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-v4l2.h>
31 #include <media/videobuf2-vmalloc.h>
33 #include "netup_unidvb.h"
34 #include "cxd2841er.h"
40 static int spi_enable;
41 module_param(spi_enable, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
43 MODULE_DESCRIPTION("Driver for NetUP Dual Universal DVB CI PCIe card");
44 MODULE_AUTHOR("info@netup.ru");
45 MODULE_VERSION(NETUP_UNIDVB_VERSION);
46 MODULE_LICENSE("GPL");
48 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
50 /* Avalon-MM PCI-E registers */
51 #define AVL_PCIE_IENR 0x50
52 #define AVL_PCIE_ISR 0x40
53 #define AVL_IRQ_ENABLE 0x80
54 #define AVL_IRQ_ASSERTED 0x80
56 #define GPIO_REG_IO 0x4880
57 #define GPIO_REG_IO_TOGGLE 0x4882
58 #define GPIO_REG_IO_SET 0x4884
59 #define GPIO_REG_IO_CLEAR 0x4886
61 #define GPIO_FEA_RESET (1 << 0)
62 #define GPIO_FEB_RESET (1 << 1)
63 #define GPIO_RFA_CTL (1 << 2)
64 #define GPIO_RFB_CTL (1 << 3)
65 #define GPIO_FEA_TU_RESET (1 << 4)
66 #define GPIO_FEB_TU_RESET (1 << 5)
67 /* DMA base address */
68 #define NETUP_DMA0_ADDR 0x4900
69 #define NETUP_DMA1_ADDR 0x4940
70 /* 8 DMA blocks * 128 packets * 188 bytes*/
71 #define NETUP_DMA_BLOCKS_COUNT 8
72 #define NETUP_DMA_PACKETS_COUNT 128
75 #define BIT_DMA_ERROR 2
76 #define BIT_DMA_IRQ 0x200
79 * struct netup_dma_regs - the map of DMA module registers
80 * @ctrlstat_set: Control register, write to set control bits
81 * @ctrlstat_clear: Control register, write to clear control bits
82 * @start_addr_lo: DMA ring buffer start address, lower part
83 * @start_addr_hi: DMA ring buffer start address, higher part
84 * @size: DMA ring buffer size register
85 Bits [0-7]: DMA packet size, 188 bytes
86 Bits [16-23]: packets count in block, 128 packets
87 Bits [24-31]: blocks count, 8 blocks
88 * @timeout: DMA timeout in units of 8ns
89 For example, value of 375000000 equals to 3 sec
90 * @curr_addr_lo: Current ring buffer head address, lower part
91 * @curr_addr_hi: Current ring buffer head address, higher part
92 * @stat_pkt_received: Statistic register, not tested
93 * @stat_pkt_accepted: Statistic register, not tested
94 * @stat_pkt_overruns: Statistic register, not tested
95 * @stat_pkt_underruns: Statistic register, not tested
96 * @stat_fifo_overruns: Statistic register, not tested
98 struct netup_dma_regs {
100 __le32 ctrlstat_clear;
101 __le32 start_addr_lo;
102 __le32 start_addr_hi;
107 __le32 stat_pkt_received;
108 __le32 stat_pkt_accepted;
109 __le32 stat_pkt_overruns;
110 __le32 stat_pkt_underruns;
111 __le32 stat_fifo_overruns;
112 } __packed __aligned(1);
114 struct netup_unidvb_buffer {
115 struct vb2_v4l2_buffer vb;
116 struct list_head list;
120 static int netup_unidvb_tuner_ctrl(void *priv, int is_dvb_tc);
121 static void netup_unidvb_queue_cleanup(struct netup_dma *dma);
123 static struct cxd2841er_config demod_config = {
125 .xtal = SONY_XTAL_24000
128 static struct horus3a_config horus3a_conf = {
131 .set_tuner_callback = netup_unidvb_tuner_ctrl
134 static struct ascot2e_config ascot2e_conf = {
136 .set_tuner_callback = netup_unidvb_tuner_ctrl
139 static struct helene_config helene_conf = {
141 .xtal = SONY_HELENE_XTAL_24000,
142 .set_tuner_callback = netup_unidvb_tuner_ctrl
145 static struct lnbh25_config lnbh25_conf = {
147 .data2_config = LNBH25_TEN | LNBH25_EXTM
150 static int netup_unidvb_tuner_ctrl(void *priv, int is_dvb_tc)
153 struct netup_dma *dma = priv;
154 struct netup_unidvb_dev *ndev;
159 dev_dbg(&ndev->pci_dev->dev, "%s(): num %d is_dvb_tc %d\n",
160 __func__, dma->num, is_dvb_tc);
161 reg = readb(ndev->bmmio0 + GPIO_REG_IO);
162 mask = (dma->num == 0) ? GPIO_RFA_CTL : GPIO_RFB_CTL;
164 /* inverted tuner control in hw rev. 1.4 */
165 if (ndev->rev == NETUP_HW_REV_1_4)
166 is_dvb_tc = !is_dvb_tc;
172 writeb(reg, ndev->bmmio0 + GPIO_REG_IO);
176 static void netup_unidvb_dev_enable(struct netup_unidvb_dev *ndev)
180 /* enable PCI-E interrupts */
181 writel(AVL_IRQ_ENABLE, ndev->bmmio0 + AVL_PCIE_IENR);
182 /* unreset frontends bits[0:1] */
183 writeb(0x00, ndev->bmmio0 + GPIO_REG_IO);
186 GPIO_FEA_RESET | GPIO_FEB_RESET |
187 GPIO_FEA_TU_RESET | GPIO_FEB_TU_RESET |
188 GPIO_RFA_CTL | GPIO_RFB_CTL;
189 writeb(gpio_reg, ndev->bmmio0 + GPIO_REG_IO);
190 dev_dbg(&ndev->pci_dev->dev,
191 "%s(): AVL_PCIE_IENR 0x%x GPIO_REG_IO 0x%x\n",
192 __func__, readl(ndev->bmmio0 + AVL_PCIE_IENR),
193 (int)readb(ndev->bmmio0 + GPIO_REG_IO));
197 static void netup_unidvb_dma_enable(struct netup_dma *dma, int enable)
199 u32 irq_mask = (dma->num == 0 ?
