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authorMichael Hennerich <michael.hennerich@analog.com>2010-11-24 04:33:59 -0500
committerPaul Mundt <lethal@linux-sh.org>2010-11-26 01:06:39 -0500
commitcffd9348a3ae87ac98a4b3c03a5359e28ad50b93 (patch)
tree1a9a27d248b40cf0fc6be433cc416c01c0bf9b41 /drivers/video
parentdbcc465a3c8d81da132cc1dd4e5fbf731172477f (diff)
fbdev: bfin_adv7393fb: new Blackfin ADV7393 driver
Driver for ADV7393 add-on card for multiple Blackfin boards. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/Kconfig52
-rw-r--r--drivers/video/Makefile1
-rw-r--r--drivers/video/bfin_adv7393fb.c832
-rw-r--r--drivers/video/bfin_adv7393fb.h321
4 files changed, 1206 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 04d09cac5a4d..e231041a5e33 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -657,6 +657,58 @@ config FB_BF537_LQ035
657 To compile this driver as a module, choose M here: the 657 To compile this driver as a module, choose M here: the
658 module will be called bf537-lq035. 658 module will be called bf537-lq035.
659 659
660config FB_BFIN_7393
661 tristate "Blackfin ADV7393 Video encoder"
662 depends on FB && BLACKFIN
663 select I2C
664 select FB_CFB_FILLRECT
665 select FB_CFB_COPYAREA
666 select FB_CFB_IMAGEBLIT
667 help
668 This is the framebuffer device for a ADV7393 video encoder
669 attached to a Blackfin on the PPI port.
670 If your Blackfin board has a ADV7393 select Y.
671
672 To compile this driver as a module, choose M here: the
673 module will be called bfin_adv7393fb.
674
675choice
676 prompt "Video mode support"
677 depends on FB_BFIN_7393
678 default NTSC
679
680config NTSC
681 bool 'NTSC 720x480'
682
683config PAL
684 bool 'PAL 720x576'
685
686config NTSC_640x480
687 bool 'NTSC 640x480 (Experimental)'
688
689config PAL_640x480
690 bool 'PAL 640x480 (Experimental)'
691
692config NTSC_YCBCR
693 bool 'NTSC 720x480 YCbCR input'
694
695config PAL_YCBCR
696 bool 'PAL 720x576 YCbCR input'
697
698endchoice
699
700choice
701 prompt "Size of ADV7393 frame buffer memory Single/Double Size"
702 depends on (FB_BFIN_7393)
703 default ADV7393_1XMEM
704
705config ADV7393_1XMEM
706 bool 'Single'
707
708config ADV7393_2XMEM
709 bool 'Double'
710endchoice
711
660config FB_STI 712config FB_STI
661 tristate "HP STI frame buffer device support" 713 tristate "HP STI frame buffer device support"
662 depends on FB && PARISC 714 depends on FB && PARISC
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index cf1c45d2e22d..bdf626419433 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -148,6 +148,7 @@ obj-$(CONFIG_FB_BF537_LQ035) += bf537-lq035.o
148obj-$(CONFIG_FB_BF54X_LQ043) += bf54x-lq043fb.o 148obj-$(CONFIG_FB_BF54X_LQ043) += bf54x-lq043fb.o
149obj-$(CONFIG_FB_BFIN_LQ035Q1) += bfin-lq035q1-fb.o 149obj-$(CONFIG_FB_BFIN_LQ035Q1) += bfin-lq035q1-fb.o
150obj-$(CONFIG_FB_BFIN_T350MCQB) += bfin-t350mcqb-fb.o 150obj-$(CONFIG_FB_BFIN_T350MCQB) += bfin-t350mcqb-fb.o
151obj-$(CONFIG_FB_BFIN_7393) += bfin_adv7393fb.o
151obj-$(CONFIG_FB_MX3) += mx3fb.o 152obj-$(CONFIG_FB_MX3) += mx3fb.o
152obj-$(CONFIG_FB_DA8XX) += da8xx-fb.o 153obj-$(CONFIG_FB_DA8XX) += da8xx-fb.o
153 154
diff --git a/drivers/video/bfin_adv7393fb.c b/drivers/video/bfin_adv7393fb.c
new file mode 100644
index 000000000000..8486f541156b
--- /dev/null
+++ b/drivers/video/bfin_adv7393fb.c
@@ -0,0 +1,832 @@
1/*
2 * Frame buffer driver for ADV7393/2 video encoder
3 *
4 * Copyright 2006-2009 Analog Devices Inc.
5 * Licensed under the GPL-2 or late.
