1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Driver for Cirrus Logic CS4281 based PCI soundcard |
4 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz>, |
5 | */ |
6 | |
7 | #include <linux/io.h> |
8 | #include <linux/delay.h> |
9 | #include <linux/interrupt.h> |
10 | #include <linux/init.h> |
11 | #include <linux/pci.h> |
12 | #include <linux/slab.h> |
13 | #include <linux/gameport.h> |
14 | #include <linux/module.h> |
15 | #include <sound/core.h> |
16 | #include <sound/control.h> |
17 | #include <sound/pcm.h> |
18 | #include <sound/rawmidi.h> |
19 | #include <sound/ac97_codec.h> |
20 | #include <sound/tlv.h> |
21 | #include <sound/opl3.h> |
22 | #include <sound/initval.h> |
23 | |
24 | |
25 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>" ); |
26 | MODULE_DESCRIPTION("Cirrus Logic CS4281" ); |
27 | MODULE_LICENSE("GPL" ); |
28 | |
29 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
30 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
31 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */ |
32 | static bool dual_codec[SNDRV_CARDS]; /* dual codec */ |
33 | |
34 | module_param_array(index, int, NULL, 0444); |
35 | MODULE_PARM_DESC(index, "Index value for CS4281 soundcard." ); |
36 | module_param_array(id, charp, NULL, 0444); |
37 | MODULE_PARM_DESC(id, "ID string for CS4281 soundcard." ); |
38 | module_param_array(enable, bool, NULL, 0444); |
39 | MODULE_PARM_DESC(enable, "Enable CS4281 soundcard." ); |
40 | module_param_array(dual_codec, bool, NULL, 0444); |
41 | MODULE_PARM_DESC(dual_codec, "Secondary Codec ID (0 = disabled)." ); |
42 | |
43 | /* |
44 | * Direct registers |
45 | */ |
46 | |
47 | #define CS4281_BA0_SIZE 0x1000 |
48 | #define CS4281_BA1_SIZE 0x10000 |
49 | |
50 | /* |
51 | * BA0 registers |
52 | */ |
53 | #define BA0_HISR 0x0000 /* Host Interrupt Status Register */ |
54 | #define BA0_HISR_INTENA (1<<31) /* Internal Interrupt Enable Bit */ |
55 | #define BA0_HISR_MIDI (1<<22) /* MIDI port interrupt */ |
56 | #define BA0_HISR_FIFOI (1<<20) /* FIFO polled interrupt */ |
57 | #define BA0_HISR_DMAI (1<<18) /* DMA interrupt (half or end) */ |
58 | #define BA0_HISR_FIFO(c) (1<<(12+(c))) /* FIFO channel interrupt */ |
59 | #define BA0_HISR_DMA(c) (1<<(8+(c))) /* DMA channel interrupt */ |
60 | #define BA0_HISR_GPPI (1<<5) /* General Purpose Input (Primary chip) */ |
61 | #define BA0_HISR_GPSI (1<<4) /* General Purpose Input (Secondary chip) */ |
62 | #define BA0_HISR_GP3I (1<<3) /* GPIO3 pin Interrupt */ |
63 | #define BA0_HISR_GP1I (1<<2) /* GPIO1 pin Interrupt */ |
64 | #define BA0_HISR_VUPI (1<<1) /* VOLUP pin Interrupt */ |
65 | #define BA0_HISR_VDNI (1<<0) /* VOLDN pin Interrupt */ |
66 | |
67 | #define BA0_HICR 0x0008 /* Host Interrupt Control Register */ |
68 | #define BA0_HICR_CHGM (1<<1) /* INTENA Change Mask */ |
69 | #define BA0_HICR_IEV (1<<0) /* INTENA Value */ |
70 | #define BA0_HICR_EOI (3<<0) /* End of Interrupt command */ |
71 | |
72 | #define BA0_HIMR 0x000c /* Host Interrupt Mask Register */ |
73 | /* Use same contants as for BA0_HISR */ |
74 | |
75 | #define BA0_IIER 0x0010 /* ISA Interrupt Enable Register */ |
76 | |
77 | #define BA0_HDSR0 0x00f0 /* Host DMA Engine 0 Status Register */ |
78 | #define BA0_HDSR1 0x00f4 /* Host DMA Engine 1 Status Register */ |
79 | #define BA0_HDSR2 0x00f8 /* Host DMA Engine 2 Status Register */ |
80 | #define BA0_HDSR3 0x00fc /* Host DMA Engine 3 Status Register */ |
81 | |
82 | #define BA0_HDSR_CH1P (1<<25) /* Channel 1 Pending */ |
83 | #define BA0_HDSR_CH2P (1<<24) /* Channel 2 Pending */ |
84 | #define BA0_HDSR_DHTC (1<<17) /* DMA Half Terminal Count */ |
85 | #define BA0_HDSR_DTC (1<<16) /* DMA Terminal Count */ |
86 | #define BA0_HDSR_DRUN (1<<15) /* DMA Running */ |
87 | #define BA0_HDSR_RQ (1<<7) /* Pending Request */ |
88 | |
89 | #define BA0_DCA0 0x0110 /* Host DMA Engine 0 Current Address */ |
90 | #define BA0_DCC0 0x0114 /* Host DMA Engine 0 Current Count */ |
91 | #define BA0_DBA0 0x0118 /* Host DMA Engine 0 Base Address */ |
92 | #define BA0_DBC0 0x011c /* Host DMA Engine 0 Base Count */ |
93 | #define BA0_DCA1 0x0120 /* Host DMA Engine 1 Current Address */ |
94 | #define BA0_DCC1 0x0124 /* Host DMA Engine 1 Current Count */ |
95 | #define BA0_DBA1 0x0128 /* Host DMA Engine 1 Base Address */ |
96 | #define BA0_DBC1 0x012c /* Host DMA Engine 1 Base Count */ |
97 | #define BA0_DCA2 0x0130 /* Host DMA Engine 2 Current Address */ |
98 | #define BA0_DCC2 0x0134 /* Host DMA Engine 2 Current Count */ |
99 | #define BA0_DBA2 0x0138 /* Host DMA Engine 2 Base Address */ |
100 | #define BA0_DBC2 0x013c /* Host DMA Engine 2 Base Count */ |
101 | #define BA0_DCA3 0x0140 /* Host DMA Engine 3 Current Address */ |
102 | #define BA0_DCC3 0x0144 /* Host DMA Engine 3 Current Count */ |
103 | #define BA0_DBA3 0x0148 /* Host DMA Engine 3 Base Address */ |
104 | #define BA0_DBC3 0x014c /* Host DMA Engine 3 Base Count */ |
105 | #define BA0_DMR0 0x0150 /* Host DMA Engine 0 Mode */ |
106 | #define BA0_DCR0 0x0154 /* Host DMA Engine 0 Command */ |
107 | #define BA0_DMR1 0x0158 /* Host DMA Engine 1 Mode */ |
108 | #define BA0_DCR1 0x015c /* Host DMA Engine 1 Command */ |
109 | #define BA0_DMR2 0x0160 /* Host DMA Engine 2 Mode */ |
110 | #define BA0_DCR2 0x0164 /* Host DMA Engine 2 Command */ |
111 | #define BA0_DMR3 0x0168 /* Host DMA Engine 3 Mode */ |
112 | #define BA0_DCR3 0x016c /* Host DMA Engine 3 Command */ |
113 | |
114 | #define BA0_DMR_DMA (1<<29) /* Enable DMA mode */ |
115 | #define BA0_DMR_POLL (1<<28) /* Enable poll mode */ |
116 | #define BA0_DMR_TBC (1<<25) /* Transfer By Channel */ |
117 | #define BA0_DMR_CBC (1<<24) /* Count By Channel (0 = frame resolution) */ |
118 | #define BA0_DMR_SWAPC (1<<22) /* Swap Left/Right Channels */ |
119 | #define BA0_DMR_SIZE20 (1<<20) /* Sample is 20-bit */ |
120 | #define BA0_DMR_USIGN (1<<19) /* Unsigned */ |
121 | #define BA0_DMR_BEND (1<<18) /* Big Endian */ |
122 | #define BA0_DMR_MONO (1<<17) /* Mono */ |
123 | #define BA0_DMR_SIZE8 (1<<16) /* Sample is 8-bit */ |
124 | #define BA0_DMR_TYPE_DEMAND (0<<6) |
125 | #define BA0_DMR_TYPE_SINGLE (1<<6) |
126 | #define BA0_DMR_TYPE_BLOCK (2<<6) |
127 | #define BA0_DMR_TYPE_CASCADE (3<<6) /* Not supported */ |
128 | #define BA0_DMR_DEC (1<<5) /* Access Increment (0) or Decrement (1) */ |
129 | #define BA0_DMR_AUTO (1<<4) /* Auto-Initialize */ |
130 | #define BA0_DMR_TR_VERIFY (0<<2) /* Verify Transfer */ |
131 | #define BA0_DMR_TR_WRITE (1<<2) /* Write Transfer */ |
132 | #define BA0_DMR_TR_READ (2<<2) /* Read Transfer */ |
133 | |
134 | #define BA0_DCR_HTCIE (1<<17) /* Half Terminal Count Interrupt */ |
135 | #define BA0_DCR_TCIE (1<<16) /* Terminal Count Interrupt */ |
136 | #define BA0_DCR_MSK (1<<0) /* DMA Mask bit */ |
137 | |
138 | #define BA0_FCR0 0x0180 /* FIFO Control 0 */ |
139 | #define BA0_FCR1 0x0184 /* FIFO Control 1 */ |
140 | #define BA0_FCR2 0x0188 /* FIFO Control 2 */ |
141 | #define BA0_FCR3 0x018c /* FIFO Control 3 */ |
142 | |
143 | #define BA0_FCR_FEN (1<<31) /* FIFO Enable bit */ |
144 | #define BA0_FCR_DACZ (1<<30) /* DAC Zero */ |
145 | #define BA0_FCR_PSH (1<<29) /* Previous Sample Hold */ |
146 | #define BA0_FCR_RS(x) (((x)&0x1f)<<24) /* Right Slot Mapping */ |
147 | #define BA0_FCR_LS(x) (((x)&0x1f)<<16) /* Left Slot Mapping */ |
148 | #define BA0_FCR_SZ(x) (((x)&0x7f)<<8) /* FIFO buffer size (in samples) */ |
149 | #define BA0_FCR_OF(x) (((x)&0x7f)<<0) /* FIFO starting offset (in samples) */ |
150 | |
151 | #define BA0_FPDR0 0x0190 /* FIFO Polled Data 0 */ |
152 | #define BA0_FPDR1 0x0194 /* FIFO Polled Data 1 */ |
153 | #define BA0_FPDR2 0x0198 /* FIFO Polled Data 2 */ |
154 | #define BA0_FPDR3 0x019c /* FIFO Polled Data 3 */ |
155 | |
156 | #define BA0_FCHS 0x020c /* FIFO Channel Status */ |
157 | #define BA0_FCHS_RCO(x) (1<<(7+(((x)&3)<<3))) /* Right Channel Out */ |
158 | #define BA0_FCHS_LCO(x) (1<<(6+(((x)&3)<<3))) /* Left Channel Out */ |
159 | #define BA0_FCHS_MRP(x) (1<<(5+(((x)&3)<<3))) /* Move Read Pointer */ |
160 | #define BA0_FCHS_FE(x) (1<<(4+(((x)&3)<<3))) /* FIFO Empty */ |
161 | #define BA0_FCHS_FF(x) (1<<(3+(((x)&3)<<3))) /* FIFO Full */ |
162 | #define BA0_FCHS_IOR(x) (1<<(2+(((x)&3)<<3))) /* Internal Overrun Flag */ |
163 | #define BA0_FCHS_RCI(x) (1<<(1+(((x)&3)<<3))) /* Right Channel In */ |
164 | #define BA0_FCHS_LCI(x) (1<<(0+(((x)&3)<<3))) /* Left Channel In */ |
165 | |
166 | #define BA0_FSIC0 0x0210 /* FIFO Status and Interrupt Control 0 */ |
167 | #define BA0_FSIC1 0x0214 /* FIFO Status and Interrupt Control 1 */ |
168 | #define BA0_FSIC2 0x0218 /* FIFO Status and Interrupt Control 2 */ |
169 | #define BA0_FSIC3 0x021c /* FIFO Status and Interrupt Control 3 */ |
170 | |
171 | #define BA0_FSIC_FIC(x) (((x)&0x7f)<<24) /* FIFO Interrupt Count */ |
172 | #define BA0_FSIC_FORIE (1<<23) /* FIFO OverRun Interrupt Enable */ |
173 | #define BA0_FSIC_FURIE (1<<22) /* FIFO UnderRun Interrupt Enable */ |
174 | #define BA0_FSIC_FSCIE (1<<16) /* FIFO Sample Count Interrupt Enable */ |
175 | #define BA0_FSIC_FSC(x) (((x)&0x7f)<<8) /* FIFO Sample Count */ |
176 | #define BA0_FSIC_FOR (1<<7) /* FIFO OverRun */ |
177 | #define BA0_FSIC_FUR (1<<6) /* FIFO UnderRun */ |
178 | #define BA0_FSIC_FSCR (1<<0) /* FIFO Sample Count Reached */ |
179 | |
180 | #define BA0_PMCS 0x0344 /* Power Management Control/Status */ |
181 | #define BA0_CWPR 0x03e0 /* Configuration Write Protect */ |
182 | |
183 | #define BA0_EPPMC 0x03e4 /* Extended PCI Power Management Control */ |
184 | #define BA0_EPPMC_FPDN (1<<14) /* Full Power DowN */ |
185 | |
186 | #define BA0_GPIOR 0x03e8 /* GPIO Pin Interface Register */ |
187 | |
188 | #define BA0_SPMC 0x03ec /* Serial Port Power Management Control (& ASDIN2 enable) */ |
