1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 Mantis PCI bridge driver
4
5 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
6
7 */
8
9 #include <linux/module.h>
10 #include <linux/kernel.h>
11 #include <linux/pci.h>
12 #include <linux/slab.h>
13 #include <asm/irq.h>
14 #include <linux/interrupt.h>
15 #include <media/rc-map.h>
16
17 #include <media/dmxdev.h>
18 #include <media/dvbdev.h>
19 #include <media/dvb_demux.h>
20 #include <media/dvb_frontend.h>
21 #include <media/dvb_net.h>
22
23 #include "mantis_common.h"
24
25 #include "mantis_vp1033.h"
26 #include "mantis_vp1034.h"
27 #include "mantis_vp1041.h"
28 #include "mantis_vp2033.h"
29 #include "mantis_vp2040.h"
30 #include "mantis_vp3030.h"
31
32 #include "mantis_dma.h"
33 #include "mantis_ca.h"
34 #include "mantis_dvb.h"
35 #include "mantis_uart.h"
36 #include "mantis_ioc.h"
37 #include "mantis_pci.h"
38 #include "mantis_i2c.h"
39 #include "mantis_reg.h"
40 #include "mantis_input.h"
41
42 static unsigned int verbose;
43 module_param(verbose, int, 0644);
44 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 0 (no)");
45
46 static int devs;
47
48 #define DRIVER_NAME "Mantis"
49
50 static char *label[10] = {
51 "DMA",
52 "IRQ-0",
53 "IRQ-1",
54 "OCERR",
55 "PABRT",
56 "RIPRR",
57 "PPERR",
58 "FTRGT",
59 "RISCI",
60 "RACK"
61 };
62
mantis_irq_handler(int irq,void * dev_id)63 static irqreturn_t mantis_irq_handler(int irq, void *dev_id)
64 {
65 u32 stat = 0, mask = 0;
66 u32 rst_stat = 0, rst_mask = 0;
67
68 struct mantis_pci *mantis;
69 struct mantis_ca *ca;
70
71 mantis = (struct mantis_pci *) dev_id;
72 if (unlikely(!mantis))
73 return IRQ_NONE;
74 ca = mantis->mantis_ca;
75
76 stat = mmread(MANTIS_INT_STAT);
77 mask = mmread(MANTIS_INT_MASK);
78 if (!(stat & mask))
79 return IRQ_NONE;
80
81 rst_mask = MANTIS_GPIF_WRACK |
82 MANTIS_GPIF_OTHERR |
83 MANTIS_SBUF_WSTO |
84 MANTIS_GPIF_EXTIRQ;
85
86 rst_stat = mmread(MANTIS_GPIF_STATUS);
87 rst_stat &= rst_mask;
88 mmwrite(rst_stat, MANTIS_GPIF_STATUS);
89
90 mantis->mantis_int_stat = stat;
91 mantis->mantis_int_mask = mask;
92 dprintk(MANTIS_DEBUG, 0, "\n-- Stat=<%02x> Mask=<%02x> --", stat, mask);
93 if (stat & MANTIS_INT_RISCEN) {
94 dprintk(MANTIS_DEBUG, 0, "<%s>", label[0]);
95 }
96 if (stat & MANTIS_INT_IRQ0) {
97 dprintk(MANTIS_DEBUG, 0, "<%s>", label[1]);
98 mantis->gpif_status = rst_stat;
99 wake_up(&ca->hif_write_wq);
100 schedule_work(&ca->hif_evm_work);
101 }
102 if (stat & MANTIS_INT_IRQ1) {
103 dprintk(MANTIS_DEBUG, 0, "<%s>", label[2]);
104 spin_lock(&mantis->intmask_lock);
105 mmwrite(mmread(MANTIS_INT_MASK) & ~MANTIS_INT_IRQ1,
106 MANTIS_INT_MASK);
107 spin_unlock(&mantis->intmask_lock);
108 schedule_work(&mantis->uart_work);
109 }
110 if (stat & MANTIS_INT_OCERR) {
111 dprintk(MANTIS_DEBUG, 0, "<%s>", label[3]);
112 }
113 if (stat & MANTIS_INT_PABORT) {
114 dprintk(MANTIS_DEBUG, 0, "<%s>", label[4]);