6 */
7
8/*
9 * TODO: Remove Globals
10 * TODO: Code Cleanup
11 */
12
13#define pr_fmt(fmt) DRIVER_NAME ": " fmt
14
15#include <linux/module.h>
16#include <linux/kernel.h>
17#include <linux/errno.h>
18#include <linux/string.h>
19#include <linux/mm.h>
20#include <linux/tty.h>
21#include <linux/slab.h>
22#include <linux/delay.h>
23#include <linux/fb.h>
24#include <linux/ioport.h>
25#include <linux/init.h>
26#include <linux/types.h>
27#include <linux/interrupt.h>
28#include <linux/sched.h>
29#include <asm/blackfin.h>
30#include <asm/irq.h>
31#include <asm/dma.h>
32#include <linux/uaccess.h>
33#include <linux/gpio.h>
34#include <asm/portmux.h>
35
36#include <linux/dma-mapping.h>
37#include <linux/proc_fs.h>
38#include <linux/platform_device.h>
39
40#include <linux/i2c.h>
41#include <linux/i2c-dev.h>
42
43#include "bfin_adv7393fb.h"
44
45static int mode = VMODE;
46static int mem = VMEM;
47static int nocursor = 1;
48
49static const unsigned short ppi_pins[] = {
50 P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
51 P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3,
52 P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7,
53 P_PPI0_D8, P_PPI0_D9, P_PPI0_D10, P_PPI0_D11,
54 P_PPI0_D12, P_PPI0_D13, P_PPI0_D14, P_PPI0_D15,
55 0
56};
57
58/*
59 * card parameters
60 */
61
62static struct bfin_adv7393_fb_par {
63 /* structure holding blackfin / adv7393 paramters when
64 screen is blanked */
65 struct {
66 u8 Mode; /* ntsc/pal/? */
67 } vga_state;
68 atomic_t ref_count;
69} bfin_par;
70
71/* --------------------------------------------------------------------- */
72
73static struct fb_var_screeninfo bfin_adv7393_fb_defined = {
74 .xres = 720,
75 .yres = 480,
76 .xres_virtual = 720,
77 .yres_virtual = 480,
78 .bits_per_pixel = 16,
79 .activate = FB_ACTIVATE_TEST,
80 .height = -1,
81 .width = -1,
82 .left_margin = 0,
83 .right_margin = 0,
84 .upper_margin = 0,
85 .lower_margin = 0,
86 .vmode = FB_VMODE_INTERLACED,
87 .red = {11, 5, 0},
88 .green = {5, 6, 0},
89 .blue = {0, 5, 0},
90 .transp = {0, 0, 0},
91};
92
93static struct fb_fix_screeninfo bfin_adv7393_fb_fix __devinitdata = {
94 .id = "BFIN ADV7393",
95 .smem_len = 720 * 480 * 2,
96 .type = FB_TYPE_PACKED_PIXELS,
97 .visual = FB_VISUAL_TRUECOLOR,
98 .xpanstep = 0,
99 .ypanstep = 0,
100 .line_length = 720 * 2,
101 .accel = FB_ACCEL_NONE
102};
103
104static struct fb_ops bfin_adv7393_fb_ops = {
105 .owner = THIS_MODULE,
106 .fb_open = bfin_adv7393_fb_open,
107 .fb_release = bfin_adv7393_fb_release,
108 .fb_check_var = bfin_adv7393_fb_check_var,
109 .fb_pan_display = bfin_adv7393_fb_pan_display,
110 .fb_blank = bfin_adv7393_fb_blank,
111 .fb_fillrect = cfb_fillrect,
112 .fb_copyarea = cfb_copyarea,
113 .fb_imageblit = cfb_imageblit,
114 .fb_cursor = bfin_adv7393_fb_cursor,
115 .fb_setcolreg = bfin_adv7393_fb_setcolreg,
116};
117
118static int dma_desc_list(struct adv7393fb_device *fbdev, u16 arg)
119{
120 if (arg == BUILD) { /* Build */
121 fbdev->vb1 = l1_data_sram_zalloc(sizeof(struct dmasg));
122 if (fbdev->vb1 == NULL)
123 goto error;
124
125 fbdev->av1 = l1_data_sram_zalloc(sizeof(struct dmasg));
126 if (fbdev->av1 == NULL)
127 goto error;
128
129 fbdev->vb2 = l1_data_sram_zalloc(sizeof(struct dmasg));
130 if (fbdev->vb2 == NULL)
131 goto error;
132
133 fbdev->av2 = l1_data_sram_zalloc(sizeof(struct dmasg));
134 if (fbdev->av2 == NULL)
135 goto error;
136
137 /* Build linked DMA descriptor list */
138 fbdev->vb1->next_desc_addr = fbdev->av1;
139 fbdev->av1->next_desc_addr = fbdev->vb2;
140 fbdev->vb2->next_desc_addr = fbdev->av2;
141 fbdev->av2->next_desc_addr = fbdev->vb1;
142
143 /* Save list head */
144 fbdev->descriptor_list_head = fbdev->av2;
145
146 /* Vertical Blanking Field 1 */
147 fbdev->vb1->start_addr = VB_DUMMY_MEMORY_SOURCE;
148 fbdev->vb1->cfg = DMA_CFG_VAL;
149
150 fbdev->vb1->x_count =
151 fbdev->modes[mode].xres + fbdev->modes[mode].boeft_blank;
152
153 fbdev->vb1->x_modify = 0;
154 fbdev->vb1->y_count = fbdev->modes[mode].vb1_lines;
155 fbdev->vb1->y_modify = 0;
156
157 /* Active Video Field 1 */
158
159 fbdev->av1->start_addr = (unsigned long)fbdev->fb_mem;
160 fbdev->av1->cfg = DMA_CFG_VAL;
161 fbdev->av1->x_count =
162 fbdev->modes[mode].xres + fbdev->modes[mode].boeft_blank;
163 fbdev->av1->x_modify = fbdev->modes[mode].bpp / 8;
164 fbdev->av1->y_count = fbdev->modes[mode].a_lines;
165 fbdev->av1->y_modify =
166 (fbdev->modes[mode].xres - fbdev->modes[mode].boeft_blank +
167 1) * (fbdev->modes[mode].bpp / 8);
