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[media] cx25821: make cx25821_sram_channels const

Browse Source 
And get rid of the channel0-11 external pointers and two more unused fields
in cx25821.h.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2013-04-13 06:28:54 -03:00 committed by Mauro Carvalho Chehab
parent 3dd473ca58
commit bfef0d35e5
8 changed files with 57 additions and 92 deletions
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2
drivers/media/pci/cx25821/cx25821-alsa.c
View File

@ -151,7 +151,7 @@ static int _cx25821_start_audio_dma(struct cx25821_audio_dev *chip)
{
struct cx25821_audio_buffer *buf = chip->buf;
struct cx25821_dev *dev = chip->dev;
struct sram_channel *audio_ch =
const struct sram_channel *audio_ch =
&cx25821_sram_channels[AUDIO_SRAM_CHANNEL];
u32 tmp = 0;

22
drivers/media/pci/cx25821/cx25821-audio-upstream.c
View File

@ -45,7 +45,7 @@ static int _intr_msk = FLD_AUD_SRC_RISCI1 | FLD_AUD_SRC_OF |
FLD_AUD_SRC_SYNC | FLD_AUD_SRC_OPC_ERR;
static int cx25821_sram_channel_setup_upstream_audio(struct cx25821_dev *dev,
struct sram_channel *ch,
const struct sram_channel *ch,
unsigned int bpl, u32 risc)
{
unsigned int i, lines;
@ -106,7 +106,7 @@ static __le32 *cx25821_risc_field_upstream_audio(struct cx25821_dev *dev,
int fifo_enable)
{
unsigned int line;
struct sram_channel *sram_ch =
const struct sram_channel *sram_ch =
dev->channels[dev->_audio_upstream_channel].sram_channels;
int offset = 0;
@ -215,7 +215,7 @@ static void cx25821_free_memory_audio(struct cx25821_dev *dev)
void cx25821_stop_upstream_audio(struct cx25821_dev *dev)
{
struct sram_channel *sram_ch =
const struct sram_channel *sram_ch =
dev->channels[AUDIO_UPSTREAM_SRAM_CHANNEL_B].sram_channels;
u32 tmp = 0;
@ -257,7 +257,7 @@ void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev)
}
static int cx25821_get_audio_data(struct cx25821_dev *dev,
struct sram_channel *sram_ch)
const struct sram_channel *sram_ch)
{
struct file *myfile;
int frame_index_temp = dev->_audioframe_index;
@ -352,7 +352,7 @@ static void cx25821_audioups_handler(struct work_struct *work)
}
static int cx25821_openfile_audio(struct cx25821_dev *dev,
struct sram_channel *sram_ch)
const struct sram_channel *sram_ch)
{
struct file *myfile;
int i = 0, j = 0;
@ -433,7 +433,7 @@ static int cx25821_openfile_audio(struct cx25821_dev *dev,
}
static int cx25821_audio_upstream_buffer_prepare(struct cx25821_dev *dev,
struct sram_channel *sram_ch,
const struct sram_channel *sram_ch,
int bpl)
{
int ret = 0;
@ -495,7 +495,7 @@ static int cx25821_audio_upstream_irq(struct cx25821_dev *dev, int chan_num,
{
int i = 0;
u32 int_msk_tmp;
struct sram_channel *channel = dev->channels[chan_num].sram_channels;
const struct sram_channel *channel = dev->channels[chan_num].sram_channels;
dma_addr_t risc_phys_jump_addr;
__le32 *rp;
@ -587,7 +587,7 @@ static irqreturn_t cx25821_upstream_irq_audio(int irq, void *dev_id)
struct cx25821_dev *dev = dev_id;
u32 audio_status;
int handled = 0;
struct sram_channel *sram_ch;
const struct sram_channel *sram_ch;
if (!dev)
return -1;
@ -611,7 +611,7 @@ static irqreturn_t cx25821_upstream_irq_audio(int irq, void *dev_id)
}
static void cx25821_wait_fifo_enable(struct cx25821_dev *dev,
struct sram_channel *sram_ch)
const struct sram_channel *sram_ch)
{
int count = 0;
u32 tmp;
@ -635,7 +635,7 @@ static void cx25821_wait_fifo_enable(struct cx25821_dev *dev,
}
static int cx25821_start_audio_dma_upstream(struct cx25821_dev *dev,
struct sram_channel *sram_ch)
const struct sram_channel *sram_ch)
{
u32 tmp = 0;
int err = 0;
@ -699,7 +699,7 @@ fail_irq:
int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
{
struct sram_channel *sram_ch;
const struct sram_channel *sram_ch;
int err = 0;
if (dev->_audio_is_running) {