200 NETUP_UNIDVB_IRQ_DMA1 : NETUP_UNIDVB_IRQ_DMA2);
202 dev_dbg(&dma->ndev->pci_dev->dev,
203 "%s(): DMA%d enable %d\n", __func__, dma->num, enable);
205 writel(BIT_DMA_RUN, &dma->regs->ctrlstat_set);
206 writew(irq_mask, dma->ndev->bmmio0 + REG_IMASK_SET);
208 writel(BIT_DMA_RUN, &dma->regs->ctrlstat_clear);
209 writew(irq_mask, dma->ndev->bmmio0 + REG_IMASK_CLEAR);
213 static irqreturn_t netup_dma_interrupt(struct netup_dma *dma)
218 struct device *dev = &dma->ndev->pci_dev->dev;
220 spin_lock_irqsave(&dma->lock, flags);
221 addr_curr = ((u64)readl(&dma->regs->curr_addr_hi) << 32) |
222 (u64)readl(&dma->regs->curr_addr_lo) | dma->high_addr;
224 writel(BIT_DMA_IRQ, &dma->regs->ctrlstat_clear);
226 if (addr_curr < dma->addr_phys ||
227 addr_curr > dma->addr_phys + dma->ring_buffer_size) {
228 if (addr_curr != 0) {
230 "%s(): addr 0x%llx not from 0x%llx:0x%llx\n",
231 __func__, addr_curr, (u64)dma->addr_phys,
232 (u64)(dma->addr_phys + dma->ring_buffer_size));
236 size = (addr_curr >= dma->addr_last) ?
237 (u32)(addr_curr - dma->addr_last) :
238 (u32)(dma->ring_buffer_size - (dma->addr_last - addr_curr));
239 if (dma->data_size != 0) {
240 printk_ratelimited("%s(): lost interrupt, data size %d\n",
241 __func__, dma->data_size);
242 dma->data_size += size;
244 if (dma->data_size == 0 || dma->data_size > dma->ring_buffer_size) {
245 dma->data_size = size;
246 dma->data_offset = (u32)(dma->addr_last - dma->addr_phys);
248 dma->addr_last = addr_curr;
249 queue_work(dma->ndev->wq, &dma->work);
251 spin_unlock_irqrestore(&dma->lock, flags);
255 static irqreturn_t netup_unidvb_isr(int irq, void *dev_id)
257 struct pci_dev *pci_dev = (struct pci_dev *)dev_id;
258 struct netup_unidvb_dev *ndev = pci_get_drvdata(pci_dev);
260 irqreturn_t iret = IRQ_NONE;
262 /* disable interrupts */
263 writel(0, ndev->bmmio0 + AVL_PCIE_IENR);
264 /* check IRQ source */
265 reg40 = readl(ndev->bmmio0 + AVL_PCIE_ISR);
266 if ((reg40 & AVL_IRQ_ASSERTED) != 0) {
267 /* IRQ is being signaled */
268 reg_isr = readw(ndev->bmmio0 + REG_ISR);
269 if (reg_isr & NETUP_UNIDVB_IRQ_SPI)
270 iret = netup_spi_interrupt(ndev->spi);
271 else if (!ndev->old_fw) {
272 if (reg_isr & NETUP_UNIDVB_IRQ_I2C0) {
273 iret = netup_i2c_interrupt(&ndev->i2c[0]);
274 } else if (reg_isr & NETUP_UNIDVB_IRQ_I2C1) {
275 iret = netup_i2c_interrupt(&ndev->i2c[1]);
276 } else if (reg_isr & NETUP_UNIDVB_IRQ_DMA1) {
277 iret = netup_dma_interrupt(&ndev->dma[0]);
278 } else if (reg_isr & NETUP_UNIDVB_IRQ_DMA2) {
279 iret = netup_dma_interrupt(&ndev->dma[1]);
280 } else if (reg_isr & NETUP_UNIDVB_IRQ_CI) {
281 iret = netup_ci_interrupt(ndev);
287 dev_err(&pci_dev->dev,
288 "%s(): unknown interrupt 0x%x\n",
292 /* re-enable interrupts */
293 writel(AVL_IRQ_ENABLE, ndev->bmmio0 + AVL_PCIE_IENR);
297 static int netup_unidvb_queue_setup(struct vb2_queue *vq,
298 unsigned int *nbuffers,
299 unsigned int *nplanes,
300 unsigned int sizes[],
301 struct device *alloc_devs[])
303 struct netup_dma *dma = vb2_get_drv_priv(vq);
305 dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
308 if (vq->num_buffers + *nbuffers < VIDEO_MAX_FRAME)
309 *nbuffers = VIDEO_MAX_FRAME - vq->num_buffers;
310 sizes[0] = PAGE_ALIGN(NETUP_DMA_PACKETS_COUNT * 188);
311 dev_dbg(&dma->ndev->pci_dev->dev, "%s() nbuffers=%d sizes[0]=%d\n",
312 __func__, *nbuffers, sizes[0]);