168
169 /* Vertical Blanking Field 2 */
170
171 fbdev->vb2->start_addr = VB_DUMMY_MEMORY_SOURCE;
172 fbdev->vb2->cfg = DMA_CFG_VAL;
173 fbdev->vb2->x_count =
174 fbdev->modes[mode].xres + fbdev->modes[mode].boeft_blank;
175
176 fbdev->vb2->x_modify = 0;
177 fbdev->vb2->y_count = fbdev->modes[mode].vb2_lines;
178 fbdev->vb2->y_modify = 0;
179
180 /* Active Video Field 2 */
181
182 fbdev->av2->start_addr =
183 (unsigned long)fbdev->fb_mem + fbdev->line_len;
184
185 fbdev->av2->cfg = DMA_CFG_VAL;
186
187 fbdev->av2->x_count =
188 fbdev->modes[mode].xres + fbdev->modes[mode].boeft_blank;
189
190 fbdev->av2->x_modify = (fbdev->modes[mode].bpp / 8);
191 fbdev->av2->y_count = fbdev->modes[mode].a_lines;
192
193 fbdev->av2->y_modify =
194 (fbdev->modes[mode].xres - fbdev->modes[mode].boeft_blank +
195 1) * (fbdev->modes[mode].bpp / 8);
196
197 return 1;
198 }
199
200error:
201 l1_data_sram_free(fbdev->vb1);
202 l1_data_sram_free(fbdev->av1);
203 l1_data_sram_free(fbdev->vb2);
204 l1_data_sram_free(fbdev->av2);
205
206 return 0;
207}
208
209static int bfin_config_dma(struct adv7393fb_device *fbdev)
210{
211 BUG_ON(!(fbdev->fb_mem));
212
213 set_dma_x_count(CH_PPI, fbdev->descriptor_list_head->x_count);
214 set_dma_x_modify(CH_PPI, fbdev->descriptor_list_head->x_modify);
215 set_dma_y_count(CH_PPI, fbdev->descriptor_list_head->y_count);
216 set_dma_y_modify(CH_PPI, fbdev->descriptor_list_head->y_modify);
217 set_dma_start_addr(CH_PPI, fbdev->descriptor_list_head->start_addr);
218 set_dma_next_desc_addr(CH_PPI,
219 fbdev->descriptor_list_head->next_desc_addr);
220 set_dma_config(CH_PPI, fbdev->descriptor_list_head->cfg);
221
222 return 1;
223}
224
225static void bfin_disable_dma(void)
226{
227 bfin_write_DMA0_CONFIG(bfin_read_DMA0_CONFIG() & ~DMAEN);
228}
229
230static void bfin_config_ppi(struct adv7393fb_device *fbdev)
231{
232 if (ANOMALY_05000183) {
233 bfin_write_TIMER2_CONFIG(WDTH_CAP);
234 bfin_write_TIMER_ENABLE(TIMEN2);
235 }
236
237 bfin_write_PPI_CONTROL(0x381E);
238 bfin_write_PPI_FRAME(fbdev->modes[mode].tot_lines);
239 bfin_write_PPI_COUNT(fbdev->modes[mode].xres +
240 fbdev->modes[mode].boeft_blank - 1);
241 bfin_write_PPI_DELAY(fbdev->modes[mode].aoeft_blank - 1);
242}
243
244static void bfin_enable_ppi(void)
245{
246 bfin_write_PPI_CONTROL(bfin_read_PPI_CONTROL() | PORT_EN);
247}
248
249static void bfin_disable_ppi(void)
250{
251 bfin_write_PPI_CONTROL(bfin_read_PPI_CONTROL() & ~PORT_EN);
252}
253
254static inline int adv7393_write(struct i2c_client *client, u8 reg, u8 value)
255{
256 return i2c_smbus_write_byte_data(client, reg, value);
257}
258
259static inline int adv7393_read(struct i2c_client *client, u8 reg)
260{
261 return i2c_smbus_read_byte_data(client, reg);
262}
263
264static int
265adv7393_write_block(struct i2c_client *client,
266 const u8 *data, unsigned int len)
267{
268 int ret = -1;
269 u8 reg;
270
271 while (len >= 2) {
272 reg = *data++;
273 ret = adv7393_write(client, reg, *data++);
274 if (ret < 0)
275 break;
276 len -= 2;
277 }
278
279 return ret;
280}
281
282static int adv7393_mode(struct i2c_client *client, u16 mode)
283{
284 switch (mode) {
285 case POWER_ON: /* ADV7393 Sleep mode OFF */
286 adv7393_write(client, 0x00, 0x1E);
287 break;
288 case POWER_DOWN: /* ADV7393 Sleep mode ON */
289 adv7393_write(client, 0x00, 0x1F);
290 break;
291 case BLANK_OFF: /* Pixel Data Valid */
292 adv7393_write(client, 0x82, 0xCB);
293 break;
294 case BLANK_ON: /* Pixel Data Invalid */
295 adv7393_write(client, 0x82, 0x8B);
296 break;
297 default:
298 return -EINVAL;
299 break;
300 }
301 return 0;
302}
303
304static irqreturn_t ppi_irq_error(int irq, void *dev_id)
305{
306
307 struct adv7393fb_device *fbdev = (struct adv7393fb_device *)dev_id;
308
309 u16 status = bfin_read_PPI_STATUS();
310
311 pr_debug("%s: PPI Status = 0x%X\n", __func__, status);
312
313 if (status) {
314 bfin_disable_dma(); /* TODO: Check Sequence */
315 bfin_disable_ppi();
316 bfin_clear_PPI_STATUS();
317 bfin_config_dma(fbdev);
318 bfin_enable_ppi();
319 }
320
321 return IRQ_HANDLED;
322
323}
324
325static int proc_output(char *buf)
326{
327 char *p = buf;
328
329 p += sprintf(p,
330 "Usage:\n"
331 "echo 0x[REG][Value] > adv7393\n"
332 "example: echo 0x1234 >adv7393\n"
333 "writes 0x34 into Register 0x12\n");
334
335 return p - buf;
336}
337
338static int
339adv7393_read_proc(char *page, char **start, off_t off,
340 int count, int *eof, void *data)
341{
342 int len;
343
344 len = proc_output(page);