28
drivers/media/pci/cx25821/cx25821-core.c
View File

@ -48,7 +48,7 @@ EXPORT_SYMBOL(cx25821_devlist_mutex);
LIST_HEAD(cx25821_devlist);
EXPORT_SYMBOL(cx25821_devlist);
struct sram_channel cx25821_sram_channels[] = {
const struct sram_channel cx25821_sram_channels[] = {
[SRAM_CH00] = {
.i = SRAM_CH00,
.name = "VID A",
@ -317,20 +317,6 @@ struct sram_channel cx25821_sram_channels[] = {
};
EXPORT_SYMBOL(cx25821_sram_channels);
struct sram_channel *channel0 = &cx25821_sram_channels[SRAM_CH00];
struct sram_channel *channel1 = &cx25821_sram_channels[SRAM_CH01];
struct sram_channel *channel2 = &cx25821_sram_channels[SRAM_CH02];
struct sram_channel *channel3 = &cx25821_sram_channels[SRAM_CH03];
struct sram_channel *channel4 = &cx25821_sram_channels[SRAM_CH04];
struct sram_channel *channel5 = &cx25821_sram_channels[SRAM_CH05];
struct sram_channel *channel6 = &cx25821_sram_channels[SRAM_CH06];
struct sram_channel *channel7 = &cx25821_sram_channels[SRAM_CH07];
struct sram_channel *channel9 = &cx25821_sram_channels[SRAM_CH09];
struct sram_channel *channel10 = &cx25821_sram_channels[SRAM_CH10];
struct sram_channel *channel11 = &cx25821_sram_channels[SRAM_CH11];
struct cx25821_dmaqueue mpegq;
static int cx25821_risc_decode(u32 risc)
{
static const char * const instr[16] = {
@ -457,7 +443,7 @@ static void cx25821_registers_init(struct cx25821_dev *dev)
}
int cx25821_sram_channel_setup(struct cx25821_dev *dev,
struct sram_channel *ch,
const struct sram_channel *ch,
unsigned int bpl, u32 risc)
{
unsigned int i, lines;
@ -523,10 +509,9 @@ int cx25821_sram_channel_setup(struct cx25821_dev *dev,
return 0;
}
EXPORT_SYMBOL(cx25821_sram_channel_setup);
int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
struct sram_channel *ch,
const struct sram_channel *ch,
unsigned int bpl, u32 risc)
{
unsigned int i, lines;
@ -592,7 +577,7 @@ int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
}
EXPORT_SYMBOL(cx25821_sram_channel_setup_audio);
void cx25821_sram_channel_dump(struct cx25821_dev *dev, struct sram_channel *ch)
void cx25821_sram_channel_dump(struct cx25821_dev *dev, const struct sram_channel *ch)
{
static char *name[] = {
"init risc lo",
@ -652,10 +637,9 @@ void cx25821_sram_channel_dump(struct cx25821_dev *dev, struct sram_channel *ch)
pr_warn(" : cnt2_reg: 0x%08x\n",
cx_read(ch->cnt2_reg));
}
EXPORT_SYMBOL(cx25821_sram_channel_dump);
void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev,
struct sram_channel *ch)
const struct sram_channel *ch)
{
static const char * const name[] = {
"init risc lo",
@ -803,7 +787,7 @@ void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel_select,
}
static void cx25821_set_vip_mode(struct cx25821_dev *dev,
struct sram_channel *ch)
const struct sram_channel *ch)
{
cx_write(ch->pix_frmt, PIXEL_FRMT_422);
cx_write(ch->vip_ctl, PIXEL_ENGINE_VIP1);

