC Transmit Clock Mode Register */
83 #define SSC_TCMR 0x00000018
84 #define SSC_TCMR_CKG_SIZE 2
85 #define SSC_TCMR_CKG_OFFSET 6
86 #define SSC_TCMR_CKI_SIZE 1
87 #define SSC_TCMR_CKI_OFFSET 5
88 #define SSC_TCMR_CKO_SIZE 3
89 #define SSC_TCMR_CKO_OFFSET 2
90 #define SSC_TCMR_CKS_SIZE 2
91 #define SSC_TCMR_CKS_OFFSET 0
92 #define SSC_TCMR_PERIOD_SIZE 8
93 #define SSC_TCMR_PERIOD_OFFSET 24
94 #define SSC_TCMR_START_SIZE 4
95 #define SSC_TCMR_START_OFFSET 8
96 #define SSC_TCMR_STTDLY_SIZE 8
97 #define SSC_TCMR_STTDLY_OFFSET 16
99 /* SSC Transmit Frame Mode Register */
100 #define SSC_TFMR 0x0000001c
101 #define SSC_TFMR_DATDEF_SIZE 1
102 #define SSC_TFMR_DATDEF_OFFSET 5
103 #define SSC_TFMR_DATLEN_SIZE 5
104 #define SSC_TFMR_DATLEN_OFFSET 0
105 #define SSC_TFMR_DATNB_SIZE 4
106 #define SSC_TFMR_DATNB_OFFSET 8
107 #define SSC_TFMR_FSDEN_SIZE 1
108 #define SSC_TFMR_FSDEN_OFFSET 23
109 #define SSC_TFMR_FSEDGE_SIZE 1
110 #define SSC_TFMR_FSEDGE_OFFSET 24
111 #define SSC_TFMR_FSLEN_SIZE 4
112 #define SSC_TFMR_FSLEN_OFFSET 16
113 #define SSC_TFMR_FSOS_SIZE 3
114 #define SSC_TFMR_FSOS_OFFSET 20
115 #define SSC_TFMR_MSBF_SIZE 1
116 #define SSC_TFMR_MSBF_OFFSET 7
118 /* SSC Receive Hold Register */
119 #define SSC_RHR 0x00000020
120 #define SSC_RHR_RDAT_SIZE 32
121 #define SSC_RHR_RDAT_OFFSET 0
123 /* SSC Transmit Hold Register */
124 #define SSC_THR 0x00000024
125 #define SSC_THR_TDAT_SIZE 32
126 #define SSC_THR_TDAT_OFFSET 0
128 /* SSC Receive Sync. Holding Register */
129 #define SSC_RSHR 0x00000030
130 #define SSC_RSHR_RSDAT_SIZE 16
131 #define SSC_RSHR_RSDAT_OFFSET 0
133 /* SSC Transmit Sync. Holding Register */
134 #define SSC_TSHR 0x00000034
135 #define SSC_TSHR_TSDAT_SIZE 16
136 #define SSC_TSHR_RSDAT_OFFSET 0
138 /* SSC Receive Compare 0 Register */
139 #define SSC_RC0R 0x00000038
140 #define SSC_RC0R_CP0_SIZE 16
141 #define SSC_RC0R_CP0_OFFSET 0
143 /* SSC Receive Compare 1 Register */
144 #define SSC_RC1R 0x0000003c
145 #define SSC_RC1R_CP1_SIZE 16
146 #define SSC_RC1R_CP1_OFFSET 0
148 /* SSC Status Register */
149 #define SSC_SR 0x00000040
150 #define SSC_SR_CP0_SIZE 1
151 #define SSC_SR_CP0_OFFSET 8
152 #define SSC_SR_CP1_SIZE 1
153 #define SSC_SR_CP1_OFFSET 9
154 #define SSC_SR_ENDRX_SIZE 1
155 #define SSC_SR_ENDRX_OFFSET 6
156 #define SSC_SR_ENDTX_SIZE 1
157 #define SSC_SR_ENDTX_OFFSET 2
158 #define SSC_SR_OVRUN_SIZE 1
159 #define SSC_SR_OVRUN_OFFSET 5
160 #define SSC_SR_RXBUFF_SIZE 1
161 #define SSC_SR_RXBUFF_OFFSET 7
162 #define SSC_SR_RXEN_SIZE 1
163 #define SSC_SR_RXEN_OFFSET 17