345 if (len <= off + count)
346 *eof = 1;
347 *start = page + off;
348 len -= off;
349 if (len > count)
350 len = count;
351 if (len < 0)
352 len = 0;
353 return len;
354}
355
356static int
357adv7393_write_proc(struct file *file, const char __user * buffer,
358 unsigned long count, void *data)
359{
360 struct adv7393fb_device *fbdev = data;
361 char line[8];
362 unsigned int val;
363 int ret;
364
365 ret = copy_from_user(line, buffer, count);
366 if (ret)
367 return -EFAULT;
368
369 val = simple_strtoul(line, NULL, 0);
370 adv7393_write(fbdev->client, val >> 8, val & 0xff);
371
372 return count;
373}
374
375static int __devinit bfin_adv7393_fb_probe(struct i2c_client *client,
376 const struct i2c_device_id *id)
377{
378 int ret = 0;
379 struct proc_dir_entry *entry;
380 int num_modes = ARRAY_SIZE(known_modes);
381
382 struct adv7393fb_device *fbdev = NULL;
383
384 if (mem > 2) {
385 dev_err(&client->dev, "mem out of allowed range [1;2]\n");
386 return -EINVAL;
387 }
388
389 if (mode > num_modes) {
390 dev_err(&client->dev, "mode %d: not supported", mode);
391 return -EFAULT;
392 }
393
394 fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
395 if (!fbdev) {
396 dev_err(&client->dev, "failed to allocate device private record");
397 return -ENOMEM;
398 }
399
400 i2c_set_clientdata(client, fbdev);
401
402 fbdev->modes = known_modes;
403 fbdev->client = client;
404
405 fbdev->fb_len =
406 mem * fbdev->modes[mode].xres * fbdev->modes[mode].xres *
407 (fbdev->modes[mode].bpp / 8);
408
409 fbdev->line_len =
410 fbdev->modes[mode].xres * (fbdev->modes[mode].bpp / 8);
411
412 /* Workaround "PPI Does Not Start Properly In Specific Mode" */
413 if (ANOMALY_05000400) {
414 if (gpio_request(P_IDENT(P_PPI0_FS3), "PPI0_FS3")) {
415 dev_err(&client->dev, "PPI0_FS3 GPIO request failed\n");
416 ret = -EBUSY;
417 goto out_8;
418 }
419 gpio_direction_output(P_IDENT(P_PPI0_FS3), 0);
420 }
421
422 if (peripheral_request_list(ppi_pins, DRIVER_NAME)) {
423 dev_err(&client->dev, "requesting PPI peripheral failed\n");
424 ret = -EFAULT;
425 goto out_8;
426 }
427
428 fbdev->fb_mem =
429 dma_alloc_coherent(NULL, fbdev->fb_len, &fbdev->dma_handle,
430 GFP_KERNEL);
431
432 if (NULL == fbdev->fb_mem) {
433 dev_err(&client->dev, "couldn't allocate dma buffer (%d bytes)\n",
434 (u32) fbdev->fb_len);
435 ret = -ENOMEM;
436 goto out_7;
437 }
438
439 fbdev->info.screen_base = (void *)fbdev->fb_mem;
440 bfin_adv7393_fb_fix.smem_start = (int)fbdev->fb_mem;
441
442 bfin_adv7393_fb_fix.smem_len = fbdev->fb_len;
443 bfin_adv7393_fb_fix.line_length = fbdev->line_len;
444
445 if (mem > 1)
446 bfin_adv7393_fb_fix.ypanstep = 1;
447
448 bfin_adv7393_fb_defined.red.length = 5;
449 bfin_adv7393_fb_defined.green.length = 6;
450 bfin_adv7393_fb_defined.blue.length = 5;
451
452 bfin_adv7393_fb_defined.xres = fbdev->modes[mode].xres;
453 bfin_adv7393_fb_defined.yres = fbdev->modes[mode].yres;
454 bfin_adv7393_fb_defined.xres_virtual = fbdev->modes[mode].xres;
455 bfin_adv7393_fb_defined.yres_virtual = mem * fbdev->modes[mode].yres;
456 bfin_adv7393_fb_defined.bits_per_pixel = fbdev->modes[mode].bpp;
457
458 fbdev->info.fbops = &bfin_adv7393_fb_ops;
459 fbdev->info.var = bfin_adv7393_fb_defined;
460 fbdev->info.fix = bfin_adv7393_fb_fix;
461 fbdev->info.par = &bfin_par;
462 fbdev->info.flags = FBINFO_DEFAULT;
463
464 fbdev->info.pseudo_palette = kzalloc(sizeof(u32) * 16, GFP_KERNEL);
465 if (!fbdev->info.pseudo_palette) {
466 dev_err(&client->dev, "failed to allocate pseudo_palette\n");
467 ret = -ENOMEM;
468 goto out_6;
469 }
470
471 if (fb_alloc_cmap(&fbdev->info.cmap, BFIN_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
472 dev_err(&client->dev, "failed to allocate colormap (%d entries)\n",
473 BFIN_LCD_NBR_PALETTE_ENTRIES);
474 ret = -EFAULT;
475 goto out_5;
476 }
477
478 if (request_dma(CH_PPI, "BF5xx_PPI_DMA") < 0) {
479 dev_err(&client->dev, "unable to request PPI DMA\n");
480 ret = -EFAULT;
481 goto out_4;
482 }
483
484 if (request_irq(IRQ_PPI_ERROR, ppi_irq_error, IRQF_DISABLED,
485 "PPI ERROR", fbdev) < 0) {
486 dev_err(&client->dev, "unable to request PPI ERROR IRQ\n");
487 ret = -EFAULT;
488 goto out_3;
489 }
490
491 fbdev->open = 0;
492
493 ret = adv7393_write_block(client, fbdev->modes[mode].adv7393_i2c_initd,
494 fbdev->modes[mode].adv7393_i2c_initd_len);
495
496 if (ret) {
497 dev_err(&client->dev, "i2c attach: init error\n");
498 goto out_1;
499 }
500
501
502 if (register_framebuffer(&fbdev->info) < 0) {