316 static int netup_unidvb_buf_prepare(struct vb2_buffer *vb)
318 struct netup_dma *dma = vb2_get_drv_priv(vb->vb2_queue);
319 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
320 struct netup_unidvb_buffer *buf = container_of(vbuf,
321 struct netup_unidvb_buffer, vb);
323 dev_dbg(&dma->ndev->pci_dev->dev, "%s(): buf 0x%p\n", __func__, buf);
328 static void netup_unidvb_buf_queue(struct vb2_buffer *vb)
331 struct netup_dma *dma = vb2_get_drv_priv(vb->vb2_queue);
332 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
333 struct netup_unidvb_buffer *buf = container_of(vbuf,
334 struct netup_unidvb_buffer, vb);
336 dev_dbg(&dma->ndev->pci_dev->dev, "%s(): %p\n", __func__, buf);
337 spin_lock_irqsave(&dma->lock, flags);
338 list_add_tail(&buf->list, &dma->free_buffers);
339 spin_unlock_irqrestore(&dma->lock, flags);
340 mod_timer(&dma->timeout, jiffies + msecs_to_jiffies(1000));
343 static int netup_unidvb_start_streaming(struct vb2_queue *q, unsigned int count)
345 struct netup_dma *dma = vb2_get_drv_priv(q);
347 dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
348 netup_unidvb_dma_enable(dma, 1);
352 static void netup_unidvb_stop_streaming(struct vb2_queue *q)
354 struct netup_dma *dma = vb2_get_drv_priv(q);
356 dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
357 netup_unidvb_dma_enable(dma, 0);
358 netup_unidvb_queue_cleanup(dma);
361 static const struct vb2_ops dvb_qops = {
362 .queue_setup = netup_unidvb_queue_setup,
363 .buf_prepare = netup_unidvb_buf_prepare,
364 .buf_queue = netup_unidvb_buf_queue,
365 .start_streaming = netup_unidvb_start_streaming,
366 .stop_streaming = netup_unidvb_stop_streaming,
369 static int netup_unidvb_queue_init(struct netup_dma *dma,
370 struct vb2_queue *vb_queue)
374 /* Init videobuf2 queue structure */
375 vb_queue->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
376 vb_queue->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
377 vb_queue->drv_priv = dma;
378 vb_queue->buf_struct_size = sizeof(struct netup_unidvb_buffer);
379 vb_queue->ops = &dvb_qops;
380 vb_queue->mem_ops = &vb2_vmalloc_memops;
381 vb_queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
382 res = vb2_queue_init(vb_queue);
384 dev_err(&dma->ndev->pci_dev->dev,
385 "%s(): vb2_queue_init failed (%d)\n", __func__, res);
390 static int netup_unidvb_dvb_init(struct netup_unidvb_dev *ndev,
395 struct vb2_dvb_frontend *fes[2];
398 if (ndev->rev == NETUP_HW_REV_1_3)
399 demod_config.xtal = SONY_XTAL_20500;
401 demod_config.xtal = SONY_XTAL_24000;
403 if (num < 0 || num > 1) {
404 dev_dbg(&ndev->pci_dev->dev,
405 "%s(): unable to init DVB bus %d\n", __func__, num);
408 mutex_init(&ndev->frontends[num].lock);
409 INIT_LIST_HEAD(&ndev->frontends[num].felist);
411 for (i = 0; i < fe_count; i++) {
412 if (vb2_dvb_alloc_frontend(&ndev->frontends[num], i+1)
414 dev_err(&ndev->pci_dev->dev,
415 "%s(): unable to allocate vb2_dvb_frontend\n",
421 for (i = 0; i < fe_count; i++) {
422 fes[i] = vb2_dvb_get_frontend(&ndev->frontends[num], i+1);
423 if (fes[i] == NULL) {
424 dev_err(&ndev->pci_dev->dev,
425 "%s(): frontends has not been allocated\n",
431 for (i = 0; i < fe_count; i++) {
432 netup_unidvb_queue_init(&ndev->dma[num], &fes[i]->dvb.dvbq);
433 snprintf(fe_name, sizeof(fe_name), "netup_fe%d", i);
434 fes[i]->dvb.name = fe_name;