189 | #define BA0_SPMC_GIPPEN (1<<15) /* GP INT Primary PME# Enable */ |
190 | #define BA0_SPMC_GISPEN (1<<14) /* GP INT Secondary PME# Enable */ |
191 | #define BA0_SPMC_EESPD (1<<9) /* EEPROM Serial Port Disable */ |
192 | #define BA0_SPMC_ASDI2E (1<<8) /* ASDIN2 Enable */ |
193 | #define BA0_SPMC_ASDO (1<<7) /* Asynchronous ASDOUT Assertion */ |
194 | #define BA0_SPMC_WUP2 (1<<3) /* Wakeup for Secondary Input */ |
195 | #define BA0_SPMC_WUP1 (1<<2) /* Wakeup for Primary Input */ |
196 | #define BA0_SPMC_ASYNC (1<<1) /* Asynchronous ASYNC Assertion */ |
197 | #define BA0_SPMC_RSTN (1<<0) /* Reset Not! */ |
198 | |
199 | #define BA0_CFLR 0x03f0 /* Configuration Load Register (EEPROM or BIOS) */ |
200 | #define BA0_CFLR_DEFAULT 0x00000001 /* CFLR must be in AC97 link mode */ |
201 | #define BA0_IISR 0x03f4 /* ISA Interrupt Select */ |
202 | #define BA0_TMS 0x03f8 /* Test Register */ |
203 | #define BA0_SSVID 0x03fc /* Subsystem ID register */ |
204 | |
205 | #define BA0_CLKCR1 0x0400 /* Clock Control Register 1 */ |
206 | #define BA0_CLKCR1_CLKON (1<<25) /* Read Only */ |
207 | #define BA0_CLKCR1_DLLRDY (1<<24) /* DLL Ready */ |
208 | #define BA0_CLKCR1_DLLOS (1<<6) /* DLL Output Select */ |
209 | #define BA0_CLKCR1_SWCE (1<<5) /* Clock Enable */ |
210 | #define BA0_CLKCR1_DLLP (1<<4) /* DLL PowerUp */ |
211 | #define BA0_CLKCR1_DLLSS (((x)&3)<<3) /* DLL Source Select */ |
212 | |
213 | #define BA0_FRR 0x0410 /* Feature Reporting Register */ |
214 | #define BA0_SLT12O 0x041c /* Slot 12 GPIO Output Register for AC-Link */ |
215 | |
216 | #define BA0_SERMC 0x0420 /* Serial Port Master Control */ |
217 | #define BA0_SERMC_FCRN (1<<27) /* Force Codec Ready Not */ |
218 | #define BA0_SERMC_ODSEN2 (1<<25) /* On-Demand Support Enable ASDIN2 */ |
219 | #define BA0_SERMC_ODSEN1 (1<<24) /* On-Demand Support Enable ASDIN1 */ |
220 | #define BA0_SERMC_SXLB (1<<21) /* ASDIN2 to ASDOUT Loopback */ |
221 | #define BA0_SERMC_SLB (1<<20) /* ASDOUT to ASDIN2 Loopback */ |
222 | #define BA0_SERMC_LOVF (1<<19) /* Loopback Output Valid Frame bit */ |
223 | #define BA0_SERMC_TCID(x) (((x)&3)<<16) /* Target Secondary Codec ID */ |
224 | #define BA0_SERMC_PXLB (5<<1) /* Primary Port External Loopback */ |
225 | #define BA0_SERMC_PLB (4<<1) /* Primary Port Internal Loopback */ |
226 | #define BA0_SERMC_PTC (7<<1) /* Port Timing Configuration */ |
227 | #define BA0_SERMC_PTC_AC97 (1<<1) /* AC97 mode */ |
228 | #define BA0_SERMC_MSPE (1<<0) /* Master Serial Port Enable */ |
229 | |
230 | #define BA0_SERC1 0x0428 /* Serial Port Configuration 1 */ |
231 | #define BA0_SERC1_SO1F(x) (((x)&7)>>1) /* Primary Output Port Format */ |
232 | #define BA0_SERC1_AC97 (1<<1) |
233 | #define BA0_SERC1_SO1EN (1<<0) /* Primary Output Port Enable */ |
234 | |
235 | #define BA0_SERC2 0x042c /* Serial Port Configuration 2 */ |
236 | #define BA0_SERC2_SI1F(x) (((x)&7)>>1) /* Primary Input Port Format */ |
237 | #define BA0_SERC2_AC97 (1<<1) |
238 | #define BA0_SERC2_SI1EN (1<<0) /* Primary Input Port Enable */ |
239 | |
240 | #define BA0_SLT12M 0x045c /* Slot 12 Monitor Register for Primary AC-Link */ |
241 | |
242 | #define BA0_ACCTL 0x0460 /* AC'97 Control */ |
243 | #define BA0_ACCTL_TC (1<<6) /* Target Codec */ |
244 | #define BA0_ACCTL_CRW (1<<4) /* 0=Write, 1=Read Command */ |
245 | #define BA0_ACCTL_DCV (1<<3) /* Dynamic Command Valid */ |
246 | #define BA0_ACCTL_VFRM (1<<2) /* Valid Frame */ |
247 | #define BA0_ACCTL_ESYN (1<<1) /* Enable Sync */ |
248 | |
249 | #define BA0_ACSTS 0x0464 /* AC'97 Status */ |
250 | #define BA0_ACSTS_VSTS (1<<1) /* Valid Status */ |
251 | #define BA0_ACSTS_CRDY (1<<0) /* Codec Ready */ |
252 | |
253 | #define BA0_ACOSV 0x0468 /* AC'97 Output Slot Valid */ |
254 | #define BA0_ACOSV_SLV(x) (1<<((x)-3)) |
255 | |
256 | #define BA0_ACCAD 0x046c /* AC'97 Command Address */ |
257 | #define BA0_ACCDA 0x0470 /* AC'97 Command Data */ |
258 | |
259 | #define BA0_ACISV 0x0474 /* AC'97 Input Slot Valid */ |
260 | #define BA0_ACISV_SLV(x) (1<<((x)-3)) |
261 | |
262 | #define BA0_ACSAD 0x0478 /* AC'97 Status Address */ |
263 | #define BA0_ACSDA 0x047c /* AC'97 Status Data */ |
264 | #define BA0_JSPT 0x0480 /* Joystick poll/trigger */ |
265 | #define BA0_JSCTL 0x0484 /* Joystick control */ |
266 | #define BA0_JSC1 0x0488 /* Joystick control */ |
267 | #define BA0_JSC2 0x048c /* Joystick control */ |
268 | #define BA0_JSIO 0x04a0 |
269 | |
270 | #define BA0_MIDCR 0x0490 /* MIDI Control */ |
271 | #define BA0_MIDCR_MRST (1<<5) /* Reset MIDI Interface */ |
272 | #define BA0_MIDCR_MLB (1<<4) /* MIDI Loop Back Enable */ |
273 | #define BA0_MIDCR_TIE (1<<3) /* MIDI Transmuit Interrupt Enable */ |
274 | #define BA0_MIDCR_RIE (1<<2) /* MIDI Receive Interrupt Enable */ |
275 | #define BA0_MIDCR_RXE (1<<1) /* MIDI Receive Enable */ |
276 | #define BA0_MIDCR_TXE (1<<0) /* MIDI Transmit Enable */ |
277 | |
278 | #define BA0_MIDCMD 0x0494 /* MIDI Command (wo) */ |
279 | |
280 | #define BA0_MIDSR 0x0494 /* MIDI Status (ro) */ |
281 | #define BA0_MIDSR_RDA (1<<15) /* Sticky bit (RBE 1->0) */ |
282 | #define BA0_MIDSR_TBE (1<<14) /* Sticky bit (TBF 0->1) */ |
283 | #define BA0_MIDSR_RBE (1<<7) /* Receive Buffer Empty */ |
284 | #define BA0_MIDSR_TBF (1<<6) /* Transmit Buffer Full */ |
285 | |
286 | #define BA0_MIDWP 0x0498 /* MIDI Write */ |
287 | #define BA0_MIDRP 0x049c /* MIDI Read (ro) */ |
288 | |
289 | #define BA0_AODSD1 0x04a8 /* AC'97 On-Demand Slot Disable for primary link (ro) */ |
290 | #define BA0_AODSD1_NDS(x) (1<<((x)-3)) |
291 | |
292 | #define BA0_AODSD2 0x04ac /* AC'97 On-Demand Slot Disable for secondary link (ro) */ |
293 | #define BA0_AODSD2_NDS(x) (1<<((x)-3)) |
294 | |
295 | #define BA0_CFGI 0x04b0 /* Configure Interface (EEPROM interface) */ |
296 | #define BA0_SLT12M2 0x04dc /* Slot 12 Monitor Register 2 for secondary AC-link */ |
297 | #define BA0_ACSTS2 0x04e4 /* AC'97 Status Register 2 */ |
298 | #define BA0_ACISV2 0x04f4 /* AC'97 Input Slot Valid Register 2 */ |
299 | #define BA0_ACSAD2 0x04f8 /* AC'97 Status Address Register 2 */ |
300 | #define BA0_ACSDA2 0x04fc /* AC'97 Status Data Register 2 */ |
301 | #define BA0_FMSR 0x0730 /* FM Synthesis Status (ro) */ |
302 | #define BA0_B0AP 0x0730 /* FM Bank 0 Address Port (wo) */ |
303 | #define BA0_FMDP 0x0734 /* FM Data Port */ |
304 | #define BA0_B1AP 0x0738 /* FM Bank 1 Address Port */ |
305 | #define BA0_B1DP 0x073c /* FM Bank 1 Data Port */ |
306 | |
307 | #define BA0_SSPM 0x0740 /* Sound System Power Management */ |
308 | #define BA0_SSPM_MIXEN (1<<6) /* Playback SRC + FM/Wavetable MIX */ |
309 | #define BA0_SSPM_CSRCEN (1<<5) /* Capture Sample Rate Converter Enable */ |
310 | #define BA0_SSPM_PSRCEN (1<<4) /* Playback Sample Rate Converter Enable */ |
311 | #define BA0_SSPM_JSEN (1<<3) /* Joystick Enable */ |
312 | #define BA0_SSPM_ACLEN (1<<2) /* Serial Port Engine and AC-Link Enable */ |
313 | #define BA0_SSPM_FMEN (1<<1) /* FM Synthesis Block Enable */ |
314 | |
315 | #define BA0_DACSR 0x0744 /* DAC Sample Rate - Playback SRC */ |
316 | #define BA0_ADCSR 0x0748 /* ADC Sample Rate - Capture SRC */ |
317 | |
318 | #define BA0_SSCR 0x074c /* Sound System Control Register */ |
319 | #define BA0_SSCR_HVS1 (1<<23) /* Hardwave Volume Step (0=1,1=2) */ |
320 | #define BA0_SSCR_MVCS (1<<19) /* Master Volume Codec Select */ |
321 | #define BA0_SSCR_MVLD (1<<18) /* Master Volume Line Out Disable */ |
322 | #define BA0_SSCR_MVAD (1<<17) /* Master Volume Alternate Out Disable */ |
323 | #define BA0_SSCR_MVMD (1<<16) /* Master Volume Mono Out Disable */ |
324 | #define BA0_SSCR_XLPSRC (1<<8) /* External SRC Loopback Mode */ |
325 | #define BA0_SSCR_LPSRC (1<<7) /* SRC Loopback Mode */ |
326 | #define BA0_SSCR_CDTX (1<<5) /* CD Transfer Data */ |
327 | #define BA0_SSCR_HVC (1<<3) /* Harware Volume Control Enable */ |
328 | |
329 | #define BA0_FMLVC 0x0754 /* FM Synthesis Left Volume Control */ |
330 | #define BA0_FMRVC 0x0758 /* FM Synthesis Right Volume Control */ |
331 | #define BA0_SRCSA 0x075c /* SRC Slot Assignments */ |
332 | #define BA0_PPLVC 0x0760 /* PCM Playback Left Volume Control */ |
333 | #define BA0_PPRVC 0x0764 /* PCM Playback Right Volume Control */ |
334 | #define BA0_PASR 0x0768 /* playback sample rate */ |
335 | #define BA0_CASR 0x076C /* capture sample rate */ |
336 | |
337 | /* Source Slot Numbers - Playback */ |
338 | #define SRCSLOT_LEFT_PCM_PLAYBACK 0 |
339 | #define SRCSLOT_RIGHT_PCM_PLAYBACK 1 |
340 | #define SRCSLOT_PHONE_LINE_1_DAC 2 |
341 | #define SRCSLOT_CENTER_PCM_PLAYBACK 3 |
342 | #define SRCSLOT_LEFT_SURROUND_PCM_PLAYBACK 4 |
343 | #define SRCSLOT_RIGHT_SURROUND_PCM_PLAYBACK 5 |
344 | #define SRCSLOT_LFE_PCM_PLAYBACK 6 |
345 | #define SRCSLOT_PHONE_LINE_2_DAC 7 |
346 | #define SRCSLOT_HEADSET_DAC 8 |
347 | #define SRCSLOT_LEFT_WT 29 /* invalid for BA0_SRCSA */ |
348 | #define SRCSLOT_RIGHT_WT 30 /* invalid for BA0_SRCSA */ |
349 | |
350 | /* Source Slot Numbers - Capture */ |
351 | #define SRCSLOT_LEFT_PCM_RECORD 10 |
352 | #define SRCSLOT_RIGHT_PCM_RECORD 11 |
353 | #define SRCSLOT_PHONE_LINE_1_ADC 12 |
354 | #define SRCSLOT_MIC_ADC 13 |
355 | #define SRCSLOT_PHONE_LINE_2_ADC 17 |
356 | #define SRCSLOT_HEADSET_ADC 18 |
357 | #define SRCSLOT_SECONDARY_LEFT_PCM_RECORD 20 |
358 | #define SRCSLOT_SECONDARY_RIGHT_PCM_RECORD 21 |
359 | #define SRCSLOT_SECONDARY_PHONE_LINE_1_ADC 22 |
360 | #define SRCSLOT_SECONDARY_MIC_ADC 23 |
361 | #define SRCSLOT_SECONDARY_PHONE_LINE_2_ADC 27 |
362 | #define SRCSLOT_SECONDARY_HEADSET_ADC 28 |
363 | |
364 | /* Source Slot Numbers - Others */ |
365 | #define SRCSLOT_POWER_DOWN 31 |
366 | |
367 | /* MIDI modes */ |
368 | #define CS4281_MODE_OUTPUT (1<<0) |
369 | #define CS4281_MODE_INPUT (1<<1) |
370 | |
371 | /* joystick bits */ |
