4 * Main module for NetUP Universal Dual DVB-CI
6 * Copyright (C) 2014 NetUP Inc.
7 * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
8 * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
21 #include <linux/init.h>
22 #include <linux/module.h>
23 #include <linux/moduleparam.h>
24 #include <linux/kmod.h>
25 #include <linux/kernel.h>
26 #include <linux/slab.h>
27 #include <linux/interrupt.h>
28 #include <linux/delay.h>
29 #include <linux/list.h>
30 #include <media/videobuf2-vmalloc.h>
32 #include "netup_unidvb.h"
33 #include "cxd2841er.h"
38 static int spi_enable;
39 module_param(spi_enable, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
41 MODULE_DESCRIPTION("Driver for NetUP Dual Universal DVB CI PCIe card");
42 MODULE_AUTHOR("info@netup.ru");
43 MODULE_VERSION(NETUP_UNIDVB_VERSION);
44 MODULE_LICENSE("GPL");
46 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
48 /* Avalon-MM PCI-E registers */
49 #define AVL_PCIE_IENR 0x50
50 #define AVL_PCIE_ISR 0x40
51 #define AVL_IRQ_ENABLE 0x80
52 #define AVL_IRQ_ASSERTED 0x80
54 #define GPIO_REG_IO 0x4880
55 #define GPIO_REG_IO_TOGGLE 0x4882
56 #define GPIO_REG_IO_SET 0x4884
57 #define GPIO_REG_IO_CLEAR 0x4886
59 #define GPIO_FEA_RESET (1 << 0)
60 #define GPIO_FEB_RESET (1 << 1)
61 #define GPIO_RFA_CTL (1 << 2)
62 #define GPIO_RFB_CTL (1 << 3)
63 #define GPIO_FEA_TU_RESET (1 << 4)
64 #define GPIO_FEB_TU_RESET (1 << 5)
65 /* DMA base address */
66 #define NETUP_DMA0_ADDR 0x4900
67 #define NETUP_DMA1_ADDR 0x4940
68 /* 8 DMA blocks * 128 packets * 188 bytes*/
69 #define NETUP_DMA_BLOCKS_COUNT 8
70 #define NETUP_DMA_PACKETS_COUNT 128
73 #define BIT_DMA_ERROR 2
74 #define BIT_DMA_IRQ 0x200
77 * struct netup_dma_regs - the map of DMA module registers
78 * @ctrlstat_set: Control register, write to set control bits
79 * @ctrlstat_clear: Control register, write to clear control bits
80 * @start_addr_lo: DMA ring buffer start address, lower part
81 * @start_addr_hi: DMA ring buffer start address, higher part
82 * @size: DMA ring buffer size register
83 Bits [0-7]: DMA packet size, 188 bytes
84 Bits [16-23]: packets count in block, 128 packets
85 Bits [24-31]: blocks count, 8 blocks
86 * @timeout: DMA timeout in units of 8ns
87 For example, value of 375000000 equals to 3 sec
88 * @curr_addr_lo: Current ring buffer head address, lower part
89 * @curr_addr_hi: Current ring buffer head address, higher part
90 * @stat_pkt_received: Statistic register, not tested
91 * @stat_pkt_accepted: Statistic register, not tested
92 * @stat_pkt_overruns: Statistic register, not tested
93 * @stat_pkt_underruns: Statistic register, not tested
94 * @stat_fifo_overruns: Statistic register, not tested
96 struct netup_dma_regs {
98 __le32 ctrlstat_clear;
100 __le32 start_addr_hi;
105 __le32 stat_pkt_received;
106 __le32 stat_pkt_accepted;
107 __le32 stat_pkt_overruns;
108 __le32 stat_pkt_underruns;
109 __le32 stat_fifo_overruns;
110 } __packed __aligned(1);
112 struct netup_unidvb_buffer {
113 struct vb2_buffer vb;
114 struct list_head list;
118 static int netup_unidvb_tuner_ctrl(void *priv, int is_dvb_tc);
119 static void netup_unidvb_queue_cleanup(struct netup_dma *dma);
121 static struct cxd2841er_config demod_config = {
125 static struct horus3a_config horus3a_conf = {
128 .set_tuner_callback = netup_unidvb_tuner_ctrl
131 static struct ascot2e_config ascot2e_conf = {
133 .set_tuner_callback = netup_unidvb_tuner_ctrl
136 static struct lnbh25_config lnbh25_conf = {
138 .data2_config = LNBH25_TEN | LNBH25_EXTM
141 static int netup_unidvb_tuner_ctrl(void *priv, int is_dvb_tc)
144 struct netup_dma *dma = priv;
145 struct netup_unidvb_dev *ndev;
150 dev_dbg(&ndev->pci_dev->dev, "%s(): num %d is_dvb_tc %d\n",
151 __func__, dma->num, is_dvb_tc);
152 reg = readb(ndev->bmmio0 + GPIO_REG_IO);
153 mask = (dma->num == 0) ? GPIO_RFA_CTL : GPIO_RFB_CTL;
158 writeb(reg, ndev->bmmio0 + GPIO_REG_IO);
162 static void netup_unidvb_dev_enable(struct netup_unidvb_dev *ndev)
166 /* enable PCI-E interrupts */
167 writel(AVL_IRQ_ENABLE, ndev->bmmio0 + AVL_PCIE_IENR);
168 /* unreset frontends bits[0:1] */
169 writeb(0x00, ndev->bmmio0 + GPIO_REG_IO);
172 GPIO_FEA_RESET | GPIO_FEB_RESET |
173 GPIO_FEA_TU_RESET | GPIO_FEB_TU_RESET |
174 GPIO_RFA_CTL | GPIO_RFB_CTL;
175 writeb(gpio_reg, ndev->bmmio0 + GPIO_REG_IO);
176 dev_dbg(&ndev->pci_dev->dev,
177 "%s(): AVL_PCIE_IENR 0x%x GPIO_REG_IO 0x%x\n",
178 __func__, readl(ndev->bmmio0 + AVL_PCIE_IENR),
179 (int)readb(ndev->bmmio0 + GPIO_REG_IO));
183 static void netup_unidvb_dma_enable(struct netup_dma *dma, int enable)
185 u32 irq_mask = (dma->num == 0 ?