503 dev_err(&client->dev, "unable to register framebuffer\n");
504 ret = -EFAULT;
505 goto out_1;
506 }
507
508 dev_info(&client->dev, "fb%d: %s frame buffer device\n",
509 fbdev->info.node, fbdev->info.fix.id);
510 dev_info(&client->dev, "fb memory address : 0x%p\n", fbdev->fb_mem);
511
512 entry = create_proc_entry("driver/adv7393", 0, NULL);
513 if (!entry) {
514 dev_err(&client->dev, "unable to create /proc entry\n");
515 ret = -EFAULT;
516 goto out_0;
517 }
518
519 entry->read_proc = adv7393_read_proc;
520 entry->write_proc = adv7393_write_proc;
521 entry->data = fbdev;
522
523 return 0;
524
525 out_0:
526 unregister_framebuffer(&fbdev->info);
527 out_1:
528 free_irq(IRQ_PPI_ERROR, fbdev);
529 out_3:
530 free_dma(CH_PPI);
531 out_4:
532 dma_free_coherent(NULL, fbdev->fb_len, fbdev->fb_mem,
533 fbdev->dma_handle);
534 out_5:
535 fb_dealloc_cmap(&fbdev->info.cmap);
536 out_6:
537 kfree(fbdev->info.pseudo_palette);
538 out_7:
539 peripheral_free_list(ppi_pins);
540 out_8:
541 kfree(fbdev);
542
543 return ret;
544}
545
546static int bfin_adv7393_fb_open(struct fb_info *info, int user)
547{
548 struct adv7393fb_device *fbdev = to_adv7393fb_device(info);
549
550 fbdev->info.screen_base = (void *)fbdev->fb_mem;
551 if (!fbdev->info.screen_base) {
552 dev_err(&fbdev->client->dev, "unable to map device\n");
553 return -ENOMEM;
554 }
555
556 fbdev->open = 1;
557 dma_desc_list(fbdev, BUILD);
558 adv7393_mode(fbdev->client, BLANK_OFF);
559 bfin_config_ppi(fbdev);
560 bfin_config_dma(fbdev);
561 bfin_enable_ppi();
562
563 return 0;
564}
565
566static int bfin_adv7393_fb_release(struct fb_info *info, int user)
567{
568 struct adv7393fb_device *fbdev = to_adv7393fb_device(info);
569
570 adv7393_mode(fbdev->client, BLANK_ON);
571 bfin_disable_dma();
572 bfin_disable_ppi();
573 dma_desc_list(fbdev, DESTRUCT);
574 fbdev->open = 0;
575 return 0;
576}
577
578static int
579bfin_adv7393_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
580{
581
582 switch (var->bits_per_pixel) {
583 case 16:/* DIRECTCOLOUR, 64k */
584 var->red.offset = info->var.red.offset;
585 var->green.offset = info->var.green.offset;
586 var->blue.offset = info->var.blue.offset;
587 var->red.length = info->var.red.length;
588 var->green.length = info->var.green.length;
589 var->blue.length = info->var.blue.length;
590 var->transp.offset = 0;
591 var->transp.length = 0;
592 var->transp.msb_right = 0;
593 var->red.msb_right = 0;
594 var->green.msb_right = 0;
595 var->blue.msb_right = 0;
596 break;
597 default:
598 pr_debug("%s: depth not supported: %u BPP\n", __func__,
599 var->bits_per_pixel);
600 return -EINVAL;
601 }
602
603 if (info->var.xres != var->xres ||
604 info->var.yres != var->yres ||
605 info->var.xres_virtual != var->xres_virtual ||
606 info->var.yres_virtual != var->yres_virtual) {
607 pr_debug("%s: Resolution not supported: X%u x Y%u\n",
608 __func__, var->xres, var->yres);
609 return -EINVAL;
610 }
611
612 /*
613 * Memory limit
614 */
615
616 if ((info->fix.line_length * var->yres_virtual) > info->fix.smem_len) {
617 pr_debug("%s: Memory Limit requested yres_virtual = %u\n",
618 __func__, var->yres_virtual);
619 return -ENOMEM;
620 }
621
622 return 0;
623}
624
625static int
626bfin_adv7393_fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
627{
628 int dy;
629 u32 dmaaddr;
630 struct adv7393fb_device *fbdev = to_adv7393fb_device(info);
631
632 if (!var || !info)
633 return -EINVAL;
634
635 if (var->xoffset - info->var.xoffset) {
636 /* No support for X panning for now! */
637 return -EINVAL;
638 }
639 dy = var->yoffset - info->var.yoffset;
640
641 if (dy) {
642 pr_debug("%s: Panning screen of %d lines\n", __func__, dy);
643
644 dmaaddr = fbdev->av1->start_addr;
645 dmaaddr += (info->fix.line_length * dy);
646 /* TODO: Wait for current frame to finished */
647
648 fbdev->av1->start_addr = (unsigned long)dmaaddr;
649 fbdev->av2->start_addr = (unsigned long)dmaaddr + fbdev->line_len;
650 }
651
652 return 0;
653
654}
655
656/* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
657static int bfin_adv7393_fb_blank(int blank, struct fb_info *info)
658{
659 struct adv7393fb_device *fbdev = to_adv7393fb_device(info);
660
661 switch (blank) {
662
663 case VESA_NO_BLANKING:
664 /* Turn on panel */
665 adv7393_mode(fbdev->client, BLANK_OFF);
666 break;
667
668 case VESA_VSYNC_SUSPEND:
669 case VESA_HSYNC_SUSPEND:
670 case VESA_POWERDOWN:
671 /* Turn off panel */
672 adv7393_mode(fbdev->client, BLANK_ON);
673 break;
674
675 default:
676 return -EINVAL;
677 break;
678 }
679 return 0;
680}
681
682int bfin_adv7393_fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
683{
684 if (nocursor)
685 return 0;
686 else
687 return -EINVAL; /* just to force soft_cursor() call */
688}
689
690static int bfin_adv7393_fb_setcolreg(u_int regno, u_int red, u_int green,
691 u_int blue, u_int transp,
692 struct fb_info *info)
693{
694 if (regno >= BFIN_LCD_NBR_PALETTE_ENTRIES)
695 return -EINVAL;
696
697 if (info->var.grayscale)
698 /* grayscale = 0.30*R + 0.59*G + 0.11*B */
699 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
700
701 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
702 u32 value;
703 /* Place color in the pseudopalette */
704 if (regno > 16)
705 return -EINVAL;
706
707 red >>= (16 - info->var.red.length);
708 green >>= (16 - info->var.green.length);
709 blue >>= (16 - info->var.blue.length);
710
711 value = (red << info->var.red.offset) |
712 (green << info->var.green.offset)|
713 (blue << info->var.blue.offset);
714 value &= 0xFFFF;
715
716 ((u32 *) (info->pseudo_palette))[regno] = value;
717 }
718
719 return 0;
720}
721
722static int __devexit bfin_adv7393_fb_remove(struct i2c_client *client)
723{
724 struct adv7393fb_device *fbdev = i2c_get_clientdata(client);
725
726 adv7393_mode(client, POWER_DOWN);
727
728 if (fbdev->fb_mem)
729 dma_free_coherent(NULL, fbdev->fb_len, fbdev->fb_mem, fbdev->dma_handle);
730 free_dma(CH_PPI);
731 free_irq(IRQ_PPI_ERROR, fbdev);
732 unregister_framebuffer(&fbdev->info);
733 remove_proc_entry("driver/adv7393", NULL);
734 fb_dealloc_cmap(&fbdev->info.cmap);
735 kfree(fbdev->info.pseudo_palette);
736
737 if (ANOMALY_05000400)
738 gpio_free(P_IDENT(P_PPI0_FS3)); /* FS3 */
739 peripheral_free_list(ppi_pins);
740 kfree(fbdev);
741
742 return 0;
743}
744
745#ifdef CONFIG_PM
746static int bfin_adv7393_fb_suspend(struct device *dev)
747{
748 struct adv7393fb_device *fbdev = dev_get_drvdata(dev);
749
750 if (fbdev->open) {
751 bfin_disable_dma();
752 bfin_disable_ppi();
753 dma_desc_list(fbdev, DESTRUCT);
754 }
755 adv7393_mode(fbdev->client, POWER_DOWN);
756
757 return 0;
758}
759
760static int bfin_adv7393_fb_resume(struct device *dev)
761{
762 struct adv7393fb_device *fbdev = dev_get_drvdata(dev);
763
764 adv7393_mode(fbdev->client, POWER_ON);
765
766 if (fbdev->open) {
767 dma_desc_list(fbdev, BUILD);
768 bfin_config_ppi(fbdev);
769 bfin_config_dma(fbdev);
770 bfin_enable_ppi();
771 }
772
773 return 0;
774}
775
776static const struct dev_pm_ops bfin_adv7393_dev_pm_ops = {
777 .suspend = bfin_adv7393_fb_suspend,
778 .resume = bfin_adv7393_fb_resume,
779};
780#endif
781
782static const struct i2c_device_id bfin_adv7393_id[] = {
783 {DRIVER_NAME, 0},
784 {}
785};
786
787MODULE_DEVICE_TABLE(i2c, bfin_adv7393_id);
788
789static struct i2c_driver bfin_adv7393_fb_driver = {
790 .driver = {
791 .name = DRIVER_NAME,
792#ifdef CONFIG_PM
793 .pm = &bfin_adv7393_dev_pm_ops,
794#endif
795 },
796 .probe = bfin_adv7393_fb_probe,
797 .remove = __devexit_p(bfin_adv7393_fb_remove),
798 .id_table = bfin_adv7393_id,
799};
800
801static int __init bfin_adv7393_fb_driver_init(void)
802{
803#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
804 request_module("i2c-bfin-twi");
805#else
806 request_module("i2c-gpio");
807#endif
808
809 return i2c_add_driver(&bfin_adv7393_fb_driver);
810}
811module_init(bfin_adv7393_fb_driver_init);
812
813static void __exit bfin_adv7393_fb_driver_cleanup(void)
814{
815 i2c_del_driver(&bfin_adv7393_fb_driver);
816}
817module_exit(bfin_adv7393_fb_driver_cleanup);
818
819MODULE_LICENSE("GPL");
820MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
821MODULE_DESCRIPTION("Frame buffer driver for ADV7393/2 Video Encoder");
822
823module_param(mode, int, 0);
824MODULE_PARM_DESC(mode,
825 "Video Mode (0=NTSC,1=PAL,2=NTSC 640x480,3=PAL 640x480,4=NTSC YCbCr input,5=PAL YCbCr input)");
826
827module_param(mem, int, 0);
828MODULE_PARM_DESC(mem,
829 "Size of frame buffer memory 1=Single 2=Double Size (allows y-panning / frame stacking)");
830
831module_param(nocursor, int, 0644);
832MODULE_PARM_DESC(nocursor, "cursor enable/disable");
diff --git a/drivers/video/bfin_adv7393fb.h b/drivers/video/bfin_adv7393fb.h
new file mode 100644
index 000000000000..8c7f9e4fc6eb
--- /dev/null
+++ b/drivers/video/bfin_adv7393fb.h
@@ -0,0 +1,321 @@
1/*
2 * Frame buffer driver for ADV7393/2 video encoder
3 *
4 * Copyright 2006-2009 Analog Devices Inc.
5 * Licensed under the GPL-2 or late.