20
drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c
View File

@ -83,7 +83,7 @@ static __le32 *cx25821_risc_field_upstream_ch2(struct cx25821_dev *dev,
int fifo_enable, int field_type)
{
unsigned int line, i;
struct sram_channel *sram_ch =
const struct sram_channel *sram_ch =
dev->channels[dev->_channel2_upstream_select].sram_channels;
int dist_betwn_starts = bpl * 2;
@ -201,7 +201,7 @@ static int cx25821_risc_buffer_upstream_ch2(struct cx25821_dev *dev,
void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev)
{
struct sram_channel *sram_ch =
const struct sram_channel *sram_ch =
dev->channels[VID_UPSTREAM_SRAM_CHANNEL_J].sram_channels;
u32 tmp = 0;
@ -257,7 +257,7 @@ void cx25821_free_mem_upstream_ch2(struct cx25821_dev *dev)
}
static int cx25821_get_frame_ch2(struct cx25821_dev *dev,
struct sram_channel *sram_ch)
const struct sram_channel *sram_ch)
{
struct file *myfile;
int frame_index_temp = dev->_frame_index_ch2;
@ -363,7 +363,7 @@ static void cx25821_vidups_handler_ch2(struct work_struct *work)
}
static int cx25821_openfile_ch2(struct cx25821_dev *dev,
struct sram_channel *sram_ch)
const struct sram_channel *sram_ch)
{
struct file *myfile;
int i = 0, j = 0;
@ -445,7 +445,7 @@ static int cx25821_openfile_ch2(struct cx25821_dev *dev,
}
static int cx25821_upstream_buffer_prepare_ch2(struct cx25821_dev *dev,
struct sram_channel *sram_ch,
const struct sram_channel *sram_ch,
int bpl)
{
int ret = 0;
@ -515,7 +515,7 @@ static int cx25821_video_upstream_irq_ch2(struct cx25821_dev *dev,
u32 status)
{
u32 int_msk_tmp;
struct sram_channel *channel = dev->channels[chan_num].sram_channels;
const struct sram_channel *channel = dev->channels[chan_num].sram_channels;
int singlefield_lines = NTSC_FIELD_HEIGHT;
int line_size_in_bytes = Y422_LINE_SZ;
int odd_risc_prog_size = 0;
@ -594,7 +594,7 @@ static irqreturn_t cx25821_upstream_irq_ch2(int irq, void *dev_id)
u32 vid_status;
int handled = 0;
int channel_num = 0;
struct sram_channel *sram_ch;
const struct sram_channel *sram_ch;
if (!dev)
return -1;
@ -618,7 +618,7 @@ static irqreturn_t cx25821_upstream_irq_ch2(int irq, void *dev_id)
}
static void cx25821_set_pixelengine_ch2(struct cx25821_dev *dev,
struct sram_channel *ch, int pix_format)
const struct sram_channel *ch, int pix_format)
{
int width = WIDTH_D1;
int height = dev->_lines_count_ch2;
@ -652,7 +652,7 @@ static void cx25821_set_pixelengine_ch2(struct cx25821_dev *dev,
}
static int cx25821_start_video_dma_upstream_ch2(struct cx25821_dev *dev,
struct sram_channel *sram_ch)
const struct sram_channel *sram_ch)
{
u32 tmp = 0;
int err = 0;
@ -706,7 +706,7 @@ fail_irq:
int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select,
int pixel_format)
{
struct sram_channel *sram_ch;
const struct sram_channel *sram_ch;
u32 tmp;
int err = 0;
int data_frame_size = 0;