186 NETUP_UNIDVB_IRQ_DMA1 : NETUP_UNIDVB_IRQ_DMA2);
188 dev_dbg(&dma->ndev->pci_dev->dev,
189 "%s(): DMA%d enable %d\n", __func__, dma->num, enable);
191 writel(BIT_DMA_RUN, &dma->regs->ctrlstat_set);
193 (u16 *)(dma->ndev->bmmio0 + REG_IMASK_SET));
195 writel(BIT_DMA_RUN, &dma->regs->ctrlstat_clear);
197 (u16 *)(dma->ndev->bmmio0 + REG_IMASK_CLEAR));
201 static irqreturn_t netup_dma_interrupt(struct netup_dma *dma)
206 struct device *dev = &dma->ndev->pci_dev->dev;
208 spin_lock_irqsave(&dma->lock, flags);
209 addr_curr = ((u64)readl(&dma->regs->curr_addr_hi) << 32) |
210 (u64)readl(&dma->regs->curr_addr_lo) | dma->high_addr;
212 writel(BIT_DMA_IRQ, &dma->regs->ctrlstat_clear);
214 if (addr_curr < dma->addr_phys ||
215 addr_curr > dma->addr_phys + dma->ring_buffer_size) {
216 if (addr_curr != 0) {
218 "%s(): addr 0x%llx not from 0x%llx:0x%llx\n",
219 __func__, addr_curr, (u64)dma->addr_phys,
220 (u64)(dma->addr_phys + dma->ring_buffer_size));
224 size = (addr_curr >= dma->addr_last) ?
225 (u32)(addr_curr - dma->addr_last) :
226 (u32)(dma->ring_buffer_size - (dma->addr_last - addr_curr));
227 if (dma->data_size != 0) {
228 printk_ratelimited("%s(): lost interrupt, data size %d\n",
229 __func__, dma->data_size);
230 dma->data_size += size;
232 if (dma->data_size == 0 || dma->data_size > dma->ring_buffer_size) {
233 dma->data_size = size;
234 dma->data_offset = (u32)(dma->addr_last - dma->addr_phys);
236 dma->addr_last = addr_curr;
237 queue_work(dma->ndev->wq, &dma->work);
239 spin_unlock_irqrestore(&dma->lock, flags);
243 static irqreturn_t netup_unidvb_isr(int irq, void *dev_id)
245 struct pci_dev *pci_dev = (struct pci_dev *)dev_id;
246 struct netup_unidvb_dev *ndev = pci_get_drvdata(pci_dev);
248 irqreturn_t iret = IRQ_NONE;
250 /* disable interrupts */
251 writel(0, ndev->bmmio0 + AVL_PCIE_IENR);
252 /* check IRQ source */
253 reg40 = readl(ndev->bmmio0 + AVL_PCIE_ISR);
254 if ((reg40 & AVL_IRQ_ASSERTED) != 0) {
255 /* IRQ is being signaled */
256 reg_isr = readw(ndev->bmmio0 + REG_ISR);
257 if (reg_isr & NETUP_UNIDVB_IRQ_I2C0) {
258 iret = netup_i2c_interrupt(&ndev->i2c[0]);
259 } else if (reg_isr & NETUP_UNIDVB_IRQ_I2C1) {
260 iret = netup_i2c_interrupt(&ndev->i2c[1]);
261 } else if (reg_isr & NETUP_UNIDVB_IRQ_SPI) {
262 iret = netup_spi_interrupt(ndev->spi);
263 } else if (reg_isr & NETUP_UNIDVB_IRQ_DMA1) {
264 iret = netup_dma_interrupt(&ndev->dma[0]);
265 } else if (reg_isr & NETUP_UNIDVB_IRQ_DMA2) {
266 iret = netup_dma_interrupt(&ndev->dma[1]);
267 } else if (reg_isr & NETUP_UNIDVB_IRQ_CI) {
268 iret = netup_ci_interrupt(ndev);
270 dev_err(&pci_dev->dev,
271 "%s(): unknown interrupt 0x%x\n",
275 /* re-enable interrupts */
276 writel(AVL_IRQ_ENABLE, ndev->bmmio0 + AVL_PCIE_IENR);
280 static int netup_unidvb_queue_setup(struct vb2_queue *vq,
281 const struct v4l2_format *fmt,
282 unsigned int *nbuffers,
283 unsigned int *nplanes,
284 unsigned int sizes[],
287 struct netup_dma *dma = vb2_get_drv_priv(vq);
289 dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
292 if (vq->num_buffers + *nbuffers < VIDEO_MAX_FRAME)
293 *nbuffers = VIDEO_MAX_FRAME - vq->num_buffers;
294 sizes[0] = PAGE_ALIGN(NETUP_DMA_PACKETS_COUNT * 188);
295 dev_dbg(&dma->ndev->pci_dev->dev, "%s() nbuffers=%d sizes[0]=%d\n",
296 __func__, *nbuffers, sizes[0]);