115 }
116 if (stat & MANTIS_INT_RIPERR) {
117 dprintk(MANTIS_DEBUG, 0, "<%s>", label[5]);
118 }
119 if (stat & MANTIS_INT_PPERR) {
120 dprintk(MANTIS_DEBUG, 0, "<%s>", label[6]);
121 }
122 if (stat & MANTIS_INT_FTRGT) {
123 dprintk(MANTIS_DEBUG, 0, "<%s>", label[7]);
124 }
125 if (stat & MANTIS_INT_RISCI) {
126 dprintk(MANTIS_DEBUG, 0, "<%s>", label[8]);
127 mantis->busy_block = (stat & MANTIS_INT_RISCSTAT) >> 28;
128 queue_work(system_bh_wq, &mantis->bh_work);
129 }
130 if (stat & MANTIS_INT_I2CDONE) {
131 dprintk(MANTIS_DEBUG, 0, "<%s>", label[9]);
132 wake_up(&mantis->i2c_wq);
133 }
134 mmwrite(stat, MANTIS_INT_STAT);
135 stat &= ~(MANTIS_INT_RISCEN | MANTIS_INT_I2CDONE |
136 MANTIS_INT_I2CRACK | MANTIS_INT_PCMCIA7 |
137 MANTIS_INT_PCMCIA6 | MANTIS_INT_PCMCIA5 |
138 MANTIS_INT_PCMCIA4 | MANTIS_INT_PCMCIA3 |
139 MANTIS_INT_PCMCIA2 | MANTIS_INT_PCMCIA1 |
140 MANTIS_INT_PCMCIA0 | MANTIS_INT_IRQ1 |
141 MANTIS_INT_IRQ0 | MANTIS_INT_OCERR |
142 MANTIS_INT_PABORT | MANTIS_INT_RIPERR |
143 MANTIS_INT_PPERR | MANTIS_INT_FTRGT |
144 MANTIS_INT_RISCI);
145
146 if (stat)
147 dprintk(MANTIS_DEBUG, 0, "<Unknown> Stat=<%02x> Mask=<%02x>", stat, mask);
148
149 dprintk(MANTIS_DEBUG, 0, "\n");
150 return IRQ_HANDLED;
151 }
152
mantis_pci_probe(struct pci_dev * pdev,const struct pci_device_id * pci_id)153 static int mantis_pci_probe(struct pci_dev *pdev,
154 const struct pci_device_id *pci_id)
155 {
156 struct mantis_pci_drvdata *drvdata;
157 struct mantis_pci *mantis;
158 struct mantis_hwconfig *config;
159 int err;
160
161 mantis = kzalloc(sizeof(*mantis), GFP_KERNEL);
162 if (!mantis)
163 return -ENOMEM;
164
165 drvdata = (void *)pci_id->driver_data;
166 mantis->num = devs;
167 mantis->verbose = verbose;
168 mantis->pdev = pdev;
169 config = drvdata->hwconfig;
170 config->irq_handler = &mantis_irq_handler;
171 mantis->hwconfig = config;
172 mantis->rc_map_name = drvdata->rc_map_name;
173
174 spin_lock_init(&mantis->intmask_lock);
175
176 err = mantis_pci_init(mantis);
177 if (err) {
178 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI initialization failed <%d>", err);
179 goto err_free_mantis;
180 }
181
182 err = mantis_stream_control(mantis, STREAM_TO_HIF);
183 if (err < 0) {
184 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis stream control failed <%d>", err);
185 goto err_pci_exit;
186 }
187
188 err = mantis_i2c_init(mantis);
189 if (err < 0) {
190 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C initialization failed <%d>", err);
191 goto err_pci_exit;
192 }
193
194 err = mantis_get_mac(mantis);
195 if (err < 0) {
196 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis MAC address read failed <%d>", err);
197 goto err_i2c_exit;
198 }
199
200 err = mantis_dma_init(mantis);
201 if (err < 0) {
202 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA initialization failed <%d>", err);