437 fes[0]->dvb.frontend = dvb_attach(cxd2841er_attach_s,
438 &demod_config, &ndev->i2c[num].adap);
439 if (fes[0]->dvb.frontend == NULL) {
440 dev_dbg(&ndev->pci_dev->dev,
441 "%s(): unable to attach DVB-S/S2 frontend\n",
443 goto frontend_detach;
446 if (ndev->rev == NETUP_HW_REV_1_3) {
447 horus3a_conf.set_tuner_priv = &ndev->dma[num];
448 if (!dvb_attach(horus3a_attach, fes[0]->dvb.frontend,
449 &horus3a_conf, &ndev->i2c[num].adap)) {
450 dev_dbg(&ndev->pci_dev->dev,
451 "%s(): unable to attach HORUS3A DVB-S/S2 tuner frontend\n",
453 goto frontend_detach;
456 helene_conf.set_tuner_priv = &ndev->dma[num];
457 if (!dvb_attach(helene_attach_s, fes[0]->dvb.frontend,
458 &helene_conf, &ndev->i2c[num].adap)) {
459 dev_err(&ndev->pci_dev->dev,
460 "%s(): unable to attach HELENE DVB-S/S2 tuner frontend\n",
462 goto frontend_detach;
466 if (!dvb_attach(lnbh25_attach, fes[0]->dvb.frontend,
467 &lnbh25_conf, &ndev->i2c[num].adap)) {
468 dev_dbg(&ndev->pci_dev->dev,
469 "%s(): unable to attach SEC frontend\n", __func__);
470 goto frontend_detach;
473 /* DVB-T/T2 frontend */
474 fes[1]->dvb.frontend = dvb_attach(cxd2841er_attach_t_c,
475 &demod_config, &ndev->i2c[num].adap);
476 if (fes[1]->dvb.frontend == NULL) {
477 dev_dbg(&ndev->pci_dev->dev,
478 "%s(): unable to attach Ter frontend\n", __func__);
479 goto frontend_detach;
481 fes[1]->dvb.frontend->id = 1;
482 if (ndev->rev == NETUP_HW_REV_1_3) {
483 ascot2e_conf.set_tuner_priv = &ndev->dma[num];
484 if (!dvb_attach(ascot2e_attach, fes[1]->dvb.frontend,
485 &ascot2e_conf, &ndev->i2c[num].adap)) {
486 dev_dbg(&ndev->pci_dev->dev,
487 "%s(): unable to attach Ter tuner frontend\n",
489 goto frontend_detach;
492 helene_conf.set_tuner_priv = &ndev->dma[num];
493 if (!dvb_attach(helene_attach, fes[1]->dvb.frontend,
494 &helene_conf, &ndev->i2c[num].adap)) {
495 dev_err(&ndev->pci_dev->dev,
496 "%s(): unable to attach HELENE Ter tuner frontend\n",
498 goto frontend_detach;
502 if (vb2_dvb_register_bus(&ndev->frontends[num],
504 &ndev->pci_dev->dev, NULL, adapter_nr, 1)) {
505 dev_dbg(&ndev->pci_dev->dev,
506 "%s(): unable to register DVB bus %d\n",
508 goto frontend_detach;
510 dev_info(&ndev->pci_dev->dev, "DVB init done, num=%d\n", num);
513 vb2_dvb_dealloc_frontends(&ndev->frontends[num]);
517 static void netup_unidvb_dvb_fini(struct netup_unidvb_dev *ndev, int num)
519 if (num < 0 || num > 1) {
520 dev_err(&ndev->pci_dev->dev,
521 "%s(): unable to unregister DVB bus %d\n",
525 vb2_dvb_unregister_bus(&ndev->frontends[num]);
526 dev_info(&ndev->pci_dev->dev,
527 "%s(): DVB bus %d unregistered\n", __func__, num);
530 static int netup_unidvb_dvb_setup(struct netup_unidvb_dev *ndev)
534 res = netup_unidvb_dvb_init(ndev, 0);
537 res = netup_unidvb_dvb_init(ndev, 1);
539 netup_unidvb_dvb_fini(ndev, 0);
545 static int netup_unidvb_ring_copy(struct netup_dma *dma,
546 struct netup_unidvb_buffer *buf)
548 u32 copy_bytes, ring_bytes;
549 u32 buff_bytes = NETUP_DMA_PACKETS_COUNT * 188 - buf->size;
550 u8 *p = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
551 struct netup_unidvb_dev *ndev = dma->ndev;
554 dev_err(&ndev->pci_dev->dev,
555 "%s(): buffer is NULL\n", __func__);
559 if (dma->data_offset + dma->data_size > dma->ring_buffer_size) {
560 ring_bytes = dma->ring_buffer_size - dma->data_offset;
561 copy_bytes = (ring_bytes > buff_bytes) ?