164 #define SSC_SR_RXRDY_SIZE 1
165 #define SSC_SR_RXRDY_OFFSET 4
166 #define SSC_SR_RXSYN_SIZE 1
167 #define SSC_SR_RXSYN_OFFSET 11
168 #define SSC_SR_TXBUFE_SIZE 1
169 #define SSC_SR_TXBUFE_OFFSET 3
170 #define SSC_SR_TXEMPTY_SIZE 1
171 #define SSC_SR_TXEMPTY_OFFSET 1
172 #define SSC_SR_TXEN_SIZE 1
173 #define SSC_SR_TXEN_OFFSET 16
174 #define SSC_SR_TXRDY_SIZE 1
175 #define SSC_SR_TXRDY_OFFSET 0
176 #define SSC_SR_TXSYN_SIZE 1
177 #define SSC_SR_TXSYN_OFFSET 10
179 /* SSC Interrupt Enable Register */
180 #define SSC_IER 0x00000044
181 #define SSC_IER_CP0_SIZE 1
182 #define SSC_IER_CP0_OFFSET 8
183 #define SSC_IER_CP1_SIZE 1
184 #define SSC_IER_CP1_OFFSET 9
185 #define SSC_IER_ENDRX_SIZE 1
186 #define SSC_IER_ENDRX_OFFSET 6
187 #define SSC_IER_ENDTX_SIZE 1
188 #define SSC_IER_ENDTX_OFFSET 2
189 #define SSC_IER_OVRUN_SIZE 1
190 #define SSC_IER_OVRUN_OFFSET 5
191 #define SSC_IER_RXBUFF_SIZE 1
192 #define SSC_IER_RXBUFF_OFFSET 7
193 #define SSC_IER_RXRDY_SIZE 1
194 #define SSC_IER_RXRDY_OFFSET 4
195 #define SSC_IER_RXSYN_SIZE 1
196 #define SSC_IER_RXSYN_OFFSET 11
197 #define SSC_IER_TXBUFE_SIZE 1
198 #define SSC_IER_TXBUFE_OFFSET 3
199 #define SSC_IER_TXEMPTY_SIZE 1
200 #define SSC_IER_TXEMPTY_OFFSET 1
201 #define SSC_IER_TXRDY_SIZE 1
202 #define SSC_IER_TXRDY_OFFSET 0
203 #define SSC_IER_TXSYN_SIZE 1
204 #define SSC_IER_TXSYN_OFFSET 10
206 /* SSC Interrupt Disable Register */
207 #define SSC_IDR 0x00000048
208 #define SSC_IDR_CP0_SIZE 1
209 #define SSC_IDR_CP0_OFFSET 8
210 #define SSC_IDR_CP1_SIZE 1
211 #define SSC_IDR_CP1_OFFSET 9
212 #define SSC_IDR_ENDRX_SIZE 1
213 #define SSC_IDR_ENDRX_OFFSET 6
214 #define SSC_IDR_ENDTX_SIZE 1
215 #define SSC_IDR_ENDTX_OFFSET 2
216 #define SSC_IDR_OVRUN_SIZE 1
217 #define SSC_IDR_OVRUN_OFFSET 5
218 #define SSC_IDR_RXBUFF_SIZE 1
219 #define SSC_IDR_RXBUFF_OFFSET 7
220 #define SSC_IDR_RXRDY_SIZE 1
221 #define SSC_IDR_RXRDY_OFFSET 4
222 #define SSC_IDR_RXSYN_SIZE 1
223 #define SSC_IDR_RXSYN_OFFSET 11
224 #define SSC_IDR_TXBUFE_SIZE 1
225 #define SSC_IDR_TXBUFE_OFFSET 3
226 #define SSC_IDR_TXEMPTY_SIZE 1
227 #define SSC_IDR_TXEMPTY_OFFSET 1
228 #define SSC_IDR_TXRDY_SIZE 1
229 #define SSC_IDR_TXRDY_OFFSET 0
230 #define SSC_IDR_TXSYN_SIZE 1
231 #define SSC_IDR_TXSYN_OFFSET 10
233 /* SSC Interrupt Mask Register */
234 #define SSC_IMR 0x0000004c
235 #define SSC_IMR_CP0_SIZE 1
236 #define SSC_IMR_CP0_OFFSET 8
237 #define SSC_IMR_CP1_SIZE 1
238 #define SSC_IMR_CP1_OFFSET 9
239 #define SSC_IMR_ENDRX_SIZE 1
240 #define SSC_IMR_ENDRX_OFFSET 6
241 #define SSC_IMR_ENDTX_SIZE 1