372 | /* Bits for JSPT */ |
373 | #define JSPT_CAX 0x00000001 |
374 | #define JSPT_CAY 0x00000002 |
375 | #define JSPT_CBX 0x00000004 |
376 | #define JSPT_CBY 0x00000008 |
377 | #define JSPT_BA1 0x00000010 |
378 | #define JSPT_BA2 0x00000020 |
379 | #define JSPT_BB1 0x00000040 |
380 | #define JSPT_BB2 0x00000080 |
381 | |
382 | /* Bits for JSCTL */ |
383 | #define JSCTL_SP_MASK 0x00000003 |
384 | #define JSCTL_SP_SLOW 0x00000000 |
385 | #define JSCTL_SP_MEDIUM_SLOW 0x00000001 |
386 | #define JSCTL_SP_MEDIUM_FAST 0x00000002 |
387 | #define JSCTL_SP_FAST 0x00000003 |
388 | #define JSCTL_ARE 0x00000004 |
389 | |
390 | /* Data register pairs masks */ |
391 | #define JSC1_Y1V_MASK 0x0000FFFF |
392 | #define JSC1_X1V_MASK 0xFFFF0000 |
393 | #define JSC1_Y1V_SHIFT 0 |
394 | #define JSC1_X1V_SHIFT 16 |
395 | #define JSC2_Y2V_MASK 0x0000FFFF |
396 | #define JSC2_X2V_MASK 0xFFFF0000 |
397 | #define JSC2_Y2V_SHIFT 0 |
398 | #define JSC2_X2V_SHIFT 16 |
399 | |
400 | /* JS GPIO */ |
401 | #define JSIO_DAX 0x00000001 |
402 | #define JSIO_DAY 0x00000002 |
403 | #define JSIO_DBX 0x00000004 |
404 | #define JSIO_DBY 0x00000008 |
405 | #define JSIO_AXOE 0x00000010 |
406 | #define JSIO_AYOE 0x00000020 |
407 | #define JSIO_BXOE 0x00000040 |
408 | #define JSIO_BYOE 0x00000080 |
409 | |
410 | /* |
411 | * |
412 | */ |
413 | |
414 | struct cs4281_dma { |
415 | struct snd_pcm_substream *substream; |
416 | unsigned int regDBA; /* offset to DBA register */ |
417 | unsigned int regDCA; /* offset to DCA register */ |
418 | unsigned int regDBC; /* offset to DBC register */ |
419 | unsigned int regDCC; /* offset to DCC register */ |
420 | unsigned int regDMR; /* offset to DMR register */ |
421 | unsigned int regDCR; /* offset to DCR register */ |
422 | unsigned int regHDSR; /* offset to HDSR register */ |
423 | unsigned int regFCR; /* offset to FCR register */ |
424 | unsigned int regFSIC; /* offset to FSIC register */ |
425 | unsigned int valDMR; /* DMA mode */ |
426 | unsigned int valDCR; /* DMA command */ |
427 | unsigned int valFCR; /* FIFO control */ |
428 | unsigned int fifo_offset; /* FIFO offset within BA1 */ |
429 | unsigned char left_slot; /* FIFO left slot */ |
430 | unsigned char right_slot; /* FIFO right slot */ |
431 | int frag; /* period number */ |
432 | }; |
433 | |
434 | #define SUSPEND_REGISTERS 20 |
435 | |
436 | struct cs4281 { |
437 | int irq; |
438 | |
439 | void __iomem *ba0; /* virtual (accessible) address */ |
440 | void __iomem *ba1; /* virtual (accessible) address */ |
441 | unsigned long ba0_addr; |
442 | unsigned long ba1_addr; |
443 | |
444 | int dual_codec; |
445 | |
446 | struct snd_ac97_bus *ac97_bus; |
447 | struct snd_ac97 *ac97; |
448 | struct snd_ac97 *ac97_secondary; |
449 | |
450 | struct pci_dev *pci; |
451 | struct snd_card *card; |
452 | struct snd_pcm *pcm; |
453 | struct snd_rawmidi *rmidi; |
454 | struct snd_rawmidi_substream *midi_input; |
455 | struct snd_rawmidi_substream *midi_output; |
456 | |
457 | struct cs4281_dma dma[4]; |
458 | |
459 | unsigned char src_left_play_slot; |
460 | unsigned char src_right_play_slot; |
461 | unsigned char src_left_rec_slot; |
462 | unsigned char src_right_rec_slot; |
463 | |
464 | unsigned int spurious_dhtc_irq; |
465 | unsigned int spurious_dtc_irq; |
466 | |
467 | spinlock_t reg_lock; |
468 | unsigned int midcr; |
469 | unsigned int uartm; |
470 | |
471 | struct gameport *gameport; |
472 | |
473 | u32 suspend_regs[SUSPEND_REGISTERS]; |
474 | }; |
475 | |
476 | static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id); |
477 | |
478 | static const struct pci_device_id snd_cs4281_ids[] = { |
479 | { PCI_VDEVICE(CIRRUS, 0x6005), 0, }, /* CS4281 */ |
480 | { 0, } |
481 | }; |
482 | |
483 | MODULE_DEVICE_TABLE(pci, snd_cs4281_ids); |
484 | |
485 | /* |
486 | * constants |
487 | */ |
488 | |
489 | #define CS4281_FIFO_SIZE 32 |
490 | |
491 | /* |
492 | * common I/O routines |
493 | */ |
494 | |
495 | static inline void snd_cs4281_pokeBA0(struct cs4281 *chip, unsigned long offset, |
496 | unsigned int val) |
497 | { |
498 | writel(val, addr: chip->ba0 + offset); |
499 | } |
500 | |
501 | static inline unsigned int snd_cs4281_peekBA0(struct cs4281 *chip, unsigned long offset) |
502 | { |
503 | return readl(addr: chip->ba0 + offset); |
504 | } |
505 | |
506 | static void snd_cs4281_ac97_write(struct snd_ac97 *ac97, |
507 | unsigned short reg, unsigned short val) |
508 | { |
509 | /* |
510 | * 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address |
511 | * 2. Write ACCDA = Command Data Register = 470h for data to write to AC97 |
512 | * 3. Write ACCTL = Control Register = 460h for initiating the write |
513 | * 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h |
514 | * 5. if DCV not cleared, break and return error |
515 | */ |
516 | struct cs4281 *chip = ac97->private_data; |
517 | int count; |
518 | |
519 | /* |
520 | * Setup the AC97 control registers on the CS461x to send the |
521 | * appropriate command to the AC97 to perform the read. |
522 | * ACCAD = Command Address Register = 46Ch |
523 | * ACCDA = Command Data Register = 470h |
524 | * ACCTL = Control Register = 460h |
525 | * set DCV - will clear when process completed |
526 | * reset CRW - Write command |
527 | * set VFRM - valid frame enabled |
528 | * set ESYN - ASYNC generation enabled |
529 | * set RSTN - ARST# inactive, AC97 codec not reset |
530 | */ |
531 | snd_cs4281_pokeBA0(chip, BA0_ACCAD, val: reg); |
532 | snd_cs4281_pokeBA0(chip, BA0_ACCDA, val); |
533 | snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_DCV | BA0_ACCTL_VFRM | |
534 | BA0_ACCTL_ESYN | (ac97->num ? BA0_ACCTL_TC : 0)); |
535 | for (count = 0; count < 2000; count++) { |
536 | /* |
537 | * First, we want to wait for a short time. |
538 | */ |
539 | udelay(10); |
540 | /* |
541 | * Now, check to see if the write has completed. |
542 | * ACCTL = 460h, DCV should be reset by now and 460h = 07h |
543 | */ |
544 | if (!(snd_cs4281_peekBA0(chip, BA0_ACCTL) & BA0_ACCTL_DCV)) { |
545 | return; |
546 | } |
547 | } |
548 | dev_err(chip->card->dev, |
549 | "AC'97 write problem, reg = 0x%x, val = 0x%x\n" , reg, val); |
550 | } |
551 | |
552 | static unsigned short snd_cs4281_ac97_read(struct snd_ac97 *ac97, |
553 | unsigned short reg) |
554 | { |
555 | struct cs4281 *chip = ac97->private_data; |
556 | int count; |
557 | unsigned short result; |
558 | // FIXME: volatile is necessary in the following due to a bug of |
559 | // some gcc versions |
560 | volatile int ac97_num = ((volatile struct snd_ac97 *)ac97)->num; |
561 | |
562 | /* |
563 | * 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address |
564 | * 2. Write ACCDA = Command Data Register = 470h for data to write to AC97 |
565 | * 3. Write ACCTL = Control Register = 460h for initiating the write |
566 | * 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h |
567 | * 5. if DCV not cleared, break and return error |
568 | * 6. Read ACSTS = Status Register = 464h, check VSTS bit |
569 | */ |
570 | |
571 | snd_cs4281_peekBA0(chip, offset: ac97_num ? BA0_ACSDA2 : BA0_ACSDA); |
572 | |
573 | /* |
574 | * Setup the AC97 control registers on the CS461x to send the |
575 | * appropriate command to the AC97 to perform the read. |
576 | * ACCAD = Command Address Register = 46Ch |
577 | * ACCDA = Command Data Register = 470h |
578 | * ACCTL = Control Register = 460h |
579 | * set DCV - will clear when process completed |
580 | * set CRW - Read command |
581 | * set VFRM - valid frame enabled |
582 | * set ESYN - ASYNC generation enabled |
583 | * set RSTN - ARST# inactive, AC97 codec not reset |
584 | */ |
585 | |
586 | snd_cs4281_pokeBA0(chip, BA0_ACCAD, val: reg); |
587 | snd_cs4281_pokeBA0(chip, BA0_ACCDA, val: 0); |
588 | snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_DCV | BA0_ACCTL_CRW | |
589 | BA0_ACCTL_VFRM | BA0_ACCTL_ESYN | |
590 | (ac97_num ? BA0_ACCTL_TC : 0)); |
591 | |
592 | |
593 | /* |
594 | * Wait for the read to occur. |
595 | */ |
596 | for (count = 0; count < 500; count++) { |
597 | /* |
598 | * First, we want to wait for a short time. |
599 | */ |
600 | udelay(10); |
601 | /* |
602 | * Now, check to see if the read has completed. |
603 | * ACCTL = 460h, DCV should be reset by now and 460h = 17h |
604 | */ |
605 | if (!(snd_cs4281_peekBA0(chip, BA0_ACCTL) & BA0_ACCTL_DCV)) |
606 | goto __ok1; |
607 | } |
608 | |
609 | dev_err(chip->card->dev, |
610 | "AC'97 read problem (ACCTL_DCV), reg = 0x%x\n" , reg); |
611 | result = 0xffff; |
612 | goto __end; |
613 | |
614 | __ok1: |
615 | /* |
616 | * Wait for the valid status bit to go active. |
617 | */ |
618 | for (count = 0; count < 100; count++) { |
619 | /* |
620 | * Read the AC97 status register. |
621 | * ACSTS = Status Register = 464h |
622 | * VSTS - Valid Status |
623 | */ |
624 | if (snd_cs4281_peekBA0(chip, offset: ac97_num ? BA0_ACSTS2 : BA0_ACSTS) & BA0_ACSTS_VSTS) |
625 | goto __ok2; |
626 | udelay(10); |
627 | } |
628 | |
629 | dev_err(chip->card->dev, |
630 | "AC'97 read problem (ACSTS_VSTS), reg = 0x%x\n" , reg); |
631 | result = 0xffff; |
632 | goto __end; |
633 | |
634 | __ok2: |
635 | /* |
636 | * Read the data returned from the AC97 register. |
637 | * ACSDA = Status Data Register = 474h |
638 | */ |
639 | result = snd_cs4281_peekBA0(chip, offset: ac97_num ? BA0_ACSDA2 : BA0_ACSDA); |
640 | |
641 | __end: |
642 | return result; |
643 | } |
644 | |
645 | /* |
646 | * PCM part |
647 | */ |
648 | |
649 | static int snd_cs4281_trigger(struct snd_pcm_substream *substream, int cmd) |
650 | { |
651 | struct cs4281_dma *dma = substream->runtime->private_data; |
652 | struct cs4281 *chip = snd_pcm_substream_chip(substream); |
653 | |
654 | spin_lock(lock: &chip->reg_lock); |
655 | switch (cmd) { |
