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 == NULL)) {
73 dprintk(MANTIS_ERROR, 1, "Mantis == NULL");
74 return IRQ_NONE;
75 }
76 ca = mantis->mantis_ca;
77
78 stat = mmread(MANTIS_INT_STAT);
79 mask = mmread(MANTIS_INT_MASK);
80 if (!(stat & mask))
81 return IRQ_NONE;
82
83 rst_mask = MANTIS_GPIF_WRACK |
84 MANTIS_GPIF_OTHERR |
85 MANTIS_SBUF_WSTO |
86 MANTIS_GPIF_EXTIRQ;
87
88 rst_stat = mmread(MANTIS_GPIF_STATUS);
89 rst_stat &= rst_mask;
90 mmwrite(rst_stat, MANTIS_GPIF_STATUS);
91
92 mantis->mantis_int_stat = stat;
93 mantis->mantis_int_mask = mask;
94 dprintk(MANTIS_DEBUG, 0, "\n-- Stat=<%02x> Mask=<%02x> --", stat, mask);
95 if (stat & MANTIS_INT_RISCEN) {
96 dprintk(MANTIS_DEBUG, 0, "<%s>", label[0]);
97 }
98 if (stat & MANTIS_INT_IRQ0) {
99 dprintk(MANTIS_DEBUG, 0, "<%s>", label[1]);
100 mantis->gpif_status = rst_stat;
101 wake_up(&ca->hif_write_wq);
102 schedule_work(&ca->hif_evm_work);
103 }
104 if (stat & MANTIS_INT_IRQ1) {
105 dprintk(MANTIS_DEBUG, 0, "<%s>", label[2]);
106 spin_lock(&mantis->intmask_lock);
107 mmwrite(mmread(MANTIS_INT_MASK) & ~MANTIS_INT_IRQ1,
108 MANTIS_INT_MASK);
109 spin_unlock(&mantis->intmask_lock);
110 schedule_work(&mantis->uart_work);
111 }
112 if (stat & MANTIS_INT_OCERR) {
113 dprintk(MANTIS_DEBUG, 0, "<%s>", label[3]);
114 }
115 if (stat & MANTIS_INT_PABORT) {
116 dprintk(MANTIS_DEBUG, 0, "<%s>", label[4]);
117 }
118 if (stat & MANTIS_INT_RIPERR) {
119 dprintk(MANTIS_DEBUG, 0, "<%s>", label[5]);
120 }
121 if (stat & MANTIS_INT_PPERR) {
122 dprintk(MANTIS_DEBUG, 0, "<%s>", label[6]);
123 }
124 if (stat & MANTIS_INT_FTRGT) {
125 dprintk(MANTIS_DEBUG, 0, "<%s>", label[7]);
126 }
127 if (stat & MANTIS_INT_RISCI) {
128 dprintk(MANTIS_DEBUG, 0, "<%s>", label[8]);
129 mantis->busy_block = (stat & MANTIS_INT_RISCSTAT) >> 28;
130 tasklet_schedule(&mantis->tasklet);
131 }
132 if (stat & MANTIS_INT_I2CDONE) {
133 dprintk(MANTIS_DEBUG, 0, "<%s>", label[9]);
134 wake_up(&mantis->i2c_wq);
135 }
136 mmwrite(stat, MANTIS_INT_STAT);
137 stat &= ~(MANTIS_INT_RISCEN | MANTIS_INT_I2CDONE |
138 MANTIS_INT_I2CRACK | MANTIS_INT_PCMCIA7 |
139 MANTIS_INT_PCMCIA6 | MANTIS_INT_PCMCIA5 |
140 MANTIS_INT_PCMCIA4 | MANTIS_INT_PCMCIA3 |
141 MANTIS_INT_PCMCIA2 | MANTIS_INT_PCMCIA1 |
142 MANTIS_INT_PCMCIA0 | MANTIS_INT_IRQ1 |
143 MANTIS_INT_IRQ0 | MANTIS_INT_OCERR |
144 MANTIS_INT_PABORT | MANTIS_INT_RIPERR |
145 MANTIS_INT_PPERR | MANTIS_INT_FTRGT |
146 MANTIS_INT_RISCI);
147
148 if (stat)
149 dprintk(MANTIS_DEBUG, 0, "<Unknown> Stat=<%02x> Mask=<%02x>", stat, mask);
150
151 dprintk(MANTIS_DEBUG, 0, "\n");
152 return IRQ_HANDLED;
153 }
154
mantis_pci_probe(struct pci_dev * pdev,const struct pci_device_id * pci_id)155 static int mantis_pci_probe(struct pci_dev *pdev,
156 const struct pci_device_id *pci_id)
157 {
158 struct mantis_pci_drvdata *drvdata;
159 struct mantis_pci *mantis;
160 struct mantis_hwconfig *config;
161 int err;
162
163 mantis = kzalloc(sizeof(*mantis), GFP_KERNEL);
164 if (!mantis)
165 return -ENOMEM;
166
167 drvdata = (void *)pci_id->driver_data;
168 mantis->num = devs;
169 mantis->verbose = verbose;
170 mantis->pdev = pdev;
171 config = drvdata->hwconfig;
172 config->irq_handler = &mantis_irq_handler;
173 mantis->hwconfig = config;
174 mantis->rc_map_name = drvdata->rc_map_name;
175
176 spin_lock_init(&mantis->intmask_lock);
177
178 err = mantis_pci_init(mantis);
179 if (err) {
180 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI initialization failed <%d>", err);
181 goto err_free_mantis;
182 }
183
184 err = mantis_stream_control(mantis, STREAM_TO_HIF);