242 #define SSC_IMR_ENDTX_OFFSET 2
243 #define SSC_IMR_OVRUN_SIZE 1
244 #define SSC_IMR_OVRUN_OFFSET 5
245 #define SSC_IMR_RXBUFF_SIZE 1
246 #define SSC_IMR_RXBUFF_OFFSET 7
247 #define SSC_IMR_RXRDY_SIZE 1
248 #define SSC_IMR_RXRDY_OFFSET 4
249 #define SSC_IMR_RXSYN_SIZE 1
250 #define SSC_IMR_RXSYN_OFFSET 11
251 #define SSC_IMR_TXBUFE_SIZE 1
252 #define SSC_IMR_TXBUFE_OFFSET 3
253 #define SSC_IMR_TXEMPTY_SIZE 1
254 #define SSC_IMR_TXEMPTY_OFFSET 1
255 #define SSC_IMR_TXRDY_SIZE 1
256 #define SSC_IMR_TXRDY_OFFSET 0
257 #define SSC_IMR_TXSYN_SIZE 1
258 #define SSC_IMR_TXSYN_OFFSET 10
260 /* SSC PDC Receive Pointer Register */
261 #define SSC_PDC_RPR 0x00000100
263 /* SSC PDC Receive Counter Register */
264 #define SSC_PDC_RCR 0x00000104
266 /* SSC PDC Transmit Pointer Register */
267 #define SSC_PDC_TPR 0x00000108
269 /* SSC PDC Receive Next Pointer Register */
270 #define SSC_PDC_RNPR 0x00000110
272 /* SSC PDC Receive Next Counter Register */
273 #define SSC_PDC_RNCR 0x00000114
275 /* SSC PDC Transmit Counter Register */
276 #define SSC_PDC_TCR 0x0000010c
278 /* SSC PDC Transmit Next Pointer Register */
279 #define SSC_PDC_TNPR 0x00000118
281 /* SSC PDC Transmit Next Counter Register */
282 #define SSC_PDC_TNCR 0x0000011c
284 /* SSC PDC Transfer Control Register */
285 #define SSC_PDC_PTCR 0x00000120
286 #define SSC_PDC_PTCR_RXTDIS_SIZE 1
287 #define SSC_PDC_PTCR_RXTDIS_OFFSET 1
288 #define SSC_PDC_PTCR_RXTEN_SIZE 1
289 #define SSC_PDC_PTCR_RXTEN_OFFSET 0
290 #define SSC_PDC_PTCR_TXTDIS_SIZE 1
291 #define SSC_PDC_PTCR_TXTDIS_OFFSET 9
292 #define SSC_PDC_PTCR_TXTEN_SIZE 1
293 #define SSC_PDC_PTCR_TXTEN_OFFSET 8
295 /* SSC PDC Transfer Status Register */
296 #define SSC_PDC_PTSR 0x00000124
297 #define SSC_PDC_PTSR_RXTEN_SIZE 1
298 #define SSC_PDC_PTSR_RXTEN_OFFSET 0
299 #define SSC_PDC_PTSR_TXTEN_SIZE 1
300 #define SSC_PDC_PTSR_TXTEN_OFFSET 8
302 /* Bit manipulation macros */
303 #define SSC_BIT(name) \
304 (1 << SSC_##name##_OFFSET)
305 #define SSC_BF(name, value) \
306 (((value) & ((1 << SSC_##name##_SIZE) - 1)) \
307 << SSC_##name##_OFFSET)
308 #define SSC_BFEXT(name, value) \
309 (((value) >> SSC_##name##_OFFSET) \
310 & ((1 << SSC_##name##_SIZE) - 1))
311 #define SSC_BFINS(name, value, old) \
312 (((old) & ~(((1 << SSC_##name##_SIZE) - 1) \
313 << SSC_##name##_OFFSET)) | SSC_BF(name, value))
315 /* Register access macros */
316 #define ssc_readl(base, reg) __raw_readl(base + SSC_##reg)
317 #define ssc_writel(base, reg, value) __raw_writel((value), base + SSC_##reg)
319 #endif /* __INCLUDE_ATMEL_SSC_H */