22
drivers/media/pci/cx25821/cx25821-video-upstream.c
View File

@ -44,7 +44,7 @@ static int _intr_msk = FLD_VID_SRC_RISC1 | FLD_VID_SRC_UF | FLD_VID_SRC_SYNC |
FLD_VID_SRC_OPC_ERR;
int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
struct sram_channel *ch,
const struct sram_channel *ch,
unsigned int bpl, u32 risc)
{
unsigned int i, lines;
@ -135,7 +135,7 @@ static __le32 *cx25821_risc_field_upstream(struct cx25821_dev *dev, __le32 * rp,
int fifo_enable, int field_type)
{
unsigned int line, i;
struct sram_channel *sram_ch =
const struct sram_channel *sram_ch =
dev->channels[dev->_channel_upstream_select].sram_channels;
int dist_betwn_starts = bpl * 2;
@ -247,7 +247,7 @@ static int cx25821_risc_buffer_upstream(struct cx25821_dev *dev,
void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev)
{
struct sram_channel *sram_ch =
const struct sram_channel *sram_ch =
dev->channels[VID_UPSTREAM_SRAM_CHANNEL_I].sram_channels;
u32 tmp = 0;
@ -301,7 +301,7 @@ void cx25821_free_mem_upstream_ch1(struct cx25821_dev *dev)
}
static int cx25821_get_frame(struct cx25821_dev *dev,
struct sram_channel *sram_ch)
const struct sram_channel *sram_ch)
{
struct file *myfile;
int frame_index_temp = dev->_frame_index;
@ -407,7 +407,7 @@ static void cx25821_vidups_handler(struct work_struct *work)
}
static int cx25821_openfile(struct cx25821_dev *dev,
struct sram_channel *sram_ch)
const struct sram_channel *sram_ch)
{
struct file *myfile;
int i = 0, j = 0;
@ -489,7 +489,7 @@ static int cx25821_openfile(struct cx25821_dev *dev,
}
static int cx25821_upstream_buffer_prepare(struct cx25821_dev *dev,
struct sram_channel *sram_ch,
const struct sram_channel *sram_ch,
int bpl)
{
int ret = 0;
@ -555,7 +555,7 @@ static int cx25821_video_upstream_irq(struct cx25821_dev *dev, int chan_num,
u32 status)
{
u32 int_msk_tmp;
struct sram_channel *channel = dev->channels[chan_num].sram_channels;
const struct sram_channel *channel = dev->channels[chan_num].sram_channels;
int singlefield_lines = NTSC_FIELD_HEIGHT;
int line_size_in_bytes = Y422_LINE_SZ;
int odd_risc_prog_size = 0;
@ -643,7 +643,7 @@ static irqreturn_t cx25821_upstream_irq(int irq, void *dev_id)
u32 vid_status;
int handled = 0;
int channel_num = 0;
struct sram_channel *sram_ch;
const struct sram_channel *sram_ch;
if (!dev)
return -1;
@ -668,7 +668,7 @@ static irqreturn_t cx25821_upstream_irq(int irq, void *dev_id)
}
static void cx25821_set_pixelengine(struct cx25821_dev *dev,
struct sram_channel *ch,
const struct sram_channel *ch,
int pix_format)
{
int width = WIDTH_D1;
@ -701,7 +701,7 @@ static void cx25821_set_pixelengine(struct cx25821_dev *dev,
}
static int cx25821_start_video_dma_upstream(struct cx25821_dev *dev,
struct sram_channel *sram_ch)
const struct sram_channel *sram_ch)
{
u32 tmp = 0;
int err = 0;
@ -755,7 +755,7 @@ fail_irq:
int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select,
int pixel_format)
{
struct sram_channel *sram_ch;
const struct sram_channel *sram_ch;
u32 tmp;
int err = 0;
int data_frame_size = 0;

14
drivers/media/pci/cx25821/cx25821-video.c
View File

@ -258,7 +258,7 @@ int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input)
int cx25821_start_video_dma(struct cx25821_dev *dev,
struct cx25821_dmaqueue *q,
struct cx25821_buffer *buf,
struct sram_channel *channel)
const struct sram_channel *channel)
{
int tmp = 0;
@ -285,7 +285,7 @@ int cx25821_start_video_dma(struct cx25821_dev *dev,
static int cx25821_restart_video_queue(struct cx25821_dev *dev,
struct cx25821_dmaqueue *q,
struct sram_channel *channel)
const struct sram_channel *channel)
{
struct cx25821_buffer *buf, *prev;
struct list_head *item;
@ -338,7 +338,7 @@ static void cx25821_vid_timeout(unsigned long data)
{
struct cx25821_data *timeout_data = (struct cx25821_data *)data;
struct cx25821_dev *dev = timeout_data->dev;
struct sram_channel *channel = timeout_data->channel;
const struct sram_channel *channel = timeout_data->channel;
struct cx25821_dmaqueue *q = &dev->channels[channel->i].vidq;
struct cx25821_buffer *buf;
unsigned long flags;
@ -365,7 +365,7 @@ int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
u32 count = 0;
int handled = 0;
u32 mask;
struct sram_channel *channel = dev->channels[chan_num].sram_channels;
const struct sram_channel *channel = dev->channels[chan_num].sram_channels;
mask = cx_read(channel->int_msk);
if (0 == (status & mask))
@ -787,9 +787,11 @@ static int video_release(struct file *file)
{
struct cx25821_fh *fh = file->private_data;
struct cx25821_dev *dev = fh->dev;
const struct sram_channel *sram_ch =
dev->channels[0].sram_channels;
/* stop the risc engine and fifo */
cx_write(channel0->dma_ctl, 0); /* FIFO and RISC disable */
cx_write(sram_ch->dma_ctl, 0); /* FIFO and RISC disable */
/* stop video capture */
if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
@ -923,7 +925,7 @@ static int vidioc_log_status(struct file *file, void *priv)
{
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
struct cx25821_fh *fh = priv;
struct sram_channel *sram_ch =
const struct sram_channel *sram_ch =
dev->channels[fh->channel_id].sram_channels;
u32 tmp = 0;