185 if (err < 0) {
186 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis stream control failed <%d>", err);
187 goto err_pci_exit;
188 }
189
190 err = mantis_i2c_init(mantis);
191 if (err < 0) {
192 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C initialization failed <%d>", err);
193 goto err_pci_exit;
194 }
195
196 err = mantis_get_mac(mantis);
197 if (err < 0) {
198 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis MAC address read failed <%d>", err);
199 goto err_i2c_exit;
200 }
201
202 err = mantis_dma_init(mantis);
203 if (err < 0) {
204 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA initialization failed <%d>", err);
205 goto err_i2c_exit;
206 }
207
208 err = mantis_dvb_init(mantis);
209 if (err < 0) {
210 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err);
211 goto err_dma_exit;
212 }
213
214 err = mantis_input_init(mantis);
215 if (err < 0) {
216 dprintk(MANTIS_ERROR, 1,
217 "ERROR: Mantis DVB initialization failed <%d>", err);
218 goto err_dvb_exit;
219 }
220
221 err = mantis_uart_init(mantis);
222 if (err < 0) {
223 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART initialization failed <%d>", err);
224 goto err_input_exit;
225 }
226
227 devs++;
228
229 return 0;
230
231 err_input_exit:
232 mantis_input_exit(mantis);
233
234 err_dvb_exit:
235 mantis_dvb_exit(mantis);
236
237 err_dma_exit:
238 mantis_dma_exit(mantis);
239
240 err_i2c_exit:
241 mantis_i2c_exit(mantis);
242
243 err_pci_exit:
244 mantis_pci_exit(mantis);
245
246 err_free_mantis:
247 kfree(mantis);
248
249 return err;
250 }
251
mantis_pci_remove(struct pci_dev * pdev)252 static void mantis_pci_remove(struct pci_dev *pdev)
253 {
254 struct mantis_pci *mantis = pci_get_drvdata(pdev);
255
256 if (mantis) {
257
258 mantis_uart_exit(mantis);
259 mantis_input_exit(mantis);
260 mantis_dvb_exit(mantis);
261 mantis_dma_exit(mantis);
262 mantis_i2c_exit(mantis);
263 mantis_pci_exit(mantis);
264 kfree(mantis);
265 }
266 return;
267 }
268
269 static const struct pci_device_id mantis_pci_table[] = {
270 MAKE_ENTRY(TECHNISAT, CABLESTAR_HD2, &vp2040_config,
271 RC_MAP_TECHNISAT_TS35),
272 MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_10, &vp1041_config,
273 NULL),
274 MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_20, &vp1041_config,
275 NULL),
276 MAKE_ENTRY(TERRATEC, CINERGY_C, &vp2040_config,
277 RC_MAP_TERRATEC_CINERGY_C_PCI),
278 MAKE_ENTRY(TERRATEC, CINERGY_S2_PCI_HD, &vp1041_config,
279 RC_MAP_TERRATEC_CINERGY_S2_HD),
280 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1033_DVB_S, &vp1033_config,
281 NULL),
282 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1034_DVB_S, &vp1034_config,
283 NULL),
284 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1041_DVB_S2, &vp1041_config,
285 RC_MAP_TWINHAN_DTV_CAB_CI),
286 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2033_DVB_C, &vp2033_config,
287 RC_MAP_TWINHAN_DTV_CAB_CI),
288 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2040_DVB_C, &vp2040_config,
289 NULL),
290 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_3030_DVB_T, &vp3030_config,
291 NULL),
292 { }
293 };
294
295 MODULE_DEVICE_TABLE(pci, mantis_pci_table);
296
297 static struct pci_driver mantis_pci_driver = {
298 .name = DRIVER_NAME,
299 .id_table = mantis_pci_table,
300 .probe = mantis_pci_probe,
301 .remove = mantis_pci_remove,
302 };
303
304 module_pci_driver(mantis_pci_driver);
305
306 MODULE_DESCRIPTION("MANTIS driver");
307 MODULE_AUTHOR("Manu Abraham");
308 MODULE_LICENSE("GPL");
309