300 static int netup_unidvb_buf_prepare(struct vb2_buffer *vb)
302 struct netup_dma *dma = vb2_get_drv_priv(vb->vb2_queue);
303 struct netup_unidvb_buffer *buf = container_of(vb,
304 struct netup_unidvb_buffer, vb);
306 dev_dbg(&dma->ndev->pci_dev->dev, "%s(): buf 0x%p\n", __func__, buf);
311 static void netup_unidvb_buf_queue(struct vb2_buffer *vb)
314 struct netup_dma *dma = vb2_get_drv_priv(vb->vb2_queue);
315 struct netup_unidvb_buffer *buf = container_of(vb,
316 struct netup_unidvb_buffer, vb);
318 dev_dbg(&dma->ndev->pci_dev->dev, "%s(): %p\n", __func__, buf);
319 spin_lock_irqsave(&dma->lock, flags);
320 list_add_tail(&buf->list, &dma->free_buffers);
321 spin_unlock_irqrestore(&dma->lock, flags);
322 mod_timer(&dma->timeout, jiffies + msecs_to_jiffies(1000));
325 static int netup_unidvb_start_streaming(struct vb2_queue *q, unsigned int count)
327 struct netup_dma *dma = vb2_get_drv_priv(q);
329 dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
330 netup_unidvb_dma_enable(dma, 1);
334 static void netup_unidvb_stop_streaming(struct vb2_queue *q)
336 struct netup_dma *dma = vb2_get_drv_priv(q);
338 dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
339 netup_unidvb_dma_enable(dma, 0);
340 netup_unidvb_queue_cleanup(dma);
343 static struct vb2_ops dvb_qops = {
344 .queue_setup = netup_unidvb_queue_setup,
345 .buf_prepare = netup_unidvb_buf_prepare,
346 .buf_queue = netup_unidvb_buf_queue,
347 .start_streaming = netup_unidvb_start_streaming,
348 .stop_streaming = netup_unidvb_stop_streaming,
351 static int netup_unidvb_queue_init(struct netup_dma *dma,
352 struct vb2_queue *vb_queue)
356 /* Init videobuf2 queue structure */
357 vb_queue->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
358 vb_queue->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
359 vb_queue->drv_priv = dma;
360 vb_queue->buf_struct_size = sizeof(struct netup_unidvb_buffer);
361 vb_queue->ops = &dvb_qops;
362 vb_queue->mem_ops = &vb2_vmalloc_memops;
363 vb_queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
364 res = vb2_queue_init(vb_queue);
366 dev_err(&dma->ndev->pci_dev->dev,
367 "%s(): vb2_queue_init failed (%d)\n", __func__, res);
372 static int netup_unidvb_dvb_init(struct netup_unidvb_dev *ndev,
375 struct vb2_dvb_frontend *fe0, *fe1, *fe2;
377 if (num < 0 || num > 1) {
378 dev_dbg(&ndev->pci_dev->dev,
379 "%s(): unable to init DVB bus %d\n", __func__, num);
382 mutex_init(&ndev->frontends[num].lock);
383 INIT_LIST_HEAD(&ndev->frontends[num].felist);
384 if (vb2_dvb_alloc_frontend(&ndev->frontends[num], 1) == NULL ||
385 vb2_dvb_alloc_frontend(
386 &ndev->frontends[num], 2) == NULL ||
387 vb2_dvb_alloc_frontend(
388 &ndev->frontends[num], 3) == NULL) {
389 dev_dbg(&ndev->pci_dev->dev,
390 "%s(): unable to to alllocate vb2_dvb_frontend\n",
394 fe0 = vb2_dvb_get_frontend(&ndev->frontends[num], 1);
395 fe1 = vb2_dvb_get_frontend(&ndev->frontends[num], 2);
396 fe2 = vb2_dvb_get_frontend(&ndev->frontends[num], 3);
397 if (fe0 == NULL || fe1 == NULL || fe2 == NULL) {
398 dev_dbg(&ndev->pci_dev->dev,
399 "%s(): frontends has not been allocated\n", __func__);
402 netup_unidvb_queue_init(&ndev->dma[num], &fe0->dvb.dvbq);
403 netup_unidvb_queue_init(&ndev->dma[num], &fe1->dvb.dvbq);
404 netup_unidvb_queue_init(&ndev->dma[num], &fe2->dvb.dvbq);
