1/*
2	Mantis PCI bridge driver
3
4	Copyright (C) Manu Abraham (abraham.manu@gmail.com)
5
6	This program is free software; you can redistribute it and/or modify
7	it under the terms of the GNU General Public License as published by
8	the Free Software Foundation; either version 2 of the License, or
9	(at your option) any later version.
10
11	This program is distributed in the hope that it will be useful,
12	but WITHOUT ANY WARRANTY; without even the implied warranty of
13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14	GNU General Public License for more details.
15
16	You should have received a copy of the GNU General Public License
17	along with this program; if not, write to the Free Software
18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19*/
20
21#include <linux/module.h>
22#include <linux/moduleparam.h>
23#include <linux/kernel.h>
24#include <linux/pci.h>
25#include <linux/slab.h>
26#include <asm/irq.h>
27#include <linux/interrupt.h>
28
29#include "dmxdev.h"
30#include "dvbdev.h"
31#include "dvb_demux.h"
32#include "dvb_frontend.h"
33#include "dvb_net.h"
34
35#include "mantis_common.h"
36
37#include "mantis_vp1033.h"
38#include "mantis_vp1034.h"
39#include "mantis_vp1041.h"
40#include "mantis_vp2033.h"
41#include "mantis_vp2040.h"
42#include "mantis_vp3030.h"
43
44#include "mantis_dma.h"
45#include "mantis_ca.h"
46#include "mantis_dvb.h"
47#include "mantis_uart.h"
48#include "mantis_ioc.h"
49#include "mantis_pci.h"
50#include "mantis_i2c.h"
51#include "mantis_reg.h"
52
53static unsigned int verbose;
54module_param(verbose, int, 0644);
55MODULE_PARM_DESC(verbose, "verbose startup messages, default is 0 (no)");
56
57static int devs;
58
59#define DRIVER_NAME	"Mantis"
60
61static char *label[10] = {
62	"DMA",
63	"IRQ-0",
64	"IRQ-1",
65	"OCERR",
66	"PABRT",
67	"RIPRR",
68	"PPERR",
69	"FTRGT",
70	"RISCI",
71	"RACK"
72};
73
74static irqreturn_t mantis_irq_handler(int irq, void *dev_id)
75{
76	u32 stat = 0, mask = 0;
77	u32 rst_stat = 0, rst_mask = 0;
78
79	struct mantis_pci *mantis;
80	struct mantis_ca *ca;
81
82	mantis = (struct mantis_pci *) dev_id;
83	if (unlikely(mantis == NULL)) {
84		dprintk(MANTIS_ERROR, 1, "Mantis == NULL");
85		return IRQ_NONE;
86	}
87	ca = mantis->mantis_ca;
88
89	stat = mmread(MANTIS_INT_STAT);
90	mask = mmread(MANTIS_INT_MASK);
91	if (!(stat & mask))
92		return IRQ_NONE;
93
94	rst_mask  = MANTIS_GPIF_WRACK  |
95		    MANTIS_GPIF_OTHERR |
96		    MANTIS_SBUF_WSTO   |
97		    MANTIS_GPIF_EXTIRQ;
98
99	rst_stat  = mmread(MANTIS_GPIF_STATUS);
100	rst_stat &= rst_mask;
101	mmwrite(rst_stat, MANTIS_GPIF_STATUS);
102
103	mantis->mantis_int_stat = stat;
104	mantis->mantis_int_mask = mask;
105	dprintk(MANTIS_DEBUG, 0, "\n-- Stat=<%02x> Mask=<%02x> --", stat, mask);
106	if (stat & MANTIS_INT_RISCEN) {
107		dprintk(MANTIS_DEBUG, 0, "<%s>", label[0]);
108	}
109	if (stat & MANTIS_INT_IRQ0) {
110		dprintk(MANTIS_DEBUG, 0, "<%s>", label[1]);
111		mantis->gpif_status = rst_stat;
112		wake_up(&ca->hif_write_wq);
113		schedule_work(&ca->hif_evm_work);
114	}
115	if (stat & MANTIS_INT_IRQ1) {
116		dprintk(MANTIS_DEBUG, 0, "<%s>", label[2]);
117		schedule_work(&mantis->uart_work);
118	}
119	if (stat & MANTIS_INT_OCERR) {
120		dprintk(MANTIS_DEBUG, 0, "<%s>", label[3]);
121	}
122	if (stat & MANTIS_INT_PABORT) {
123		dprintk(MANTIS_DEBUG, 0, "<%s>", label[4]);
124	}
125	if (stat & MANTIS_INT_RIPERR) {
126		dprintk(MANTIS_DEBUG, 0, "<%s>", label[5]);
127	}
128	if (stat & MANTIS_INT_PPERR) {
129		dprintk(MANTIS_DEBUG, 0, "<%s>", label[6]);
130	}
131	if (stat & MANTIS_INT_FTRGT) {
132		dprintk(MANTIS_DEBUG, 0, "<%s>", label[7]);
133	}
134	if (stat & MANTIS_INT_RISCI) {
135		dprintk(MANTIS_DEBUG, 0, "<%s>", label[8]);
136		mantis->busy_block = (stat & MANTIS_INT_RISCSTAT) >> 28;
137		tasklet_schedule(&mantis->tasklet);
138	}
139	if (stat & MANTIS_INT_I2CDONE) {
140		dprintk(MANTIS_DEBUG, 0, "<%s>", label[9]);
141		wake_up(&mantis->i2c_wq);
142	}
143	mmwrite(stat, MANTIS_INT_STAT);
144	stat &= ~(MANTIS_INT_RISCEN   | MANTIS_INT_I2CDONE |
145		  MANTIS_INT_I2CRACK  | MANTIS_INT_PCMCIA7 |
146		  MANTIS_INT_PCMCIA6  | MANTIS_INT_PCMCIA5 |
147		  MANTIS_INT_PCMCIA4  | MANTIS_INT_PCMCIA3 |
148		  MANTIS_INT_PCMCIA2  | MANTIS_INT_PCMCIA1 |
149		  MANTIS_INT_PCMCIA0  | MANTIS_INT_IRQ1	   |
150		  MANTIS_INT_IRQ0     | MANTIS_INT_OCERR   |