656 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
657 | dma->valDCR |= BA0_DCR_MSK; |
658 | dma->valFCR |= BA0_FCR_FEN; |
659 | break; |
660 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
661 | dma->valDCR &= ~BA0_DCR_MSK; |
662 | dma->valFCR &= ~BA0_FCR_FEN; |
663 | break; |
664 | case SNDRV_PCM_TRIGGER_START: |
665 | case SNDRV_PCM_TRIGGER_RESUME: |
666 | snd_cs4281_pokeBA0(chip, offset: dma->regDMR, val: dma->valDMR & ~BA0_DMR_DMA); |
667 | dma->valDMR |= BA0_DMR_DMA; |
668 | dma->valDCR &= ~BA0_DCR_MSK; |
669 | dma->valFCR |= BA0_FCR_FEN; |
670 | break; |
671 | case SNDRV_PCM_TRIGGER_STOP: |
672 | case SNDRV_PCM_TRIGGER_SUSPEND: |
673 | dma->valDMR &= ~(BA0_DMR_DMA|BA0_DMR_POLL); |
674 | dma->valDCR |= BA0_DCR_MSK; |
675 | dma->valFCR &= ~BA0_FCR_FEN; |
676 | /* Leave wave playback FIFO enabled for FM */ |
677 | if (dma->regFCR != BA0_FCR0) |
678 | dma->valFCR &= ~BA0_FCR_FEN; |
679 | break; |
680 | default: |
681 | spin_unlock(lock: &chip->reg_lock); |
682 | return -EINVAL; |
683 | } |
684 | snd_cs4281_pokeBA0(chip, offset: dma->regDMR, val: dma->valDMR); |
685 | snd_cs4281_pokeBA0(chip, offset: dma->regFCR, val: dma->valFCR); |
686 | snd_cs4281_pokeBA0(chip, offset: dma->regDCR, val: dma->valDCR); |
687 | spin_unlock(lock: &chip->reg_lock); |
688 | return 0; |
689 | } |
690 | |
691 | static unsigned int snd_cs4281_rate(unsigned int rate, unsigned int *real_rate) |
692 | { |
693 | unsigned int val; |
694 | |
695 | if (real_rate) |
696 | *real_rate = rate; |
697 | /* special "hardcoded" rates */ |
698 | switch (rate) { |
699 | case 8000: return 5; |
700 | case 11025: return 4; |
701 | case 16000: return 3; |
702 | case 22050: return 2; |
703 | case 44100: return 1; |
704 | case 48000: return 0; |
705 | default: |
706 | break; |
707 | } |
708 | val = 1536000 / rate; |
709 | if (real_rate) |
710 | *real_rate = 1536000 / val; |
711 | return val; |
712 | } |
713 | |
714 | static void snd_cs4281_mode(struct cs4281 *chip, struct cs4281_dma *dma, |
715 | struct snd_pcm_runtime *runtime, |
716 | int capture, int src) |
717 | { |
718 | int rec_mono; |
719 | |
720 | dma->valDMR = BA0_DMR_TYPE_SINGLE | BA0_DMR_AUTO | |
721 | (capture ? BA0_DMR_TR_WRITE : BA0_DMR_TR_READ); |
722 | if (runtime->channels == 1) |
723 | dma->valDMR |= BA0_DMR_MONO; |
724 | if (snd_pcm_format_unsigned(format: runtime->format) > 0) |
725 | dma->valDMR |= BA0_DMR_USIGN; |
726 | if (snd_pcm_format_big_endian(format: runtime->format) > 0) |
727 | dma->valDMR |= BA0_DMR_BEND; |
728 | switch (snd_pcm_format_width(format: runtime->format)) { |
729 | case 8: dma->valDMR |= BA0_DMR_SIZE8; |
730 | if (runtime->channels == 1) |
731 | dma->valDMR |= BA0_DMR_SWAPC; |
732 | break; |
733 | case 32: dma->valDMR |= BA0_DMR_SIZE20; break; |
734 | } |
735 | dma->frag = 0; /* for workaround */ |
736 | dma->valDCR = BA0_DCR_TCIE | BA0_DCR_MSK; |
737 | if (runtime->buffer_size != runtime->period_size) |
738 | dma->valDCR |= BA0_DCR_HTCIE; |
739 | /* Initialize DMA */ |
740 | snd_cs4281_pokeBA0(chip, offset: dma->regDBA, val: runtime->dma_addr); |
741 | snd_cs4281_pokeBA0(chip, offset: dma->regDBC, val: runtime->buffer_size - 1); |
742 | rec_mono = (chip->dma[1].valDMR & BA0_DMR_MONO) == BA0_DMR_MONO; |
743 | snd_cs4281_pokeBA0(chip, BA0_SRCSA, val: (chip->src_left_play_slot << 0) | |
744 | (chip->src_right_play_slot << 8) | |
745 | (chip->src_left_rec_slot << 16) | |
746 | ((rec_mono ? 31 : chip->src_right_rec_slot) << 24)); |
747 | if (!src) |
748 | goto __skip_src; |
749 | if (!capture) { |
750 | if (dma->left_slot == chip->src_left_play_slot) { |
751 | unsigned int val = snd_cs4281_rate(rate: runtime->rate, NULL); |
752 | snd_BUG_ON(dma->right_slot != chip->src_right_play_slot); |
753 | snd_cs4281_pokeBA0(chip, BA0_DACSR, val); |
754 | } |
755 | } else { |
756 | if (dma->left_slot == chip->src_left_rec_slot) { |
757 | unsigned int val = snd_cs4281_rate(rate: runtime->rate, NULL); |
758 | snd_BUG_ON(dma->right_slot != chip->src_right_rec_slot); |
759 | snd_cs4281_pokeBA0(chip, BA0_ADCSR, val); |
760 | } |
761 | } |
762 | __skip_src: |
763 | /* Deactivate wave playback FIFO before changing slot assignments */ |
764 | if (dma->regFCR == BA0_FCR0) |
765 | snd_cs4281_pokeBA0(chip, offset: dma->regFCR, val: snd_cs4281_peekBA0(chip, offset: dma->regFCR) & ~BA0_FCR_FEN); |
766 | /* Initialize FIFO */ |
767 | dma->valFCR = BA0_FCR_LS(dma->left_slot) | |
768 | BA0_FCR_RS(capture && (dma->valDMR & BA0_DMR_MONO) ? 31 : dma->right_slot) | |
769 | BA0_FCR_SZ(CS4281_FIFO_SIZE) | |
770 | BA0_FCR_OF(dma->fifo_offset); |
771 | snd_cs4281_pokeBA0(chip, offset: dma->regFCR, val: dma->valFCR | (capture ? BA0_FCR_PSH : 0)); |
772 | /* Activate FIFO again for FM playback */ |
773 | if (dma->regFCR == BA0_FCR0) |
774 | snd_cs4281_pokeBA0(chip, offset: dma->regFCR, val: dma->valFCR | BA0_FCR_FEN); |
775 | /* Clear FIFO Status and Interrupt Control Register */ |
776 | snd_cs4281_pokeBA0(chip, offset: dma->regFSIC, val: 0); |
777 | } |
778 | |
779 | static int snd_cs4281_playback_prepare(struct snd_pcm_substream *substream) |
780 | { |
781 | struct snd_pcm_runtime *runtime = substream->runtime; |
782 | struct cs4281_dma *dma = runtime->private_data; |
783 | struct cs4281 *chip = snd_pcm_substream_chip(substream); |
784 | |
785 | spin_lock_irq(lock: &chip->reg_lock); |
786 | snd_cs4281_mode(chip, dma, runtime, capture: 0, src: 1); |
787 | spin_unlock_irq(lock: &chip->reg_lock); |
788 | return 0; |
789 | } |
790 | |
791 | static int snd_cs4281_capture_prepare(struct snd_pcm_substream *substream) |
792 | { |
793 | struct snd_pcm_runtime *runtime = substream->runtime; |
794 | struct cs4281_dma *dma = runtime->private_data; |
795 | struct cs4281 *chip = snd_pcm_substream_chip(substream); |
796 | |
797 | spin_lock_irq(lock: &chip->reg_lock); |
798 | snd_cs4281_mode(chip, dma, runtime, capture: 1, src: 1); |
799 | spin_unlock_irq(lock: &chip->reg_lock); |
800 | return 0; |
801 | } |
802 | |
803 | static snd_pcm_uframes_t snd_cs4281_pointer(struct snd_pcm_substream *substream) |
804 | { |
805 | struct snd_pcm_runtime *runtime = substream->runtime; |
806 | struct cs4281_dma *dma = runtime->private_data; |
807 | struct cs4281 *chip = snd_pcm_substream_chip(substream); |
808 | |
809 | /* |
810 | dev_dbg(chip->card->dev, |
811 | "DCC = 0x%x, buffer_size = 0x%x, jiffies = %li\n", |
812 | snd_cs4281_peekBA0(chip, dma->regDCC), runtime->buffer_size, |
813 | jiffies); |
814 | */ |
815 | return runtime->buffer_size - |
816 | snd_cs4281_peekBA0(chip, offset: dma->regDCC) - 1; |
817 | } |
818 | |
819 | static const struct snd_pcm_hardware snd_cs4281_playback = |
820 | { |
821 | .info = SNDRV_PCM_INFO_MMAP | |
822 | SNDRV_PCM_INFO_INTERLEAVED | |
823 | SNDRV_PCM_INFO_MMAP_VALID | |
824 | SNDRV_PCM_INFO_PAUSE | |
825 | SNDRV_PCM_INFO_RESUME, |
826 | .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | |
827 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_S16_LE | |
828 | SNDRV_PCM_FMTBIT_U16_BE | SNDRV_PCM_FMTBIT_S16_BE | |
829 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_S32_LE | |
830 | SNDRV_PCM_FMTBIT_U32_BE | SNDRV_PCM_FMTBIT_S32_BE, |
831 | .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, |
832 | .rate_min = 4000, |
833 | .rate_max = 48000, |
834 | .channels_min = 1, |
835 | .channels_max = 2, |
836 | .buffer_bytes_max = (512*1024), |
837 | .period_bytes_min = 64, |
838 | .period_bytes_max = (512*1024), |
839 | .periods_min = 1, |
840 | .periods_max = 2, |
841 | .fifo_size = CS4281_FIFO_SIZE, |
842 | }; |
843 | |
844 | static const struct snd_pcm_hardware snd_cs4281_capture = |
845 | { |
846 | .info = SNDRV_PCM_INFO_MMAP | |
847 | SNDRV_PCM_INFO_INTERLEAVED | |
848 | SNDRV_PCM_INFO_MMAP_VALID | |
849 | SNDRV_PCM_INFO_PAUSE | |
850 | SNDRV_PCM_INFO_RESUME, |
851 | .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | |
852 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_S16_LE | |
853 | SNDRV_PCM_FMTBIT_U16_BE | SNDRV_PCM_FMTBIT_S16_BE | |
854 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_S32_LE | |
855 | SNDRV_PCM_FMTBIT_U32_BE | SNDRV_PCM_FMTBIT_S32_BE, |
856 | .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, |
857 | .rate_min = 4000, |
858 | .rate_max = 48000, |
859 | .channels_min = 1, |
860 | .channels_max = 2, |
861 | .buffer_bytes_max = (512*1024), |
862 | .period_bytes_min = 64, |
863 | .period_bytes_max = (512*1024), |
864 | .periods_min = 1, |
865 | .periods_max = 2, |
866 | .fifo_size = CS4281_FIFO_SIZE, |
867 | }; |
868 | |
869 | static int snd_cs4281_playback_open(struct snd_pcm_substream *substream) |
870 | { |
871 | struct cs4281 *chip = snd_pcm_substream_chip(substream); |
872 | struct snd_pcm_runtime *runtime = substream->runtime; |
873 | struct cs4281_dma *dma; |
874 | |
875 | dma = &chip->dma[0]; |
876 | dma->substream = substream; |
877 | dma->left_slot = 0; |
878 | dma->right_slot = 1; |
879 | runtime->private_data = dma; |
880 | runtime->hw = snd_cs4281_playback; |
881 | /* should be detected from the AC'97 layer, but it seems |
882 | that although CS4297A rev B reports 18-bit ADC resolution, |
883 | samples are 20-bit */ |
884 | snd_pcm_hw_constraint_msbits(runtime, cond: 0, width: 32, msbits: 20); |
885 | return 0; |
886 | } |
887 | |
888 | static int snd_cs4281_capture_open(struct snd_pcm_substream *substream) |
889 | { |
890 | struct cs4281 *chip = snd_pcm_substream_chip(substream); |
891 | struct snd_pcm_runtime *runtime = substream->runtime; |
892 | struct cs4281_dma *dma; |
893 | |
894 | dma = &chip->dma[1]; |
895 | dma->substream = substream; |
896 | dma->left_slot = 10; |
897 | dma->right_slot = 11; |
898 | runtime->private_data = dma; |
899 | runtime->hw = snd_cs4281_capture; |
900 | /* should be detected from the AC'97 layer, but it seems |