6 */
7
8#ifndef __BFIN_ADV7393FB_H__
9#define __BFIN_ADV7393FB_H__
10
11#define BFIN_LCD_NBR_PALETTE_ENTRIES 256
12
13#ifdef CONFIG_NTSC
14# define VMODE 0
15#endif
16#ifdef CONFIG_PAL
17# define VMODE 1
18#endif
19#ifdef CONFIG_NTSC_640x480
20# define VMODE 2
21#endif
22#ifdef CONFIG_PAL_640x480
23# define VMODE 3
24#endif
25#ifdef CONFIG_NTSC_YCBCR
26# define VMODE 4
27#endif
28#ifdef CONFIG_PAL_YCBCR
29# define VMODE 5
30#endif
31
32#ifndef VMODE
33# define VMODE 1
34#endif
35
36#ifdef CONFIG_ADV7393_2XMEM
37# define VMEM 2
38#else
39# define VMEM 1
40#endif
41
42#if defined(CONFIG_BF537) || defined(CONFIG_BF536) || defined(CONFIG_BF534)
43# define DMA_CFG_VAL 0x7935 /* Set Sync Bit */
44# define VB_DUMMY_MEMORY_SOURCE L1_DATA_B_START
45#else
46# define DMA_CFG_VAL 0x7915
47# define VB_DUMMY_MEMORY_SOURCE BOOT_ROM_START
48#endif
49
50enum {
51 DESTRUCT,
52 BUILD,
53};
54
55enum {
56 POWER_ON,
57 POWER_DOWN,
58 BLANK_ON,
59 BLANK_OFF,
60};
61
62#define DRIVER_NAME "bfin-adv7393"
63
64struct adv7393fb_modes {
65 const s8 name[25]; /* Full name */
66 u16 xres; /* Active Horizonzal Pixels */
67 u16 yres; /* Active Vertical Pixels */
68 u16 bpp;
69 u16 vmode;
70 u16 a_lines; /* Active Lines per Field */
71 u16 vb1_lines; /* Vertical Blanking Field 1 Lines */
72 u16 vb2_lines; /* Vertical Blanking Field 2 Lines */
73 u16 tot_lines; /* Total Lines per Frame */
74 u16 boeft_blank; /* Before Odd/Even Field Transition No. of Blank Pixels */
75 u16 aoeft_blank; /* After Odd/Even Field Transition No. of Blank Pixels */
76 const s8 *adv7393_i2c_initd;
77 u16 adv7393_i2c_initd_len;
78};
79
80static const u8 init_NTSC_TESTPATTERN[] = {
81 0x00, 0x1E, /* Power up all DACs and PLL */
82 0x01, 0x00, /* SD-Only Mode */
83 0x80, 0x10, /* SSAF Luma Filter Enabled, NTSC Mode */
84 0x82, 0xCB, /* Step control on, pixel data valid, pedestal on, PrPb SSAF on, CVBS/YC output */
85 0x84, 0x40, /* SD Color Bar Test Pattern Enabled, DAC 2 = Luma, DAC 3 = Chroma */
86};
87
88static const u8 init_NTSC[] = {
89 0x00, 0x1E, /* Power up all DACs and PLL */
90 0xC3, 0x26, /* Program RGB->YCrCb Color Space convertion matrix */
91 0xC5, 0x12, /* Program RGB->YCrCb Color Space convertion matrix */
92 0xC2, 0x4A, /* Program RGB->YCrCb Color Space convertion matrix */
93 0xC6, 0x5E, /* Program RGB->YCrCb Color Space convertion matrix */
94 0xBD, 0x19, /* Program RGB->YCrCb Color Space convertion matrix */
95 0xBF, 0x42, /* Program RGB->YCrCb Color Space convertion matrix */
96 0x8C, 0x1F, /* NTSC Subcarrier Frequency */
97 0x8D, 0x7C, /* NTSC Subcarrier Frequency */
98 0x8E, 0xF0, /* NTSC Subcarrier Frequency */
99 0x8F, 0x21, /* NTSC Subcarrier Frequency */
100 0x01, 0x00, /* SD-Only Mode */
101 0x80, 0x30, /* SSAF Luma Filter Enabled, NTSC Mode */
102 0x82, 0x8B, /* Step control on, pixel data invalid, pedestal on, PrPb SSAF on, CVBS/YC output */
103 0x87, 0x80, /* SD Color Bar Test Pattern Enabled, DAC 2 = Luma, DAC 3 = Chroma */
104 0x86, 0x82,
105 0x8B, 0x11,
106 0x88, 0x20,
107 0x8A, 0x0d,
108};
109
110static const u8 init_PAL[] = {
111 0x00, 0x1E, /* Power up all DACs and PLL */
112 0xC3, 0x26, /* Program RGB->YCrCb Color Space convertion matrix */
113 0xC5, 0x12, /* Program RGB->YCrCb Color Space convertion matrix */
114 0xC2, 0x4A, /* Program RGB->YCrCb Color Space convertion matrix */
115 0xC6, 0x5E, /* Program RGB->YCrCb Color Space convertion matrix */
116 0xBD, 0x19, /* Program RGB->YCrCb Color Space convertion matrix */
117 0xBF, 0x42, /* Program RGB->YCrCb Color Space convertion matrix */
118 0x8C, 0xCB, /* PAL Subcarrier Frequency */
119 0x8D, 0x8A, /* PAL Subcarrier Frequency */
120 0x8E, 0x09, /* PAL Subcarrier Frequency */
121 0x8F, 0x2A, /* PAL Subcarrier Frequency */
122 0x01, 0x00, /* SD-Only Mode */
123 0x80, 0x11, /* SSAF Luma Filter Enabled, PAL Mode */
124 0x82, 0x8B, /* Step control on, pixel data invalid, pedestal on, PrPb SSAF on, CVBS/YC output */
125 0x87, 0x80, /* SD Color Bar Test Pattern Enabled, DAC 2 = Luma, DAC 3 = Chroma */
126 0x86, 0x82,
127 0x8B, 0x11,
128 0x88, 0x20,
129 0x8A, 0x0d,
130};
131
132static const u8 init_NTSC_YCbCr[] = {
133 0x00, 0x1E, /* Power up all DACs and PLL */
134 0x8C, 0x1F, /* NTSC Subcarrier Frequency */
135 0x8D, 0x7C, /* NTSC Subcarrier Frequency */
136 0x8E, 0xF0, /* NTSC Subcarrier Frequency */
137 0x8F, 0x21, /* NTSC Subcarrier Frequency */
138 0x01, 0x00, /* SD-Only Mode */
139 0x80, 0x30, /* SSAF Luma Filter Enabled, NTSC Mode */
140 0x82, 0x8B, /* Step control on, pixel data invalid, pedestal on, PrPb SSAF on, CVBS/YC output */
141 0x87, 0x00, /* DAC 2 = Luma, DAC 3 = Chroma */
142 0x86, 0x82,
143 0x8B, 0x11,
144 0x88, 0x08,
145 0x8A, 0x0d,
146};
147
148static const u8 init_PAL_YCbCr[] = {
149 0x00, 0x1E, /* Power up all DACs and PLL */