151		  MANTIS_INT_PABORT   | MANTIS_INT_RIPERR  |
152		  MANTIS_INT_PPERR    | MANTIS_INT_FTRGT   |
153		  MANTIS_INT_RISCI);
154
155	if (stat)
156		dprintk(MANTIS_DEBUG, 0, "<Unknown> Stat=<%02x> Mask=<%02x>", stat, mask);
157
158	dprintk(MANTIS_DEBUG, 0, "\n");
159	return IRQ_HANDLED;
160}
161
162static int mantis_pci_probe(struct pci_dev *pdev,
163			    const struct pci_device_id *pci_id)
164{
165	struct mantis_pci *mantis;
166	struct mantis_hwconfig *config;
167	int err = 0;
168
169	mantis = kzalloc(sizeof(struct mantis_pci), GFP_KERNEL);
170	if (mantis == NULL) {
171		printk(KERN_ERR "%s ERROR: Out of memory\n", __func__);
172		err = -ENOMEM;
173		goto fail0;
174	}
175
176	mantis->num		= devs;
177	mantis->verbose		= verbose;
178	mantis->pdev		= pdev;
179	config			= (struct mantis_hwconfig *) pci_id->driver_data;
180	config->irq_handler	= &mantis_irq_handler;
181	mantis->hwconfig	= config;
182
183	err = mantis_pci_init(mantis);
184	if (err) {
185		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI initialization failed <%d>", err);
186		goto fail1;
187	}
188
189	err = mantis_stream_control(mantis, STREAM_TO_HIF);
190	if (err < 0) {
191		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis stream control failed <%d>", err);
192		goto fail1;
193	}
194
195	err = mantis_i2c_init(mantis);
196	if (err < 0) {
197		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C initialization failed <%d>", err);
198		goto fail2;
199	}
200
201	err = mantis_get_mac(mantis);
202	if (err < 0) {
203		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis MAC address read failed <%d>", err);
204		goto fail2;
205	}
206
207	err = mantis_dma_init(mantis);
208	if (err < 0) {
209		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA initialization failed <%d>", err);
210		goto fail3;
211	}
212
213	err = mantis_dvb_init(mantis);
214	if (err < 0) {
215		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err);
216		goto fail4;
217	}
218	err = mantis_uart_init(mantis);
219	if (err < 0) {
220		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART initialization failed <%d>", err);
221		goto fail6;
222	}
223
224	devs++;
225
226	return err;
227
228
229	dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART exit! <%d>", err);
230	mantis_uart_exit(mantis);
231
232fail6:
233fail4:
234	dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA exit! <%d>", err);
235	mantis_dma_exit(mantis);
236
237fail3:
238	dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C exit! <%d>", err);
239	mantis_i2c_exit(mantis);
240
241fail2:
242	dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI exit! <%d>", err);
243	mantis_pci_exit(mantis);
244
245fail1:
246	dprintk(MANTIS_ERROR, 1, "ERROR: Mantis free! <%d>", err);
247	kfree(mantis);
248
249fail0:
250	return err;
251}
252
253static void mantis_pci_remove(struct pci_dev *pdev)
254{
255	struct mantis_pci *mantis = pci_get_drvdata(pdev);
256
257	if (mantis) {
258
259		mantis_uart_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
269static struct pci_device_id mantis_pci_table[] = {
270	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1033_DVB_S, &vp1033_config),
271	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1034_DVB_S, &vp1034_config),
272	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1041_DVB_S2, &vp1041_config),
273	MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_10, &vp1041_config),
274	MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_20, &vp1041_config),
275	MAKE_ENTRY(TERRATEC, CINERGY_S2_PCI_HD, &vp1041_config),
276	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2033_DVB_C, &vp2033_config),
277	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2040_DVB_C, &vp2040_config),
278	MAKE_ENTRY(TECHNISAT, CABLESTAR_HD2, &vp2040_config),
279	MAKE_ENTRY(TERRATEC, CINERGY_C, &vp2040_config),
280	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_3030_DVB_T, &vp3030_config),
281	{ }
282};
283
284MODULE_DEVICE_TABLE(pci, mantis_pci_table);
285
286static struct pci_driver mantis_pci_driver = {
287	.name		= DRIVER_NAME,
288	.id_table	= mantis_pci_table,
289	.probe		= mantis_pci_probe,
290	.remove		= mantis_pci_remove,
291};
292
293module_pci_driver(mantis_pci_driver);
294
295MODULE_DESCRIPTION("MANTIS driver");
296MODULE_AUTHOR("Manu Abraham");
297MODULE_LICENSE("GPL");
298