901 | that although CS4297A rev B reports 18-bit ADC resolution, |
902 | samples are 20-bit */ |
903 | snd_pcm_hw_constraint_msbits(runtime, cond: 0, width: 32, msbits: 20); |
904 | return 0; |
905 | } |
906 | |
907 | static int snd_cs4281_playback_close(struct snd_pcm_substream *substream) |
908 | { |
909 | struct cs4281_dma *dma = substream->runtime->private_data; |
910 | |
911 | dma->substream = NULL; |
912 | return 0; |
913 | } |
914 | |
915 | static int snd_cs4281_capture_close(struct snd_pcm_substream *substream) |
916 | { |
917 | struct cs4281_dma *dma = substream->runtime->private_data; |
918 | |
919 | dma->substream = NULL; |
920 | return 0; |
921 | } |
922 | |
923 | static const struct snd_pcm_ops snd_cs4281_playback_ops = { |
924 | .open = snd_cs4281_playback_open, |
925 | .close = snd_cs4281_playback_close, |
926 | .prepare = snd_cs4281_playback_prepare, |
927 | .trigger = snd_cs4281_trigger, |
928 | .pointer = snd_cs4281_pointer, |
929 | }; |
930 | |
931 | static const struct snd_pcm_ops snd_cs4281_capture_ops = { |
932 | .open = snd_cs4281_capture_open, |
933 | .close = snd_cs4281_capture_close, |
934 | .prepare = snd_cs4281_capture_prepare, |
935 | .trigger = snd_cs4281_trigger, |
936 | .pointer = snd_cs4281_pointer, |
937 | }; |
938 | |
939 | static int snd_cs4281_pcm(struct cs4281 *chip, int device) |
940 | { |
941 | struct snd_pcm *pcm; |
942 | int err; |
943 | |
944 | err = snd_pcm_new(card: chip->card, id: "CS4281" , device, playback_count: 1, capture_count: 1, rpcm: &pcm); |
945 | if (err < 0) |
946 | return err; |
947 | |
948 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_PLAYBACK, ops: &snd_cs4281_playback_ops); |
949 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_CAPTURE, ops: &snd_cs4281_capture_ops); |
950 | |
951 | pcm->private_data = chip; |
952 | pcm->info_flags = 0; |
953 | strcpy(p: pcm->name, q: "CS4281" ); |
954 | chip->pcm = pcm; |
955 | |
956 | snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, data: &chip->pci->dev, |
957 | size: 64*1024, max: 512*1024); |
958 | |
959 | return 0; |
960 | } |
961 | |
962 | /* |
963 | * Mixer section |
964 | */ |
965 | |
966 | #define CS_VOL_MASK 0x1f |
967 | |
968 | static int snd_cs4281_info_volume(struct snd_kcontrol *kcontrol, |
969 | struct snd_ctl_elem_info *uinfo) |
970 | { |
971 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
972 | uinfo->count = 2; |
973 | uinfo->value.integer.min = 0; |
974 | uinfo->value.integer.max = CS_VOL_MASK; |
975 | return 0; |
976 | } |
977 | |
978 | static int snd_cs4281_get_volume(struct snd_kcontrol *kcontrol, |
979 | struct snd_ctl_elem_value *ucontrol) |
980 | { |
981 | struct cs4281 *chip = snd_kcontrol_chip(kcontrol); |
982 | int regL = (kcontrol->private_value >> 16) & 0xffff; |
983 | int regR = kcontrol->private_value & 0xffff; |
984 | int volL, volR; |
985 | |
986 | volL = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, offset: regL) & CS_VOL_MASK); |
987 | volR = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, offset: regR) & CS_VOL_MASK); |
988 | |
989 | ucontrol->value.integer.value[0] = volL; |
990 | ucontrol->value.integer.value[1] = volR; |
991 | return 0; |
992 | } |
993 | |
994 | static int snd_cs4281_put_volume(struct snd_kcontrol *kcontrol, |
995 | struct snd_ctl_elem_value *ucontrol) |
996 | { |
997 | struct cs4281 *chip = snd_kcontrol_chip(kcontrol); |
998 | int change = 0; |
999 | int regL = (kcontrol->private_value >> 16) & 0xffff; |
1000 | int regR = kcontrol->private_value & 0xffff; |
1001 | int volL, volR; |
1002 | |
1003 | volL = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, offset: regL) & CS_VOL_MASK); |
1004 | volR = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, offset: regR) & CS_VOL_MASK); |
1005 | |
1006 | if (ucontrol->value.integer.value[0] != volL) { |
1007 | volL = CS_VOL_MASK - (ucontrol->value.integer.value[0] & CS_VOL_MASK); |
1008 | snd_cs4281_pokeBA0(chip, offset: regL, val: volL); |
1009 | change = 1; |
1010 | } |
1011 | if (ucontrol->value.integer.value[1] != volR) { |
1012 | volR = CS_VOL_MASK - (ucontrol->value.integer.value[1] & CS_VOL_MASK); |
1013 | snd_cs4281_pokeBA0(chip, offset: regR, val: volR); |
1014 | change = 1; |
1015 | } |
1016 | return change; |
1017 | } |
1018 | |
1019 | static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -4650, 150, 0); |
1020 | |
1021 | static const struct snd_kcontrol_new snd_cs4281_fm_vol = |
1022 | { |
1023 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1024 | .name = "Synth Playback Volume" , |
1025 | .info = snd_cs4281_info_volume, |
1026 | .get = snd_cs4281_get_volume, |
1027 | .put = snd_cs4281_put_volume, |
1028 | .private_value = ((BA0_FMLVC << 16) | BA0_FMRVC), |
1029 | .tlv = { .p = db_scale_dsp }, |
1030 | }; |
1031 | |
1032 | static const struct snd_kcontrol_new snd_cs4281_pcm_vol = |
1033 | { |
1034 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1035 | .name = "PCM Stream Playback Volume" , |
1036 | .info = snd_cs4281_info_volume, |
1037 | .get = snd_cs4281_get_volume, |
1038 | .put = snd_cs4281_put_volume, |
1039 | .private_value = ((BA0_PPLVC << 16) | BA0_PPRVC), |
1040 | .tlv = { .p = db_scale_dsp }, |
1041 | }; |
1042 | |
1043 | static void snd_cs4281_mixer_free_ac97_bus(struct snd_ac97_bus *bus) |
1044 | { |
1045 | struct cs4281 *chip = bus->private_data; |
1046 | chip->ac97_bus = NULL; |
1047 | } |
1048 | |
1049 | static void snd_cs4281_mixer_free_ac97(struct snd_ac97 *ac97) |
1050 | { |
1051 | struct cs4281 *chip = ac97->private_data; |
1052 | if (ac97->num) |
1053 | chip->ac97_secondary = NULL; |
1054 | else |
1055 | chip->ac97 = NULL; |
1056 | } |
1057 | |
1058 | static int snd_cs4281_mixer(struct cs4281 *chip) |
1059 | { |
1060 | struct snd_card *card = chip->card; |
1061 | struct snd_ac97_template ac97; |
1062 | int err; |
1063 | static const struct snd_ac97_bus_ops ops = { |
1064 | .write = snd_cs4281_ac97_write, |
1065 | .read = snd_cs4281_ac97_read, |
1066 | }; |
1067 | |
1068 | err = snd_ac97_bus(card, num: 0, ops: &ops, private_data: chip, rbus: &chip->ac97_bus); |
1069 | if (err < 0) |
1070 | return err; |
1071 | chip->ac97_bus->private_free = snd_cs4281_mixer_free_ac97_bus; |
1072 | |
1073 | memset(&ac97, 0, sizeof(ac97)); |
1074 | ac97.private_data = chip; |
1075 | ac97.private_free = snd_cs4281_mixer_free_ac97; |
1076 | err = snd_ac97_mixer(bus: chip->ac97_bus, template: &ac97, rac97: &chip->ac97); |
1077 | if (err < 0) |
1078 | return err; |
1079 | if (chip->dual_codec) { |
1080 | ac97.num = 1; |
1081 | err = snd_ac97_mixer(bus: chip->ac97_bus, template: &ac97, rac97: &chip->ac97_secondary); |
1082 | if (err < 0) |
1083 | return err; |
1084 | } |
1085 | err = snd_ctl_add(card, kcontrol: snd_ctl_new1(kcontrolnew: &snd_cs4281_fm_vol, private_data: chip)); |
1086 | if (err < 0) |
1087 | return err; |
1088 | err = snd_ctl_add(card, kcontrol: snd_ctl_new1(kcontrolnew: &snd_cs4281_pcm_vol, private_data: chip)); |
1089 | if (err < 0) |
1090 | return err; |
1091 | return 0; |
1092 | } |
1093 | |
1094 | |
1095 | /* |
1096 | * proc interface |
1097 | */ |
1098 | |
1099 | static void snd_cs4281_proc_read(struct snd_info_entry *entry, |
1100 | struct snd_info_buffer *buffer) |
1101 | { |
1102 | struct cs4281 *chip = entry->private_data; |
1103 | |
1104 | snd_iprintf(buffer, "Cirrus Logic CS4281\n\n" ); |
1105 | snd_iprintf(buffer, "Spurious half IRQs : %u\n" , chip->spurious_dhtc_irq); |
1106 | snd_iprintf(buffer, "Spurious end IRQs : %u\n" , chip->spurious_dtc_irq); |
1107 | } |
1108 | |
1109 | static ssize_t snd_cs4281_BA0_read(struct snd_info_entry *entry, |
1110 | void *file_private_data, |
1111 | struct file *file, char __user *buf, |
1112 | size_t count, loff_t pos) |
1113 | { |
1114 | struct cs4281 *chip = entry->private_data; |
1115 | |
1116 | if (copy_to_user_fromio(dst: buf, src: chip->ba0 + pos, count)) |
1117 | return -EFAULT; |
1118 | return count; |
1119 | } |
1120 | |
1121 | static ssize_t snd_cs4281_BA1_read(struct snd_info_entry *entry, |
1122 | void *file_private_data, |
1123 | struct file *file, char __user *buf, |
1124 | size_t count, loff_t pos) |
1125 | { |
1126 | struct cs4281 *chip = entry->private_data; |
1127 | |
1128 | if (copy_to_user_fromio(dst: buf, src: chip->ba1 + pos, count)) |
1129 | return -EFAULT; |
1130 | return count; |
1131 | } |
1132 | |
1133 | static const struct snd_info_entry_ops snd_cs4281_proc_ops_BA0 = { |
1134 | .read = snd_cs4281_BA0_read, |
1135 | }; |
1136 | |
1137 | static const struct snd_info_entry_ops snd_cs4281_proc_ops_BA1 = { |
1138 | .read = snd_cs4281_BA1_read, |
1139 | }; |
1140 | |
1141 | static void snd_cs4281_proc_init(struct cs4281 *chip) |
1142 | { |
1143 | struct snd_info_entry *entry; |
1144 | |
1145 | snd_card_ro_proc_new(card: chip->card, name: "cs4281" , private_data: chip, read: snd_cs4281_proc_read); |
1146 | if (! snd_card_proc_new(card: chip->card, name: "cs4281_BA0" , entryp: &entry)) { |
1147 | entry->content = SNDRV_INFO_CONTENT_DATA; |
1148 | entry->private_data = chip; |
1149 | entry->c.ops = &snd_cs4281_proc_ops_BA0; |
1150 | entry->size = CS4281_BA0_SIZE; |
1151 | } |
1152 | if (! snd_card_proc_new(card: chip->card, name: "cs4281_BA1" , entryp: &entry)) { |
1153 | entry->content = SNDRV_INFO_CONTENT_DATA; |
1154 | entry->private_data = chip; |
1155 | entry->c.ops = &snd_cs4281_proc_ops_BA1; |
1156 | entry->size = CS4281_BA1_SIZE; |
1157 | } |
1158 | } |
1159 | |
1160 | /* |
1161 | * joystick support |
1162 | */ |
1163 | |
1164 | #if IS_REACHABLE(CONFIG_GAMEPORT) |
1165 | |
1166 | static void snd_cs4281_gameport_trigger(struct gameport *gameport) |
1167 | { |
1168 | struct cs4281 *chip = gameport_get_port_data(gameport); |
1169 | |