562 buff_bytes : ring_bytes;
563 memcpy_fromio(p, (u8 __iomem *)(dma->addr_virt + dma->data_offset), copy_bytes);
565 buf->size += copy_bytes;
566 buff_bytes -= copy_bytes;
567 dma->data_size -= copy_bytes;
568 dma->data_offset += copy_bytes;
569 if (dma->data_offset == dma->ring_buffer_size)
570 dma->data_offset = 0;
572 if (buff_bytes > 0) {
573 ring_bytes = dma->data_size;
574 copy_bytes = (ring_bytes > buff_bytes) ?
575 buff_bytes : ring_bytes;
576 memcpy_fromio(p, (u8 __iomem *)(dma->addr_virt + dma->data_offset), copy_bytes);
577 buf->size += copy_bytes;
578 dma->data_size -= copy_bytes;
579 dma->data_offset += copy_bytes;
580 if (dma->data_offset == dma->ring_buffer_size)
581 dma->data_offset = 0;
586 static void netup_unidvb_dma_worker(struct work_struct *work)
588 struct netup_dma *dma = container_of(work, struct netup_dma, work);
589 struct netup_unidvb_dev *ndev = dma->ndev;
590 struct netup_unidvb_buffer *buf;
593 spin_lock_irqsave(&dma->lock, flags);
594 if (dma->data_size == 0) {
595 dev_dbg(&ndev->pci_dev->dev,
596 "%s(): data_size == 0\n", __func__);
599 while (dma->data_size > 0) {
600 if (list_empty(&dma->free_buffers)) {
601 dev_dbg(&ndev->pci_dev->dev,
602 "%s(): no free buffers\n", __func__);
605 buf = list_first_entry(&dma->free_buffers,
606 struct netup_unidvb_buffer, list);
607 if (buf->size >= NETUP_DMA_PACKETS_COUNT * 188) {
608 dev_dbg(&ndev->pci_dev->dev,
609 "%s(): buffer overflow, size %d\n",
610 __func__, buf->size);
613 if (netup_unidvb_ring_copy(dma, buf))
615 if (buf->size == NETUP_DMA_PACKETS_COUNT * 188) {
616 list_del(&buf->list);
617 dev_dbg(&ndev->pci_dev->dev,
618 "%s(): buffer %p done, size %d\n",
619 __func__, buf, buf->size);
620 buf->vb.vb2_buf.timestamp = ktime_get_ns();
621 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->size);
622 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
627 spin_unlock_irqrestore(&dma->lock, flags);
630 static void netup_unidvb_queue_cleanup(struct netup_dma *dma)
632 struct netup_unidvb_buffer *buf;
635 spin_lock_irqsave(&dma->lock, flags);
636 while (!list_empty(&dma->free_buffers)) {
637 buf = list_first_entry(&dma->free_buffers,
638 struct netup_unidvb_buffer, list);
639 list_del(&buf->list);
640 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
642 spin_unlock_irqrestore(&dma->lock, flags);
645 static void netup_unidvb_dma_timeout(unsigned long data)
647 struct netup_dma *dma = (struct netup_dma *)data;
648 struct netup_unidvb_dev *ndev = dma->ndev;
650 dev_dbg(&ndev->pci_dev->dev, "%s()\n", __func__);
651 netup_unidvb_queue_cleanup(dma);
654 static int netup_unidvb_dma_init(struct netup_unidvb_dev *ndev, int num)
656 struct netup_dma *dma;
657 struct device *dev = &ndev->pci_dev->dev;
659 if (num < 0 || num > 1) {
660 dev_err(dev, "%s(): unable to register DMA%d\n",
664 dma = &ndev->dma[num];
665 dev_info(dev, "%s(): starting DMA%d\n", __func__, num);
668 spin_lock_init(&dma->lock);
669 INIT_WORK(&dma->work, netup_unidvb_dma_worker);
670 INIT_LIST_HEAD(&dma->free_buffers);
671 dma->timeout.function = netup_unidvb_dma_timeout;
672 dma->timeout.data = (unsigned long)dma;
673 init_timer(&dma->timeout);
674 dma->ring_buffer_size = ndev->dma_size / 2;
675 dma->addr_virt = ndev->dma_virt + dma->ring_buffer_size * num;
676 dma->addr_phys = (dma_addr_t)((u64)ndev->dma_phys +
677 dma->ring_buffer_size * num);
678 dev_info(dev, "%s(): DMA%d buffer virt/phys 0x%p/0x%llx size %d\n",
679 __func__, num, dma->addr_virt,
680 (unsigned long long)dma->addr_phys,
681 dma->ring_buffer_size);
682 memset_io((u8 __iomem *)dma->addr_virt, 0, dma->ring_buffer_size);
683 dma->addr_last = dma->addr_phys;
684 dma->high_addr = (u32)(dma->addr_phys & 0xC0000000);
685 dma->regs = (struct netup_dma_regs __iomem *)(num == 0 ?