15
drivers/media/pci/cx25821/cx25821-video.h
View File

@ -63,19 +63,6 @@ do { \
#define MEDUSA_READ 910
#define MEDUSA_WRITE 911
extern struct sram_channel *channel0;
extern struct sram_channel *channel1;
extern struct sram_channel *channel2;
extern struct sram_channel *channel3;
extern struct sram_channel *channel4;
extern struct sram_channel *channel5;
extern struct sram_channel *channel6;
extern struct sram_channel *channel7;
extern struct sram_channel *channel9;
extern struct sram_channel *channel10;
extern struct sram_channel *channel11;
/* extern const u32 *ctrl_classes[]; */
extern unsigned int vid_limit;
#define FORMAT_FLAGS_PACKED 0x01
@ -98,7 +85,7 @@ extern int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input);
extern int cx25821_start_video_dma(struct cx25821_dev *dev,
struct cx25821_dmaqueue *q,
struct cx25821_buffer *buf,
struct sram_channel *channel);
const struct sram_channel *channel);
extern int cx25821_set_scale(struct cx25821_dev *dev, unsigned int width,
unsigned int height, enum v4l2_field field);

26
drivers/media/pci/cx25821/cx25821.h
View File

@ -126,20 +126,11 @@ struct cx25821_fh {
enum v4l2_priority prio;
/* video overlay */
struct v4l2_window win;
struct v4l2_clip *clips;
unsigned int nclips;
/* video capture */
struct cx25821_fmt *fmt;
unsigned int width, height;
int channel_id;
struct videobuf_queue vidq;
/* H264 Encoder specifics ONLY */
struct videobuf_queue mpegq;
atomic_t v4l_reading;
};
enum cx25821_itype {
@ -222,7 +213,7 @@ struct cx25821_dmaqueue {
struct cx25821_data {
struct cx25821_dev *dev;
struct sram_channel *channel;
const struct sram_channel *channel;
};
struct cx25821_channel {
@ -237,7 +228,7 @@ struct cx25821_channel {
struct video_device *video_dev;
struct cx25821_dmaqueue vidq;
struct sram_channel *sram_channels;
const struct sram_channel *sram_channels;
struct mutex lock;
int resources;
@ -470,7 +461,8 @@ struct sram_channel {
u32 jumponly;
u32 irq_bit;
};
extern struct sram_channel cx25821_sram_channels[];
extern const struct sram_channel cx25821_sram_channels[];
#define STATUS_SUCCESS 0
#define STATUS_UNSUCCESSFUL -1
@ -518,7 +510,7 @@ extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation,
int decoder);
extern int cx25821_sram_channel_setup(struct cx25821_dev *dev,
struct sram_channel *ch, unsigned int bpl,
const struct sram_channel *ch, unsigned int bpl,
u32 risc);
extern int cx25821_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
@ -537,16 +529,16 @@ extern void cx25821_free_buffer(struct videobuf_queue *q,
extern int cx25821_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
u32 reg, u32 mask, u32 value);
extern void cx25821_sram_channel_dump(struct cx25821_dev *dev,
struct sram_channel *ch);
const struct sram_channel *ch);
extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev,
struct sram_channel *ch);
const struct sram_channel *ch);
extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci);
extern void cx25821_print_irqbits(char *name, char *tag, char **strings,
int len, u32 bits, u32 mask);
extern void cx25821_dev_unregister(struct cx25821_dev *dev);
extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
struct sram_channel *ch,
const struct sram_channel *ch,
unsigned int bpl, u32 risc);
extern int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev,
@ -570,7 +562,7 @@ extern void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev);
extern void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev);
extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev);
extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
struct sram_channel *ch,
const struct sram_channel *ch,
unsigned int bpl, u32 risc);
extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel,
u32 format);