203 goto err_i2c_exit;
204 }
205
206 err = mantis_dvb_init(mantis);
207 if (err < 0) {
208 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err);
209 goto err_dma_exit;
210 }
211
212 err = mantis_input_init(mantis);
213 if (err < 0) {
214 dprintk(MANTIS_ERROR, 1,
215 "ERROR: Mantis DVB initialization failed <%d>", err);
216 goto err_dvb_exit;
217 }
218
219 err = mantis_uart_init(mantis);
220 if (err < 0) {
221 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART initialization failed <%d>", err);
222 goto err_input_exit;
223 }
224
225 devs++;
226
227 return 0;
228
229 err_input_exit:
230 mantis_input_exit(mantis);
231
232 err_dvb_exit:
233 mantis_dvb_exit(mantis);
234
235 err_dma_exit:
236 mantis_dma_exit(mantis);
237
238 err_i2c_exit:
239 mantis_i2c_exit(mantis);
240
241 err_pci_exit:
242 mantis_pci_exit(mantis);
243
244 err_free_mantis:
245 kfree(mantis);
246
247 return err;
248 }
249
mantis_pci_remove(struct pci_dev * pdev)250 static void mantis_pci_remove(struct pci_dev *pdev)
251 {
252 struct mantis_pci *mantis = pci_get_drvdata(pdev);
253
254 if (mantis) {
255
256 mantis_uart_exit(mantis);
257 mantis_input_exit(mantis);
258 mantis_dvb_exit(mantis);
259 mantis_dma_exit(mantis);
260 mantis_i2c_exit(mantis);
261 mantis_pci_exit(mantis);
262 kfree(mantis);
263 }
264 return;
265 }
266
267 static const struct pci_device_id mantis_pci_table[] = {
268 MAKE_ENTRY(TECHNISAT, CABLESTAR_HD2, &vp2040_config,
269 RC_MAP_TECHNISAT_TS35),
270 MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_10, &vp1041_config,
271 NULL),
272 MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_20, &vp1041_config,
273 NULL),
274 MAKE_ENTRY(TERRATEC, CINERGY_C, &vp2040_config,
275 RC_MAP_TERRATEC_CINERGY_C_PCI),
276 MAKE_ENTRY(TERRATEC, CINERGY_S2_PCI_HD, &vp1041_config,
277 RC_MAP_TERRATEC_CINERGY_S2_HD),
278 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1033_DVB_S, &vp1033_config,
279 NULL),
280 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1034_DVB_S, &vp1034_config,
281 NULL),
282 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1041_DVB_S2, &vp1041_config,
283 RC_MAP_TWINHAN_DTV_CAB_CI),
284 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2033_DVB_C, &vp2033_config,
285 RC_MAP_TWINHAN_DTV_CAB_CI),
286 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2040_DVB_C, &vp2040_config,
287 NULL),
288 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_3030_DVB_T, &vp3030_config,
289 NULL),
290 { }
291 };
292
293 MODULE_DEVICE_TABLE(pci, mantis_pci_table);
294
295 static struct pci_driver mantis_pci_driver = {
296 .name = DRIVER_NAME,
297 .id_table = mantis_pci_table,
298 .probe = mantis_pci_probe,
299 .remove = mantis_pci_remove,
300 };
301
302 module_pci_driver(mantis_pci_driver);
303
304 MODULE_DESCRIPTION("MANTIS driver");
305 MODULE_AUTHOR("Manu Abraham");
306 MODULE_LICENSE("GPL");
307