1170 | if (snd_BUG_ON(!chip)) |
1171 | return; |
1172 | snd_cs4281_pokeBA0(chip, BA0_JSPT, val: 0xff); |
1173 | } |
1174 | |
1175 | static unsigned char snd_cs4281_gameport_read(struct gameport *gameport) |
1176 | { |
1177 | struct cs4281 *chip = gameport_get_port_data(gameport); |
1178 | |
1179 | if (snd_BUG_ON(!chip)) |
1180 | return 0; |
1181 | return snd_cs4281_peekBA0(chip, BA0_JSPT); |
1182 | } |
1183 | |
1184 | #ifdef COOKED_MODE |
1185 | static int snd_cs4281_gameport_cooked_read(struct gameport *gameport, |
1186 | int *axes, int *buttons) |
1187 | { |
1188 | struct cs4281 *chip = gameport_get_port_data(gameport); |
1189 | unsigned js1, js2, jst; |
1190 | |
1191 | if (snd_BUG_ON(!chip)) |
1192 | return 0; |
1193 | |
1194 | js1 = snd_cs4281_peekBA0(chip, BA0_JSC1); |
1195 | js2 = snd_cs4281_peekBA0(chip, BA0_JSC2); |
1196 | jst = snd_cs4281_peekBA0(chip, BA0_JSPT); |
1197 | |
1198 | *buttons = (~jst >> 4) & 0x0F; |
1199 | |
1200 | axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF; |
1201 | axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF; |
1202 | axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF; |
1203 | axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF; |
1204 | |
1205 | for (jst = 0; jst < 4; ++jst) |
1206 | if (axes[jst] == 0xFFFF) axes[jst] = -1; |
1207 | return 0; |
1208 | } |
1209 | #else |
1210 | #define snd_cs4281_gameport_cooked_read NULL |
1211 | #endif |
1212 | |
1213 | static int snd_cs4281_gameport_open(struct gameport *gameport, int mode) |
1214 | { |
1215 | switch (mode) { |
1216 | #ifdef COOKED_MODE |
1217 | case GAMEPORT_MODE_COOKED: |
1218 | return 0; |
1219 | #endif |
1220 | case GAMEPORT_MODE_RAW: |
1221 | return 0; |
1222 | default: |
1223 | return -1; |
1224 | } |
1225 | return 0; |
1226 | } |
1227 | |
1228 | static int snd_cs4281_create_gameport(struct cs4281 *chip) |
1229 | { |
1230 | struct gameport *gp; |
1231 | |
1232 | chip->gameport = gp = gameport_allocate_port(); |
1233 | if (!gp) { |
1234 | dev_err(chip->card->dev, |
1235 | "cannot allocate memory for gameport\n" ); |
1236 | return -ENOMEM; |
1237 | } |
1238 | |
1239 | gameport_set_name(gameport: gp, name: "CS4281 Gameport" ); |
1240 | gameport_set_phys(gameport: gp, fmt: "pci%s/gameport0" , pci_name(pdev: chip->pci)); |
1241 | gameport_set_dev_parent(gp, &chip->pci->dev); |
1242 | gp->open = snd_cs4281_gameport_open; |
1243 | gp->read = snd_cs4281_gameport_read; |
1244 | gp->trigger = snd_cs4281_gameport_trigger; |
1245 | gp->cooked_read = snd_cs4281_gameport_cooked_read; |
1246 | gameport_set_port_data(gp, chip); |
1247 | |
1248 | snd_cs4281_pokeBA0(chip, BA0_JSIO, val: 0xFF); // ? |
1249 | snd_cs4281_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW); |
1250 | |
1251 | gameport_register_port(gp); |
1252 | |
1253 | return 0; |
1254 | } |
1255 | |
1256 | static void snd_cs4281_free_gameport(struct cs4281 *chip) |
1257 | { |
1258 | if (chip->gameport) { |
1259 | gameport_unregister_port(gameport: chip->gameport); |
1260 | chip->gameport = NULL; |
1261 | } |
1262 | } |
1263 | #else |
1264 | static inline int snd_cs4281_create_gameport(struct cs4281 *chip) { return -ENOSYS; } |
1265 | static inline void snd_cs4281_free_gameport(struct cs4281 *chip) { } |
1266 | #endif /* IS_REACHABLE(CONFIG_GAMEPORT) */ |
1267 | |
1268 | static void snd_cs4281_free(struct snd_card *card) |
1269 | { |
1270 | struct cs4281 *chip = card->private_data; |
1271 | |
1272 | snd_cs4281_free_gameport(chip); |
1273 | |
1274 | /* Mask interrupts */ |
1275 | snd_cs4281_pokeBA0(chip, BA0_HIMR, val: 0x7fffffff); |
1276 | /* Stop the DLL Clock logic. */ |
1277 | snd_cs4281_pokeBA0(chip, BA0_CLKCR1, val: 0); |
1278 | /* Sound System Power Management - Turn Everything OFF */ |
1279 | snd_cs4281_pokeBA0(chip, BA0_SSPM, val: 0); |
1280 | } |
1281 | |
1282 | static int snd_cs4281_chip_init(struct cs4281 *chip); /* defined below */ |
1283 | |
1284 | static int snd_cs4281_create(struct snd_card *card, |
1285 | struct pci_dev *pci, |
1286 | int dual_codec) |
1287 | { |
1288 | struct cs4281 *chip = card->private_data; |
1289 | int err; |
1290 | |
1291 | err = pcim_enable_device(pdev: pci); |
1292 | if (err < 0) |
1293 | return err; |
1294 | spin_lock_init(&chip->reg_lock); |
1295 | chip->card = card; |
1296 | chip->pci = pci; |
1297 | chip->irq = -1; |
1298 | pci_set_master(dev: pci); |
1299 | if (dual_codec < 0 || dual_codec > 3) { |
1300 | dev_err(card->dev, "invalid dual_codec option %d\n" , dual_codec); |
1301 | dual_codec = 0; |
1302 | } |
1303 | chip->dual_codec = dual_codec; |
1304 | |
1305 | err = pcim_iomap_regions(pdev: pci, mask: 0x03, name: "CS4281" ); /* 2 BARs */ |
1306 | if (err < 0) |
1307 | return err; |
1308 | chip->ba0_addr = pci_resource_start(pci, 0); |
1309 | chip->ba1_addr = pci_resource_start(pci, 1); |
1310 | |
1311 | chip->ba0 = pcim_iomap_table(pdev: pci)[0]; |
1312 | chip->ba1 = pcim_iomap_table(pdev: pci)[1]; |
1313 | |
1314 | if (devm_request_irq(dev: &pci->dev, irq: pci->irq, handler: snd_cs4281_interrupt, |
1315 | IRQF_SHARED, KBUILD_MODNAME, dev_id: chip)) { |
1316 | dev_err(card->dev, "unable to grab IRQ %d\n" , pci->irq); |
1317 | return -ENOMEM; |
1318 | } |
1319 | chip->irq = pci->irq; |
1320 | card->sync_irq = chip->irq; |
1321 | card->private_free = snd_cs4281_free; |
1322 | |
1323 | err = snd_cs4281_chip_init(chip); |
1324 | if (err) |
1325 | return err; |
1326 | |
1327 | snd_cs4281_proc_init(chip); |
1328 | return 0; |
1329 | } |
1330 | |
1331 | static int snd_cs4281_chip_init(struct cs4281 *chip) |
1332 | { |
1333 | unsigned int tmp; |
1334 | unsigned long end_time; |
1335 | int retry_count = 2; |
1336 | |
1337 | /* Having EPPMC.FPDN=1 prevent proper chip initialisation */ |
1338 | tmp = snd_cs4281_peekBA0(chip, BA0_EPPMC); |
1339 | if (tmp & BA0_EPPMC_FPDN) |
1340 | snd_cs4281_pokeBA0(chip, BA0_EPPMC, val: tmp & ~BA0_EPPMC_FPDN); |
1341 | |
1342 | __retry: |
1343 | tmp = snd_cs4281_peekBA0(chip, BA0_CFLR); |
1344 | if (tmp != BA0_CFLR_DEFAULT) { |
1345 | snd_cs4281_pokeBA0(chip, BA0_CFLR, BA0_CFLR_DEFAULT); |
1346 | tmp = snd_cs4281_peekBA0(chip, BA0_CFLR); |
1347 | if (tmp != BA0_CFLR_DEFAULT) { |
1348 | dev_err(chip->card->dev, |
1349 | "CFLR setup failed (0x%x)\n" , tmp); |
1350 | return -EIO; |
1351 | } |
1352 | } |
1353 | |
1354 | /* Set the 'Configuration Write Protect' register |
1355 | * to 4281h. Allows vendor-defined configuration |
1356 | * space between 0e4h and 0ffh to be written. */ |
1357 | snd_cs4281_pokeBA0(chip, BA0_CWPR, val: 0x4281); |
1358 | |
1359 | tmp = snd_cs4281_peekBA0(chip, BA0_SERC1); |
1360 | if (tmp != (BA0_SERC1_SO1EN | BA0_SERC1_AC97)) { |
1361 | dev_err(chip->card->dev, |
1362 | "SERC1 AC'97 check failed (0x%x)\n" , tmp); |
1363 | return -EIO; |
1364 | } |
1365 | tmp = snd_cs4281_peekBA0(chip, BA0_SERC2); |
1366 | if (tmp != (BA0_SERC2_SI1EN | BA0_SERC2_AC97)) { |
1367 | dev_err(chip->card->dev, |
1368 | "SERC2 AC'97 check failed (0x%x)\n" , tmp); |
1369 | return -EIO; |
1370 | } |
1371 | |
1372 | /* Sound System Power Management */ |
1373 | snd_cs4281_pokeBA0(chip, BA0_SSPM, BA0_SSPM_MIXEN | BA0_SSPM_CSRCEN | |
1374 | BA0_SSPM_PSRCEN | BA0_SSPM_JSEN | |
1375 | BA0_SSPM_ACLEN | BA0_SSPM_FMEN); |
1376 | |
1377 | /* Serial Port Power Management */ |
1378 | /* Blast the clock control register to zero so that the |
1379 | * PLL starts out in a known state, and blast the master serial |
1380 | * port control register to zero so that the serial ports also |
1381 | * start out in a known state. */ |
1382 | snd_cs4281_pokeBA0(chip, BA0_CLKCR1, val: 0); |
1383 | snd_cs4281_pokeBA0(chip, BA0_SERMC, val: 0); |
1384 | |
1385 | /* Make ESYN go to zero to turn off |
1386 | * the Sync pulse on the AC97 link. */ |
1387 | snd_cs4281_pokeBA0(chip, BA0_ACCTL, val: 0); |
1388 | udelay(50); |
1389 | |
1390 | /* Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97 |
1391 | * spec) and then drive it high. This is done for non AC97 modes since |
1392 | * there might be logic external to the CS4281 that uses the ARST# line |
1393 | * for a reset. */ |
1394 | snd_cs4281_pokeBA0(chip, BA0_SPMC, val: 0); |
1395 | udelay(50); |
1396 | snd_cs4281_pokeBA0(chip, BA0_SPMC, BA0_SPMC_RSTN); |
1397 | msleep(msecs: 50); |
1398 | |
1399 | if (chip->dual_codec) |
1400 | snd_cs4281_pokeBA0(chip, BA0_SPMC, BA0_SPMC_RSTN | BA0_SPMC_ASDI2E); |
1401 | |
1402 | /* |
1403 | * Set the serial port timing configuration. |
1404 | */ |
1405 | snd_cs4281_pokeBA0(chip, BA0_SERMC, |
1406 | val: (chip->dual_codec ? BA0_SERMC_TCID(chip->dual_codec) : BA0_SERMC_TCID(1)) | |
1407 | BA0_SERMC_PTC_AC97 | BA0_SERMC_MSPE); |
1408 | |
1409 | /* |
1410 | * Start the DLL Clock logic. |
1411 | */ |
1412 | snd_cs4281_pokeBA0(chip, BA0_CLKCR1, BA0_CLKCR1_DLLP); |
1413 | msleep(msecs: 50); |
1414 | snd_cs4281_pokeBA0(chip, BA0_CLKCR1, BA0_CLKCR1_SWCE | BA0_CLKCR1_DLLP); |
1415 | |
1416 | /* |
1417 | * Wait for the DLL ready signal from the clock logic. |
1418 | */ |
1419 | end_time = jiffies + HZ; |
1420 | do { |
1421 | /* |
1422 | * Read the AC97 status register to see if we've seen a CODEC |
1423 | * signal from the AC97 codec. |
1424 | */ |
1425 | if (snd_cs4281_peekBA0(chip, BA0_CLKCR1) & BA0_CLKCR1_DLLRDY) |
1426 | goto __ok0; |
1427 | schedule_timeout_uninterruptible(timeout: 1); |
1428 | } while (time_after_eq(end_time, jiffies)); |
1429 | |
1430 | dev_err(chip->card->dev, "DLLRDY not seen\n" ); |
1431 | return -EIO; |
1432 | |
1433 | __ok0: |
1434 | |
1435 | /* |
1436 | * The first thing we do here is to enable sync generation. As soon |
1437 | * as we start receiving bit clock, we'll start producing the SYNC |
1438 | * signal. |
1439 | */ |
1440 | snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_ESYN); |
1441 | |
1442 | /* |