405 fe0->dvb.name = "netup_fe0";
406 fe1->dvb.name = "netup_fe1";
407 fe2->dvb.name = "netup_fe2";
408 fe0->dvb.frontend = dvb_attach(cxd2841er_attach_s,
409 &demod_config, &ndev->i2c[num].adap);
410 if (fe0->dvb.frontend == NULL) {
411 dev_dbg(&ndev->pci_dev->dev,
412 "%s(): unable to attach DVB-S/S2 frontend\n",
414 goto frontend_detach;
416 horus3a_conf.set_tuner_priv = &ndev->dma[num];
417 if (!dvb_attach(horus3a_attach, fe0->dvb.frontend,
418 &horus3a_conf, &ndev->i2c[num].adap)) {
419 dev_dbg(&ndev->pci_dev->dev,
420 "%s(): unable to attach DVB-S/S2 tuner frontend\n",
422 goto frontend_detach;
424 if (!dvb_attach(lnbh25_attach, fe0->dvb.frontend,
425 &lnbh25_conf, &ndev->i2c[num].adap)) {
426 dev_dbg(&ndev->pci_dev->dev,
427 "%s(): unable to attach SEC frontend\n", __func__);
428 goto frontend_detach;
430 /* DVB-T/T2 frontend */
431 fe1->dvb.frontend = dvb_attach(cxd2841er_attach_t,
432 &demod_config, &ndev->i2c[num].adap);
433 if (fe1->dvb.frontend == NULL) {
434 dev_dbg(&ndev->pci_dev->dev,
435 "%s(): unable to attach DVB-T frontend\n", __func__);
436 goto frontend_detach;
438 fe1->dvb.frontend->id = 1;
439 ascot2e_conf.set_tuner_priv = &ndev->dma[num];
440 if (!dvb_attach(ascot2e_attach, fe1->dvb.frontend,
441 &ascot2e_conf, &ndev->i2c[num].adap)) {
442 dev_dbg(&ndev->pci_dev->dev,
443 "%s(): unable to attach DVB-T tuner frontend\n",
445 goto frontend_detach;
447 /* DVB-C/C2 frontend */
448 fe2->dvb.frontend = dvb_attach(cxd2841er_attach_c,
449 &demod_config, &ndev->i2c[num].adap);
450 if (fe2->dvb.frontend == NULL) {
451 dev_dbg(&ndev->pci_dev->dev,
452 "%s(): unable to attach DVB-C frontend\n", __func__);
453 goto frontend_detach;
455 fe2->dvb.frontend->id = 2;
456 if (!dvb_attach(ascot2e_attach, fe2->dvb.frontend,
457 &ascot2e_conf, &ndev->i2c[num].adap)) {
458 dev_dbg(&ndev->pci_dev->dev,
459 "%s(): unable to attach DVB-T/C tuner frontend\n",
461 goto frontend_detach;
464 if (vb2_dvb_register_bus(&ndev->frontends[num],
466 &ndev->pci_dev->dev, adapter_nr, 1)) {
467 dev_dbg(&ndev->pci_dev->dev,
468 "%s(): unable to register DVB bus %d\n",
470 goto frontend_detach;
472 dev_info(&ndev->pci_dev->dev, "DVB init done, num=%d\n", num);
475 vb2_dvb_dealloc_frontends(&ndev->frontends[num]);
479 static void netup_unidvb_dvb_fini(struct netup_unidvb_dev *ndev, int num)
481 if (num < 0 || num > 1) {
482 dev_err(&ndev->pci_dev->dev,
483 "%s(): unable to unregister DVB bus %d\n",
487 vb2_dvb_unregister_bus(&ndev->frontends[num]);
488 dev_info(&ndev->pci_dev->dev,
489 "%s(): DVB bus %d unregistered\n", __func__, num);
492 static int netup_unidvb_dvb_setup(struct netup_unidvb_dev *ndev)
496 res = netup_unidvb_dvb_init(ndev, 0);
499 res = netup_unidvb_dvb_init(ndev, 1);
501 netup_unidvb_dvb_fini(ndev, 0);
507 static int netup_unidvb_ring_copy(struct netup_dma *dma,
508 struct netup_unidvb_buffer *buf)
510 u32 copy_bytes, ring_bytes;
511 u32 buff_bytes = NETUP_DMA_PACKETS_COUNT * 188 - buf->size;
512 u8 *p = vb2_plane_vaddr(&buf->vb, 0);
513 struct netup_unidvb_dev *ndev = dma->ndev;
516 dev_err(&ndev->pci_dev->dev,
517 "%s(): buffer is NULL\n", __func__);
521 if (dma->data_offset + dma->data_size > dma->ring_buffer_size) {
522 ring_bytes = dma->ring_buffer_size - dma->data_offset;
523 copy_bytes = (ring_bytes > buff_bytes) ?