686 ndev->bmmio0 + NETUP_DMA0_ADDR :
687 ndev->bmmio0 + NETUP_DMA1_ADDR);
688 writel((NETUP_DMA_BLOCKS_COUNT << 24) |
689 (NETUP_DMA_PACKETS_COUNT << 8) | 188, &dma->regs->size);
690 writel((u32)(dma->addr_phys & 0x3FFFFFFF), &dma->regs->start_addr_lo);
691 writel(0, &dma->regs->start_addr_hi);
692 writel(dma->high_addr, ndev->bmmio0 + 0x1000);
693 writel(375000000, &dma->regs->timeout);
695 writel(BIT_DMA_IRQ, &dma->regs->ctrlstat_clear);
699 static void netup_unidvb_dma_fini(struct netup_unidvb_dev *ndev, int num)
701 struct netup_dma *dma;
703 if (num < 0 || num > 1)
705 dev_dbg(&ndev->pci_dev->dev, "%s(): num %d\n", __func__, num);
706 dma = &ndev->dma[num];
707 netup_unidvb_dma_enable(dma, 0);
709 cancel_work_sync(&dma->work);
710 del_timer(&dma->timeout);
713 static int netup_unidvb_dma_setup(struct netup_unidvb_dev *ndev)
717 res = netup_unidvb_dma_init(ndev, 0);
720 res = netup_unidvb_dma_init(ndev, 1);
722 netup_unidvb_dma_fini(ndev, 0);
725 netup_unidvb_dma_enable(&ndev->dma[0], 0);
726 netup_unidvb_dma_enable(&ndev->dma[1], 0);
730 static int netup_unidvb_ci_setup(struct netup_unidvb_dev *ndev,
731 struct pci_dev *pci_dev)
735 writew(NETUP_UNIDVB_IRQ_CI, ndev->bmmio0 + REG_IMASK_SET);
736 res = netup_unidvb_ci_register(ndev, 0, pci_dev);
739 res = netup_unidvb_ci_register(ndev, 1, pci_dev);
741 netup_unidvb_ci_unregister(ndev, 0);
745 static int netup_unidvb_request_mmio(struct pci_dev *pci_dev)
747 if (!request_mem_region(pci_resource_start(pci_dev, 0),
748 pci_resource_len(pci_dev, 0), NETUP_UNIDVB_NAME)) {
749 dev_err(&pci_dev->dev,
750 "%s(): unable to request MMIO bar 0 at 0x%llx\n",
752 (unsigned long long)pci_resource_start(pci_dev, 0));
755 if (!request_mem_region(pci_resource_start(pci_dev, 1),
756 pci_resource_len(pci_dev, 1), NETUP_UNIDVB_NAME)) {
757 dev_err(&pci_dev->dev,
758 "%s(): unable to request MMIO bar 1 at 0x%llx\n",
760 (unsigned long long)pci_resource_start(pci_dev, 1));
761 release_mem_region(pci_resource_start(pci_dev, 0),
762 pci_resource_len(pci_dev, 0));
768 static int netup_unidvb_request_modules(struct device *dev)
770 static const char * const modules[] = {
771 "lnbh25", "ascot2e", "horus3a", "cxd2841er", "helene", NULL
773 const char * const *curr_mod = modules;
776 while (*curr_mod != NULL) {
777 err = request_module(*curr_mod);
779 dev_warn(dev, "request_module(%s) failed: %d\n",
787 static int netup_unidvb_initdev(struct pci_dev *pci_dev,
788 const struct pci_device_id *pci_id)
792 struct netup_unidvb_dev *ndev;
793 int old_firmware = 0;
795 netup_unidvb_request_modules(&pci_dev->dev);
797 /* Check card revision */
798 if (pci_dev->revision != NETUP_PCI_DEV_REVISION) {
799 dev_err(&pci_dev->dev,
800 "netup_unidvb: expected card revision %d, got %d\n",
801 NETUP_PCI_DEV_REVISION, pci_dev->revision);
802 dev_err(&pci_dev->dev,
803 "Please upgrade firmware!\n");
804 dev_err(&pci_dev->dev,
805 "Instructions on http://www.netup.tv\n");
810 /* allocate device context */
811 ndev = kzalloc(sizeof(*ndev), GFP_KERNEL);
815 /* detect hardware revision */
816 if (pci_dev->device == NETUP_HW_REV_1_3)
817 ndev->rev = NETUP_HW_REV_1_3;
819 ndev->rev = NETUP_HW_REV_1_4;
821 dev_info(&pci_dev->dev,
822 "%s(): board (0x%x) hardware revision 0x%x\n",