1443 | * Wait for the codec ready signal from the AC97 codec. |
1444 | */ |
1445 | end_time = jiffies + HZ; |
1446 | do { |
1447 | /* |
1448 | * Read the AC97 status register to see if we've seen a CODEC |
1449 | * signal from the AC97 codec. |
1450 | */ |
1451 | if (snd_cs4281_peekBA0(chip, BA0_ACSTS) & BA0_ACSTS_CRDY) |
1452 | goto __ok1; |
1453 | schedule_timeout_uninterruptible(timeout: 1); |
1454 | } while (time_after_eq(end_time, jiffies)); |
1455 | |
1456 | dev_err(chip->card->dev, |
1457 | "never read codec ready from AC'97 (0x%x)\n" , |
1458 | snd_cs4281_peekBA0(chip, BA0_ACSTS)); |
1459 | return -EIO; |
1460 | |
1461 | __ok1: |
1462 | if (chip->dual_codec) { |
1463 | end_time = jiffies + HZ; |
1464 | do { |
1465 | if (snd_cs4281_peekBA0(chip, BA0_ACSTS2) & BA0_ACSTS_CRDY) |
1466 | goto __codec2_ok; |
1467 | schedule_timeout_uninterruptible(timeout: 1); |
1468 | } while (time_after_eq(end_time, jiffies)); |
1469 | dev_info(chip->card->dev, |
1470 | "secondary codec doesn't respond. disable it...\n" ); |
1471 | chip->dual_codec = 0; |
1472 | __codec2_ok: ; |
1473 | } |
1474 | |
1475 | /* |
1476 | * Assert the valid frame signal so that we can start sending commands |
1477 | * to the AC97 codec. |
1478 | */ |
1479 | |
1480 | snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_VFRM | BA0_ACCTL_ESYN); |
1481 | |
1482 | /* |
1483 | * Wait until we've sampled input slots 3 and 4 as valid, meaning that |
1484 | * the codec is pumping ADC data across the AC-link. |
1485 | */ |
1486 | |
1487 | end_time = jiffies + HZ; |
1488 | do { |
1489 | /* |
1490 | * Read the input slot valid register and see if input slots 3 |
1491 | * 4 are valid yet. |
1492 | */ |
1493 | if ((snd_cs4281_peekBA0(chip, BA0_ACISV) & (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4))) == (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4))) |
1494 | goto __ok2; |
1495 | schedule_timeout_uninterruptible(timeout: 1); |
1496 | } while (time_after_eq(end_time, jiffies)); |
1497 | |
1498 | if (--retry_count > 0) |
1499 | goto __retry; |
1500 | dev_err(chip->card->dev, "never read ISV3 and ISV4 from AC'97\n" ); |
1501 | return -EIO; |
1502 | |
1503 | __ok2: |
1504 | |
1505 | /* |
1506 | * Now, assert valid frame and the slot 3 and 4 valid bits. This will |
1507 | * commense the transfer of digital audio data to the AC97 codec. |
1508 | */ |
1509 | snd_cs4281_pokeBA0(chip, BA0_ACOSV, BA0_ACOSV_SLV(3) | BA0_ACOSV_SLV(4)); |
1510 | |
1511 | /* |
1512 | * Initialize DMA structures |
1513 | */ |
1514 | for (tmp = 0; tmp < 4; tmp++) { |
1515 | struct cs4281_dma *dma = &chip->dma[tmp]; |
1516 | dma->regDBA = BA0_DBA0 + (tmp * 0x10); |
1517 | dma->regDCA = BA0_DCA0 + (tmp * 0x10); |
1518 | dma->regDBC = BA0_DBC0 + (tmp * 0x10); |
1519 | dma->regDCC = BA0_DCC0 + (tmp * 0x10); |
1520 | dma->regDMR = BA0_DMR0 + (tmp * 8); |
1521 | dma->regDCR = BA0_DCR0 + (tmp * 8); |
1522 | dma->regHDSR = BA0_HDSR0 + (tmp * 4); |
1523 | dma->regFCR = BA0_FCR0 + (tmp * 4); |
1524 | dma->regFSIC = BA0_FSIC0 + (tmp * 4); |
1525 | dma->fifo_offset = tmp * CS4281_FIFO_SIZE; |
1526 | snd_cs4281_pokeBA0(chip, offset: dma->regFCR, |
1527 | BA0_FCR_LS(31) | |
1528 | BA0_FCR_RS(31) | |
1529 | BA0_FCR_SZ(CS4281_FIFO_SIZE) | |
1530 | BA0_FCR_OF(dma->fifo_offset)); |
1531 | } |
1532 | |
1533 | chip->src_left_play_slot = 0; /* AC'97 left PCM playback (3) */ |
1534 | chip->src_right_play_slot = 1; /* AC'97 right PCM playback (4) */ |
1535 | chip->src_left_rec_slot = 10; /* AC'97 left PCM record (3) */ |
1536 | chip->src_right_rec_slot = 11; /* AC'97 right PCM record (4) */ |
1537 | |
1538 | /* Activate wave playback FIFO for FM playback */ |
1539 | chip->dma[0].valFCR = BA0_FCR_FEN | BA0_FCR_LS(0) | |
1540 | BA0_FCR_RS(1) | |
1541 | BA0_FCR_SZ(CS4281_FIFO_SIZE) | |
1542 | BA0_FCR_OF(chip->dma[0].fifo_offset); |
1543 | snd_cs4281_pokeBA0(chip, offset: chip->dma[0].regFCR, val: chip->dma[0].valFCR); |
1544 | snd_cs4281_pokeBA0(chip, BA0_SRCSA, val: (chip->src_left_play_slot << 0) | |
1545 | (chip->src_right_play_slot << 8) | |
1546 | (chip->src_left_rec_slot << 16) | |
1547 | (chip->src_right_rec_slot << 24)); |
1548 | |
1549 | /* Initialize digital volume */ |
1550 | snd_cs4281_pokeBA0(chip, BA0_PPLVC, val: 0); |
1551 | snd_cs4281_pokeBA0(chip, BA0_PPRVC, val: 0); |
1552 | |
1553 | /* Enable IRQs */ |
1554 | snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI); |
1555 | /* Unmask interrupts */ |
1556 | snd_cs4281_pokeBA0(chip, BA0_HIMR, val: 0x7fffffff & ~( |
1557 | BA0_HISR_MIDI | |
1558 | BA0_HISR_DMAI | |
1559 | BA0_HISR_DMA(0) | |
1560 | BA0_HISR_DMA(1) | |
1561 | BA0_HISR_DMA(2) | |
1562 | BA0_HISR_DMA(3))); |
1563 | |
1564 | return 0; |
1565 | } |
1566 | |
1567 | /* |
1568 | * MIDI section |
1569 | */ |
1570 | |
1571 | static void snd_cs4281_midi_reset(struct cs4281 *chip) |
1572 | { |
1573 | snd_cs4281_pokeBA0(chip, BA0_MIDCR, val: chip->midcr | BA0_MIDCR_MRST); |
1574 | udelay(100); |
1575 | snd_cs4281_pokeBA0(chip, BA0_MIDCR, val: chip->midcr); |
1576 | } |
1577 | |
1578 | static int snd_cs4281_midi_input_open(struct snd_rawmidi_substream *substream) |
1579 | { |
1580 | struct cs4281 *chip = substream->rmidi->private_data; |
1581 | |
1582 | spin_lock_irq(lock: &chip->reg_lock); |
1583 | chip->midcr |= BA0_MIDCR_RXE; |
1584 | chip->midi_input = substream; |
1585 | if (!(chip->uartm & CS4281_MODE_OUTPUT)) { |
1586 | snd_cs4281_midi_reset(chip); |
1587 | } else { |
1588 | snd_cs4281_pokeBA0(chip, BA0_MIDCR, val: chip->midcr); |
1589 | } |
1590 | spin_unlock_irq(lock: &chip->reg_lock); |
1591 | return 0; |
1592 | } |
1593 | |
1594 | static int snd_cs4281_midi_input_close(struct snd_rawmidi_substream *substream) |
1595 | { |
1596 | struct cs4281 *chip = substream->rmidi->private_data; |
1597 | |
1598 | spin_lock_irq(lock: &chip->reg_lock); |
1599 | chip->midcr &= ~(BA0_MIDCR_RXE | BA0_MIDCR_RIE); |
1600 | chip->midi_input = NULL; |
1601 | if (!(chip->uartm & CS4281_MODE_OUTPUT)) { |
1602 | snd_cs4281_midi_reset(chip); |
1603 | } else { |
1604 | snd_cs4281_pokeBA0(chip, BA0_MIDCR, val: chip->midcr); |
1605 | } |
1606 | chip->uartm &= ~CS4281_MODE_INPUT; |
1607 | spin_unlock_irq(lock: &chip->reg_lock); |
1608 | return 0; |
1609 | } |
1610 | |
1611 | static int snd_cs4281_midi_output_open(struct snd_rawmidi_substream *substream) |
1612 | { |
1613 | struct cs4281 *chip = substream->rmidi->private_data; |
1614 | |
1615 | spin_lock_irq(lock: &chip->reg_lock); |
1616 | chip->uartm |= CS4281_MODE_OUTPUT; |
1617 | chip->midcr |= BA0_MIDCR_TXE; |
1618 | chip->midi_output = substream; |
1619 | if (!(chip->uartm & CS4281_MODE_INPUT)) { |
1620 | snd_cs4281_midi_reset(chip); |
1621 | } else { |
1622 | snd_cs4281_pokeBA0(chip, BA0_MIDCR, val: chip->midcr); |
1623 | } |
1624 | spin_unlock_irq(lock: &chip->reg_lock); |
1625 | return 0; |
1626 | } |
1627 | |
1628 | static int snd_cs4281_midi_output_close(struct snd_rawmidi_substream *substream) |
1629 | { |
1630 | struct cs4281 *chip = substream->rmidi->private_data; |
1631 | |
1632 | spin_lock_irq(lock: &chip->reg_lock); |
1633 | chip->midcr &= ~(BA0_MIDCR_TXE | BA0_MIDCR_TIE); |
1634 | chip->midi_output = NULL; |
1635 | if (!(chip->uartm & CS4281_MODE_INPUT)) { |
1636 | snd_cs4281_midi_reset(chip); |
1637 | } else { |
1638 | snd_cs4281_pokeBA0(chip, BA0_MIDCR, val: chip->midcr); |
1639 | } |
1640 | chip->uartm &= ~CS4281_MODE_OUTPUT; |
1641 | spin_unlock_irq(lock: &chip->reg_lock); |
1642 | return 0; |
1643 | } |
1644 | |
1645 | static void snd_cs4281_midi_input_trigger(struct snd_rawmidi_substream *substream, int up) |
1646 | { |
1647 | unsigned long flags; |
1648 | struct cs4281 *chip = substream->rmidi->private_data; |
1649 | |
1650 | spin_lock_irqsave(&chip->reg_lock, flags); |
1651 | if (up) { |
1652 | if ((chip->midcr & BA0_MIDCR_RIE) == 0) { |
1653 | chip->midcr |= BA0_MIDCR_RIE; |
1654 | snd_cs4281_pokeBA0(chip, BA0_MIDCR, val: chip->midcr); |
1655 | } |
1656 | } else { |
1657 | if (chip->midcr & BA0_MIDCR_RIE) { |
1658 | chip->midcr &= ~BA0_MIDCR_RIE; |
1659 | snd_cs4281_pokeBA0(chip, BA0_MIDCR, val: chip->midcr); |
1660 | } |
1661 | } |
1662 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
1663 | } |
1664 | |
1665 | static void snd_cs4281_midi_output_trigger(struct snd_rawmidi_substream *substream, int up) |
1666 | { |
1667 | unsigned long flags; |
1668 | struct cs4281 *chip = substream->rmidi->private_data; |
1669 | unsigned char byte; |
1670 | |
1671 | spin_lock_irqsave(&chip->reg_lock, flags); |
1672 | if (up) { |
1673 | if ((chip->midcr & BA0_MIDCR_TIE) == 0) { |
1674 | chip->midcr |= BA0_MIDCR_TIE; |
1675 | /* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */ |
1676 | while ((chip->midcr & BA0_MIDCR_TIE) && |
1677 | (snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_TBF) == 0) { |
1678 | if (snd_rawmidi_transmit(substream, buffer: &byte, count: 1) != 1) { |
1679 | chip->midcr &= ~BA0_MIDCR_TIE; |
1680 | } else { |
1681 | snd_cs4281_pokeBA0(chip, BA0_MIDWP, val: byte); |
1682 | } |
1683 | } |
1684 | snd_cs4281_pokeBA0(chip, BA0_MIDCR, val: chip->midcr); |
1685 | } |
1686 | } else { |
1687 | if (chip->midcr & BA0_MIDCR_TIE) { |
1688 | chip->midcr &= ~BA0_MIDCR_TIE; |
1689 | snd_cs4281_pokeBA0(chip, BA0_MIDCR, val: chip->midcr); |
1690 | } |
1691 | } |
1692 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
1693 | } |
1694 | |
1695 | static const struct snd_rawmidi_ops snd_cs4281_midi_output = |
1696 | { |
1697 | .open = snd_cs4281_midi_output_open, |
1698 | .close = snd_cs4281_midi_output_close, |
1699 | .trigger = snd_cs4281_midi_output_trigger, |
1700 | }; |
1701 | |
1702 | static const struct snd_rawmidi_ops snd_cs4281_midi_input = |
1703 | { |
1704 | .open = snd_cs4281_midi_input_open, |