150 0x8C, 0xCB, /* PAL Subcarrier Frequency */
151 0x8D, 0x8A, /* PAL Subcarrier Frequency */
152 0x8E, 0x09, /* PAL Subcarrier Frequency */
153 0x8F, 0x2A, /* PAL Subcarrier Frequency */
154 0x01, 0x00, /* SD-Only Mode */
155 0x80, 0x11, /* SSAF Luma Filter Enabled, PAL Mode */
156 0x82, 0x8B, /* Step control on, pixel data invalid, pedestal on, PrPb SSAF on, CVBS/YC output */
157 0x87, 0x00, /* DAC 2 = Luma, DAC 3 = Chroma */
158 0x86, 0x82,
159 0x8B, 0x11,
160 0x88, 0x08,
161 0x8A, 0x0d,
162};
163
164static struct adv7393fb_modes known_modes[] = {
165 /* NTSC 720x480 CRT */
166 {
167 .name = "NTSC 720x480",
168 .xres = 720,
169 .yres = 480,
170 .bpp = 16,
171 .vmode = FB_VMODE_INTERLACED,
172 .a_lines = 240,
173 .vb1_lines = 22,
174 .vb2_lines = 23,
175 .tot_lines = 525,
176 .boeft_blank = 16,
177 .aoeft_blank = 122,
178 .adv7393_i2c_initd = init_NTSC,
179 .adv7393_i2c_initd_len = sizeof(init_NTSC)
180 },
181 /* PAL 720x480 CRT */
182 {
183 .name = "PAL 720x576",
184 .xres = 720,
185 .yres = 576,
186 .bpp = 16,
187 .vmode = FB_VMODE_INTERLACED,
188 .a_lines = 288,
189 .vb1_lines = 24,
190 .vb2_lines = 25,
191 .tot_lines = 625,
192 .boeft_blank = 12,
193 .aoeft_blank = 132,
194 .adv7393_i2c_initd = init_PAL,
195 .adv7393_i2c_initd_len = sizeof(init_PAL)
196 },
197 /* NTSC 640x480 CRT Experimental */
198 {
199 .name = "NTSC 640x480",
200 .xres = 640,
201 .yres = 480,
202 .bpp = 16,
203 .vmode = FB_VMODE_INTERLACED,
204 .a_lines = 240,
205 .vb1_lines = 22,
206 .vb2_lines = 23,
207 .tot_lines = 525,
208 .boeft_blank = 16 + 40,
209 .aoeft_blank = 122 + 40,
210 .adv7393_i2c_initd = init_NTSC,
211 .adv7393_i2c_initd_len = sizeof(init_NTSC)
212 },
213 /* PAL 640x480 CRT Experimental */
214 {
215 .name = "PAL 640x480",
216 .xres = 640,
217 .yres = 480,
218 .bpp = 16,
219 .vmode = FB_VMODE_INTERLACED,
220 .a_lines = 288 - 20,
221 .vb1_lines = 24 + 20,
222 .vb2_lines = 25 + 20,
223 .tot_lines = 625,
224 .boeft_blank = 12 + 40,
225 .aoeft_blank = 132 + 40,
226 .adv7393_i2c_initd = init_PAL,
227 .adv7393_i2c_initd_len = sizeof(init_PAL)
228 },
229 /* NTSC 720x480 YCbCR */
230 {
231 .name = "NTSC 720x480 YCbCR",
232 .xres = 720,
233 .yres = 480,
234 .bpp = 16,
235 .vmode = FB_VMODE_INTERLACED,
236 .a_lines = 240,
237 .vb1_lines = 22,
238 .vb2_lines = 23,
239 .tot_lines = 525,
240 .boeft_blank = 16,
241 .aoeft_blank = 122,
242 .adv7393_i2c_initd = init_NTSC_YCbCr,
243 .adv7393_i2c_initd_len = sizeof(init_NTSC_YCbCr)
244 },
245 /* PAL 720x480 CRT */
246 {
247 .name = "PAL 720x576 YCbCR",
248 .xres = 720,
249 .yres = 576,
250 .bpp = 16,
251 .vmode = FB_VMODE_INTERLACED,
252 .a_lines = 288,
253 .vb1_lines = 24,
254 .vb2_lines = 25,
255 .tot_lines = 625,
256 .boeft_blank = 12,
257 .aoeft_blank = 132,
258 .adv7393_i2c_initd = init_PAL_YCbCr,
259 .adv7393_i2c_initd_len = sizeof(init_PAL_YCbCr)
260 }
261};
262
263struct adv7393fb_regs {
264
265};
266
267struct adv7393fb_device {
268 struct fb_info info; /* FB driver info record */
269
270 struct i2c_client *client;
271
272 struct dmasg *descriptor_list_head;
273 struct dmasg *vb1;
274 struct dmasg *av1;
275 struct dmasg *vb2;
276 struct dmasg *av2;
277
278 dma_addr_t dma_handle;
279
280 struct fb_info bfin_adv7393_fb;
281
282 struct adv7393fb_modes *modes;
283
284 struct adv7393fb_regs *regs; /* Registers memory map */
285 size_t regs_len;
286 size_t fb_len;
287 size_t line_len;
288 u16 open;
289 u16 *fb_mem; /* RGB Buffer */
290
291};
292
293#define to_adv7393fb_device(_info) \
294 (_info ? container_of(_info, struct adv7393fb_device, info) : NULL);
295
296static int bfin_adv7393_fb_open(struct fb_info *info, int user);
297static int bfin_adv7393_fb_release(struct fb_info *info, int user);
298static int bfin_adv7393_fb_check_var(struct fb_var_screeninfo *var,
299 struct fb_info *info);
300
301static int bfin_adv7393_fb_pan_display(struct fb_var_screeninfo *var,
302 struct fb_info *info);
303
304static int bfin_adv7393_fb_blank(int blank, struct fb_info *info);
305
306static void bfin_config_ppi(struct adv7393fb_device *fbdev);
307static int bfin_config_dma(struct adv7393fb_device *fbdev);
308static void bfin_disable_dma(void);
309static void bfin_enable_ppi(void);
310static void bfin_disable_ppi(void);
311
312static inline int adv7393_write(struct i2c_client *client, u8 reg, u8 value);
313static inline int adv7393_read(struct i2c_client *client, u8 reg);
314static int adv7393_write_block(struct i2c_client *client, const u8 *data,
315 unsigned int len);
316
317int bfin_adv7393_fb_cursor(struct fb_info *info, struct fb_cursor *cursor);
318static int bfin_adv7393_fb_setcolreg(u_int, u_int, u_int, u_int,
319 u_int, struct fb_info *info);
320
321#endif
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-25 18:59:27 -0500