823 __func__, pci_dev->device, ndev->rev);
825 ndev->old_fw = old_firmware;
826 ndev->wq = create_singlethread_workqueue(NETUP_UNIDVB_NAME);
828 dev_err(&pci_dev->dev,
829 "%s(): unable to create workqueue\n", __func__);
832 ndev->pci_dev = pci_dev;
833 ndev->pci_bus = pci_dev->bus->number;
834 ndev->pci_slot = PCI_SLOT(pci_dev->devfn);
835 ndev->pci_func = PCI_FUNC(pci_dev->devfn);
836 ndev->board_num = ndev->pci_bus*10 + ndev->pci_slot;
837 pci_set_drvdata(pci_dev, ndev);
839 dev_info(&pci_dev->dev, "%s(): PCI device (%d). Bus:0x%x Slot:0x%x\n",
840 __func__, ndev->board_num, ndev->pci_bus, ndev->pci_slot);
842 if (pci_enable_device(pci_dev)) {
843 dev_err(&pci_dev->dev, "%s(): pci_enable_device failed\n",
848 pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &board_revision);
849 pci_read_config_word(pci_dev, PCI_VENDOR_ID, &board_vendor);
850 if (board_vendor != NETUP_VENDOR_ID) {
851 dev_err(&pci_dev->dev, "%s(): unknown board vendor 0x%x",
852 __func__, board_vendor);
855 dev_info(&pci_dev->dev,
856 "%s(): board vendor 0x%x, revision 0x%x\n",
857 __func__, board_vendor, board_revision);
858 pci_set_master(pci_dev);
859 if (pci_set_dma_mask(pci_dev, 0xffffffff) < 0) {
860 dev_err(&pci_dev->dev,
861 "%s(): 32bit PCI DMA is not supported\n", __func__);
864 dev_info(&pci_dev->dev, "%s(): using 32bit PCI DMA\n", __func__);
865 /* Clear "no snoop" and "relaxed ordering" bits, use default MRRS. */
866 pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL,
867 PCI_EXP_DEVCTL_READRQ | PCI_EXP_DEVCTL_RELAX_EN |
868 PCI_EXP_DEVCTL_NOSNOOP_EN, 0);
869 /* Adjust PCIe completion timeout. */
870 pcie_capability_clear_and_set_word(pci_dev,
871 PCI_EXP_DEVCTL2, 0xf, 0x2);
873 if (netup_unidvb_request_mmio(pci_dev)) {
874 dev_err(&pci_dev->dev,
875 "%s(): unable to request MMIO regions\n", __func__);
878 ndev->lmmio0 = ioremap(pci_resource_start(pci_dev, 0),
879 pci_resource_len(pci_dev, 0));
881 dev_err(&pci_dev->dev,
882 "%s(): unable to remap MMIO bar 0\n", __func__);
885 ndev->lmmio1 = ioremap(pci_resource_start(pci_dev, 1),
886 pci_resource_len(pci_dev, 1));
888 dev_err(&pci_dev->dev,
889 "%s(): unable to remap MMIO bar 1\n", __func__);
892 ndev->bmmio0 = (u8 __iomem *)ndev->lmmio0;
893 ndev->bmmio1 = (u8 __iomem *)ndev->lmmio1;
894 dev_info(&pci_dev->dev,
895 "%s(): PCI MMIO at 0x%p (%d); 0x%p (%d); IRQ %d",
897 ndev->lmmio0, (u32)pci_resource_len(pci_dev, 0),
898 ndev->lmmio1, (u32)pci_resource_len(pci_dev, 1),
900 if (request_irq(pci_dev->irq, netup_unidvb_isr, IRQF_SHARED,
901 "netup_unidvb", pci_dev) < 0) {
902 dev_err(&pci_dev->dev,
903 "%s(): can't get IRQ %d\n", __func__, pci_dev->irq);
904 goto irq_request_err;
906 ndev->dma_size = 2 * 188 *
907 NETUP_DMA_BLOCKS_COUNT * NETUP_DMA_PACKETS_COUNT;
908 ndev->dma_virt = dma_alloc_coherent(&pci_dev->dev,
909 ndev->dma_size, &ndev->dma_phys, GFP_KERNEL);
910 if (!ndev->dma_virt) {
911 dev_err(&pci_dev->dev, "%s(): unable to allocate DMA buffer\n",
915 netup_unidvb_dev_enable(ndev);
916 if (spi_enable && netup_spi_init(ndev)) {
917 dev_warn(&pci_dev->dev,
918 "netup_unidvb: SPI flash setup failed\n");
922 dev_err(&pci_dev->dev,
923 "netup_unidvb: card initialization was incomplete\n");
