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@@ -237,7 +237,7 @@ static void cx25840_initialize(struct i2c_client *client)
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cx25840_write(client, 0x8d3, 0x1f);
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cx25840_write(client, 0x8e3, 0x03);
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- cx25840_vbi_setup(client);
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+ cx25840_std_setup(client);
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/* trial and error says these are needed to get audio */
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cx25840_write(client, 0x914, 0xa0);
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@@ -337,7 +337,7 @@ static void cx23885_initialize(struct i2c_client *client)
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finish_wait(&state->fw_wait, &wait);
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destroy_workqueue(q);
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- cx25840_vbi_setup(client);
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+ cx25840_std_setup(client);
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/* (re)set input */
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set_input(client, state->vid_input, state->aud_input);
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@@ -348,6 +348,153 @@ static void cx23885_initialize(struct i2c_client *client)
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/* ----------------------------------------------------------------------- */
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+void cx25840_std_setup(struct i2c_client *client)
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+{
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+ struct cx25840_state *state = i2c_get_clientdata(client);
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+ v4l2_std_id std = state->std;
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+ int hblank, hactive, burst, vblank, vactive, sc;
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+ int vblank656, src_decimation;
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+ int luma_lpf, uv_lpf, comb;
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+ u32 pll_int, pll_frac, pll_post;
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+
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+ /* datasheet startup, step 8d */
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+ if (std & ~V4L2_STD_NTSC)
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+ cx25840_write(client, 0x49f, 0x11);
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+ else
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+ cx25840_write(client, 0x49f, 0x14);
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+
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+ if (std & V4L2_STD_625_50) {
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+ hblank = 132;
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+ hactive = 720;
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+ burst = 93;
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+ vblank = 36;
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+ vactive = 580;
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+ vblank656 = 40;
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+ src_decimation = 0x21f;
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+ luma_lpf = 2;
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+
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+ if (std & V4L2_STD_SECAM) {
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+ uv_lpf = 0;
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+ comb = 0;
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+ sc = 0x0a425f;
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+ } else if (std == V4L2_STD_PAL_Nc) {
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+ uv_lpf = 1;
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+ comb = 0x20;
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+ sc = 556453;
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+ } else {
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+ uv_lpf = 1;
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+ comb = 0x20;
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+ sc = 688739;
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+ }
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+ } else {
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+ hactive = 720;
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+ hblank = 122;
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+ vactive = 487;
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+ luma_lpf = 1;
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+ uv_lpf = 1;
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+
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+ src_decimation = 0x21f;
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+ if (std == V4L2_STD_PAL_60) {
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+ vblank = 26;
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+ vblank656 = 26;
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+ burst = 0x5b;
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+ luma_lpf = 2;
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+ comb = 0x20;
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+ sc = 688739;
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+ } else if (std == V4L2_STD_PAL_M) {
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+ vblank = 20;
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+ vblank656 = 24;
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+ burst = 0x61;
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+ comb = 0x20;
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+ sc = 555452;
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+ } else {
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+ vblank = 26;
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+ vblank656 = 26;
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+ burst = 0x5b;
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+ comb = 0x66;
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+ sc = 556063;
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+ }
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+ }
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+
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+ /* DEBUG: Displays configured PLL frequency */
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+ pll_int = cx25840_read(client, 0x108);
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+ pll_frac = cx25840_read4(client, 0x10c) & 0x1ffffff;
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+ pll_post = cx25840_read(client, 0x109);
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+ v4l_dbg(1, cx25840_debug, client,
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+ "PLL regs = int: %u, frac: %u, post: %u\n",
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+ pll_int, pll_frac, pll_post);
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+
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+ if (pll_post) {
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+ int fin, fsc;
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+ int pll = (28636363L * ((((u64)pll_int) << 25L) + pll_frac)) >> 25L;
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+
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+ pll /= pll_post;
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+ v4l_dbg(1, cx25840_debug, client, "PLL = %d.%06d MHz\n",
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+ pll / 1000000, pll % 1000000);
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+ v4l_dbg(1, cx25840_debug, client, "PLL/8 = %d.%06d MHz\n",
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+ pll / 8000000, (pll / 8) % 1000000);
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+
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+ fin = ((u64)src_decimation * pll) >> 12;
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+ v4l_dbg(1, cx25840_debug, client,
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+ "ADC Sampling freq = %d.%06d MHz\n",
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+ fin / 1000000, fin % 1000000);
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+
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+ fsc = (((u64)sc) * pll) >> 24L;
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+ v4l_dbg(1, cx25840_debug, client,
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+ "Chroma sub-carrier freq = %d.%06d MHz\n",
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+ fsc / 1000000, fsc % 1000000);
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+
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+ v4l_dbg(1, cx25840_debug, client, "hblank %i, hactive %i, "
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+ "vblank %i, vactive %i, vblank656 %i, src_dec %i, "
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+ "burst 0x%02x, luma_lpf %i, uv_lpf %i, comb 0x%02x, "
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+ "sc 0x%06x\n",
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+ hblank, hactive, vblank, vactive, vblank656,
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+ src_decimation, burst, luma_lpf, uv_lpf, comb, sc);
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+ }
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+
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+ /* Sets horizontal blanking delay and active lines */
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+ cx25840_write(client, 0x470, hblank);
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+ cx25840_write(client, 0x471,
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+ 0xff & (((hblank >> 8) & 0x3) | (hactive << 4)));
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+ cx25840_write(client, 0x472, hactive >> 4);
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+
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+ /* Sets burst gate delay */
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+ cx25840_write(client, 0x473, burst);
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+
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+ /* Sets vertical blanking delay and active duration */
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+ cx25840_write(client, 0x474, vblank);
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+ cx25840_write(client, 0x475,
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+ 0xff & (((vblank >> 8) & 0x3) | (vactive << 4)));
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+ cx25840_write(client, 0x476, vactive >> 4);
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+ cx25840_write(client, 0x477, vblank656);
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+
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+ /* Sets src decimation rate */
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+ cx25840_write(client, 0x478, 0xff & src_decimation);
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+ cx25840_write(client, 0x479, 0xff & (src_decimation >> 8));
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+
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+ /* Sets Luma and UV Low pass filters */
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+ cx25840_write(client, 0x47a, luma_lpf << 6 | ((uv_lpf << 4) & 0x30));
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+
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+ /* Enables comb filters */
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+ cx25840_write(client, 0x47b, comb);
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+
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+ /* Sets SC Step*/
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+ cx25840_write(client, 0x47c, sc);
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+ cx25840_write(client, 0x47d, 0xff & sc >> 8);
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+ cx25840_write(client, 0x47e, 0xff & sc >> 16);
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+
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+ /* Sets VBI parameters */
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+ if (std & V4L2_STD_625_50) {
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+ cx25840_write(client, 0x47f, 0x01);
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+ state->vbi_line_offset = 5;
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+ } else {
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+ cx25840_write(client, 0x47f, 0x00);
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+ state->vbi_line_offset = 8;
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+ }
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+}
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+
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+/* ----------------------------------------------------------------------- */
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+
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static void input_change(struct i2c_client *client)
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{
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struct cx25840_state *state = i2c_get_clientdata(client);
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@@ -565,7 +712,7 @@ static int set_v4lstd(struct i2c_client *client)
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}
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cx25840_and_or(client, 0x400, ~0xf, fmt);
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cx25840_and_or(client, 0x403, ~0x3, pal_m);
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- cx25840_vbi_setup(client);
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+ cx25840_std_setup(client);
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if (!state->is_cx25836)
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input_change(client);
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return 0;
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