524 buff_bytes : ring_bytes;
525 memcpy_fromio(p, dma->addr_virt + dma->data_offset, copy_bytes);
527 buf->size += copy_bytes;
528 buff_bytes -= copy_bytes;
529 dma->data_size -= copy_bytes;
530 dma->data_offset += copy_bytes;
531 if (dma->data_offset == dma->ring_buffer_size)
532 dma->data_offset = 0;
534 if (buff_bytes > 0) {
535 ring_bytes = dma->data_size;
536 copy_bytes = (ring_bytes > buff_bytes) ?
537 buff_bytes : ring_bytes;
538 memcpy_fromio(p, dma->addr_virt + dma->data_offset, copy_bytes);
539 buf->size += copy_bytes;
540 dma->data_size -= copy_bytes;
541 dma->data_offset += copy_bytes;
542 if (dma->data_offset == dma->ring_buffer_size)
543 dma->data_offset = 0;
548 static void netup_unidvb_dma_worker(struct work_struct *work)
550 struct netup_dma *dma = container_of(work, struct netup_dma, work);
551 struct netup_unidvb_dev *ndev = dma->ndev;
552 struct netup_unidvb_buffer *buf;
555 spin_lock_irqsave(&dma->lock, flags);
556 if (dma->data_size == 0) {
557 dev_dbg(&ndev->pci_dev->dev,
558 "%s(): data_size == 0\n", __func__);
561 while (dma->data_size > 0) {
562 if (list_empty(&dma->free_buffers)) {
563 dev_dbg(&ndev->pci_dev->dev,
564 "%s(): no free buffers\n", __func__);
567 buf = list_first_entry(&dma->free_buffers,
568 struct netup_unidvb_buffer, list);
569 if (buf->size >= NETUP_DMA_PACKETS_COUNT * 188) {
570 dev_dbg(&ndev->pci_dev->dev,
571 "%s(): buffer overflow, size %d\n",
572 __func__, buf->size);
575 if (netup_unidvb_ring_copy(dma, buf))
577 if (buf->size == NETUP_DMA_PACKETS_COUNT * 188) {
578 list_del(&buf->list);
579 dev_dbg(&ndev->pci_dev->dev,
580 "%s(): buffer %p done, size %d\n",
581 __func__, buf, buf->size);
582 v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
583 vb2_set_plane_payload(&buf->vb, 0, buf->size);
584 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
589 spin_unlock_irqrestore(&dma->lock, flags);
592 static void netup_unidvb_queue_cleanup(struct netup_dma *dma)
594 struct netup_unidvb_buffer *buf;
597 spin_lock_irqsave(&dma->lock, flags);
598 while (!list_empty(&dma->free_buffers)) {
599 buf = list_first_entry(&dma->free_buffers,
600 struct netup_unidvb_buffer, list);
601 list_del(&buf->list);
602 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
604 spin_unlock_irqrestore(&dma->lock, flags);
607 static void netup_unidvb_dma_timeout(unsigned long data)
609 struct netup_dma *dma = (struct netup_dma *)data;
610 struct netup_unidvb_dev *ndev = dma->ndev;
612 dev_dbg(&ndev->pci_dev->dev, "%s()\n", __func__);
613 netup_unidvb_queue_cleanup(dma);
616 static int netup_unidvb_dma_init(struct netup_unidvb_dev *ndev, int num)
618 struct netup_dma *dma;
619 struct device *dev = &ndev->pci_dev->dev;
621 if (num < 0 || num > 1) {
622 dev_err(dev, "%s(): unable to register DMA%d\n",
626 dma = &ndev->dma[num];
627 dev_info(dev, "%s(): starting DMA%d\n", __func__, num);
630 spin_lock_init(&dma->lock);
631 INIT_WORK(&dma->work, netup_unidvb_dma_worker);
632 INIT_LIST_HEAD(&dma->free_buffers);
633 dma->timeout.function = netup_unidvb_dma_timeout;
634 dma->timeout.data = (unsigned long)dma;
635 init_timer(&dma->timeout);
636 dma->ring_buffer_size = ndev->dma_size / 2;
637 dma->addr_virt = ndev->dma_virt + dma->ring_buffer_size * num;
638 dma->addr_phys = (dma_addr_t)((u64)ndev->dma_phys +
639 dma->ring_buffer_size * num);
640 dev_info(dev, "%s(): DMA%d buffer virt/phys 0x%p/0x%llx size %d\n",
641 __func__, num, dma->addr_virt,
642 (unsigned long long)dma->addr_phys,
643 dma->ring_buffer_size);
644 memset_io(dma->addr_virt, 0, dma->ring_buffer_size);
645 dma->addr_last = dma->addr_phys;
646 dma->high_addr = (u32)(dma->addr_phys & 0xC0000000);
647 dma->regs = (struct netup_dma_regs *)(num == 0 ?