1705 | .close = snd_cs4281_midi_input_close, |
1706 | .trigger = snd_cs4281_midi_input_trigger, |
1707 | }; |
1708 | |
1709 | static int snd_cs4281_midi(struct cs4281 *chip, int device) |
1710 | { |
1711 | struct snd_rawmidi *rmidi; |
1712 | int err; |
1713 | |
1714 | err = snd_rawmidi_new(card: chip->card, id: "CS4281" , device, output_count: 1, input_count: 1, rmidi: &rmidi); |
1715 | if (err < 0) |
1716 | return err; |
1717 | strcpy(p: rmidi->name, q: "CS4281" ); |
1718 | snd_rawmidi_set_ops(rmidi, stream: SNDRV_RAWMIDI_STREAM_OUTPUT, ops: &snd_cs4281_midi_output); |
1719 | snd_rawmidi_set_ops(rmidi, stream: SNDRV_RAWMIDI_STREAM_INPUT, ops: &snd_cs4281_midi_input); |
1720 | rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX; |
1721 | rmidi->private_data = chip; |
1722 | chip->rmidi = rmidi; |
1723 | return 0; |
1724 | } |
1725 | |
1726 | /* |
1727 | * Interrupt handler |
1728 | */ |
1729 | |
1730 | static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id) |
1731 | { |
1732 | struct cs4281 *chip = dev_id; |
1733 | unsigned int status, dma, val; |
1734 | struct cs4281_dma *cdma; |
1735 | |
1736 | if (chip == NULL) |
1737 | return IRQ_NONE; |
1738 | status = snd_cs4281_peekBA0(chip, BA0_HISR); |
1739 | if ((status & 0x7fffffff) == 0) { |
1740 | snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI); |
1741 | return IRQ_NONE; |
1742 | } |
1743 | |
1744 | if (status & (BA0_HISR_DMA(0)|BA0_HISR_DMA(1)|BA0_HISR_DMA(2)|BA0_HISR_DMA(3))) { |
1745 | for (dma = 0; dma < 4; dma++) |
1746 | if (status & BA0_HISR_DMA(dma)) { |
1747 | cdma = &chip->dma[dma]; |
1748 | spin_lock(lock: &chip->reg_lock); |
1749 | /* ack DMA IRQ */ |
1750 | val = snd_cs4281_peekBA0(chip, offset: cdma->regHDSR); |
1751 | /* workaround, sometimes CS4281 acknowledges */ |
1752 | /* end or middle transfer position twice */ |
1753 | cdma->frag++; |
1754 | if ((val & BA0_HDSR_DHTC) && !(cdma->frag & 1)) { |
1755 | cdma->frag--; |
1756 | chip->spurious_dhtc_irq++; |
1757 | spin_unlock(lock: &chip->reg_lock); |
1758 | continue; |
1759 | } |
1760 | if ((val & BA0_HDSR_DTC) && (cdma->frag & 1)) { |
1761 | cdma->frag--; |
1762 | chip->spurious_dtc_irq++; |
1763 | spin_unlock(lock: &chip->reg_lock); |
1764 | continue; |
1765 | } |
1766 | spin_unlock(lock: &chip->reg_lock); |
1767 | snd_pcm_period_elapsed(substream: cdma->substream); |
1768 | } |
1769 | } |
1770 | |
1771 | if ((status & BA0_HISR_MIDI) && chip->rmidi) { |
1772 | unsigned char c; |
1773 | |
1774 | spin_lock(lock: &chip->reg_lock); |
1775 | while ((snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_RBE) == 0) { |
1776 | c = snd_cs4281_peekBA0(chip, BA0_MIDRP); |
1777 | if ((chip->midcr & BA0_MIDCR_RIE) == 0) |
1778 | continue; |
1779 | snd_rawmidi_receive(substream: chip->midi_input, buffer: &c, count: 1); |
1780 | } |
1781 | while ((snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_TBF) == 0) { |
1782 | if ((chip->midcr & BA0_MIDCR_TIE) == 0) |
1783 | break; |
1784 | if (snd_rawmidi_transmit(substream: chip->midi_output, buffer: &c, count: 1) != 1) { |
1785 | chip->midcr &= ~BA0_MIDCR_TIE; |
1786 | snd_cs4281_pokeBA0(chip, BA0_MIDCR, val: chip->midcr); |
1787 | break; |
1788 | } |
1789 | snd_cs4281_pokeBA0(chip, BA0_MIDWP, val: c); |
1790 | } |
1791 | spin_unlock(lock: &chip->reg_lock); |
1792 | } |
1793 | |
1794 | /* EOI to the PCI part... reenables interrupts */ |
1795 | snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI); |
1796 | |
1797 | return IRQ_HANDLED; |
1798 | } |
1799 | |
1800 | |
1801 | /* |
1802 | * OPL3 command |
1803 | */ |
1804 | static void snd_cs4281_opl3_command(struct snd_opl3 *opl3, unsigned short cmd, |
1805 | unsigned char val) |
1806 | { |
1807 | unsigned long flags; |
1808 | struct cs4281 *chip = opl3->private_data; |
1809 | void __iomem *port; |
1810 | |
1811 | if (cmd & OPL3_RIGHT) |
1812 | port = chip->ba0 + BA0_B1AP; /* right port */ |
1813 | else |
1814 | port = chip->ba0 + BA0_B0AP; /* left port */ |
1815 | |
1816 | spin_lock_irqsave(&opl3->reg_lock, flags); |
1817 | |
1818 | writel(val: (unsigned int)cmd, addr: port); |
1819 | udelay(10); |
1820 | |
1821 | writel(val: (unsigned int)val, addr: port + 4); |
1822 | udelay(30); |
1823 | |
1824 | spin_unlock_irqrestore(lock: &opl3->reg_lock, flags); |
1825 | } |
1826 | |
1827 | static int __snd_cs4281_probe(struct pci_dev *pci, |
1828 | const struct pci_device_id *pci_id) |
1829 | { |
1830 | static int dev; |
1831 | struct snd_card *card; |
1832 | struct cs4281 *chip; |
1833 | struct snd_opl3 *opl3; |
1834 | int err; |
1835 | |
1836 | if (dev >= SNDRV_CARDS) |
1837 | return -ENODEV; |
1838 | if (!enable[dev]) { |
1839 | dev++; |
1840 | return -ENOENT; |
1841 | } |
1842 | |
1843 | err = snd_devm_card_new(parent: &pci->dev, idx: index[dev], xid: id[dev], THIS_MODULE, |
1844 | extra_size: sizeof(*chip), card_ret: &card); |
1845 | if (err < 0) |
1846 | return err; |
1847 | chip = card->private_data; |
1848 | |
1849 | err = snd_cs4281_create(card, pci, dual_codec: dual_codec[dev]); |
1850 | if (err < 0) |
1851 | return err; |
1852 | |
1853 | err = snd_cs4281_mixer(chip); |
1854 | if (err < 0) |
1855 | return err; |
1856 | err = snd_cs4281_pcm(chip, device: 0); |
1857 | if (err < 0) |
1858 | return err; |
1859 | err = snd_cs4281_midi(chip, device: 0); |
1860 | if (err < 0) |
1861 | return err; |
1862 | err = snd_opl3_new(card, OPL3_HW_OPL3_CS4281, ropl3: &opl3); |
1863 | if (err < 0) |
1864 | return err; |
1865 | opl3->private_data = chip; |
1866 | opl3->command = snd_cs4281_opl3_command; |
1867 | snd_opl3_init(opl3); |
1868 | err = snd_opl3_hwdep_new(opl3, device: 0, seq_device: 1, NULL); |
1869 | if (err < 0) |
1870 | return err; |
1871 | snd_cs4281_create_gameport(chip); |
1872 | strcpy(p: card->driver, q: "CS4281" ); |
1873 | strcpy(p: card->shortname, q: "Cirrus Logic CS4281" ); |
1874 | sprintf(buf: card->longname, fmt: "%s at 0x%lx, irq %d" , |
1875 | card->shortname, |
1876 | chip->ba0_addr, |
1877 | chip->irq); |
1878 | |
1879 | err = snd_card_register(card); |
1880 | if (err < 0) |
1881 | return err; |
1882 | |
1883 | pci_set_drvdata(pdev: pci, data: card); |
1884 | dev++; |
1885 | return 0; |
1886 | } |
1887 | |
1888 | static int snd_cs4281_probe(struct pci_dev *pci, |
1889 | const struct pci_device_id *pci_id) |
1890 | { |
1891 | return snd_card_free_on_error(dev: &pci->dev, ret: __snd_cs4281_probe(pci, pci_id)); |
1892 | } |
1893 | |
1894 | /* |
1895 | * Power Management |
1896 | */ |
1897 | static const int saved_regs[SUSPEND_REGISTERS] = { |
1898 | BA0_JSCTL, |
1899 | BA0_GPIOR, |
1900 | BA0_SSCR, |
1901 | BA0_MIDCR, |
1902 | BA0_SRCSA, |
1903 | BA0_PASR, |
1904 | BA0_CASR, |
1905 | BA0_DACSR, |
1906 | BA0_ADCSR, |
1907 | BA0_FMLVC, |
1908 | BA0_FMRVC, |
1909 | BA0_PPLVC, |
1910 | BA0_PPRVC, |
1911 | }; |
1912 | |
1913 | #define CLKCR1_CKRA 0x00010000L |
1914 | |
1915 | static int cs4281_suspend(struct device *dev) |
1916 | { |
1917 | struct snd_card *card = dev_get_drvdata(dev); |
1918 | struct cs4281 *chip = card->private_data; |
1919 | u32 ulCLK; |
1920 | unsigned int i; |
1921 | |
1922 | snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); |
1923 | snd_ac97_suspend(ac97: chip->ac97); |
1924 | snd_ac97_suspend(ac97: chip->ac97_secondary); |
1925 | |
1926 | ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); |
1927 | ulCLK |= CLKCR1_CKRA; |
1928 | snd_cs4281_pokeBA0(chip, BA0_CLKCR1, val: ulCLK); |
1929 | |
1930 | /* Disable interrupts. */ |
1931 | snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_CHGM); |
1932 | |
1933 | /* remember the status registers */ |
1934 | for (i = 0; i < ARRAY_SIZE(saved_regs); i++) |
1935 | if (saved_regs[i]) |
1936 | chip->suspend_regs[i] = snd_cs4281_peekBA0(chip, offset: saved_regs[i]); |
1937 | |
1938 | /* Turn off the serial ports. */ |
1939 | snd_cs4281_pokeBA0(chip, BA0_SERMC, val: 0); |
1940 | |
1941 | /* Power off FM, Joystick, AC link, */ |
1942 | snd_cs4281_pokeBA0(chip, BA0_SSPM, val: 0); |
1943 | |
1944 | /* DLL off. */ |
1945 | snd_cs4281_pokeBA0(chip, BA0_CLKCR1, val: 0); |
1946 | |
1947 | /* AC link off. */ |
1948 | snd_cs4281_pokeBA0(chip, BA0_SPMC, val: 0); |
1949 | |
1950 | ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); |
1951 | ulCLK &= ~CLKCR1_CKRA; |
1952 | snd_cs4281_pokeBA0(chip, BA0_CLKCR1, val: ulCLK); |
1953 | return 0; |
1954 | } |
1955 | |
1956 | static int cs4281_resume(struct device *dev) |
1957 | { |
1958 | struct snd_card *card = dev_get_drvdata(dev); |
1959 | struct cs4281 *chip = card->private_data; |
1960 | unsigned int i; |
1961 | u32 ulCLK; |
1962 | |
1963 | ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); |
1964 | ulCLK |= CLKCR1_CKRA; |
1965 | snd_cs4281_pokeBA0(chip, BA0_CLKCR1, val: ulCLK); |
1966 | |
1967 | snd_cs4281_chip_init(chip); |
1968 | |
1969 | /* restore the status registers */ |
1970 | for (i = 0; i < ARRAY_SIZE(saved_regs); i++) |
1971 | if (saved_regs[i]) |
1972 | snd_cs4281_pokeBA0(chip, offset: saved_regs[i], val: chip->suspend_regs[i]); |
1973 | |
1974 | snd_ac97_resume(ac97: chip->ac97); |
1975 | snd_ac97_resume(ac97: chip->ac97_secondary); |
1976 | |
1977 | ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); |
1978 | ulCLK &= ~CLKCR1_CKRA; |
1979 | snd_cs4281_pokeBA0(chip, BA0_CLKCR1, val: ulCLK); |
1980 | |
1981 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
1982 | return 0; |
1983 | } |
1984 | |
1985 | static DEFINE_SIMPLE_DEV_PM_OPS(cs4281_pm, cs4281_suspend, cs4281_resume); |
1986 | |
1987 | static struct pci_driver cs4281_driver = { |
1988 | .name = KBUILD_MODNAME, |
1989 | .id_table = snd_cs4281_ids, |
1990 | .probe = snd_cs4281_probe, |
1991 | .driver = { |
1992 | .pm = &cs4281_pm, |
1993 | }, |
1994 | }; |
1995 | |
1996 | module_pci_driver(cs4281_driver); |
1997 | |