926 if (netup_i2c_register(ndev)) {
927 dev_err(&pci_dev->dev, "netup_unidvb: I2C setup failed\n");
930 /* enable I2C IRQs */
931 writew(NETUP_UNIDVB_IRQ_I2C0 | NETUP_UNIDVB_IRQ_I2C1,
932 ndev->bmmio0 + REG_IMASK_SET);
933 usleep_range(5000, 10000);
934 if (netup_unidvb_dvb_setup(ndev)) {
935 dev_err(&pci_dev->dev, "netup_unidvb: DVB setup failed\n");
938 if (netup_unidvb_ci_setup(ndev, pci_dev)) {
939 dev_err(&pci_dev->dev, "netup_unidvb: CI setup failed\n");
942 if (netup_unidvb_dma_setup(ndev)) {
943 dev_err(&pci_dev->dev, "netup_unidvb: DMA setup failed\n");
946 dev_info(&pci_dev->dev,
947 "netup_unidvb: device has been initialized\n");
950 netup_unidvb_ci_unregister(ndev, 0);
951 netup_unidvb_ci_unregister(ndev, 1);
953 netup_unidvb_dvb_fini(ndev, 0);
954 netup_unidvb_dvb_fini(ndev, 1);
956 netup_i2c_unregister(ndev);
959 netup_spi_release(ndev);
961 dma_free_coherent(&pci_dev->dev, ndev->dma_size,
962 ndev->dma_virt, ndev->dma_phys);
964 free_irq(pci_dev->irq, pci_dev);
966 iounmap(ndev->lmmio1);
968 iounmap(ndev->lmmio0);
970 release_mem_region(pci_resource_start(pci_dev, 0),
971 pci_resource_len(pci_dev, 0));
972 release_mem_region(pci_resource_start(pci_dev, 1),
973 pci_resource_len(pci_dev, 1));
975 pci_disable_device(pci_dev);
977 pci_set_drvdata(pci_dev, NULL);
978 destroy_workqueue(ndev->wq);
982 dev_err(&pci_dev->dev,
983 "%s(): failed to initialize device\n", __func__);
987 static void netup_unidvb_finidev(struct pci_dev *pci_dev)
989 struct netup_unidvb_dev *ndev = pci_get_drvdata(pci_dev);
991 dev_info(&pci_dev->dev, "%s(): trying to stop device\n", __func__);
993 netup_unidvb_dma_fini(ndev, 0);
994 netup_unidvb_dma_fini(ndev, 1);
995 netup_unidvb_ci_unregister(ndev, 0);
996 netup_unidvb_ci_unregister(ndev, 1);
997 netup_unidvb_dvb_fini(ndev, 0);
998 netup_unidvb_dvb_fini(ndev, 1);
999 netup_i2c_unregister(ndev);
1002 netup_spi_release(ndev);
1003 writew(0xffff, ndev->bmmio0 + REG_IMASK_CLEAR);
1004 dma_free_coherent(&ndev->pci_dev->dev, ndev->dma_size,
1005 ndev->dma_virt, ndev->dma_phys);
1006 free_irq(pci_dev->irq, pci_dev);
1007 iounmap(ndev->lmmio0);
1008 iounmap(ndev->lmmio1);
1009 release_mem_region(pci_resource_start(pci_dev, 0),
1010 pci_resource_len(pci_dev, 0));
1011 release_mem_region(pci_resource_start(pci_dev, 1),
1012 pci_resource_len(pci_dev, 1));
1013 pci_disable_device(pci_dev);
1014 pci_set_drvdata(pci_dev, NULL);
1015 destroy_workqueue(ndev->wq);
1017 dev_info(&pci_dev->dev,
1018 "%s(): device has been successfully stopped\n", __func__);
1022 static struct pci_device_id netup_unidvb_pci_tbl[] = {
1023 { PCI_DEVICE(0x1b55, 0x18f6) }, /* hw rev. 1.3 */
1024 { PCI_DEVICE(0x1b55, 0x18f7) }, /* hw rev. 1.4 */
1027 MODULE_DEVICE_TABLE(pci, netup_unidvb_pci_tbl);
1029 static struct pci_driver netup_unidvb_pci_driver = {
1030 .name = "netup_unidvb",
1031 .id_table = netup_unidvb_pci_tbl,
1032 .probe = netup_unidvb_initdev,
1033 .remove = netup_unidvb_finidev,
1038 static int __init netup_unidvb_init(void)
1040 return pci_register_driver(&netup_unidvb_pci_driver);
1043 static void __exit netup_unidvb_fini(void)
1045 pci_unregister_driver(&netup_unidvb_pci_driver);
1048 module_init(netup_unidvb_init);
1049 module_exit(netup_unidvb_fini);