648 ndev->bmmio0 + NETUP_DMA0_ADDR :
649 ndev->bmmio0 + NETUP_DMA1_ADDR);
650 writel((NETUP_DMA_BLOCKS_COUNT << 24) |
651 (NETUP_DMA_PACKETS_COUNT << 8) | 188, &dma->regs->size);
652 writel((u32)(dma->addr_phys & 0x3FFFFFFF), &dma->regs->start_addr_lo);
653 writel(0, &dma->regs->start_addr_hi);
654 writel(dma->high_addr, ndev->bmmio0 + 0x1000);
655 writel(375000000, &dma->regs->timeout);
657 writel(BIT_DMA_IRQ, &dma->regs->ctrlstat_clear);
661 static void netup_unidvb_dma_fini(struct netup_unidvb_dev *ndev, int num)
663 struct netup_dma *dma;
665 if (num < 0 || num > 1)
667 dev_dbg(&ndev->pci_dev->dev, "%s(): num %d\n", __func__, num);
668 dma = &ndev->dma[num];
669 netup_unidvb_dma_enable(dma, 0);
671 cancel_work_sync(&dma->work);
672 del_timer(&dma->timeout);
675 static int netup_unidvb_dma_setup(struct netup_unidvb_dev *ndev)
679 res = netup_unidvb_dma_init(ndev, 0);
682 res = netup_unidvb_dma_init(ndev, 1);
684 netup_unidvb_dma_fini(ndev, 0);
687 netup_unidvb_dma_enable(&ndev->dma[0], 0);
688 netup_unidvb_dma_enable(&ndev->dma[1], 0);
692 static int netup_unidvb_ci_setup(struct netup_unidvb_dev *ndev,
693 struct pci_dev *pci_dev)
697 writew(NETUP_UNIDVB_IRQ_CI, ndev->bmmio0 + REG_IMASK_SET);
698 res = netup_unidvb_ci_register(ndev, 0, pci_dev);
701 res = netup_unidvb_ci_register(ndev, 1, pci_dev);
703 netup_unidvb_ci_unregister(ndev, 0);
707 static int netup_unidvb_request_mmio(struct pci_dev *pci_dev)
709 if (!request_mem_region(pci_resource_start(pci_dev, 0),
710 pci_resource_len(pci_dev, 0), NETUP_UNIDVB_NAME)) {
711 dev_err(&pci_dev->dev,
712 "%s(): unable to request MMIO bar 0 at 0x%llx\n",
714 (unsigned long long)pci_resource_start(pci_dev, 0));
717 if (!request_mem_region(pci_resource_start(pci_dev, 1),
718 pci_resource_len(pci_dev, 1), NETUP_UNIDVB_NAME)) {
719 dev_err(&pci_dev->dev,
720 "%s(): unable to request MMIO bar 1 at 0x%llx\n",
722 (unsigned long long)pci_resource_start(pci_dev, 1));
723 release_mem_region(pci_resource_start(pci_dev, 0),
724 pci_resource_len(pci_dev, 0));
730 static int netup_unidvb_request_modules(struct device *dev)
732 static const char * const modules[] = {
733 "lnbh25", "ascot2e", "horus3a", "cxd2841er", NULL
735 const char * const *curr_mod = modules;
738 while (*curr_mod != NULL) {
739 err = request_module(*curr_mod);
741 dev_warn(dev, "request_module(%s) failed: %d\n",
749 static int netup_unidvb_initdev(struct pci_dev *pci_dev,
750 const struct pci_device_id *pci_id)
754 struct netup_unidvb_dev *ndev;
755 int old_firmware = 0;
757 netup_unidvb_request_modules(&pci_dev->dev);
759 /* Check card revision */
760 if (pci_dev->revision != NETUP_PCI_DEV_REVISION) {
761 dev_err(&pci_dev->dev,
762 "netup_unidvb: expected card revision %d, got %d\n",
763 NETUP_PCI_DEV_REVISION, pci_dev->revision);
764 dev_err(&pci_dev->dev,
765 "Please upgrade firmware!\n");
766 dev_err(&pci_dev->dev,
767 "Instructions on http://www.netup.tv\n");
772 /* allocate device context */
773 ndev = kzalloc(sizeof(*ndev), GFP_KERNEL);
777 memset(ndev, 0, sizeof(*ndev));
778 ndev->old_fw = old_firmware;
779 ndev->wq = create_singlethread_workqueue(NETUP_UNIDVB_NAME);
781 dev_err(&pci_dev->dev,
782 "%s(): unable to create workqueue\n", __func__);
785 ndev->pci_dev = pci_dev;
786 ndev->pci_bus = pci_dev->bus->number;
787 ndev->pci_slot = PCI_SLOT(pci_dev->devfn);
788 ndev->pci_func = PCI_FUNC(pci_dev->devfn);
789 ndev->board_num = ndev->pci_bus*10 + ndev->pci_slot;
790 pci_set_drvdata(pci_dev, ndev);
792 dev_info(&pci_dev->dev, "%s(): PCI device (%d). Bus:0x%x Slot:0x%x\n",
793 __func__, ndev->board_num, ndev->pci_bus, ndev->pci_slot);
795 if (pci_enable_device(pci_dev)) {
796 dev_err(&pci_dev->dev, "%s(): pci_enable_device failed\n",
801 pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &board_revision);
802 pci_read_config_word(pci_dev, PCI_VENDOR_ID, &board_vendor);
803 if (board_vendor != NETUP_VENDOR_ID) {
804 dev_err(&pci_dev->dev, "%s(): unknown board vendor 0x%x",
805 __func__, board_vendor);
808 dev_info(&pci_dev->dev,
809 "%s(): board vendor 0x%x, revision 0x%x\n",
810 __func__, board_vendor, board_revision);
811 pci_set_master(pci_dev);
812 if (!pci_dma_supported(pci_dev, 0xffffffff)) {
813 dev_err(&pci_dev->dev,
814 "%s(): 32bit PCI DMA is not supported\n", __func__);
817 dev_info(&pci_dev->dev, "%s(): using 32bit PCI DMA\n", __func__);
818 /* Clear "no snoop" and "relaxed ordering" bits, use default MRRS. */
819 pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL,
820 PCI_EXP_DEVCTL_READRQ | PCI_EXP_DEVCTL_RELAX_EN |
821 PCI_EXP_DEVCTL_NOSNOOP_EN, 0);
822 /* Adjust PCIe completion timeout. */
823 pcie_capability_clear_and_set_word(pci_dev,
824 PCI_EXP_DEVCTL2, 0xf, 0x2);
826 if (netup_unidvb_request_mmio(pci_dev)) {
827 dev_err(&pci_dev->dev,
828 "%s(): unable to request MMIO regions\n", __func__);
831 ndev->lmmio0 = ioremap(pci_resource_start(pci_dev, 0),
832 pci_resource_len(pci_dev, 0));
834 dev_err(&pci_dev->dev,
835 "%s(): unable to remap MMIO bar 0\n", __func__);
838 ndev->lmmio1 = ioremap(pci_resource_start(pci_dev, 1),
839 pci_resource_len(pci_dev, 1));
841 dev_err(&pci_dev->dev,
842 "%s(): unable to remap MMIO bar 1\n", __func__);
845 ndev->bmmio0 = (u8 __iomem *)ndev->lmmio0;
846 ndev->bmmio1 = (u8 __iomem *)ndev->lmmio1;
847 dev_info(&pci_dev->dev,
848 "%s(): PCI MMIO at 0x%p (%d); 0x%p (%d); IRQ %d",
850 ndev->lmmio0, (u32)pci_resource_len(pci_dev, 0),
851 ndev->lmmio1, (u32)pci_resource_len(pci_dev, 1),
853 if (request_irq(pci_dev->irq, netup_unidvb_isr, IRQF_SHARED,
854 "netup_unidvb", pci_dev) < 0) {
855 dev_err(&pci_dev->dev,
856 "%s(): can't get IRQ %d\n", __func__, pci_dev->irq);
857 goto irq_request_err;
859 ndev->dma_size = 2 * 188 *
860 NETUP_DMA_BLOCKS_COUNT * NETUP_DMA_PACKETS_COUNT;
861 ndev->dma_virt = dma_alloc_coherent(&pci_dev->dev,
862 ndev->dma_size, &ndev->dma_phys, GFP_KERNEL);
863 if (!ndev->dma_virt) {
864 dev_err(&pci_dev->dev, "%s(): unable to allocate DMA buffer\n",
868 netup_unidvb_dev_enable(ndev);
869 if (spi_enable && netup_spi_init(ndev)) {
870 dev_warn(&pci_dev->dev,
871 "netup_unidvb: SPI flash setup failed\n");
875 dev_err(&pci_dev->dev,
876 "netup_unidvb: card initialization was incomplete\n");
879 if (netup_i2c_register(ndev)) {
880 dev_err(&pci_dev->dev, "netup_unidvb: I2C setup failed\n");
883 /* enable I2C IRQs */
884 writew(NETUP_UNIDVB_IRQ_I2C0 | NETUP_UNIDVB_IRQ_I2C1,
885 ndev->bmmio0 + REG_IMASK_SET);
886 usleep_range(5000, 10000);
887 if (netup_unidvb_dvb_setup(ndev)) {
888 dev_err(&pci_dev->dev, "netup_unidvb: DVB setup failed\n");
891 if (netup_unidvb_ci_setup(ndev, pci_dev)) {
892 dev_err(&pci_dev->dev, "netup_unidvb: CI setup failed\n");
895 if (netup_unidvb_dma_setup(ndev)) {
896 dev_err(&pci_dev->dev, "netup_unidvb: DMA setup failed\n");
899 dev_info(&pci_dev->dev,
900 "netup_unidvb: device has been initialized\n");
903 netup_unidvb_ci_unregister(ndev, 0);
904 netup_unidvb_ci_unregister(ndev, 1);
906 netup_unidvb_dvb_fini(ndev, 0);
907 netup_unidvb_dvb_fini(ndev, 1);
909 netup_i2c_unregister(ndev);
912 netup_spi_release(ndev);
914 dma_free_coherent(&pci_dev->dev, ndev->dma_size,
915 ndev->dma_virt, ndev->dma_phys);
917 free_irq(pci_dev->irq, pci_dev);
919 iounmap(ndev->lmmio1);
921 iounmap(ndev->lmmio0);
923 release_mem_region(pci_resource_start(pci_dev, 0),
924 pci_resource_len(pci_dev, 0));
925 release_mem_region(pci_resource_start(pci_dev, 1),
926 pci_resource_len(pci_dev, 1));
928 pci_disable_device(pci_dev);
930 pci_set_drvdata(pci_dev, NULL);
931 destroy_workqueue(ndev->wq);
935 dev_err(&pci_dev->dev,
936 "%s(): failed to initizalize device\n", __func__);
940 static void netup_unidvb_finidev(struct pci_dev *pci_dev)
942 struct netup_unidvb_dev *ndev = pci_get_drvdata(pci_dev);
944 dev_info(&pci_dev->dev, "%s(): trying to stop device\n", __func__);
946 netup_unidvb_dma_fini(ndev, 0);
947 netup_unidvb_dma_fini(ndev, 1);
948 netup_unidvb_ci_unregister(ndev, 0);
949 netup_unidvb_ci_unregister(ndev, 1);
950 netup_unidvb_dvb_fini(ndev, 0);
951 netup_unidvb_dvb_fini(ndev, 1);
952 netup_i2c_unregister(ndev);
955 netup_spi_release(ndev);
956 writew(0xffff, ndev->bmmio0 + REG_IMASK_CLEAR);
957 dma_free_coherent(&ndev->pci_dev->dev, ndev->dma_size,
958 ndev->dma_virt, ndev->dma_phys);
959 free_irq(pci_dev->irq, pci_dev);
960 iounmap(ndev->lmmio0);
961 iounmap(ndev->lmmio1);
962 release_mem_region(pci_resource_start(pci_dev, 0),
963 pci_resource_len(pci_dev, 0));
964 release_mem_region(pci_resource_start(pci_dev, 1),
965 pci_resource_len(pci_dev, 1));
966 pci_disable_device(pci_dev);
967 pci_set_drvdata(pci_dev, NULL);
968 destroy_workqueue(ndev->wq);
970 dev_info(&pci_dev->dev,
971 "%s(): device has been successfully stopped\n", __func__);
975 static struct pci_device_id netup_unidvb_pci_tbl[] = {
976 { PCI_DEVICE(0x1b55, 0x18f6) },
979 MODULE_DEVICE_TABLE(pci, netup_unidvb_pci_tbl);
981 static struct pci_driver netup_unidvb_pci_driver = {
982 .name = "netup_unidvb",
983 .id_table = netup_unidvb_pci_tbl,
984 .probe = netup_unidvb_initdev,
985 .remove = netup_unidvb_finidev,
990 static int __init netup_unidvb_init(void)
992 return pci_register_driver(&netup_unidvb_pci_driver);
995 static void __exit netup_unidvb_fini(void)
997 pci_unregister_driver(&netup_unidvb_pci_driver);
1000 module_init(netup_unidvb_init);
1001 module_exit(netup_unidvb_fini);